Components
321 companies providing lasers, optics, cables, and enabling technologies
Component Categories
Lasers
Precision lasers for trapping and manipulating qubits
Optics
Optical components, waveguides, and photonic circuits
Cables & Connectors
Microwave cables, coaxial connectors, and wiring
Vacuum Systems
Ultra-high vacuum chambers and pumps
Materials
Superconducting materials, diamond substrates, crystals
Electronics
Amplifiers, filters, and signal conditioning
The Quantum Supply Chain
Building a quantum computer requires a complex supply chain of specialized components. From precision lasers that manipulate individual atoms to superconducting cables that carry signals at millikelvin temperatures, each component must meet exacting specifications. This page lists companies providing these essential building blocks.
Component Suppliers
Active Technologies S.r.l.
Active Technologies is an Italian company manufacturing high-performance arbitrary waveform generators for quantum computing applications, including partnerships with Berkeley Nucleonics for North American distribution. The company designs and produces AWG systems used for quantum processor control, delivering the signal fidelity and timing precision required for quantum gate operations. Active Technologies brings European manufacturing expertise to the quantum control electronics supply chain, supporting the growing demand for quantum instrumentation.
AdTech Optics
AdTech Optics is a California-based company founded in 2001, specializing in the design, engineering, and manufacturing of mid-infrared semiconductor lasers based on quantum cascade technology. Located in City of Industry, California, AdTech Optics advanced beyond traditional semiconductor lasers in 2005, committing to the emerging field of quantum cascade lasers (QCLs). The company manufactures state-of-the-art mid-infrared QCLs for defense, environmental monitoring, and medical industries. AdTech Optics is a privately owned corporation employing approximately 35 people and received ISO 9001:2008 certification in 2015, demonstrating commitment to quality management. In January 2018, AdTech Photonics, Inc. acquired AdTech Optics, Inc., with the combined entity continuing to manufacture and expand the quantum cascade laser portfolio. AdTech's QCL technology serves quantum sensing applications requiring mid-infrared spectroscopy, including trace gas detection, chemical identification, and environmental monitoring. The company's quantum cascade lasers provide critical components for quantum sensing systems and spectroscopy applications across defense and scientific research sectors.
ADVA Optical
ADVA Optical Networking (now Adtran Networks following 2022 merger) is a German telecommunications equipment company founded in 1994, headquartered in Munich and Meiningen. ADVA develops quantum-safe networking solutions including quantum key distribution (QKD) integration, optical network infrastructure for quantum communications, and post-quantum cryptography implementations. The company collaborates with quantum technology providers and telecommunications operators deploying quantum-safe optical networks across Europe. ADVA serves telecommunications operators, enterprises, government agencies, and critical infrastructure sectors requiring quantum-safe communications and quantum network infrastructure. The company contributes to European quantum communication infrastructure development advancing quantum-safe networking and preparing telecommunications infrastructure for quantum internet and post-quantum security transitions protecting optical network security against quantum computing threats.
Advanced Diamond Technologies
Advanced Diamond Technologies (ADT) is a US materials company founded in 2003 that develops advanced diamond thin film materials and quantum-grade diamond products for quantum computing, quantum sensing, and quantum photonics applications, providing chemical vapor deposition (CVD) diamond films, diamond-on-insulator substrates, and custom diamond solutions with controlled nitrogen-vacancy centers and other quantum defects, serving quantum technology companies and research institutions with specialized diamond materials that enable quantum sensors, quantum memory devices, and quantum electronic applications requiring the exceptional properties of synthetic diamond for quantum information processing.
Advanced Research Systems
Advanced Research Systems designs and manufactures helium-free cryostats, flow cryostats, and cryogenic probe stations with temperature ranges from 1.5K to 800K for quantum research and materials science. Their probe stations feature fast vacuum pumping and sample exchange (130 minutes for 4-inch wafer), advanced probe thermalization enabling less than 5K sample temperatures, and configurations supporting magnetic fields up to 6T for quantum device testing. The company provides critical cryogenic infrastructure for quantum computing development and materials research.
Aegiq
Aegiq is a UK-based full-stack photonic quantum computing company spun out from the University of Sheffield in 2019, developing secure quantum communications using III-V semiconductor-based quantum photonics chips manufactured with elements like Gallium, Indium, and Arsenic rather than traditional Silicon. The company secured £1.4 million in funding from Innovate UK and won a £30 million quantum testbed competition funded by the National Quantum Computing Centre to deliver Artemis, their compact photonic quantum computer. Building on over 20 years of world-class research in semiconductors and quantum science, Aegiq develops quantum technology for fiber-optic and satellite-based applications, focusing on secure quantum communications and photonic quantum computing with their dedicated user interface for integration with NQCC testbed ecosystem.
Aeluma
Aeluma is a Goleta, California-based semiconductor company founded in 2019, developing quantum dot laser technology for silicon photonics applications in quantum computing and communication. The company pioneered advanced semiconductor manufacturing techniques using high-performance compound semiconductor materials on large-diameter substrates for mass-market microelectronics. Aeluma joined AIM Photonics as full industry member to accelerate quantum dot laser integration onto silicon photonics platforms using 300mm MOCVD capability. In May 2025, Aeluma and Thorlabs unveiled breakthrough large-diameter wafer manufacturing platform for quantum computing and communication, incorporating quantum dot sources and highly nonlinear electro-optic materials. The company trades on OTCQB under ticker ALMU, serving AI infrastructure, defense, aerospace, automotive, AR/VR, mobile, and quantum computing markets with photonic integrated circuit solutions.
Aeponyx
Aeponyx was a Montreal-based photonic integrated circuit (PIC) company founded in 2012, acquired by Pasqal on June 3, 2025. The company spent a decade in R&D developing its PIC platform combining Silicon Nitride (SiN) and Micro-Electro-Mechanical-Systems (MEMS) technologies, raising $22 million in venture capital. Aeponyx's PIC platform served telecom, datacom, life science, automotive, and quantum markets with applications requiring stable, precise optical control. The acquisition by Pasqal brought Aeponyx's 27-person team and intellectual property under CEO Philippe Babin's continued leadership, replacing delicate optical setups with chip-scale photonic circuits dramatically increasing stability of atom control and precision of individual qubit manipulation for Pasqal's neutral-atom quantum computers. Aeponyx strengthens Pasqal's photonic control capabilities accelerating development of fault-tolerant quantum computing systems.
Aerodyne Research
Aerodyne Research is a Massachusetts-based company founded in 1970, providing advanced research and development services and sensor products for environmental monitoring and atmospheric science. Headquartered in Billerica, Massachusetts, Aerodyne offers cutting-edge aerosol mass spectrometers, quantum cascade laser trace gas monitors, and particle monitoring systems. The company has commercialized compact gas analyzers based on quantum cascade lasers capable of detecting trace quantities of methane, N₂O, NO, NO₂, CO, CO₂, formaldehyde, formic acid, ethylene, acetylene, ammonia, and other gases at parts-per-billion concentrations. Aerodyne's dual quantum cascade laser spectrometers incorporate pulsed QC lasers, compact multipass absorption cells, dual detectors, and sophisticated signal processing for atmospheric trace gas detection. Serving industrial, academic, and government customers for over 50 years, Aerodyne Research provides quantum sensing technologies for environmental research, climate monitoring, industrial emissions measurement, and air quality assessment. The company's QCL-based instruments leverage quantum photonics for real-time, high-sensitivity gas detection supporting global environmental research initiatives.
Akela Laser
AKELA Laser Corporation is a New Jersey-based manufacturer of high-power laser diodes and custom photonic solutions serving medical, industrial, laser pumping, defense, and security applications. Founded in 2003 and relocated to its present facility in Jamesburg, NJ in 2014, AKELA provides a broad range of laser diodes with wavelengths ranging from 635nm to 2 microns. The company specializes in custom laser assemblies that offer any desired combination of light source, optics, cooling, and drivers tailored to specific application requirements. AKELA's laser diode technology supports quantum photonics research, quantum sensing applications, and serves as critical components in quantum computing systems requiring precise optical control. With expertise in high-power diode laser manufacturing and custom photonic integration, AKELA Laser serves both commercial and government customers developing next-generation quantum technologies.
Akhetonics
Akhetonics develops all-optical, reconfigurable processing units that function as quantum computers, analog processors, and digital processors. The technology claims 60x energy efficiency improvement and can be manufactured using legacy 90-250nm semiconductor nodes. November 2024: Raised €6 million seed funding led by Matterwave Ventures (total €8.3M including earlier €2.3M raise) to advance its cross-domain optical processor technology. 2025 Developments: Participating in SPOC project with Fraunhofer IZM (€400K funding from IBB, 2024-2026) for photonic computing advancement. Focus on developing general-purpose optical processors with quantum computing capabilities.
Alea Quantum Technologies
Alea Quantum is a Danish startup founded in March 2022, developing optical quantum random number generators (QRNG) based on over 20 years of research at Technical University of Denmark's quantum information group and bigQ research center. The company's QRNG uses laser diodes and detectors to form random numbers through measurements of vacuum fluctuations of laser light, providing 100% genuine random numbers at 4 gigabytes per second, faster and more secure than mathematical algorithm-based systems. Alea's technology measures 3 x 5 centimeters and has been tested by QTI (Quantum Telecommunication Italy) and Danske Bank for quantum-secured data transfer. The EU granted DKK 7 million under the Digital Europe programme for further development toward a chip-scale device integrating laser diode and detector on micrometer scale for mass market applications including mobile phones. DTU holds the patent for the technology. Alea Quantum serves cybersecurity and encryption technology vendors requiring ultra-secure random number generation.
Alpes Lasers
Alpes Lasers S.A. is a Swiss engineering company and manufacturer specializing in quantum cascade lasers (QCLs) and infrared lasers for scientific, industrial, and medical applications. Founded as a spin-off from the University of Neuchâtel by physicists Jérôme Faist, Antoine Muller, and Matthias Beck, the company pioneered the commercialization of quantum-cascade laser technology. Alpes Lasers is a leader in developing optoelectronic devices in the Mid-Infrared (MIR) and Near-Infrared (NIR) range, with applications in gas detection, spectroscopy, and quantum sensing. The company's QCL technology leverages quantum mechanical principles for advanced photonics applications, making them a key supplier to quantum research institutions and industries requiring precise infrared light sources. With over 25 years of experience, Alpes Lasers maintains its position as a global technology leader in quantum cascade laser systems.
Aluvia Photonics
Aluvia Photonics is a pioneering provider of photonic integrated circuits based on proprietary aluminium oxide (AlOx/Al2O3) material platform, founded in 2022 as a University of Twente spin-off. The technology was developed over more than a decade at the University of Twente by cofounder Prof. Sonia Garcia Blanco and her research team. Aluvia's AlOx platform offers broad spectral range from 200 nm to mid-IR (~3 µm) covering UV, visible, and infrared applications, ultra-low propagation losses as low as ~1 dB/cm at 369 nm and ~5 dB/m at 1550 nm, and on-chip optical amplification through rare-earth ion doping (Er3+, Yb3+, Nd3+, Tm3+). Using 200mm CMOS-compatible materials, Aluvia ensures compatibility with established manufacturing infrastructure for cost-effective scalability. Applications include quantum computing (ion traps), advanced telecommunications, sensing, optical amplifiers, O-band switches, and biomedical fields. Aluvia provides turnkey solutions including multi-project wafers, dedicated runs, and custom process development.
AMCG Co., Ltd.
AMCG develops MCG Scan, a medical system that measures bio-magnetic signals generated by the heart using superconducting quantum interference devices (SQUID). The next-generation quantum sensor technology provides high-precision cardiac diagnostics through non-invasive magnetocardiography. Exhibited at CES 2025 showcasing quantum sensor applications in medical imaging and cardiac health monitoring.
American Magnetics
American Magnetics Inc. (AMI) is an American manufacturer of superconducting magnet systems founded in 1968, headquartered in Oak Ridge, Tennessee. AMI provides superconducting magnets, cryogenic equipment, and magnet power supplies used in quantum computing research and quantum technology development. The company superconducting magnet systems enable precise magnetic field control required for quantum experiments, quantum materials research, and quantum device testing. AMI serves quantum computing companies, research universities, national laboratories, and quantum technology developers requiring high-performance superconducting magnets for quantum research and quantum processor development. The company contributes to quantum technology supply chain providing essential magnetic field control infrastructure for quantum computing hardware development and quantum physics experiments advancing practical quantum computer implementations.
AmpliTech Group
AmpliTech Group, Inc. (Nasdaq: AMPG) is a designer, developer, and manufacturer of state-of-the-art signal processing components for satellite, Public and Private 5G, and quantum computing networks. In December 2024, AmpliTech announced successful development of proprietary low-noise cryogenic High Electron Mobility Transistor (HEMT) amplifiers for quantum computing, delivering working units to two Fortune 50 companies, universities, and research institutions. The amplifiers enable quantum computers to operate efficiently at extremely low temperatures of 4 Kelvin (-452°F), minimizing noise at ultra-low temperatures for accurate quantum signal detection. AmpliTech positions itself as the only high-performance U.S. manufacturer offering this critical component at 4K temperatures. The USPTO issued a Notice of Allowance for AmpliTech's patent application related to their cryogenic quantum computing solution. The amplifiers support development of scalable, error-corrected quantum computers crucial for advancing AI capabilities.
Analog Devices
Analog Devices develops quantum control electronics and precision analog components for quantum computing applications, leveraging their expertise in high-performance analog and mixed-signal integrated circuits to create specialized electronics for quantum state control, measurement, and signal processing in quantum systems, providing essential electronic components and systems that enable precise manipulation and readout of qubits in various quantum computing platforms including superconducting, trapped ion, and photonic quantum computers.
Anametric
Anametric is building quantum photonic chips for cybersecurity, serving as a key part of Leidos' DARPA QuANET program after six years of development. The Austin company develops integrated photonic quantum devices. Anametric's quantum photonic chips enable secure quantum communications and quantum key distribution, addressing cybersecurity needs for defense and critical infrastructure applications.
AnharmoniQ
AnharmoniQ is a Chicago-based quantum hardware startup building critical hardware infrastructure for large-scale quantum computing. Selected for the inaugural Alchemist Chicago deep-tech cohort in October 2025, the company is part of Duality, the nation's first quantum startup accelerator. AnharmoniQ focuses on developing the hardware backbone needed to scale quantum computers beyond current limitations. The startup receives support from the University of Chicago's Polsky Center and strategic partners including IBM, which provides cloud access to quantum resources. AnharmoniQ is advancing quantum computing scalability through innovative hardware solutions that address key challenges in building practical quantum systems.
Anritsu
Anritsu Corporation is a Japanese telecommunications test and measurement equipment manufacturer founded in 1895, headquartered in Atsugi, Kanagawa. Anritsu provides test equipment for quantum communication systems including optical network analyzers, signal analyzers, and specialized measurement instruments for quantum key distribution (QKD) networks and quantum communication infrastructure validation. The company develops testing solutions for quantum-safe telecommunications and post-quantum cryptography implementations. Anritsu serves telecommunications operators, quantum technology companies, research institutions, and quantum network developers requiring precision test equipment for quantum communication systems. The company contributes to quantum communications infrastructure development providing essential test and measurement capabilities for quantum networking deployments and quantum-safe telecommunications validation advancing quantum technology commercialization in telecommunications sector.
ANU Quantum Optics Group
Australian National University (ANU) Quantum Optics Group is a leading quantum research center at ANU founded in 1946 (university), developing quantum random number generation technology and quantum security solutions. In May 2022, ANU partnered with API3 to launch API3 QRNG, the first true random number generator for smart contracts using quantum vacuum fluctuations measured through balanced homodyne detection. ANU's quantum random numbers are generated from electromagnetic field vacuum fluctuations at all frequencies, providing ultra-high bandwidth truly unpredictable randomness unlike pseudo-random generators. The QRNG system is hosted on Amazon Web Services with encrypted data transmission, available free to use (only gas fees) on 13 blockchain platforms including Polygon, Avalanche, Fantom, Metis, Moonbeam, and RSK. Applications include gaming, NFTs, lotteries, crypto wallet generation, and blockchain applications requiring quantum-level unpredictability. ANU Quantum Optics Group serves blockchain platforms, gaming companies, cryptographic applications, and research institutions requiring provably random numbers from natural quantum processes for secure applications.
AOSense
AOSense is a US quantum sensing company founded in 2004 as a Stanford University spinout by Brenton Young and Mark Kasevich that develops atom-optic quantum sensors for inertial navigation, precision timing, and gravity measurement, commercializing cold atom interferometry technology for compact gravimeters, accelerometers, gyroscopes, and atomic clocks that achieve laboratory-grade performance in portable field-deployable systems, serving DARPA, NASA, Air Force, Army, Navy, and intelligence community with quantum sensors for geophysical surveying, precision navigation, resource exploration, and underground monitoring applications that leverage laser-cooled atoms as ultra-precise test masses for measuring gravitational and inertial forces.
AOSense Defense
AOSense develops quantum inertial measurement units (IMUs) and gravimeters for GPS-denied navigation with Boeing partnership and Lockheed Martin contract work with Q-CTRL. The Sunnyvale company manufactures cold atom inertial sensors. AOSense's quantum sensors enable precision navigation for aircraft, ships, and submarines in environments where GPS is unavailable or unreliable, serving defense and aerospace applications.
API3
API3 partnered with Australian National University (ANU) Quantum Optics Group to launch API3 QRNG in May 2022, the first true random number generator for smart contracts using quantum vacuum fluctuations measured through balanced homodyne detection. ANU's quantum random numbers are generated from electromagnetic field vacuum fluctuations at all frequencies, providing ultra-high bandwidth truly unpredictable randomness unlike pseudo-random generators. API3 QRNG is free to use (only gas fees), available on 13 blockchain platforms including Polygon, Avalanche, Fantom, Metis, Moonbeam, and RSK. The system is hosted on Amazon Web Services with encrypted data transmission, destroying random numbers after use. Applications include gaming, NFTs, lotteries, crypto wallet generation, and blockchain applications requiring quantum-level unpredictability. API3 QRNG addresses Web3 security demands by providing quantum mechanics-based randomness for decentralized applications, smart contracts, and cryptographic operations requiring provably random numbers from natural quantum processes.
API3 QRNG
API3 is a Swiss blockchain technology company founded in 2020 that partnered with Australian National University (ANU) Quantum Optics Group to launch API3 QRNG in May 2022, the first true random number generator for smart contracts using quantum vacuum fluctuations. The quantum random numbers use electromagnetic field vacuum fluctuations measured through balanced homodyne detection, providing ultra-high bandwidth truly unpredictable randomness for blockchain and Web3 applications. API3 QRNG is free to use (only gas fees), available on 13 blockchain platforms including Polygon, Avalanche, Fantom, Metis, Moonbeam, and RSK. The system uses encrypted data transmission via Amazon Web Services, destroying random numbers after use for security. Applications include gaming, NFTs, lotteries, crypto wallet generation, and blockchain applications requiring quantum-level unpredictability. API3 QRNG addresses Web3 security demands by providing quantum mechanics-based randomness for decentralized applications, smart contracts, and cryptographic operations. The service serves blockchain developers, DeFi platforms, gaming applications, and cryptocurrency projects requiring provably random numbers from quantum processes.
Applied Quantum Materials
Applied Quantum Materials (AQM) is an ISO 9001 certified Canadian company headquartered in Edmonton, Alberta, founded in April 2015 as a spin-out from the University of Alberta. AQM is a global leader in the design, synthesis, and manufacturing of silicon quantum dots (SiQDs), silica nanomaterials, HSQ photo resist, quantum dot sensors, nanocomposite polymers, and gold and magnetic nanoparticles. AQM's biocompatible silicon quantum dots (2-9 nm) offer high quantum yield and robust stability as an alternative to toxic heavy-metal quantum dots. CEO David Antoniuk holds a Ph.D. in engineering physics. AQM's materials serve Fortune 100 manufacturers of quantum computers, photonic and memory chips, sensors, and smart textiles, with applications in quantum computing, silicon photonics, quantum sensing, health sciences, display technology, and security. Sales climbed roughly 60% last fiscal year.
AQSolotl
AQSolotl is an NTU and NUS spin-off that launched the CHRONOS-Q quantum controller in December 2024, bridging conventional computers with quantum systems. The company develops quantum control electronics that manage and orchestrate quantum computing operations. AQSolotl's CHRONOS-Q controller provides the critical interface between classical computing infrastructure and quantum processors, addressing scalability challenges in quantum computing by enabling efficient control of increasing numbers of qubits.
Aquabits
Aquabits develops scalable multiqubit trapped ion technology at a fraction of traditional costs for quantum computing. Inspired by the transport of water molecules in naturally occurring proteins called Aquaporins, Aquabits invented a novel, simple, and low-cost method to trap ions inside artificial water channels. This breakthrough method circumvents the need for bulky lasers and expensive micro-nano fabrication techniques, creating an unparalleled potential for a scalable multi-qubit system. Founded in December 2020 and spun out from the University of Waterloo's Institute for Quantum Computing, Aquabits aims to provide affordable quantum technology for all.
Aquark Technologies
Aquark Technologies is a UK National Quantum Technologies Programme spinout focused on high-precision measurement technology and quantum sensing. The company successfully demonstrated quantum sensing at sea in partnership with the Royal Navy. Aquark develops portable quantum sensors for navigation, timing, and gravimetry applications in defense, aerospace, and industrial sectors.
Arago
Arago is a French photonic-AI company that emerged from stealth in July 2025 with $26 million in seed funding co-led by Earlybird, Protagonist, and Visionaries Tomorrow. The company combines silicon photonics with free-space optics to create AI accelerators targeting 10x lower energy consumption than traditional GPUs. Arago ships a PyTorch-compatible software stack called CARLOTA, enabling seamless integration with existing AI workflows. The company's photonic computing approach leverages the speed of light for matrix operations, dramatically reducing both latency and power consumption for AI inference workloads. The founding team brings expertise from leading photonics and semiconductor companies, positioning Arago at the intersection of quantum photonics and practical AI acceleration.
Arctic Instruments
Arctic Instruments is a VTT spinout manufacturing near-quantum-limited superconducting microwave amplifiers for large-scale quantum computers. The company is the only manufacturer capable of supplying thousands of amplifiers with the required quality and consistency for 10,000+ qubit quantum systems. December 2024: Raised €2.35 million ($2.47M) seed funding led by Lifeline Ventures to scale production of superconducting amplifiers for quantum computing. 2025 Developments: Focus on scaling manufacturing capacity to meet growing demand from quantum computing companies. Key infrastructure provider for superconducting quantum processors requiring ultra-low noise amplification at millikelvin temperatures. Founded by Joonas Govenius (CEO).
Arque Systems
Arque Systems is a German quantum technology company founded in 2020 that develops silicon-spin qubit infrastructure and quantum device components, specializing in the design and fabrication of silicon-based quantum systems that leverage semiconductor manufacturing processes for scalable quantum computing applications, providing essential infrastructure components and services for the quantum computing industry with focus on CMOS-compatible quantum devices and silicon spin qubit technology development.
Atlantic Microwave
Atlantic Microwave is a British manufacturer and supplier of radio frequency (RF) and microwave components and equipment founded in 1989, located in Braintree, Essex, acquired by ETL Systems Ltd in January 2019. The company works with key players in cryogenic industry providing RF and microwave components operating down to cryogenic temperatures of 4K and below for quantum computing applications. Atlantic Microwave manufactures cryogenic low-noise amplifiers revolutionizing readout of quantum bits, operating in ultra-low temperature environments to increase signal-to-noise ratio in quantum read-out circuits. ETL Systems through Atlantic Microwave offers high-grade components for cutting-edge quantum technology research including low phase noise oscillators, multipliers, couplers, and cables designed to withstand rigorous conditions of cryostats. Atlantic Microwave serves quantum computing manufacturers, research institutions, and cryogenic equipment providers requiring RF components capable of operating at temperatures as low as 4K for quantum processor readout and control systems.
Atlas Technologies
Atlas Technologies specializes in bimetallic (dissimilar metal) joining technology for Ultra High Vacuum (UHV) and Extreme High Vacuum (XHV) applications essential for quantum computing. The company manufactures custom UHV/XHV chambers and bimetal components using proprietary techniques to bond aluminum, titanium, and other metals. Atlas vacuum chambers achieve outgassing rates below 1 x 10-13 Torr liter/sec cm² making them suitable for quantum science applications. Their products offer no magnetic impact, low hydrogen and carbon contamination, maximum thermal performance, and excellent vibration dampening. Quantum and cryogenic researchers worldwide rely on Atlas for developing chambers that meet exacting UHV/XHV criteria in quantum computing systems.
AUREA Technology
AUREA Technology is a French company specializing in advanced quantum sensing and measurement technologies, developing precision instruments based on quantum physics principles for scientific, industrial, and defense applications. The company designs and manufactures quantum-enhanced sensors including atomic magnetometers, quantum gravimeters, and precision timing systems that leverage atomic and optical physics to achieve unprecedented measurement accuracy. AUREA's quantum sensing solutions serve applications in geophysical surveying, fundamental physics research, navigation systems, and industrial process monitoring, providing customers with quantum sensors that deliver superior performance compared to classical measurement technologies. The company combines expertise in atomic physics, laser technology, and precision engineering to develop quantum sensing systems for demanding applications requiring the highest levels of measurement precision and stability.
Ayar Labs
Ayar Labs is an MIT spin-out pioneering optical I/O chiplets that integrate silicon photonics with CMOS electronics, featuring 70 million transistors and over 10,000 optical devices per chip. The company partners with GlobalFoundries, TSMC, Intel, and AMD for high-volume manufacturing of in-package optical interconnect solutions including the SuperNova light source and TeraPHY optical I/O chiplet. Ayar Labs raised $155 million Series D led by Intel, AMD, and Nvidia, with commercial offerings expected between projected 2026-2028 for AI infrastructure and data center applications.
Barber-Nichols
Barber-Nichols was founded in 1966 by Bob Barber and Ken Nichols as turbomachinery engineering company located in Arvada, Colorado, a suburb of Denver. The company manufactures vacuum jacketed extended shaft pumps, circulators, blowers, and compressors for use in cryogenic systems to optimize system performance. Since 1976 when Barber-Nichols designed and manufactured its first cryogenic pump, these custom-manufactured and engineered products have served broad range of demanding and sensitive applications. Barber-Nichols cryogenic pumps are used in physics research applications including CERN ATLAS detector pumping liquid helium coolant through superconducting magnetic coils. The company provides cryogenic pumping solutions for quantum computing systems requiring liquid nitrogen and liquid helium circulation at ultra-low temperatures. Barber-Nichols serves quantum computing manufacturers, physics research facilities, and cryogenic system providers requiring specialized pumps for dilution refrigerators and quantum processor cooling infrastructure.
BASF
BASF SE is a German multinational chemical company founded in 1865, headquartered in Ludwigshafen, Germany, largest chemical producer in the world. BASF explores quantum computing applications for computational chemistry including catalyst design, materials discovery, chemical process optimization, and molecular simulation. The company collaborates with quantum computing providers including IBM, Microsoft, and others developing quantum algorithms for chemical industry applications. BASF investigates quantum simulation for understanding chemical reactions and designing new materials with improved properties. The company serves global chemical industry requiring quantum-enhanced computational capabilities for materials science, process optimization, and product development. BASF advances quantum computing applications in chemistry demonstrating practical quantum advantage for chemical industry and materials science accelerating materials discovery and chemical process optimization through quantum technology.
Berkeley Nucleonics Corporation
Berkeley Nucleonics Corporation produces the world's fastest 16-bit AWG (Model 685) for quantum computing with 6.16 GS/s sample rate and 110ps rise time, used for qubit control in research laboratories. The company manufactures high-performance arbitrary waveform generators, pulse generators, and timing instruments essential for quantum computing control systems. Berkeley Nucleonics' Model 685 AWG represents the state-of-the-art in quantum control electronics, enabling researchers to generate the precise, fast waveforms needed to manipulate quantum states with high fidelity.
Bifrost Electronics
Bifrost Electronics is a Colorado-based quantum hardware startup founded in 2025, headquartered on the Elevate Quantum campus near Boulder. The company develops next-generation quantum readout and amplification hardware, creating a new class of traveling wave parametric amplifier (TWPA) that eliminates the need for Josephson Junctions. Their Heimdall TWPAs remain unaffected by magnetic fields over 2T, requiring no shielding and enabling dense packing in cryostats. CEO Zenith Tillemann-Dick notes that conventional quantum amplification devices are 'about the size of a cinder block' with 100,000 needed for utility-scale quantum computers—Bifrost built equivalent technology on a 10mm chip. In July 2025, the company raised $2.5M in seed funding led by Caruso Ventures with Harlow Capital. Bifrost collaborates with U.S. industry leaders including FormFactor, Rigetti Computing, and Maybell Quantum Industries to tailor systems for commercial deployments.
Bluefors
Bluefors is a Finnish cryogenic technology company founded in 2008 by Rob Blaauwgeers and Pieter Vorselman that has become the global market leader in ultra-low temperature cooling systems for quantum computing, with over 1,500 systems installed worldwide including their flagship LD System and KIDE Cryogenic Platform supporting over 1,000 qubits, pioneering liquid-free dilution refrigerator technology that achieves 10 millikelvin temperatures through a five-stage cascade approach, serving as the industry standard for superconducting quantum computers with over 700 employees globally. November 2025: Bluefors unveiled next-generation dilution refrigerators with improved cooling capacity and reduced helium consumption, addressing sustainability concerns in quantum computing infrastructure. The company expanded manufacturing capacity to meet growing demand from quantum computing companies scaling to higher qubit counts. 2025 Developments: Partnership with Linde continues for large-scale quantum computing cooling solutions. Launched enhanced cooling systems with doubled 4K cooling power and high-density flex wiring for high qubit count applications. Expanded global service network to support growing installed base of cryogenic systems.
Bosch Quantum Sensing
Bosch Quantum Sensing is a startup established in 2022 by Robert Bosch GmbH to commercialize quantum sensors, building on over 10 years of foundational research in quantum sensing. The company develops magnetic-field quantum sensors that are compact, robust, and user-friendly, delivering measurements with unprecedented accuracy in portable devices about the size of a cell phone. Their cutting-edge sensor technology harnesses quantum physics principles to achieve measurements nearly 1,000 times more precise than today's MEMS sensors, with applications in medical technology for diagnosing neurological conditions like Alzheimer's and Parkinson's, cardiac monitoring, aircraft navigation systems, consumer goods, resource exploration, and process optimization. The company operates as a joint venture with Element Six, the world's leading synthetic diamond solutions provider, with Bosch as the lead partner and Element Six holding a 25% stake.
Broadcom
Broadcom develops quantum photonics components and integrated photonic solutions for quantum computing and quantum communication applications, leveraging their semiconductor and photonics expertise to create specialized components including quantum light sources, photonic integrated circuits, and optical components essential for photonic quantum systems, providing the foundational photonic infrastructure needed for scalable photonic quantum computing, quantum networking, and quantum sensing applications through advanced silicon photonics technology.
C2MI
C2MI (MiQro Innovation Collaborative Centre) is Canada's leading hub for innovation in MEMS and semiconductor packaging founded November 1, 2011, with official inauguration July 2012, based in Bromont, Québec. C2MI is expanding into quantum chip manufacturing with new quantum fabrication facility dedicated to superconducting quantum chips expected operational targeting 2026. The facility features PVD system with unique capabilities essential for creating highly precise and reliable components for superconducting quantum circuits including Josephson Junctions, foundational element of quantum processors. Anyon Systems signed MOU with C2MI confirming collaboration in developing industrial-grade quantum fabrication facility. C2MI partnership with Nord Quantique provides industrial-grade fabrication for superconducting qubits. C2MI serves Canadian quantum computing manufacturers requiring industrial-scale superconducting qubit fabrication with advanced semiconductor packaging capabilities supporting quantum processor development and quantum computing hardware manufacturing.
CAN Superconductors
CAN Superconductors s.r.o. is a Czech manufacturer of superconducting materials and components serving quantum computing and other advanced technology sectors. The company produces superconducting wires, tapes, and materials essential for quantum computing systems requiring ultra-low temperature superconducting components. CAN Superconductors manufactures High Temperature Superconductor (HTS) materials used in quantum computing infrastructure including superconducting qubits, quantum interconnects, and cryogenic systems. As a European superconductor manufacturer, CAN Superconductors serves quantum computing companies, research institutions, and cryogenic equipment manufacturers requiring high-quality superconducting materials. The company provides custom superconducting solutions for quantum processors, quantum communication systems, and quantum sensing applications demanding superior superconducting performance at cryogenic temperatures.
CAS Cold Atom
CAS Cold Atom (中科酷原) is a Wuhan-based quantum computing company founded in 2020, developing neutral atom quantum computers based on technology from the Chinese Academy of Sciences. The company released 'Hanyuan-1' (寒原一号), one of China's first commercial neutral atom quantum computing systems. CAS Cold Atom focuses on scalable neutral atom quantum processors using optical tweezers and laser cooling techniques to trap and manipulate individual atoms as qubits. The company represents China's efforts to commercialize neutral atom quantum computing technology, competing with international players in this promising qubit modality known for its potential scalability and long coherence times. 2025 Developments: The company continues to advance its neutral atom quantum computing technology in 2025, focusing on increasing qubit counts and improving gate fidelities for practical quantum computing applications.
CatQ
CatQ is a spinout from The Australian National University tackling error correction in quantum computing with breakthrough technology that pre-emptively corrects optical quantum errors. The company's approach boosts quantum computing performance up to 1,000x by implementing advanced error correction schemes for photonic quantum computers. CatQ focuses on developing fault-tolerant optical quantum computing systems for practical applications.
CCRAFT
CCRAFT is a Swiss-based photonic chip foundry launched in April 2025 as a CSEM spin-off, committed to advancing thin-film lithium niobate (TFLN) technology for scalable, high-volume manufacturing. CCRAFT is the world's first production-ready pure-play foundry offering chips based on TFLN technology, built on over six years of pioneering R&D at CSEM (Swiss Center for Electronics and Microtechnology). CEO and founder Hamed Sattari leads the company headquartered in Neuchâtel. TFLN chips promise up to 8 times higher speed and consume up to 10 times less energy than conventional optical components, enabling data transmission beyond 1.6 Tbit/s. CCRAFT manufactures photonic integrated circuits for optical communication, AI data centers, and quantum technologies. With planned expansion in Neuchâtel, CCRAFT aims to reach 12 million chips annual output by targeting 2030, targeting up to 30% of the global market for high-speed photonic circuits.
Centice
Centice is a North Carolina-based company developing chemical verification and identification technology using quantum sensing principles. The company received funding from Quantum Wave Fund and creates advanced sensors for detecting and analyzing chemical compounds in various applications including security, environmental monitoring, and industrial process control. Centice's technology enables rapid, accurate chemical identification in the field.
Cerca Magnetics
Cerca Magnetics is a Canadian quantum sensing company developing optically pumped magnetometers for medical imaging and geophysical exploration. The company manufactures OPM sensors based on atomic vapor cells that detect extremely weak magnetic fields. Cerca Magnetics targets medical applications including magnetoencephalography (MEG) for brain imaging, as well as geophysical applications for mineral exploration and archaeological surveying where ultra-sensitive magnetic field detection provides valuable measurement capabilities.
Cerca Magnetics UK
Cerca Magnetics develops optically pumped magnetometers (OPM) using rubidium atoms for medical and defense applications with Lego-brick sized devices. The Nottingham company manufactures compact quantum magnetometers. Cerca Magnetics' miniaturized OPM sensors enable brain imaging, geophysical surveying, and defense applications where compact, sensitive magnetic field detection provides critical measurement capabilities.
Chipiron
Chipiron develops advanced quantum chip technology and semiconductor solutions for quantum computing applications, focusing on the design and fabrication of quantum devices with improved performance characteristics and integration capabilities for next-generation quantum processors and quantum systems.
Ciena
Ciena Corporation is an American telecommunications networking equipment and software services company founded in 1992, headquartered in Hanover, Maryland. Ciena develops quantum-safe networking solutions including quantum key distribution (QKD) integration, post-quantum cryptography implementations, and quantum-secure optical networks. The company WaveLogic coherent optical technology supports quantum communication infrastructure and quantum networking deployments. Ciena collaborates with telecommunications operators and quantum technology providers advancing quantum-safe network infrastructure. The company serves global telecommunications markets, enterprise networks, cloud providers, and government agencies requiring quantum-safe communications and post-quantum security. Ciena invests in quantum networking research preparing telecommunications infrastructure for quantum internet and quantum-enhanced networking protecting network security against emerging quantum computing threats to current encryption standards.
CIQTEK
CIQTEK is a quantum precision measurement technology company born from the Key Laboratory of Microscopic Magnetic Resonance at the Chinese Academy of Sciences. The company manufactures diamond quantum computers for education and research based on NV center spin magnetic resonance, operating at room temperature for accessible quantum computing experimental courses. CIQTEK products are sold to hundreds of universities, companies, and hospitals worldwide for quantum research and precision measurement applications.
Circor
Circor International is a Massachusetts-based manufacturer founded in 1999, providing cryogenic valves, vacuum insulated products, cryogenic filters, and complex vacuum insulated piping systems for quantum computing and aerospace applications. The company manufactures specialized cryogenic components for ultra-low temperature systems including dilution refrigerators used in quantum computing. Circor's cryogenic valves and vacuum-insulated piping systems enable precise control of cryogenic fluids in quantum processor cooling infrastructure operating at millikelvin temperatures. The company's products support quantum computing cryogenic systems requiring reliable fluid management for liquid helium and liquid nitrogen cooling. Circor serves quantum computing manufacturers, aerospace companies, research laboratories, and cryogenic equipment providers requiring high-performance cryogenic valves and vacuum-insulated components for quantum processors, superconducting systems, and ultra-low temperature research applications. Circor's cryogenic expertise supports quantum computing infrastructure requiring specialized fluid handling at extreme temperatures.
Cisco
Cisco Systems Inc. is a San Jose-based technology company founded in 1984, developing quantum networking technology and quantum internet infrastructure through Cisco Quantum Labs established in Santa Monica and San Jose facilities. In May 2025, Cisco formally opened its Quantum Labs facility in Santa Monica, unveiling industry-first quantum technologies including network-aware distributed quantum compiler enabling quantum algorithms across multiple networked processors, vendor-agnostic quantum networking framework, and prototype quantum entanglement chip developed with UC Santa Barbara generating one million entangled photon pairs per second at room temperature. Cisco's quantum networking vision accelerates practical quantum computing applications from decades to 5-10 years, creating foundation for quantum internet. Cisco announced industry-first compiler supporting distributed quantum error correction, working with any quantum computing technology to enable scalable quantum data centers and quantum communication networks worldwide. In September 2025, Cisco expanded its quantum networking software portfolio with enhanced network orchestration capabilities for quantum key distribution (QKD) networks, enabling enterprise-grade quantum-safe communications infrastructure and integration with existing network management systems for hybrid classical-quantum network deployments. 2025 Developments: Cisco partnered with Nu Quantum and others in Quantum Datacenter Alliance (March 2025).
Clifton
Clifton is an Estonian company that created a new class of high-voltage semiconductors used by power electronics manufacturers in Europe, Asia, and America in industries ranging from mining to space technology. The company received early funding from Quantum Wave Fund and develops advanced materials with quantum properties for power electronics and energy applications. Clifton's innovations enable more efficient energy conversion and power management systems.
CNRS
Centre National de la Recherche Scientifique (CNRS) is French national research institution founded in 1939, headquartered in Paris, France, largest fundamental science agency in Europe. CNRS conducts quantum research through multiple laboratories and research units advancing quantum physics quantum computing quantum materials and quantum technologies. The organization researchers contribute to fundamental quantum science quantum hardware development and quantum applications. CNRS collaborates with French quantum companies and European research institutions. CNRS serves global quantum research community through world-class quantum research and scientific excellence supporting French quantum technology strategy and European quantum research leadership advancing quantum information science.
Coherent
Coherent is a vertically integrated supplier of lasers, photonic devices, and laser measurement systems for communications, electronics, and instrumentation markets. The company manufactures silicon photonics, VCSEL arrays, lenses, filters, isolators, laser sources, and measurement equipment serving quantum photonics applications, industrial processing, and optical networking. Coherent provides comprehensive coherent transceivers and modules for global communications networks and quantum systems. The company was formed through the 2022 merger of II-VI and Coherent Inc.
Columbia University
Columbia University is a private Ivy League research university founded in 1754, located in New York City. Columbia conducts quantum research through Department of Physics and quantum engineering programs advancing quantum computing quantum materials and quantum technologies. The university researchers contribute to quantum algorithms quantum hardware and quantum applications development. Columbia collaborates with quantum companies and maintains quantum research partnerships. The university serves quantum research community through quantum research quantum education and technology transfer advancing quantum information science. Columbia contributes to USA quantum technology ecosystem supporting quantum innovation and quantum technology development representing New York quantum research excellence.
Comcast
Comcast Corporation is an American telecommunications conglomerate founded in 1963, headquartered in Philadelphia, Pennsylvania. Comcast explores quantum-safe security for cable and telecommunications networks investing in post-quantum cryptography to protect communications infrastructure. In October 2025, Comcast launched a quantum lab and began trials using quantum computing to improve broadband network management, partnering with D-Wave Quantum Inc. and Classiq to test applications such as traffic optimization and predictive issue resolution, marking a significant step in applying quantum computing to telecommunications infrastructure. The company investigates quantum technologies for network security and prepares telecommunications infrastructure for quantum computing threats. Comcast serves US telecommunications and cable markets providing broadband internet cable television and telephony services. The company contributes to quantum-safe telecommunications development preparing network infrastructure for post-quantum security transitions protecting telecommunications networks and customer data against emerging quantum computing threats to current encryption standards.
Compute Everything
Compute Everything is a Canadian quantum computing software company founded in 2025, based in St. John's, Newfoundland. The company specializes in developing classical, quantum, and hybrid algorithms for computational chemistry applications. The company focuses on materials science and drug discovery, developing proprietary quantum chemistry solutions that leverage both classical and quantum computing resources. Their approach combines traditional computational methods with emerging quantum algorithms to tackle complex molecular simulations and materials design challenges. Compute Everything represents part of the growing Canadian quantum ecosystem that includes companies like Xanadu, 1QBit (D-Wave), and Good Chemistry Company, contributing to Canada's position as a global leader in quantum computing software and applications development.
Cornell University
Cornell University is a private Ivy League research university founded in 1865, located in Ithaca, New York. Cornell conducts advanced quantum research advancing quantum materials quantum computing and quantum technologies. The university excels in quantum materials science superconducting devices and quantum hardware development. Cornell researchers contribute to quantum algorithms quantum error correction and quantum applications. The university has produced quantum technology spinouts and maintains strong quantum industry partnerships. Cornell serves quantum research community through quantum research quantum education and technology transfer advancing quantum information science and quantum materials development supporting USA quantum technology leadership.
CreativeQuantum
CreativeQuantum provides quantum mechanics-based R&D services for chemical and pharmaceutical industries. The Leverkusen company offers quantum chemistry consulting. CreativeQuantum helps chemical and pharmaceutical companies apply quantum mechanical simulation methods to accelerate R&D, improve product development, and solve complex molecular modeling challenges in materials science and drug discovery.
Creotech Instruments
Creotech Instruments is Poland's leading space technology company founded in 2012 by CERN alumni, developing quantum computing control electronics and quantum telecommunications systems. The company is one of only a few worldwide developing controls for quantum computers, selected by the European High Performance Computing Joint Undertaking (EuroHPC JU) for the EU's first distributed network of large quantum computers, a €100 million project. Creotech's Sinara line ion trap products are critical elements of quantum computer control systems built under AQTION as part of the Quantum Flagship initiative funded by the European Commission. The company employs approximately 200 people and is listed on the Warsaw Stock Exchange, contributing to Poland's emerging quantum ecosystem with quantum computer control systems and telecommunications technologies.
Cryocomp
Cryocomp is the valves division of parent company Cryofab Inc., with history beginning with 1994 founding of DLH Industries, acquired by Cryofab Inc. in December 2014. Cryofab was founded in 1971 as global leader in design and supply of cryogenic dewars, storage vessels, and transfer systems. Cryocomp specializes in vacuum insulated equipment for safe and efficient transfer of liquid nitrogen, helium, argon, oxygen, and hydrogen. The company manufactures liquid nitrogen valves, liquid helium valves, and cryogenic solenoid valves essential for quantum computing cryogenic infrastructure. Cryocomp located in Kenilworth, New Jersey, provides cryogenic valve solutions for ultra-low temperature applications in quantum processors requiring liquid helium cooling systems. Cryocomp serves quantum computing manufacturers, research laboratories, and cryogenic system providers requiring specialized valves for dilution refrigerators and quantum computing cryogenic infrastructure operating at millikelvin temperatures.
CryoConcept
CryoConcept, an Air Liquide affiliate since 2020, designs and builds ultra-low temperature dilution refrigerator systems capable of reaching temperatures below 10mK. Founded in 2000 as a spin-off from CEA (French Alternative Energies and Atomic Energy Commission), the company specializes in cryogenic infrastructure essential for superconducting quantum computers. CryoConcept's unique Ultra Quiet Technology (UQT) reduces vibrations across the entire cryostat, providing highly stable experimental environments. Their product range includes HEXA-DRY cryogen-free and HEXA-WET liquid helium dilution refrigerators, with the HEXA-DRY XXL Solutions specifically designed for quantum computing applications. The company employs specialists in deep refrigeration using helium-3/helium-4 dilution technology, serving research institutions and quantum computing companies worldwide requiring millikelvin operating temperatures.
Cryomagnetics
Cryomagnetics Inc. is a leading manufacturer of superconducting magnet systems and cryogenic equipment founded in 1969, based in Oak Ridge, Tennessee, serving quantum computing and scientific research markets. The company manufactures superconducting magnets, cryostats, and cryogenic systems essential for quantum computing applications requiring ultra-low temperatures and high magnetic fields. Cryomagnetics provides superconducting magnet solutions for quantum processors, quantum sensing systems, and quantum research requiring precise magnetic field control at cryogenic temperatures. The company's products support superconducting qubit systems, trapped ion quantum computers, and quantum sensing applications. Cryomagnetics serves quantum computing manufacturers, national laboratories, universities, and research institutions requiring reliable superconducting magnet systems and cryogenic infrastructure for quantum technology development and quantum physics research.
Crypta Labs
Crypta Labs is a UK quantum security company founded in 2014 that specializes in quantum random number generation technology providing true quantum randomness for cryptographic applications, developing quantum entropy sources and random number generators that leverage quantum physical processes to produce unpredictable randomness essential for encryption keys, digital signatures, and secure protocols, serving cybersecurity companies, telecommunications providers, and organizations requiring certified high-quality entropy sources for quantum-safe cryptography and secure communications infrastructure.
Crypto Quantique
Crypto Quantique is a UK quantum security company founded in 2016 that develops quantum-driven IoT security solutions using quantum tunneling effects in semiconductor devices to generate unique cryptographic keys and device identities, providing hardware-based quantum random number generation and quantum-enhanced security for Internet of Things devices, edge computing systems, and connected infrastructure, enabling secure device authentication, encrypted communications, and tamper-resistant security solutions for smart cities, automotive, industrial IoT, and consumer electronics applications requiring quantum-grade security at scale.
Crypto4A
Crypto4A is a Canadian cybersecurity firm developing quantum-safe hardware security modules (HSMs) and integrated cryptographic platforms for enterprises and government agencies. Their flagship product QxHSM provides quantum-safe and crypto-agile hardware security solutions addressing evolving fundamental security threats. The company focuses on secure manufacturing and Industry 4.0 applications with $3.75M repayable contribution from Canada's Federal Economic Development Agency for Southern Ontario as part of a $7.5M Quantum-Safe Secure Manufacturing Initiative.
Cutting Edge Superconductors
Cutting Edge Superconductors Inc. is a USA-based manufacturer of high-quality superconducting materials and components for quantum computing and advanced technology applications. The company specializes in production of superconducting wires, tapes, and materials used in quantum computing systems, cryogenic electronics, and superconducting circuits. Cutting Edge Superconductors manufactures High Temperature Superconductor (HTS) and Low Temperature Superconductor (LTS) materials essential for quantum processors, superconducting qubits, and quantum computing infrastructure. The company provides custom superconducting solutions for quantum computing manufacturers requiring precision superconducting materials with superior performance characteristics. Cutting Edge Superconductors serves quantum technology companies, research laboratories, and cryogenic system manufacturers needing high-performance superconducting components for quantum computing, quantum sensing, and superconducting electronics applications.
Delft Circuits
Delft Circuits is a Dutch quantum technology company founded in 2017 as a QuTech spinout that specializes in manufacturing high-performance cryogenic quantum cables and interconnects essential for quantum computing systems. The company's core product, Cri/oFlex® cabling, provides low-noise, high-fidelity signal transmission solutions that enable precise control and readout of qubits in dilution refrigerators. December 2025: Appointed Martin Danoesastro as CEO and secured €8M Series A extension, bringing total funding to €15M. Investment will accelerate product innovation and expand manufacturing capacity for Cri/oFlex® cabling. Delft Circuits serves quantum computing companies worldwide with critical infrastructure components that maintain signal integrity at millikelvin temperatures required for superconducting quantum processors.
Department of Energy
The US Department of Energy (DOE) leads major quantum computing and quantum information science initiatives through its Office of Science, national laboratories, and research programs, coordinating quantum research across institutions including Argonne, Oak Ridge, and Lawrence Berkeley National Labs, funding quantum computing testbeds, quantum network development, and quantum algorithm research for scientific computing applications, overseeing the National Quantum Information Science Research Centers and supporting the National Quantum Initiative to advance US leadership in quantum technologies for energy, materials science, and scientific discovery applications.
DeteQt
DeteQt is a University of Sydney spinout developing diamond-on-silicon quantum magnetometers for GPS-denied navigation, mineral detection, and portable medical imaging applications. The company's technology leverages nitrogen-vacancy (NV) centers in diamond integrated with silicon photonics for compact, high-sensitivity magnetic field sensing. March 2025: Secured $750K pre-seed funding from Main Sequence Ventures and ATP Fund, plus $3M contract from Australian Defence Force for navigation applications.
Deutsche Telekom
Deutsche Telekom AG is a German telecommunications company founded in 1995 headquartered in Bonn conducting pioneering quantum communications research and deployments. In 2023 Deutsche Telekom and Qunnect succeeded in stable transmission of entangled photons over 82 kilometers establishing milestone in quantum networking. Deutsche Telekom opened Quantum Lab in Berlin in 2023, a test laboratory including research fiber optic network allowing testing of latest quantum communication technology and quantum security concepts. The company develops quantum key distribution networks for ultra-secure communications and explores quantum networking for telecommunications infrastructure. Deutsche Telekom serves telecommunications operators enterprises government agencies and defense sectors requiring quantum-safe communications and quantum network infrastructure for critical data transmission.
Diamond Quanta
Diamond Quanta is a semiconductor innovation company pioneering breakthrough lab-grown diamond technology with its 'Unified Diamond Framework' for true substituent doping. The company develops advanced power electronics and quantum photonic platforms, leveraging diamond's superior thermal conductivity and charge carrier mobility for high-performance applications. Diamond Quanta is backed by Silicon Catalyst and Plug and Play Tech Center, with strategic investment from Heller Industries and CoreLabs Capital announced in September 2025.
Diatope
Diatope is a spin-off from Ulm University that manufactures engineered diamond materials with NV (nitrogen-vacancy) centers for quantum sensing and quantum computing applications. The company operates the world's first production line for quantum diamond 'Made in Germany,' centralizing all necessary processing steps including CVD diamond growth, ion implantation, and high-temperature annealing. Diatope participates in BMBF-funded DIAQUAM project and multiple EU-funded quantum initiatives including PROMISE and AMADEUS.
Dimira Technologies
Dimira Technologies Pvt. Ltd. is a Mumbai-based quantum hardware company incubated at IIT Mumbai (IIT Bombay), recognized and selected for facilitating technological development under India's National Quantum Mission. The company focuses on indigenous development of cryogenic radio frequency cables for quantum computing and other applications, critical components for maintaining the low-temperature environments required for quantum hardware operation. Dimira was selected as one of eight startups out of 130 applications announced by Union Minister Dr. Jitendra Singh. The National Quantum Mission, approved by the Union Cabinet on April 19, 2023, allocated Rs.6003.65 crore from 2023-24 to projected 2030-31 to seed, nurture, and scale up scientific and industrial R&D. Dimira Technologies contributes to India's goal of achieving technological self-reliance in quantum computing infrastructure.
DiTom Microwave
DiTom Microwave specializes in manufacturing RF isolators and circulators for high-reliability applications including quantum computing. The company produces cryogenic RF components designed to operate at temperatures below 77K down to the millikelvin range required for superconducting quantum computers. DiTom's cryogenic isolators and circulators serve the quantum computing industry's need for reliable microwave components that maintain performance at ultra-low temperatures. Their products are essential for qubit control and readout in superconducting quantum processors. The company serves aerospace, defense, space-qualified, and cryogenic hardware markets with proven reliability in extreme environments.
Dobslit
Dobslit is a Brazilian quantum technology company founded in 2018, developing second-generation quantum technologies with focus on quantum sensing applications and quantum device development for scientific and industrial applications. The company specializes in quantum sensors and measurement systems based on atomic and optical physics principles, targeting applications in precision metrology, geophysical surveying, and industrial process monitoring. Dobslit contributes to Brazil's emerging quantum technology ecosystem by advancing practical quantum sensing applications and developing quantum expertise in Latin America, collaborating with Brazilian research institutions and universities to commercialize quantum technologies for domestic and international markets. The company represents the growing quantum technology sector in Brazil, working to establish quantum sensing capabilities and quantum device manufacturing in Latin America while building partnerships with international quantum technology companies and research organizations.
Dotz Nano
Dotz Nano is an Israeli nanotechnology company established to commercialize graphene quantum dot production processes developed at Rice University's Tour Labs. Founded by Prof. James Tour and Dr. Michael Stein, the company initially focused on graphene quantum dots (GQDs) but around 2018 pivoted to using carbon quantum dots for tracking and anti-counterfeiting solutions. Dotz Nano now offers a range of nano and micro materials, including graphene quantum dots and carbon dots for use in tracing, anti-counterfeiting, and product-liability applications. The company went public on the Australian Stock Exchange (ASX: DTZ) in November 2016, raising capital to commercialize its quantum dot technologies. Headquartered in Petah Tikva, Israel, Dotz Nano represents the commercial application of quantum dot science to solve real-world supply chain security and product authentication challenges, bridging quantum materials research with practical industrial applications.
Duality Quantum Photonics
Duality Quantum Photonics is a UK-based quantum technology company founded in 2020 that develops integrated quantum photonics circuits and components for quantum computing, quantum communications, and quantum sensing applications, specializing in silicon photonic chips that enable scalable photonic quantum systems with high integration density, providing essential building blocks for photonic quantum technologies including quantum light sources, quantum interferometers, and photonic quantum processors for researchers and companies developing quantum applications.
Edwards Vacuum
Edwards Vacuum is a British engineering company founded in 1919 by physicist Frederick David Edwards and his father William, specializing in vacuum and cryogenic technologies for semiconductor, research, and industrial applications. Headquartered in Burgess Hill, UK, and part of the Atlas Copco Group since 2014, Edwards acquired Brooks Automation's CTI-Cryogenics and Polycold cryopump operations in 2018 for $675 million, significantly expanding its cryogenic capabilities. Edwards' cryogenic products serve the quantum computing industry, with photonics-based and ion-trap quantum computers requiring bespoke cryogenic solutions. In February 2022, Edwards joined a consortium led by Universal Quantum, awarded a £7.5M grant from Innovate UK to develop an error-corrected quantum computer, with Edwards responsible for designing, assembling, and commissioning the extreme high vacuum system for the quantum error correction quantum computer (QEC QC). Edwards' combination of vacuum technology expertise and cryogenic systems positions it as a critical supplier to the global quantum computing hardware ecosystem.
Element Six
Element Six is a UK synthetic diamond technology company established in 1946 that has become the world's leading supplier of synthetic diamond materials for quantum technologies, producing ultra-pure single crystal diamonds with nitrogen-vacancy (NV) centers for quantum sensing, quantum computing, and quantum communication applications, providing specialized diamond substrates, quantum-grade diamond materials, and custom diamond solutions that enable quantum sensors, quantum memory devices, and quantum photonics components used by research institutions and quantum technology companies worldwide for applications requiring the unique properties of diamond's quantum defects and exceptional material characteristics. 2025 Developments: In September 2025, Element Six partnered with IonQ to produce quantum-grade synthetic diamond films.
Elmos Semiconductor
Elmos Semiconductor SE is a German semiconductor manufacturer headquartered in Dortmund, founded in 1984, primarily serving the automotive industry. In January 2025, Elmos partnered with ID Quantique to develop the world's smallest monolithically integrated Quantum Random Number Generator (QRNG) solution measuring just 2mm x 2mm. The innovative QRNG uses in-chip photoemission quantum principles to generate the highest quality randomness with ultra-low power consumption and extremely short start-up time. This partnership brings 40 years of semiconductor manufacturing expertise to quantum security, targeting mass market applications including mobile phones and IoT devices. The QRNG delivers exceptional cost-performance ratio for cybersecurity and encryption applications. Elmos serves automotive OEMs, tier-1 suppliers, and consumer electronics manufacturers requiring quantum-grade random number generation for secure cryptographic key generation and data protection against quantum computing threats.
ELUXI
ELUXI Ltd is a UK-based specialist photonics distributor supplying leading-edge lasers, optics, fiber optics, amplifiers, light sources, and detectors as both standard products and custom solutions for the UK and Ireland markets. Operating from purpose-built facilities at the Advanced Technology Innovation Centre within Loughborough University Science and Enterprise Parks in Loughborough, England, ELUXI serves the quantum photonics sector by providing access to cutting-edge photonics components essential for quantum research and development. The company was founded by executives with successful careers in Pan-European distribution companies at senior levels and higher degrees in photonics disciplines. ELUXI distributes products from leading global photonics manufacturers, enabling UK and Irish quantum researchers and companies to access specialized components for quantum computing, quantum sensing, and quantum communications applications. By bridging manufacturers and end-users, ELUXI plays a critical role in the UK quantum photonics supply chain, supporting the development of quantum technologies through efficient access to specialized photonics components and expert technical support.
Enquantum
Enquantum is a Holon, Israel-based quantum security company founded in 2020, specializing in computer and network security solutions protecting data from quantum computing threats. The company delivers energy-efficient post-quantum cryptography engines for scalable and sustainable futures using hash-based cryptography with hardware-acceleration achieving terabit scale at ultra-low latency. Enquantum employs 1-10 people and is invested in and approved by the Israel Innovation Authority. The company's technology leverages FPGA-accelerated architecture minimizing carbon footprint with scalable architecture meeting demands of evolving environments. Enquantum provides quantum-resistant encryption solutions for organizations requiring protection against quantum computer attacks on current cryptographic systems. The company serves enterprises, government agencies, and telecommunications providers requiring quantum-safe security infrastructure preparing for post-quantum cryptography transition mandated by regulatory agencies globally.
Entoptica
Entoptica Ltd is a pioneering MedTech startup from Hong Kong introducing the world's first application of quantum technology in vision sciences. The company developed Structured Light Observation Perception and Evaluation (SLOPE) technology for advanced eye diagnostics and vision assessment using quantum-enhanced imaging techniques. Exhibited at CES 2025.
Envietta
Envietta is an American quantum security company founded in 2019, developing hardware-implemented post-quantum cryptography solutions as IP Core for semiconductor integration. The company is one of only three companies worldwide offering post-quantum cryptography as IP Core: PQ Shield (UK), Envietta (USA), and ResQuant (Poland). Envietta develops cryptographic processor designs implemented on FPGA and ASIC microchips for direct integration into electronic devices, providing quantum-resistant encryption resistant to quantum computer attacks. The company implements NIST-approved post-quantum cryptography algorithms including ML-KEM (Kyber), ML-DSA (Dilithium), and SLH-DSA (SPHINCS+) as hardware accelerators and IP cores for semiconductor manufacturers. Envietta serves semiconductor companies, IoT device manufacturers, aerospace contractors, automotive suppliers, and telecommunications equipment vendors requiring hardware-based post-quantum cryptography implementations for chip-level security. The company focuses on high-performance PQC hardware implementations enabling quantum-safe security in resource-constrained embedded systems and high-throughput communications equipment.
EPFL
École Polytechnique Fédérale de Lausanne (EPFL) is a research institute and university founded in 1969 (origins to 1853), located in Lausanne, Switzerland. EPFL conducts leading quantum research through Center for Quantum Science and Engineering advancing quantum computing quantum photonics quantum communications and quantum technologies. The university excels in photonic quantum computing quantum optics and quantum information processing. EPFL researchers contribute to quantum algorithms quantum hardware quantum networks and quantum applications. The university has produced quantum technology spinouts and maintains strong quantum industry partnerships. EPFL serves quantum research community through quantum research quantum education and technology transfer advancing quantum photonics and quantum information science supporting Swiss quantum technology leadership.
Ephos
In September 2024, Ephos, a leading producer of glass-based photonic chips, raised $8.5 million in seed funding and opened the world's first facility dedicated to designing and producing glass-based photonic chips in Milan. Ephos' proprietary technology designs and builds glass-based photonic chips offering best-in-class performance for signal loss, a critical advantage in building quantum computers. The company's novel 3D design and manufacturing capabilities unlock unique scaling opportunities and computational modalities that enable better system performance. The funding round was led by Starlight Ventures, with participation from notable investors including Joe Zadeh (former Vice President at Airbnb), Diego Piacentini (former Senior Vice President at Amazon), and Simone Severini (General Manager of Quantum Technologies at Amazon Web Services). Glass-based photonic chips have far-reaching implications beyond quantum computing, with applications in data centers where they can reduce energy footprints.
Epoch Wires
Epoch Wires Ltd. is an Indian manufacturer of specialized wires and superconducting materials serving advanced technology markets including quantum computing infrastructure. The company produces superconducting wires, cables, and components used in cryogenic applications, quantum computing systems, and scientific research requiring ultra-low temperature electrical conductivity. Epoch Wires manufactures materials supporting quantum computing infrastructure including superconducting interconnects, cryogenic wiring, and specialized conductors for quantum processors operating at cryogenic temperatures. As an Indian superconductor manufacturer, Epoch Wires supports India's National Quantum Mission and emerging quantum technology ecosystem. The company serves quantum computing manufacturers, research institutions, cryogenic equipment providers, and quantum technology companies in India and globally, providing specialized wire products for quantum computing infrastructure, quantum research laboratories, and cryogenic quantum systems.
ERZIA
ERZIA is an OEM manufacturer of high-performance RF and microwave modules, subsystems, and integrated assemblies serving quantum computing applications. Their high-power amplifiers (HPA) drive microwave control pulses for qubit manipulation (4-8 GHz, 10-50W output), while their low-noise amplifiers (LNA) capture weak readout signals with sub-1 dB noise figures across L-Band through W-Band frequencies critical for quantum system architectures. ERZIA provides essential RF infrastructure for quantum control systems worldwide.
Eurofiber
Eurofiber is a European telecommunications and fiber optic network provider founded in 2000, headquartered in Amsterdam, Netherlands, deploying quantum key distribution technology across its extensive fiber network. In February 2025, Eurofiber and Q*Bird were awarded 1 million euros at Mobile World Congress Barcelona for their Quantum Key Distribution project by Dutch government. In October 2024, Eurofiber collaborated with Q*Bird to integrate QKD technology into Eurofiber's extensive fiber optic network connecting quantum communication networks in Amsterdam and Rotterdam. In April 2024, QuTech and Eurofiber ran quantum cryptography on existing fiber in an open testbed, demonstrating practical QKD deployment on operational telecommunications infrastructure. The project strengthens collaboration between network provider Eurofiber and quantum security company Q*Bird advancing quantum-safe communications infrastructure in Netherlands. Eurofiber serves telecommunications operators, enterprises, data centers, government agencies, and financial institutions requiring quantum-safe network connectivity and secure communications infrastructure preparing for quantum computing threats to current encryption standards.
Exail
Exail Technologies is a French industrial company formed in 2022 from the merger of ECA Group and iXBlue, specializing in cutting-edge technologies in autonomous robotics, navigation, aerospace, and photonics. Led by CEO Dominique Giannoni, Exail's quantum sensing division leverages decades of research from former students and colleagues of 2022 physics Nobel Prize winner Alain Aspect. In 2021, Exail acquired Muquans, the world's first company to commercialize industry-grade quantum sensors founded by Aspect's former students. Exail develops quantum gravimeters, quantum accelerometers, and quantum inertial navigation systems exploiting quantum advantages for precision measurement. The company is involved in the CARIOQA-PMP European project developing a space-grade quantum gravimeter for Earth and climate monitoring. In 2022, Exail demonstrated a 3-axis hybrid quantum accelerometer, advancing toward drift-free inertial navigation systems. Headquartered in Paris, Exail represents France's strategic leadership in quantum sensing for defense, aerospace, navigation, and scientific applications.
EYL
EYL is a South Korean quantum security specialist that commercialized the industry's first radioisotope-based quantum random number generator (QRNG) chip, applying natural radioisotope decay process to cryptographic information security. Founded in 2014, EYL's QUANTUM™ QRNG product family addresses 4th Industrial Revolution convergence security demands and IoT device security. The company's products include QUANTUM Entropy Chip (QEC) and QUANTUM™ QRNG in flipchip, USB, and PCI card formats supporting RNG speeds up to 4 Gbps. EYL won Diamond Award at MassChallenge Boston 2016, the world's biggest startup competition. In 2025, South Korea recognized EYL's QRNG as national strategic technology within quantum cryptography and quantum communication category, prioritizing it for state support and integration into critical infrastructure. EYL's QRNG technology serves finance, telecommunications, defense, and public sectors, with rapid global expansion to Indonesia, Europe, and Middle East markets.
Faraday Factory Japan
Faraday Factory Japan is a Japanese manufacturer developing cost-effective mass production methods for High Temperature Superconducting (HTS) tapes with production capacities approaching 100 thousand kilometers per year. The company produces second-generation HTS wire using advanced manufacturing processes, reducing costs and increasing availability of superconducting materials for quantum computing applications. Faraday Factory Japan manufactures superconducting tape essential for quantum computing infrastructure including superconducting qubits, quantum interconnects, and cryogenic quantum systems. The company's mass production capabilities enable large-scale deployment of superconducting materials for quantum processors and quantum technology applications. Faraday Factory Japan serves quantum computing manufacturers, research institutions, cryogenic equipment providers, and quantum technology companies requiring high-volume, cost-effective superconducting wire for quantum computing infrastructure, quantum communication systems, and quantum sensing applications.
Fermioniq
Fermioniq is a quantum software company based in Amsterdam developing tools and algorithms for quantum chemistry simulations and materials science applications. The company focuses on creating practical quantum software that can run on current and near-term quantum hardware to solve real-world problems in drug discovery, materials design, and chemical process optimization. Fermioniq bridges quantum computing capabilities with industrial R&D needs.
FieldLine
FieldLine is a CU Boulder spin-out developing optically-pumped magnetometers for medical imaging and quantum sensing applications. The company manufactures OPM sensors for magnetoencephalography. FieldLine's quantum magnetometers enable non-invasive brain imaging and other biomedical applications where ultra-sensitive magnetic field detection provides diagnostic capabilities, commercializing quantum sensing technology for healthcare markets.
Filtronic
Filtronic is a UK-based RF, microwave, and mmWave solutions provider specializing in customized filters, diplexers, and low-noise amplifiers for quantum computing systems. Their cryogenic-compatible RF filters operate at temperatures near absolute zero to minimize microwave noise in superconducting qubit systems, with switched filter banks enabling dynamic frequency adjustment for enhanced performance in varying quantum computing environments. Filtronic designs bespoke RF solutions for quantum computing companies supporting both control systems outside and circuits inside dilution refrigerators.
FormFactor
FormFactor provides quantum test and measurement solutions including cryogenic probing systems, quantum device test interfaces, and specialized measurement equipment that enable the characterization and testing of quantum devices at ultra-low temperatures required for quantum computing and quantum electronics applications.
Fraunhofer IAF Quantum Sensing
Fraunhofer IAF Quantum Sensing develops quantum sensors based on diamond NV centers detecting magnetic and electric fields with nanometer resolution. The Freiburg institute commercializes quantum sensing technology. Fraunhofer IAF's diamond quantum sensors enable applications in materials science, semiconductor inspection, and biomedical imaging where ultra-sensitive nanoscale field measurements provide critical capabilities.
Fraunhofer Society
Fraunhofer Society (Fraunhofer-Gesellschaft) is a German research organization founded in 1949, headquartered in Munich, Germany, focused on applied research. Multiple Fraunhofer Institutes conduct quantum research including quantum computing quantum communications quantum sensors and quantum technologies development. The society focuses on practical quantum applications and quantum technology transfer to industry. Fraunhofer researchers advance quantum technology commercialization quantum system development and quantum applications for manufacturing security and communications. The institutes serve German industry and quantum technology ecosystem through applied quantum research technology development and industrial quantum implementations supporting German quantum strategy and quantum technology leadership.
Frequency Electronics
Frequency Electronics designs precision timing and frequency control products including atomic clocks (hydrogen, cesium, rubidium standards) and RF modules up to 67 GHz for quantum sensing and quantum computing applications. The company has over 40 years of quantum sensing experience, developing nitrogen-vacancy diamond magnetometers for the Defense Innovation Unit and Rydberg atom-based RF sensors in partnership with NIST and Freedom Photonics. Frequency Electronics provides critical timing infrastructure for government, defense, aerospace, and quantum technology applications.
FrostByte
FrostByte is a 2025 spin-out from QuTech at TU Delft developing cryogenic electronics that address the scaling bottlenecks facing quantum technologies. The company creates integrated circuits and control electronics that operate at ultra-low temperatures directly alongside quantum processors, reducing wiring complexity and improving signal fidelity. FrostByte's innovations enable the scaling of quantum computers from hundreds to thousands of qubits.
Fuji Electric
Fuji Electric Co. Ltd. is a major Japanese electrical equipment manufacturer founded in 1923, producing superconducting materials and components serving quantum computing and power applications. The company manufactures superconducting wires, cables, and systems using both Low Temperature Superconductor (LTS) and High Temperature Superconductor (HTS) technologies. Fuji Electric provides superconducting solutions for quantum computing infrastructure including cryogenic systems, superconducting magnets, and power conditioning equipment essential for quantum processors. The company leverages extensive experience in power electronics and cryogenic systems to support quantum computing manufacturers requiring reliable superconducting components. Fuji Electric serves quantum technology companies, research institutions, and cryogenic equipment manufacturers in Japan and globally, providing superconducting materials for quantum processors, quantum communication systems, and quantum computing infrastructure requiring advanced superconducting technologies.
Fujikura
Fujikura Ltd. is a major Japanese manufacturer founded in 1885, producing superconducting wires, cables, and materials for quantum computing and telecommunications applications. The company manufactures High Temperature Superconducting (HTS) wire and cable products using advanced production technologies, serving quantum computing infrastructure requirements. Fujikura provides superconducting solutions for quantum processors, superconducting qubits, quantum interconnects, and cryogenic quantum systems requiring ultra-low resistance electrical conductivity at cryogenic temperatures. The company leverages over 135 years of cable and wire manufacturing expertise to produce high-quality superconducting materials for quantum technology applications. Fujikura serves quantum computing manufacturers, research institutions, telecommunications companies, and cryogenic equipment providers requiring reliable superconducting wire and cable products for quantum computing infrastructure, quantum communication networks, and quantum sensing systems.
Fujitsu
April 2025: Developed world-leading 256-qubit superconducting quantum computer with RIKEN at RQC-FUJITSU Collaboration Center. Planning 1,000-qubit computer for 2026. March 2025: Achieved >99.9% fidelity for single and two-qubit gates with QuTech using diamond spin method (published Physical Review Applied). Launched open-source quantum computer operations software. 2025: Formed joint venture with NEC and Hitachi for cold-atom quantum computer using rubidium atoms. Prototype by 2026, commercial device by 2030. Part of Q-STAR consortium (112 members including Toyota, Toshiba). Japan designated 2025 'first year of quantum industrialization' with ¥1.05 trillion ($7.4B) funding package. November 2025: Joined NTT's OptQC initiative for room-temperature optical quantum computing. Also develops Digital Annealer quantum-inspired optimization technology for enterprise customers. Contributing to Japan's national quantum strategy through government-industry partnerships.
g2-Zero
g2-Zero is a Madrid-based quantum technology startup founded in 2020, specializing in the development of plug-and-play single photon sources and semiconductor-based photonic quantum components. A spin-off of the Institute of Micro and Nanotechnology of the Spanish National Research Council (IMN-CSIC) and the Technical University of Madrid (UPM), g2-Zero develops single photon sources that are purely electrical, vibration-resistant, and alignment-free. The company was selected for NATO's Defence Innovation Accelerator for the North Atlantic (DIANA) program and has received investment from FI Nvest, Hamamatsu Corporate Venture Capital, and Deep Tech Lab - Quantum. g2-Zero's technology addresses critical needs for the emerging market of quantum technologies, including quantum communications, quantum computing, and quantum sensing applications.
GEM Systems
GEM Advanced Magnetometers is a world leader in high-precision quantum magnetometer technology for earth science, geophysics, mineral and oil exploration, environmental applications, UXO detection, and earthquake research. Founded in 1980 and managed by Dr. Ivan Hrvoic, GEM leads in developing advanced quantum magnetometer technologies including Overhauser, optically pumped Potassium (K-Mag), and Proton Precession magnetometers. Based in Markham, Ontario, the company pioneered the potassium vapor magnetometer and continues innovation in quantum sensing. GEM's magnetometers and gradiometers serve global geophysical survey, resource exploration, and scientific research applications requiring ultra-sensitive magnetic field detection.
General Electric
General Electric Company is an American multinational conglomerate founded April 15 1892 headquartered in Boston Massachusetts. GE explores quantum computing applications for materials science aviation energy systems and healthcare. The company investigates quantum simulation for materials discovery turbine optimization energy grid management and medical imaging applications. GE collaborates with quantum computing providers and research institutions developing quantum applications for industrial and healthcare markets. GE serves aviation energy healthcare and industrial manufacturing sectors requiring quantum-enhanced computational capabilities for materials design system optimization and predictive maintenance. The company invests in quantum technology research advancing practical quantum applications for aerospace energy and healthcare industries supporting quantum technology commercialization.
GenMat
Quantum Generative Materials (GenMat) accelerates materials discovery by integrating quantum computing and machine learning to simulate atomic structures for energy, electronics, and manufacturing sectors. The company uses quantum-enhanced generative AI to predict and design new materials with specific properties. GenMat's platform combines quantum algorithms with classical machine learning to explore vast chemical spaces and identify promising materials candidates more efficiently than traditional computational methods. Target applications include battery materials, semiconductors, catalysts, and advanced manufacturing materials. The company's approach aims to reduce materials development time from years to months by leveraging quantum computing's ability to accurately simulate quantum mechanical properties of materials at the atomic level.
GlobalFoundries
GlobalFoundries leverages its advanced semiconductor manufacturing capabilities to provide quantum chip fabrication services for quantum computing companies, offering specialized processes and clean room facilities for producing superconducting qubits and quantum devices using established semiconductor manufacturing infrastructure.
Good Chemistry
Good Chemistry Company is an American quantum software company founded in 2020 developing quantum computing applications for computational chemistry and materials science. The company provides quantum algorithms and software platforms for molecular simulation, drug discovery, catalyst design, and materials discovery. Good Chemistry focuses on near-term quantum advantage for chemistry applications using hybrid quantum-classical algorithms. The company collaborates with pharmaceutical companies, chemical manufacturers, and materials science researchers developing practical quantum applications for industrial chemistry. Good Chemistry serves pharmaceutical industry, chemical companies, materials science organizations, and research institutions requiring quantum-enhanced computational chemistry capabilities. The company advances quantum computing applications in drug discovery and materials design demonstrating practical quantum advantage for chemistry and materials science advancing quantum technology commercialization in chemical and pharmaceutical industries.
Groove Quantum
Groove Quantum is a QuTech spinout launched in 2024 tackling the qubit scalability challenge with its unique germanium-based quantum technology. The company develops germanium quantum dots as a platform for quantum computing that offers advantages in terms of manufacturability, scalability, and integration with existing semiconductor processes. Groove Quantum's approach enables quantum processors to be fabricated using standard CMOS-compatible processes.
Hamamatsu Photonics
Hamamatsu Photonics manufactures photonic devices and optical sensors for quantum technologies, including photomultiplier tubes (PMTs), single-photon avalanche diodes (SPADs), and qCMOS cameras for trapped ion and neutral atom quantum computing. Recent products include the ORCA-Quest 2 qCMOS camera with faster readout and enhanced UV sensitivity, plus their first commercial optically pumped magnetometer (OPM) for ultra-low magnetic field detection in quantum sensing. Hamamatsu acquired NKT Photonics in 2022 to strengthen its quantum photonics capabilities.
Harvard University
Harvard University is a private Ivy League research university founded 1636 in Cambridge Massachusetts. Central to Harvard quantum initiatives is Harvard Quantum Initiative uniting researchers from various disciplines to advance quantum science and engineering. In September 2025, a team of Harvard physicists led by Mikhail Lukin (Joshua and Beth Friedman University Professor) achieved a historic breakthrough by building the first quantum computer that can operate continuously for over 2 hours without restarting, published in Nature. The system operates an array of more than 3,000 qubits (neutral atoms) and theoretically could continue indefinitely, representing a massive improvement over existing quantum computers that typically run for milliseconds or at most 13 seconds. The breakthrough was achieved by replenishing qubits in real time, injecting new atoms at a rate of 300,000 per second using an optical lattice conveyor belt system to counteract atom loss and maintain quantum information, with over 50 million atoms cycled through the system during the two-hour demonstration. This transformative achievement demonstrates that quantum computers capable of running forever in practice are now just three years away (down from five+ years previously), marking a critical milestone toward practical, continuously operating quantum computing systems. Harvard Quantum Initiative is one of strongest in country heavily focused on quantum networking quantum chemistry and quantum materials research. Harvard conducts quantum research spanning quantum processors quantum algorithms quantum communication networks quantum simulation and quantum sensing. The university maintains partnerships with leading quantum companies including QuEra Computing and government agencies. Harvard serves quantum research community through fundamental quantum research quantum education programs and technology transfer advancing quantum information science and quantum technology commercialization supporting USA quantum leadership.
HEQA Security
HEQA Security (formerly QuantLR) is an Israeli quantum security company founded in 2018, committed to safeguarding data communication against cyber threats posed by quantum computers. The company focuses on building carrier-grade quantum key distribution (QKD) offerings with products used by world-leading telecom operators, defense organizations, global cloud providers, and financial institutions. HEQA Security ensures protection of data communication against potential threats through groundbreaking security solutions rooted in principles of quantum physics. Leveraging a patented design, HEQA Security's products stand out as the market's most cost-effective and scalable enterprise-grade Quantum Key Distribution solution. The company brings quantum leap for secure communication to telecommunications and enterprise markets. HEQA Security serves telecommunications operators, government agencies, defense contractors, financial institutions, and cloud service providers requiring carrier-grade QKD infrastructure for ultra-secure communications protecting against both classical eavesdropping and quantum computing threats to encryption.
High Precision Devices
High Precision Devices (HPD) is a US cryogenic instrumentation company founded in 1993 that develops specialized ultra-low temperature measurement and control instruments for quantum computing and quantum research applications, providing precision thermometry, cryogenic switches, temperature controllers, and measurement electronics that enable accurate monitoring and control of quantum systems operating at millikelvin temperatures, serving quantum computing companies, research institutions, and national laboratories with high-precision instrumentation essential for quantum device characterization, quantum state control, and cryogenic system optimization in dilution refrigerators and other ultra-low temperature environments.
High Temperature Superconductors
High Temperature Superconductors Inc. is a USA-based manufacturer specializing in high-temperature superconducting materials and components for quantum computing and advanced technology applications. The company produces superconducting wires, tapes, and materials used in quantum computing systems, superconducting electronics, and cryogenic applications. High Temperature Superconductors manufactures HTS materials operating at higher temperatures than conventional superconductors, reducing cooling requirements for quantum computing infrastructure. The company provides custom superconducting solutions for quantum processors, superconducting qubits, and quantum computing systems requiring reliable superconducting performance. High Temperature Superconductors serves quantum technology companies, research laboratories, cryogenic equipment manufacturers, and quantum computing startups requiring high-quality superconducting materials for quantum processors, quantum communication systems, and quantum sensing applications operating at cryogenic temperatures.
Hon Hai Research Institute Semiconductor Research Center
Hon Hai Research Institute Semiconductor Research Center develops semiconductor chips integrating micro-ion traps and photonic circuits for quantum applications. The center is part of Foxconn's quantum ecosystem combining semiconductor fabrication with quantum technology. Hon Hai's semiconductor quantum research aims to enable mass production of quantum computing components using semiconductor manufacturing processes, potentially reducing quantum hardware costs and accelerating quantum computing scaling.
Honeywell Quantum Communications
Honeywell is a multinational technology and manufacturing company founded in 1906, headquartered in Charlotte, North Carolina, with Quantum Communications division developing quantum-secured satellite communications systems. Honeywell leads the QKDSat consortium, a public-private partnership announced in 2024 aiming to develop ultra-secure telecommunications satellites using quantum key distribution technology. In September 2025, Honeywell signed MOU with Redwire Corporation to combine Redwire's quantum platform technology with Honeywell's quantum optical payload, creating fully functional payload and platform by mid-2026. The consortium includes Redwire Space of Belgium; Craft Prospect and British Telecom of the United Kingdom; QTLabs of Austria; Honeywell in Canada; and key players in Germany, Czech Republic, and Switzerland. Honeywell partnered with European Space Agency for quantum data protection from space. The company serves government agencies, defense contractors, telecommunications operators, and critical infrastructure sectors requiring quantum-secured satellite communications protecting sensitive information transmission against cyber threats.
HQS Quantum Simulations
HQS Quantum Simulations is a leading quantum software company focused on developing quantum algorithms and applications for materials science, chemistry, and pharmaceutical research. Founded in 2017 by Michael Marthaler, Iris Schwenk, and Konstantin Willeke from the Karlsruhe Institute of Technology, the company specializes in quantum simulations of molecular and material systems that are computationally challenging for classical computers. HQS develops quantum software solutions for drug discovery, catalyst design, battery materials, and chemical process optimization, working with pharmaceutical companies, chemical manufacturers, and materials research organizations. Their quantum algorithms enable the simulation of complex molecular interactions, electronic structures, and chemical reaction pathways with unprecedented accuracy and efficiency. The company's platform integrates with existing quantum hardware and classical simulation workflows, providing a bridge between current computational chemistry methods and future quantum advantage. HQS has established partnerships with quantum hardware providers and major industrial customers, positioning them at the intersection of quantum computing and materials innovation.
Hub Security
Hub Security Ltd. is an Israeli cyber security company established in 2017 by Eyal Moshe and Andrey Iaremenko with offices in Tel Aviv and New York, employing 25 employees and offering cyber security solutions for AI, data, fintech, and infrastructure sectors. Hub Security announced the first-ever miniature Hardware Security Module (HSM) with integrated Quantum Random Number Generator (QRNG) component, enabling endpoint data privacy and access security for IoT and distributed networks in the 5G era. The company's cyber platform is designed and manufactured in Israel, delivering military-grade protection assuming systems are already hacked, providing higher security standards for sensitive information. Hub Security enables organizations to run artificial intelligence applications at highest security levels required in health service, critical infrastructure, and finance industries. The company's QRNG integration into HSM protects IoT devices and distributed networks, serving cybersecurity markets requiring quantum-enhanced encryption key security and data protection.
Huber+Suhner
Huber+Suhner AG is a Swiss manufacturer of components and systems for electrical and optical connectivity founded in 1969, headquartered in Herisau, Switzerland. The company supplies photonic components including fiber optic cables, connectors, and optical assemblies used in quantum communication systems, quantum key distribution networks, and quantum computing infrastructure. Huber+Suhner provides high-precision optical connectivity solutions for quantum laboratories, quantum data centers, and quantum networking deployments. The company serves telecommunications, aerospace, industrial, and quantum technology sectors requiring reliable photonic infrastructure components. Huber+Suhner contributes to quantum technology supply chain providing essential photonic components for quantum systems and quantum communication networks supporting quantum technology commercialization and quantum infrastructure development worldwide.
HÜBNER Photonics
HÜBNER Photonics is a leading manufacturer of lasers and THz systems for quantum technology applications. Headquartered in Kassel, Germany, with manufacturing in Kassel and Stockholm, Sweden, plus offices in USA and UK, the company offers single and multi-line lasers, the tunable C-WAVE laser, and laser combiners for quantum research. HÜBNER expanded its research and production facilities in Kassel specifically to meet growing demand for tunable single-frequency laser sources in quantum technology research and augmented reality holography. Their products serve spectroscopy, bioinstrumentation, metrology, nanophotonics, and quantum technology research. HÜBNER has become a preferred supplier to major quantum research groups and public institutions worldwide.
Hyper Tech Research
Hyper Tech Research Inc. is a leading manufacturer and developer of advanced superconducting materials based in Columbus, Ohio, founded in 1999, specializing in superconducting wire technology for quantum computing and energy applications. The company manufactures high-performance superconducting wires including Niobium-Titanium (NbTi), Niobium-Tin (Nb3Sn), and Magnesium Diboride (MgB2) superconductors used in quantum computing systems and cryogenic applications. Hyper Tech Research provides superconducting materials for quantum processors, superconducting qubits, quantum interconnects, and cryogenic quantum computing infrastructure requiring ultra-low resistance electrical conductivity. The company conducts research and development on next-generation superconducting materials with improved performance characteristics for quantum computing applications. Hyper Tech Research serves quantum computing manufacturers, national laboratories, universities, and research institutions requiring specialized superconducting materials for quantum technology development.
HYPRES
HYPRES specializes in superconducting electronics and rapid single flux quantum (RSFQ) technology for quantum computing applications, providing advanced cryogenic electronics, superconducting circuits, and quantum control systems that enable precise manipulation and readout of quantum states in superconducting quantum processors with over four decades of expertise in superconducting technologies.
Hyqubit
Hyqubit is a Beijing-based quantum computing company focused on ion trap technology for quantum processors. The company is developing trapped ion quantum computers as part of China's diversified quantum computing hardware strategy. Hyqubit represents China's efforts to develop competitive ion trap quantum computing capabilities alongside the country's superconducting and photonic quantum computing programs.
IBM Quantum
In 2024-2025, IBM Quantum unveiled its 156-qubit Heron processor featuring a new architectural approach emphasizing modularity and error mitigation, achieving 16 times better performance and a 25-fold increase in speed over 2022 systems. At the inaugural IBM Quantum Developer Conference in 2024, IBM achieved accurate computations on circuits with 100 qubits and gate depths of 100 and 5,000 two-qubit gate operations in under a day's runtime. IBM introduced multi-chip coupling innovations including 'l-couplers' for linking distant chips via cables and 'm-couplers' for tightly connecting adjacent chips, demonstrated with IBM Quantum Flamingo connecting two Heron R2 chips, with the production-ready Flamingo system expected in 2025. IBM's roadmap extends to 2026 with the Kookaburra system demonstrating the first integration of logical qubit processing with quantum memory, and by 2028, the Starling system will operate 200 logical qubits requiring approximately 10,000 physical qubits using IBM's efficient LDPC codes. November 2025: IBM announced the 120-qubit Nighthawk processor with 218 next-generation tunable couplers, enabling 30% more circuit complexity while maintaining low error rates. IBM achieved 10x speedup in quantum error correction decoding over leading approaches, completed one year ahead of schedule. IBM-Cisco partnership announced (November 20, 2025) to build networked distributed quantum computing infrastructure with first proof-of-concept targeted by end of 2030. IBM claims their LDPC codes approach requires 90% fewer qubits than Google's surface code method. IBM Quantum Loon experimental processor demonstrated all key fault-tolerant computing components for the first time.
Icarus Quantum
Icarus Quantum is a JILA/NIST spin-out commercializing quantum dot technology with Venture Partners at CU Boulder (Poolad Imany). The Boulder company develops quantum photonic components. Icarus Quantum translates fundamental quantum dot research into commercial photonic quantum devices for quantum computing, quantum communications, and quantum sensing applications.
ID Quantique
ID Quantique (IDQ) is a Swiss quantum cybersecurity pioneer founded in 2001 as a University of Geneva spinoff that became the world leader in quantum key distribution (QKD) and quantum-safe security solutions, achieving multiple world firsts including the first commercial QKD system deployment in 2004 and breaking distance records with 307km QKD demonstrations, offering comprehensive quantum-safe products including the Cerberis XG and Clavis XG QKD systems serving governments, enterprises, and research institutions across 60+ countries. December 2025: Deployed Slovakia's first national quantum communication network as part of the EU-wide EuroQCI initiative. The skQCI project, developed with Institute of Physics Slovak Academy of Sciences, securely interconnects Slovakia's Presidential Palace, National Security Authority, and Quantum Pavilion of the Slovak Academy of Sciences in Bratislava. November 2025: Expanded QKD network deployments across European financial institutions and government agencies. 2025 Developments: Acquired by IonQ for approximately $250 million, becoming IonQ's subsidiary for quantum networking. Continued expansion of QKD network deployments and quantum-safe security solutions.
IDEMIA
IDEMIA is a multinational technology company specializing in biometric identification, digital security, and identity-related security services. With a global team of 800+ R&D experts, IDEMIA is a world-leading authority in post-quantum cryptography and introduced the first quantum-resistant 5G SIM in 2022. In July 2025, the company launched IDEMIA Sphere Cryptographic Library with 68 classical and post-quantum algorithms. IDEMIA leads the Hyperform consortium developing quantum-safe components for banks, governments, and software companies.
Illinois Quantum and Microelectronics Park
Illinois Quantum and Microelectronics Park represents the largest concentration of quantum activity in North America, anchored by PsiQuantum with tenants including IBM, Diraq, and Infleqtion, projecting over $20 billion economic impact. The quantum technology park provides shared infrastructure. The park establishes Illinois as a global quantum manufacturing hub, bringing together quantum hardware companies, research institutions, and supporting industries to create a complete quantum technology ecosystem.
Imec
Imec is a world-leading research and innovation hub in nanoelectronics and digital technologies based in Leuven, Belgium, founded in 1984, with extensive quantum computing semiconductor fabrication programs. Imec collaborates with quantum hardware companies including Diraq, fabricating silicon spin qubits on 300mm wafers using standard CMOS materials. In June 2024, Diraq announced 99.9% control accuracy for silicon spin qubits fabricated by Imec on 300mm wafers, demonstrating scalable quantum processor manufacturing. Imec's semiconductor fabrication capabilities enable quantum computing companies to manufacture qubits using existing semiconductor infrastructure, reducing costs and accelerating quantum computer development. The organization provides process development and manufacturing services for quantum processors, serving quantum hardware startups requiring advanced semiconductor fabrication for superconducting qubits, silicon spin qubits, and other quantum computing architectures.
Imperial College London
Imperial College London is a public research university founded in 1907, located in London, United Kingdom. Imperial conducts advanced quantum research through quantum science and engineering programs advancing quantum computing quantum photonics quantum materials and quantum technologies. The university Controlled Quantum Dynamics Theory group and quantum engineering research advance quantum algorithms quantum control and quantum hardware. Imperial researchers contribute to quantum computing quantum communications and quantum sensing technologies. The university collaborates with UK quantum companies and maintains partnerships with industry advancing quantum technology commercialization. Imperial serves quantum research community through quantum research quantum education and technology transfer supporting UK National Quantum Technologies Programme positioning Imperial as leading quantum research institution advancing quantum technology development.
IMS Quantum Startup
IMS Quantum Startup is a planned startup to be launched by Japan's Institute for Molecular Science (IMS) to commercialize cold neutral atom quantum computers. The initiative partners with 10 major industry partners including Fujitsu, Hitachi, and NEC as part of Japan's national quantum computing strategy. This public-private collaboration represents Japan's commitment to developing sovereign quantum computing capabilities using cold atom technology developed at IMS research laboratories.
Industrial Technology Research Institute Quantum Division
Industrial Technology Research Institute (ITRI) Quantum Division developed a low-temperature-control IC module using TSMC's 28nm technology, reducing quantum computer size by 40%. Taiwan's leading applied research institution is leveraging its semiconductor expertise to develop quantum computing components. ITRI's quantum division works on quantum control electronics, cryogenic IC integration, and quantum processor development, supporting Taiwan's strategy to apply its world-leading semiconductor capabilities to quantum computing.
InfiniQuant
InfiniQuant is a German quantum technology company hosted at Max Planck Institute for the Science of Light, using quantum mechanics to generate true random numbers at high speed with research-grade quantum random number generators harnessing quantum randomness for quantum cryptography devices. Led by Imran Khan and Christoph Marquardt from Gerd Leuchs' division, InfiniQuant investigates applications in quantum communication with research programs including Metropolitan Quantum Communication, Satellite Quantum Communication, and Quantum Random Number Generation. The company provides QRNG technology for secure communications and cryptographic applications requiring provably random numbers from quantum processes. InfiniQuant is recognized among leading QRNG suppliers in industry market analyses alongside ID Quantique, KETS, and PicoQuant. Based at Germany's premier quantum optics research center, InfiniQuant bridges fundamental quantum communication research with practical QRNG applications for cryptography, secure communications, and quantum networking infrastructure.
Innolume
Innolume manufactures gain-chips and DFB lasers (765-1360nm) optimized for quantum photonics with stable, narrow-linewidth, single-frequency emission. The Dortmund company provides semiconductor lasers. Innolume's compact, reliable laser sources serve quantum communications, quantum sensing, and photonic quantum computing applications requiring single-frequency laser emission at telecom and near-infrared wavelengths.
Intel Quantum
In 2024, Intel's spin qubits achieved 99.9% gate fidelity, the highest reported for qubits made with all-CMOS-industry manufacturing, demonstrated in research published in Nature titled 'Probing single electrons across 300-mm spin qubit wafers.' On December 25, 2024, Intel published research on '12-Spin-Qubit Arrays Fabricated on a 300 mm Semiconductor Manufacturing Line' in Nano Letters, featuring the Tunnel Falls device consisting of 12 quantum dots arranged in a linear array - the largest number of qubits reported in a single Si/SiGe device to date. Intel researchers used a 300-millimeter cryogenic probing process, CMOS manufacturing techniques, and extreme ultraviolet (EUV) lithography to achieve tight dimensions while manufacturing in high volume. The small size of Intel's spin qubits (approximately 100 nanometers across) makes them denser than other qubit types like superconducting qubits, enabling construction of more complex quantum computers on a single chip. Intel plans to demonstrate high-fidelity two-qubit gates on its industry manufacturing process and develop 2D arrays with increased qubit count and connectivity.
IonQ
IonQ is a leader in trapped-ion quantum computing, publicly traded on NYSE (IONQ). In 2025, the company secured landmark funding including a $2 billion institutional investment and completed a $1 billion equity offering, bringing cash position to $1.6 billion. Q3 2025 revenue reached $39.9 million (+221.5% YoY), with FY 2025 guidance of $106-110 million. December 2025: Through subsidiary ID Quantique, deployed Slovakia's first national quantum communication network (skQCI) as part of the EU-wide EuroQCI initiative, connecting the Presidential Palace, National Security Authority, and Slovak Academy of Sciences. Also announced strategic quantum-biotech partnership with CCRM to accelerate next-generation therapeutic development. Invested in Horizon Quantum Computing's $110M PIPE financing alongside Fortune 50 technology companies. The company executed an aggressive M&A strategy in 2024-2025 totaling ~$2.5 billion across 7+ acquisitions: Oxford Ionics ($1.075B - trapped-ion technology), ID Quantique ($250M - quantum networking), Capella Space ($318M - satellite imaging), Vector Atomic (atomic clocks/inertial sensors), Qubitekk (quantum networking), Skyloom Global (optical communications), and Lightsynq Technologies (entanglement distribution). This positions IonQ for full-stack quantum-to-space capabilities. Major contracts include $54.5 million from US Air Force Research Lab. IonQ achieved world-record 99.99% two-qubit gate fidelity and #AQ 64 on its Tempo system. Named only quantum company in Deloitte's 2025 Technology Fast 500 (nearly 2000% revenue growth 2021-2024). November 2025: CEO Niccolo de Masi testified to Congress that IonQ's commercial era has begun. Roadmap targets CRQC by 2028 (~20,000 physical qubits) and ~2 million physical qubits by 2030. Launched Geneva Quantum Network (GQN) with Swiss consortium (UNIGE, CERN, Rolex SA). Key partnerships include CCRM (biotech), Heven AeroTech (strategic investor, $100M Series B), General Dynamics IT, SK Telecom, AstraZeneca, Ansys, Classiq, and Horizon Quantum. Focus areas: defense, government, enterprise, healthcare, and biotech sectors.
IPG Photonics
IPG Photonics manufactures fiber lasers and amplifiers including single-frequency linearly polarized sources for quantum computing applications. The company offers optical frequency combs for biomedical sensing, metrology, and quantum computing, along with specialized ultrafast lasers that deliver compact and efficient solutions purpose-built for quantum systems. IPG Photonics works directly with major quantum computing companies providing high-performance laser sources critical for quantum operations.
Isentroniq
Isentroniq is a Paris-based quantum hardware startup founded in May 2025 by Paul Magnard (PhD in experimental quantum information processing from ETH Zürich, former lead architect at Alice & Bob) and Théodore Amar (former Bain & Company consultant, ex-head of marketing at Hilti) that develops next-generation wiring infrastructure for superconducting quantum computers to solve the critical cryogenic power and space bottleneck that currently limits scaling beyond a few hundred qubits. In October 2025, Isentroniq raised €7.5 million in pre-seed funding led by Heartcore Capital with participation from OVNI Capital, Kima Ventures, IXCORE Group, Better Angle, EPSL VC, plus support from Bpifrance and France 2030 to industrialize its proprietary dense, near-heatless wiring technology that enables 1,000x more qubits to be integrated into existing dilution refrigerators. The company's breakthrough wiring solution is designed to remove heat, cost, and space constraints inside cryostats and unlock the path to million-qubit systems, with the potential to reduce the price of a million-qubit quantum computer from tens of billions to approximately €50 million while solving the wiring deadlock that has become the primary barrier to scaling superconducting quantum processors as control and readout lines currently add excessive heat and complexity that cap systems at a few hundred qubits.
Janis Research
Janis Research Company LLC is an American manufacturer of cryogenic and vacuum systems founded in 1961, headquartered in Woburn, Massachusetts. Janis provides cryogenic equipment including dilution refrigerators, cryostats, and ultra-low temperature systems used in quantum computing research, quantum materials studies, and quantum device testing. The company cryogenic systems enable temperatures approaching absolute zero required for superconducting qubit operation and quantum physics experiments. Janis serves quantum computing companies, research universities, national laboratories, and quantum technology developers requiring cryogenic infrastructure for quantum experiments and quantum processor cooling. The company contributes to quantum technology supply chain providing essential cryogenic equipment for quantum computing hardware development and quantum research advancing practical quantum computer implementations and quantum technology commercialization.
KETS Quantum Security
KETS Quantum Security is a UK quantum communications company founded in 2016 as University of Bristol spinout, pioneering chip-scale QKD devices. April 2025: Completed £1.7M Innovate UK contract to develop scalable, server-sized QKD prototype for critical infrastructure. BT consulted on design and now testing prototype. Called 'leader in quantum network components' by Innovate UK. November 2025: CEO Lisa Matthews warned UK needs Quantum Sovereign Wealth Fund or risks losing quantum companies, talent, and IP to foreign markets. Noted several UK firms (PsiQuantum, Universal Quantum, Oxford Ionics) shifted operations abroad due to limited domestic scale-up capital. Products: QKD (Quantum Key Distribution) and QRNG (Quantum Random Number Generators). Targets defense, finance, critical infrastructure, telecoms. Series A company with $4.39M funding from Speedinvest and Quantonation.
Keysight Technologies
Keysight Technologies provides advanced quantum test and measurement solutions including quantum computing test systems, qubit characterization tools, and precision measurement instruments that enable quantum researchers and manufacturers to validate, optimize, and scale quantum devices and systems across various quantum technology platforms.
Ki3 Photonics
Ki3 Photonics is a British photonics company specializing in advanced innovations for quantum networking and quantum computing using integrated photonics technology. The company develops photonic integrated circuits and components that enable scalable quantum communication networks and photonic quantum computing systems. Ki3 Photonics combines expertise in silicon photonics with quantum information science to create practical quantum networking infrastructure components.
Kiutra
Kiutra develops revolutionary helium-3-free, cryogen-free cooling systems for quantum technologies and materials research, founded in 2018 as a spin-off from Technical University of Munich by Alexander Regnat, Jan Spallek, Tomek Schulz, and Christian Pfleiderer. The company specializes in adiabatic demagnetization refrigeration (ADR) technology to provide efficient, easy-to-handle cryostats that facilitate quantum computer operation and scientific research without the need for expensive and scarce helium-3. In October 2025, Kiutra secured €13 million in new financing led by NovaCapital and 55 North to accelerate its global scale-up and expand production of next-generation quantum cooling solutions, addressing a critical infrastructure need for the growing quantum computing industry.
KM Labs
KM Labs is a JILA/NIST ecosystem company providing ultrafast lasers and optical systems for quantum technology research. The Boulder company manufactures femtosecond laser systems. KM Labs' ultrafast laser systems serve quantum optics research, quantum communications, and quantum computing applications requiring short optical pulses and precise optical frequency combs.
KuSpace Tech
KuSpace Technologies (also spelled CuSpace or QSpace Technologies) is a Russian startup founded in 2018, partnering with MISIS University and Russian Quantum Center (RQC) on satellite quantum key distribution experiments providing ground station equipment for quantum satellite links. Scientists from MISIS, RQC, and KuSpace conducted joint experiment on quantum cryptography transmission between Russia and China beginning work with China's Mo-tzu (Mozi) quantum satellite in 2019. The ground station in Zvenigorod created by KuSpace enabled exchange of encoded images with Chinese ground station in Nanshan demonstrating quantum-encrypted communication over 3,800 km between station near Moscow and Urumqi via Mozi satellite. In summer 2023, prototype quantum satellite Impulse-1 developed by NUST MISIS and KuSpace Technologies launched from Vostochny cosmodrome with equipment for testing laser communication channels. KuSpace provides quantum satellite communication technologies and ground station infrastructure supporting Russia's quantum communication network development and international quantum cryptography collaborations.
Lawrence Berkeley National Laboratory
Lawrence Berkeley National Laboratory (Berkeley Lab) is a USA national laboratory founded August 26, 1931, located in Berkeley, California, operated by University of California for United States Department of Energy. Berkeley Lab leads Quantum Systems Accelerator (QSA), one of five DOE National Quantum Information Science Research Centers bringing together 80 world-class researchers from 15 partner institutions. QSA catalyzes national leadership in quantum information science to co-design algorithms, quantum devices, and engineering solutions delivering certified quantum advantage in scientific applications. The laboratory conducts quantum computing research spanning quantum processors, quantum algorithms, quantum networking, quantum sensors, and quantum materials. Berkeley Lab operates quantum computing testbeds and advanced characterization facilities for quantum hardware development. The laboratory serves quantum research community collaborating with universities, industry, and government agencies advancing quantum computing for energy, chemistry, materials science, and national security applications requiring quantum computational advantage.
Lawrence Livermore National Laboratory
Lawrence Livermore National Laboratory (LLNL) is a USA federal research facility founded in 1952, located in Livermore, California, operated by Lawrence Livermore National Security LLC for United States Department of Energy and National Nuclear Security Administration. The Livermore Center for Quantum Science focuses on advancing quantum technology to solve national security challenges including quantum computing, quantum sensing, quantum communications, and quantum materials. LLNL conducts quantum computing research spanning quantum algorithms for scientific simulation, quantum error correction, quantum networking, and integration of quantum computing with high-performance computing for national security applications. The laboratory develops quantum technologies for nuclear stockpile stewardship, materials science, cryptography, and sensing. LLNL serves Department of Defense, Department of Energy, and intelligence community requiring quantum computing capabilities for national security, weapons physics simulation, materials discovery, and secure quantum communications advancing quantum advantage for critical national security missions.
levelQuantum
levelQuantum is an innovative quantum technology startup located at PoliHub in Milan, Italy, founded by three passionate scientists with proven track records in R&D, particularly in quantum photonics and quantum information processing. The company focuses on quantum protocols and devices that are based on quantum effects, offering functionalities that surpass existing technologies in security of information transfer, sensitivity of measurements, and speed and accuracy of computations. Co-founded by Prof. Magdalena Stobińska, a professor at the Institute of Informatics of the University of Warsaw and leader of the Quantum Technologies Research Group who specializes in quantum information processing covering applications from communication and cryptography through metrology to quantum computation. Co-founder Adam Buraczewski brings nearly 30 years of IT and software development experience with specialization in numerical modeling of quantum systems. The company is a Principal Investigator and Coordinator of the European MSCA Innovative Training Network AppQInfo.
LIGENTEC
LIGENTEC is a B2B manufacturer of photonic integrated circuits for AI, quantum technologies, LiDAR, and biosensors, spun off in 2016 from Professor Tobias Kippenberg's lab at the Federal Institute of Technology (EPFL) in Lausanne, Switzerland, by Michael Geiselmann, Michael Zervas, and Tobias Kippenberg. Headquartered near EPFL in Lausanne with offices near X-Fab in Corbeil-Essonnes, France, LIGENTEC specializes in commercializing all-nitride-core technology. The company is a Swiss-based semiconductor manufacturing partner offering low-loss SiN photonic integrated circuits (PICs) for quantum technologies, LiDAR, communications, space, and sensors. LIGENTEC raised $8.78 million from investors including Horizon Europe, EIC Accelerator, Foundation for Technological Innovation, and Venture Kick. LIGENTEC serves quantum computing applications requiring ultra-low-loss photonic components for qubit control and quantum state manipulation.
Lightmatter
Lightmatter is a Boston-based photonic supercomputer company founded in 2017 by CEO Nick Harris, Chief Scientist Darius Bunandar, and COO Thomas Graham, raising $400 million Series D in October 2024 at $4.4 billion valuation with total capital of $850 million. The round was led by T. Rowe Price Associates, with participation from Fidelity Management & Research Company and GV (Google Ventures). Lightmatter's Passage technology addresses AI infrastructure challenges by leveraging 3D-stacked photonics chips to move data, dramatically increasing AI cluster bandwidth and performance while reducing power consumption. The company builds the fastest interconnect layer using photonic chips developed since 2018. CEO Nick Harris indicated the Series D is likely the last private funding round before a potential IPO. Lightmatter will ready Passage for mass deployment in partner data centers, enabling scaling required for sustained AI innovation.
LioniX International
LioniX International is a Netherlands-based leading global provider of customized microsystem solutions specializing in photonic integrated circuits (PICs) and MEMS technologies. Originally founded as Lion Photonics in 2001 by Hans van De Vlekkert and René Heideman, the company grew through the merger of three Dutch start-ups: Satrax BV, XiO Photonics BV, and LioniX BV in 2016. Based in Enschede, Netherlands, LioniX has developed the industry-leading TriPleX silicon nitride waveguide technology platform enabling applications ranging from AR/VR, biosensing, and telecom to photonic quantum computing. The company's quantum photonics capabilities support quantum sensing, quantum processing, and quantum encryption applications. In January 2023, a Dutch consortium invested €3.5 million in LioniX International to drive growth in photonic integrated circuits for quantum applications. LioniX has been instrumental in the Enschede/Twente quantum ecosystem, collaborating with spin-off companies and research institutions to advance European quantum photonics capabilities.
LongWave Photonics
LongWave Photonics is a California-based company founded in 2010 by Alan Lee and Qing Hu, specializing in terahertz quantum cascade laser (QCL) systems for imaging, spectroscopy, and heterodyne receivers. Based in Mountain View, California's Silicon Valley, LongWave Photonics offers compact, turnkey terahertz QCL systems with milliwatt average power levels available across frequencies from 1.9 to 5 THz. The company's systems operate cryogen-free, require no optical alignment, and provide convenient terahertz sources for research and industrial applications. LongWave Photonics has received funding from institutional investor Innobridge Capital and the National Science Foundation through SBIR grants supporting NASA-related quantum photonics projects. The company's terahertz quantum cascade lasers serve quantum sensing, spectroscopy, and imaging applications requiring compact, reliable terahertz radiation sources. LongWave Photonics addresses the terahertz gap in the electromagnetic spectrum, providing quantum photonics solutions for security screening, materials characterization, astronomical detection, and fundamental physics research requiring terahertz frequency sources.
Longxun Quantum
Longxun Quantum (龙讯旷腾) is a Beijing-based quantum software company developing PWmat, a powerful plane-wave pseudopotential software package for quantum mechanical simulations of materials. The company provides computational tools for density functional theory (DFT) calculations, molecular dynamics simulations, and materials property predictions used in semiconductor, battery, and catalyst research. PWmat leverages GPU acceleration for high-performance quantum mechanical calculations, enabling researchers to simulate larger systems and longer timescales than traditional CPU-based approaches. Longxun also operates MCloud, a supercomputing cloud platform for materials simulation. The company serves academic research institutions and industrial R&D departments requiring advanced materials simulation capabilities. 2025 Developments: The company continues to enhance PWmat software capabilities and expand its user base in materials science and chemistry research communities in 2025. Focus remains on improving simulation accuracy and computational efficiency.
Los Alamos National Laboratory
Los Alamos National Laboratory (LANL) is a USA national laboratory founded in 1943 during Manhattan Project, located in Los Alamos, New Mexico, operated by Triad National Security LLC for United States Department of Energy and National Nuclear Security Administration. LANL conducts quantum computing research spanning quantum algorithms, quantum simulation, quantum cryptography, quantum networking, and quantum sensors for national security applications. The laboratory develops quantum technologies for nuclear weapons stewardship, materials science, secure communications, and sensing applications. LANL operates quantum computing testbeds exploring superconducting qubits, trapped ions, and quantum annealing for optimization and simulation problems. The laboratory collaborates with DOE National Quantum Information Science Research Centers and industry partners advancing quantum computing for national security missions. LANL serves Department of Defense, Department of Energy, and intelligence community requiring quantum computing capabilities for weapons physics, cryptanalysis, materials discovery, and quantum-safe cryptography protecting national security information against quantum threats.
Lumen Technologies
Lumen Technologies Inc. (formerly CenturyLink) is an American telecommunications company founded in 1968, headquartered in Monroe, Louisiana. Lumen provides networking infrastructure including fiber optic networks supporting quantum communication deployments and quantum networking research. The company explores quantum key distribution (QKD) integration into telecommunications infrastructure and quantum-safe networking solutions. Lumen collaborates with quantum technology providers advancing practical quantum communications capabilities over existing fiber networks. The company serves telecommunications enterprise and government markets requiring quantum-safe communications infrastructure. Lumen contributes to quantum networking development providing telecommunications infrastructure supporting quantum communications deployments and quantum-safe security implementations preparing network infrastructure for quantum internet and post-quantum security transitions protecting telecommunications networks against quantum computing threats.
Lumenisity
Lumenisity is a UK-based photonics company founded in 2017 as spinout from University of Southampton developing hollow core fiber technology for quantum communications and telecommunications. The company CoreSmart hollow core fibers enable ultra-low latency data transmission and enhanced security ideal for quantum key distribution (QKD) networks. Lumenisity was acquired by Microsoft in 2022 to advance hollow core fiber deployment for cloud and quantum networking infrastructure. The company technology reduces signal latency and improves data security compared to traditional solid core optical fibers. Lumenisity serves telecommunications operators, financial services, cloud providers, and quantum communication networks requiring ultra-fast secure data transmission. The company contributes to quantum communications infrastructure development advancing quantum-safe networking and quantum internet infrastructure.
Lumentum
Lumentum is a market-leading designer and manufacturer of optical and photonic products including laser chips, coherent transceivers, pump lasers, and photonic components. Their ultra-high-power, high-efficiency lasers are integrated into NVIDIA's Quantum-X Photonics networking switches, and their products enable optical networking and photonic innovations critical for quantum and AI infrastructure. Lumentum operates major semiconductor facilities in San Jose, California, producing components for quantum technologies and advanced computing systems.
LuxQuanta
LuxQuanta is a Barcelona-based quantum security startup founded in May 2021 as a spin-off from ICFO (The Institute of Photonic Sciences), specializing in quantum key distribution (QKD) systems. The company develops continuous variable QKD (CV-QKD) technology that provides ultra-secure data encryption and is easier to integrate into existing optical network infrastructures. In March 2023, LuxQuanta launched NOVA LQ™, a high-performing CV-QKD solution for intra-city networks. CEO Vanesa Diaz joined as business development manager in 2021 and became CEO a year later. LuxQuanta won the €50,000 equity-free first prize at the Supernova All-Stars Competition held during GITEX Europe 2025, establishing itself among Spain's top quantum computing companies.
Lytid
Lytid is a French photonics company specializing in the development and commercialization of terahertz laser sources based on quantum cascade laser (QCL) technology. Co-founded by Pierre Gellie and Jean-Charles Roche, the company builds on more than 20 years of applied research on QCL technology through Prof. Carlo Sirtori of the Matériaux et Phénomènes Quantiques laboratory at Paris Diderot University. Lytid's product portfolio includes deep-cooled SWIR cameras, ultra-fast Mid-IR QWIP detectors, terahertz sources based on quantum cascade lasers, and Sub-THz sources based on Schottky diode technology. The company serves quantum sensing, spectroscopy, and imaging applications across research and industrial markets. Based in Paris, Lytid represents France's commitment to advancing quantum photonics technologies for next-generation sensing and detection applications.
M Squared Lasers
M Squared Lasers is a Glasgow-based photonics and quantum technology company founded in 2006 by Dr. Graeme Malcolm OBE and Dr. Gareth Maker, specializing in world-class laser, quantum, and photonics systems critical for fundamental physics research. The company has grown to become a global leader with roughly 100 employees, exporting more than 90% of its products and doubling in size every two years since 2012 with revenue of about £19 million. M Squared's products have enabled breakthroughs in quantum science including the UK's first commercially viable quantum accelerometer, quantum clocks, quantum sensors, and quantum computing systems for industrial applications. Dr. Malcolm, who was awarded an OBE for services to Science and Innovation, regularly provides expert evidence on quantum technology to parliamentary committees and has received numerous entrepreneurship awards for his leadership in advancing photonics and quantum technologies.
M-Wave Design
M-Wave Design is a leading supplier of ferrite-based RF and microwave components for aerospace, defense, and quantum computing applications. Founded in 1988 and based in Simi Valley, California, the company designs and manufactures passive waveguide and coaxial components including isolators, circulators, adapters, and terminations. M-Wave's product portfolio is uniquely positioned to supply components that perform at cryogenic temperatures used in quantum computing, filling a critical niche for ferrite-based components in quantum processor systems. Acquired by Quantic Electronics in May 2024, M-Wave continues serving quantum computing, aerospace, and defense markets with high-reliability ferrite components. CEO Ken Boswell leads the operations.
Max Planck Institute
Max Planck Society (Max-Planck-Gesellschaft) is a German non-profit association of research institutes founded in 1948 (origins to 1911), headquartered in Munich, Germany. Multiple Max Planck Institutes conduct quantum research including Max Planck Institute for Quantum Optics advancing quantum physics quantum computing quantum materials and quantum technologies. The society institutes have produced numerous Nobel Prize winners in quantum physics. Max Planck researchers contribute to fundamental quantum science quantum hardware and quantum applications. The institutes serve global quantum research community through world-class quantum research and scientific discovery supporting German quantum research excellence and quantum innovation worldwide.
Mbryonics
Mbryonics is an Irish photonics company developing optical systems for high-speed secure communications, satellite communications, and 5G networks. The company won the 2024 EY Established Entrepreneurs of the Year award and secured €17.5 million from European accelerators. Mbryonics' photonic systems technology is relevant to quantum communications and quantum networking applications. The company develops advanced optical components and systems that can support quantum key distribution and other quantum communication protocols. Based in Galway, Mbryonics is a key player in Ireland's growing photonics and quantum technology sector, with applications spanning telecommunications, aerospace, and secure communications.
Mectalent
Mectalent is a top expert in product development, precision mechanics, and demanding equipment manufacturing for quantum technology applications. Based in Oulu with 6,000 m² of office and production facilities, the company has accumulated extensive expertise in vacuum technology, understanding the mechanical design, parts manufacturing, and equipment requirements for quantum systems. Mectalent cooperates with industry leaders including IQM Quantum Computers and Bluefors, providing precision manufacturing and vacuum technology components for quantum computing systems. As a member of Photonics Finland technology cluster, Mectalent serves Europe's quantum computing ecosystem with precision-engineered vacuum and mechanical components.
Menlo Systems
Menlo Systems is a spin-off from the Max Planck Institute for Quantum Optics specializing in Nobel Prize-winning optical frequency comb technology for precision metrology and quantum applications. The company delivers ultrastable lasers, femtosecond lasers, terahertz systems, and complete turnkey systems for quantum technology 2.0, combining frequency combs with ultrastable reference lasers for quantum optics, spectroscopy, time/frequency distribution, and semiconductor testing. Menlo Systems has global presence in US, Japan, and China serving quantum research and industrial applications.
Miraex
Miraex is a Swiss company that designs and manufactures quantum sensing and computing photonic systems, and builds quantum integrated circuits for high-sensitivity measurements. The company specializes in photonic quantum technologies including integrated quantum photonics chips for sensing applications. Miraex provides custom quantum photonic solutions for research institutions and industrial clients requiring ultra-precise quantum measurements.
Molecular Quantum Solutions
Molecular Quantum Solutions (MQS) is a German quantum chemistry startup that raised €600K pre-seed funding in 2023 to convert its tool stack into SaaS for pharmaceutical and chemical industries. The company develops quantum simulation software for molecular modeling and materials design applications. MQS targets chemists and materials scientists with user-friendly quantum software that abstracts the complexity of quantum computing, enabling domain experts to leverage quantum algorithms for computational chemistry without quantum computing expertise.
Monarch Quantum
Monarch Quantum, launched in December 2025 by Rob Williamson, develops Integrated Light Engines designed to simplify the integration, scaling, and commercialization of quantum systems. The company focuses on photonic/optical quantum technology with applications spanning computing, sensing, and communications. Monarch Quantum's mission is 'Delivering Quantum At Scale' and the company emphasizes partnerships as vital to accelerating quantum technology adoption across multiple fields. The launch received engagement from industry figures including Ilyas Khan and Jennifer Strabley.
Munich Quantum Instruments
Munich Quantum Instruments develops state-of-the-art photonic quantum sensors for applications such as optical quantum computing, quantum sensing, and quantum communication. The company is part of the Munich Quantum Valley ecosystem and specializes in creating high-performance single-photon detectors and quantum light sources. Munich Quantum Instruments provides critical components for photonic quantum systems.
Muquans
Muquans is a French quantum sensing company founded in 2011 as a spinout from Observatoire de Paris and Institut d'Optique that became the first company to exploit laser-cooled quantum manipulation techniques on an industrial scale, developing the world's first commercial Absolute Quantum Gravimeter achieving µGal-level precision through cold rubidium atom interferometry, along with atomic clocks, frequency transfer systems, and high-performance laser systems, acquired by iXblue in 2021 to create a European leader in photonics and quantum technologies, serving geophysics, oil and mineral exploration, civil engineering, and navigation markets with quantum sensors that measure gravitational acceleration changes to detect subsurface mass variations.
Nano-Meta Technologies
Nano-Meta Technologies is an Indiana-based company creating technology that advances optical and quantum computing through development of nano-scale optical components and novel materials. The company received early investment from Quantum Wave Fund and develops metamaterials for super-resolution imaging, sensing, energy conversion, and biomedical applications. Nano-Meta's innovations enable new generations of quantum photonic devices.
Nanoco Technologies
Nanoco Technologies Ltd is a UK-based nanotechnology company that spun out from the University of Manchester in 2001, specializing in the development and large-scale production of cadmium-free quantum dots and other electronic-grade nanomaterials. Co-founded by Dr. Nigel Pickett, who invented Nanoco's key quantum dot scale-up technology, the company is unique in the nanomaterials market as a manufacturer of high-grade quantum dots at commercial volumes. Since 2004, Nanoco has focused research efforts on cadmium-free quantum dot development, addressing environmental and health concerns while maintaining performance for applications in LCD displays, LED lighting, sensors, solar cells, and bio-imaging technologies. In October 2024, Dmitry Shashkov joined as Chief Executive Officer. Dr. Nigel Pickett, co-founder and CTO, announced retirement from the board in 2024 but remains with the company until February 2026. Publicly traded and based in Manchester, Nanoco represents British innovation in quantum materials commercialization.
Nanofiber Quantum Technologies
Nanofiber Quantum Technologies (NanoQT) is Japan's first startup focused on quantum computer hardware development, employing a unique nanofiber-based Cavity QED (Quantum Electrodynamics) method to construct universal quantum computers. Leveraging over a decade of engineering innovation, NanoQT developed a proprietary nanofiber cavity that unlocks the advantage of cavity QED while maintaining compatibility with optical fiber and existing quantum processing unit architectures. The company's interconnect technology is highly engineered for neutral-atom QPUs, providing a path beyond per-unit scalability limits. NanoQT announced the first closing of its $14 million Series A financing led by Phoenix Venture Partners, following more than $20 million in government R&D grants across Japan and the United States.
Nanosys
Nanosys is a California-based nanotechnology company founded by Larry Bock, Charles Lieber, and Paul Alivisatos, specializing in the development and manufacture of quantum dot materials for display applications. Headquartered in Milpitas, California's Silicon Valley, the company operates a state-of-the-art quantum dot nanomaterials fabrication facility and holds a robust intellectual property portfolio with numerous patents. As of 2023, industry-leading consumer electronics brands have shipped over 70 million devices in more than 1,000 unique products based on Nanosys' proprietary quantum dot technology, including tablets, monitors, and televisions. In September 2023, Nanosys was acquired by Shoei Chemical, Inc., with its world-class quantum dot research and development team and Silicon Valley laboratories now integrated into Shoei's operations. Dr. Martin Devenney serves as CEO, succeeding Jason Hartlove who led the company from 2008 to 2023. Nanosys' quantum dot enhancement films (QDEF) represent a major commercial success in applying quantum materials science to consumer technology.
Newport Corporation Quantum Division
Newport Corporation manufactures piezo motor linear actuators for nanoscale precision positioning in quantum computing and photonics. The California company provides photonics and motion control products. Newport's precision positioning systems, optical mounts, and vibration isolation platforms serve quantum optics laboratories and quantum computing companies requiring ultra-stable optical setups and precise alignment.
Nextnano
nextnano develops simulation software for semiconductor nanostructures and quantum devices. The Munich-based company provides computational tools for designing and optimizing quantum dots, quantum wells, and other nanostructures used in quantum computing and quantum sensing. nextnano's software is widely used in academic research and industrial development of quantum devices.
NKT Photonics
NKT Photonics is a Danish photonics company founded in 1999 that develops advanced photonic components and laser systems for quantum computing, quantum communication, and quantum sensing applications, providing specialized fiber lasers, photonic crystal fibers, and optical components that enable precise control and manipulation of quantum states in photonic quantum systems, serving quantum technology companies and research institutions with high-performance photonic infrastructure essential for quantum information processing and quantum optics experiments.
NTT
NTT (Nippon Telegraph and Telephone) develops quantum networking and quantum computing services through their quantum research programs, focusing on quantum communication networks, quantum key distribution systems, and quantum internet infrastructure while conducting research in quantum computing technologies, providing quantum-safe communication services and developing quantum network protocols to enable secure quantum communications and distributed quantum computing applications across Japan's telecommunications infrastructure. November 2025: NTT launched OptQC (Optical Quantum Computing) initiative with Fujitsu and other Japanese partners to develop room-temperature optical quantum computers. The OptQC consortium targets practical optical quantum computing systems leveraging Japan's photonics expertise. NTT's quantum research demonstrates continuous-variable quantum computing advances. 2025 Developments: Expanded IOWN (Innovative Optical and Wireless Network) initiative with quantum-secured communications integration. Advanced quantum repeater research for long-distance quantum networks. Participated in Japan's national quantum technology strategy implementation.
NTT Research
NTT Research Inc. is the US research division of NTT (Nippon Telegraph and Telephone) founded in 2019, headquartered in Sunnyvale, California. NTT Research Physics & Informatics Laboratories conduct quantum computing research developing optical parametric oscillators (OPO) for quantum computing and quantum algorithms. The company collaborates with universities and quantum institutions advancing quantum computing hardware and quantum applications. NTT Research explores quantum optimization quantum machine learning and quantum simulation using coherent Ising machines and other quantum-inspired approaches. The company serves quantum research community and enterprise clients requiring quantum computing capabilities. NTT Research contributes to quantum computing advancement combining Japanese quantum research excellence with Silicon Valley innovation advancing practical quantum computing systems and quantum technology commercialization.
Nu Quantum
Nu Quantum is a UK quantum networking company founded in 2018 as a University of Cambridge spinout that develops quantum photonic hardware including room-temperature single-photon sources and detectors for quantum networking applications, pioneering breakthrough Qubit-Photon Interfaces (QPIs) that enable 100x better entanglement rates than current lab state-of-the-art for distributed quantum computing networks, awarded £2.3 million UK government contract to deliver the world's first modular rack-mount scalable quantum data center prototype with Cisco, building industrialized distributed quantum computing systems at the UK's National Quantum Computing Centre using proprietary optical microcavity technology with micron-level precision and sub-80 picometre stability for quantum processor networking. 2025 Developments: In March 2025, Nu Quantum partnered with Cisco, NTT DATA, OQC, QphoX, Quantinuum, and QuEra to launch Quantum Datacenter Alliance. In June 2025, launched Quantum Networking Unit (QNU), first industrialized rack-mounted system for distributing entanglement. Hosted inaugural Quantum Datacenter Alliance Forum in London (June 2025).
Nucrypt
Nucrypt manufactures photonic instrumentation, including quantum entanglement generation, distribution, and measurement systems. The company develops advanced photonic components and systems for quantum communication, quantum key distribution, and quantum sensing applications. Nucrypt provides hardware solutions for quantum networks and secure quantum communication infrastructure with focus on practical deployment of quantum technologies.
NVIDIA
NVIDIA provides quantum computing services and infrastructure through their CUDA Quantum platform and DGX Quantum systems that enable hybrid quantum-classical computing by combining quantum processors with NVIDIA's GPU-accelerated computing platform, offering quantum simulation capabilities, quantum circuit optimization, and quantum machine learning tools that leverage classical GPU computing to enhance quantum algorithm development and execution across various quantum hardware platforms. November 2025: NVIDIA expanded NVQLink open reference architecture partnerships with Oxford Quantum Circuits (OQC) and Orca Computing for real-time, low-latency connectivity between quantum and AI supercomputing systems. NVIDIA's venture arm NVentures participated in Quantinuum's $600M funding round at $10B valuation. CUDA-Q platform integration expanded across major quantum hardware providers. 2025 Developments: In September 2025, announced NVIDIA Advanced Quantum Computing (NVAQC) research center in Boston focused on hybrid quantum-classical algorithms and drug discovery. Invested in SandboxAQ's $150M round alongside Google. Founding collaborator for Quantinuum's Accelerated Quantum Research Center. Partnerships with Classiq, Quandela, and quantum hardware providers continue expanding.
NVision
NVision was established as a spin-off from the University of Ulm's Institute of Quantum Optics and Institute of Theoretical Physics, leveraging nitrogen-vacancy centers in diamond for quantum sensing applications in medical imaging. Founded by Prof. Fedor Jelezko, Prof. Martin Plenio, Prof. Alex Retzker, and Ilai Schwartz (CTO), with Dr. Sella Brosh serving as CEO. The company raised $30 million Series A in June 2023 to deploy quantum-powered hyperpolarizers for MRI imaging, enabling earlier cancer treatment assessment. NVision's technology fundamentally changes medical MRI by dramatically improving sensitivity through dynamic nuclear polarization using NV centers in diamond. The company bridges quantum physics and clinical medicine.
Oak Ridge National Laboratory
In 2024-2025, Oak Ridge National Laboratory achieved several major quantum computing milestones. In September 2025, Riverlane's Deltaflow 2 real-time quantum error correction system was installed at ORNL, marking the first dedicated real-time QEC integration at a U.S. national laboratory. Also in September 2025, ORNL and Australian-German company Quantum Brilliance inaugurated the United States' first on-site commercial quantum-computer cluster, the first of its kind to integrate a diamond-based quantum processor into a high-performance computing (HPC) environment. On August 29, 2025, ORNL released a comprehensive study outlining software architecture designed to integrate quantum computers with the world's fastest supercomputers, notably the exascale machine Frontier. In November 2024, ORNL added IQM Resonance quantum cloud service to its Quantum Computing User Program. In August 2025, ORNL researchers developed a quantum microscope for nanoscale imaging and a multihop quantum network integrating with fibre-optic infrastructure. These developments demonstrate ORNL's leadership in quantum-HPC integration.
Octave Photonics
Octave Photonics is a NIST ecosystem company developing integrated photonics for quantum and classical applications. The Boulder company manufactures photonic integrated circuits. Octave Photonics' chip-scale photonic devices enable miniaturization and cost reduction for quantum communications, quantum sensing, and quantum computing applications through integrated photonics technology.
Omni Circuit Boards
Omni Circuit Boards Ltd. is a Canadian manufacturer specializing in superconductive low-temperature aluminum-trace printed circuit boards for quantum computing and cryogenic applications. Founded in 1985 as Omni Graphics print shop, the company quickly evolved into a premier PCB manufacturer for prototyping, short runs, and urgent R&D response projects. Based in Richmond, British Columbia, Omni Circuit Boards is the proud manufacturer of cryogenic aluminum-trace PCBs found in D-Wave quantum computers. The company's aluminum-trace PCB technology is essential for low-temperature engineering, quantum computing systems, and other leading-edge applications requiring specialized circuit boards that function at cryogenic temperatures. Omni Circuit Boards signed a research and development agreement with D-Wave Systems Inc. to support further advancement of aluminum-trace printed circuit boards for quantum computing applications. With over 35 years of PCB fabrication experience, Omni Circuit Boards provides critical infrastructure components enabling superconducting quantum computing systems to operate reliably at ultra-low temperatures.
OptQC
OptQC is a Japanese photonic quantum computing company building highly scalable, general-purpose optical quantum computers operating at room temperature using time-domain multiplexing technology. Founded on 25 years of optical quantum computing research at University of Tokyo. November 2025: Signed collaboration agreement with NTT Corporation to develop optical quantum computers targeting 10,000 qubits by 2027 and 1 million qubits by 2030. 2025 Developments: First commercial optical quantum computer scheduled for April 2026. Target: 10,000 quantum modes processor by 2028. Technology enables room-temperature operation and scalable quantum computing without cryogenic cooling. Partnership with NTT leverages Japan's photonics and telecommunications expertise.
Orange Quantum Division
Orange S.A. is a French multinational telecommunications corporation founded in 1990 (originally France Télécom from 1988) and headquartered in Paris, France, with Quantum Division developing quantum-safe telecommunications infrastructure and quantum networking capabilities. Orange conducts quantum networking research deploying quantum key distribution (QKD) networks and quantum-safe communications systems across French and European telecommunications infrastructure. The company collaborates with French quantum technology companies and research institutions including CryptoNext Security, Alice & Bob, and Pasqal advancing practical quantum communications deployments. Orange invests in post-quantum cryptography preparing telecommunications infrastructure for quantum computing threats. The company demonstrated quantum-secured fiber optic network connections for enterprise and government customers requiring ultra-secure communications. Orange serves European telecommunications markets, government agencies, financial institutions, and critical infrastructure sectors requiring quantum-safe communications and quantum network infrastructure. The company contributes to European Quantum Communication Infrastructure (EuroQCI) initiative and French National Quantum Strategy advancing quantum-safe telecommunications at scale.
ORCA Computing
ORCA Computing is a University of Oxford spinout founded in 2019 developing photonic quantum computers using single photons and time-bin encoding. The company's technology operates at room temperature without complex cryogenic cooling. In October 2024, ORCA launched the PT-2 system featuring Sparrow Quantum's photon chip technology, achieving 4,000x performance increase over PT-1 with 90 effective qubits. The PT-2 enables quantum-enhanced generative AI capabilities. 2025 Developments: Selected for UK National Quantum Computing Centre (NQCC) Testbed Programme. Continued expansion of cloud-accessible quantum computing services. Partnerships with defense, aerospace, and enterprise customers for optimization and machine learning applications. Focus on building toward fault-tolerant photonic quantum computing with PT-3 roadmap targeting 2026.
Oriole Networks
Oriole Networks is a UCL spinout developing photonic networking technology for AI data centers using light to create networks of AI chips, reducing energy consumption by 40x with 100x speed improvements compared to traditional electrical interconnects. October 2024: Raised $22 million Series A led by Plural, bringing total funding to $35 million. Major product launches planned for 2025. Technology: Uses photonic switching and optical interconnects to address the data center bottleneck for AI workloads. The company's approach enables massive parallelization of AI compute resources while dramatically reducing power consumption.
Oscilloquartz
Oscilloquartz, founded in 1949 in Switzerland's watchmaking region, is a timing and synchronization company now a subsidiary of Adtran since 2021. The company designs products for utilities, defense, finance, IoT, broadcasting, and mobile networks including 5G. ADVA developed groundbreaking optical cesium atomic clocks including the OSA 3300-HP high-performance optical cesium atomic clock, OSA 3350 ePRC+ (industry's first ePRC optical cesium clock delivering 14-day holdover with 35 nanoseconds accumulated error), and OSA 3350 Super ePRC (SePRC) with extensive timing holdover and high-performance stability. These innovations address critical GNSS outages from jamming and spoofing attacks, offering vital backup for mission-critical infrastructures like mobile networks and power utilities. Oscilloquartz's coreSync technology leverages optical-pumping techniques using laser diodes. POST Luxembourg deployed ADVA's optical cesium atomic clock to combat GNSS attacks and improve PNT resilience. The solutions support quantum computing applications requiring ultra-precise timing synchronization.
Panasonic
Panasonic Holdings Corporation is a Japanese multinational electronics company founded in 1918, headquartered in Osaka, Japan. Panasonic explores quantum technologies including quantum materials for electronics, quantum computing research, and quantum sensor development. The company investigates quantum materials for advanced batteries and energy storage systems. Panasonic collaborates with quantum research institutions and universities advancing quantum materials science and quantum technology applications. The company serves consumer electronics, automotive, industrial systems, and energy markets. Panasonic contributes to Japan quantum technology ecosystem through quantum materials research and quantum technology exploration representing Japanese electronics industry quantum innovation for materials science and advanced electronics applications advancing quantum-enhanced materials and quantum technology integration in industrial systems.
Peking University Quantum Materials and Devices Center
Peking University Quantum Materials and Devices Center is a major research center for quantum materials, devices, and computing, contributing talent to Chinese quantum companies. The center conducts fundamental research on quantum materials and devices. The center's research spans topological materials, superconducting materials, and quantum devices, providing scientific foundations for China's quantum hardware development and training the next generation of quantum scientists.
Perceval
Perceval is an open-source quantum photonic development toolkit developed by Quandela that offers a Python-based framework for simulating, designing, and experimenting with photonic quantum circuits and algorithms. Through a simple object-oriented Python API, Perceval provides tools for composing circuits from linear optical components, defining single-photon sources, manipulating Fock states, running simulations, and experimenting with new quantum algorithms. Interfaced with QPUs on Quandela cloud, enabling computations on actual photonic computers. In 2024, EuroHPC JU selected Quandela consortium for EuroQCS-France initiative, providing remote access to 12-qubit photonic quantum computer. Published in Quantum journal as open-source platform for discrete-variable photonic quantum computers. Partnership with OVHcloud makes Perceval available for developers to run quantum algorithms by simulating optical processors on OVH Cloud.
Phantom Photonics
Phantom Photonics is a NATO DIANA company spun out from the University of Waterloo's Institute for Quantum Computing, developing advanced quantum sensors with unmatched noise resilience for space, underwater, and long-distance applications. The company's cutting-edge technology for quantum 3D remote sensing was developed at the Quantum Photonics Lab by Alex Maierean, Dr. Shihan Sajeed, and Prof. Thomas Jennewein. Phantom's quantum coherence-based sensors offer superior noise resilience, covert functionality, and imperviousness to adversarial disabling, enabling undersea asset monitoring and anti-collision systems for satellites. The company raised $320K in funding and plans its first marine sensor network demonstration by end of 2025.
Phasecraft
On September 2, 2025, Phasecraft announced securing $34 million in a Series B funding round to accelerate development of quantum algorithms deployable on today's noisy intermediate-scale quantum (NISQ) devices. The funding was co-led by Plural, Playground Global, and Novo Holdings' newly launched Quantum Fund (making its first direct investment in quantum software), with participation from existing investors LocalGlobe, AlbionVC, and Parkwalk Advisors, bringing total capital raised to over $50 million. Phasecraft developed the THRIFT algorithm, published in Nature Communications in 2025, which enhances quantum simulation efficiency by 10x and reduces computational costs by prioritizing interactions based on their speed. The company's approach drastically reduces quantum gates needed to run simulations by factors of more than a million in some cases - for example, lithium copper oxide can be simulated with 410,000 quantum gates compared to the previous baseline of 1.5 trillion. The capital will support Phasecraft's hardware-agnostic approach, rewriting quantum algorithms to run efficiently on NISQ machines from Google, IBM, Quantinuum and QuEra. 2025 Developments: In September 2025, Phasecraft raised $34 million Series B co-led by Plural, Playground Global, and Novo Holdings Quantum Fund. First direct quantum-software investment from Novo Holdings. Additional investors include LocalGlobe, AlbionVC, and Parkwalk Advisors. Expanding U.S. operations and industrial collaborations with Johnson Matthey, Oxford PV, UK's NESO, and BT. Phasecraft's algorithms are more efficient by factors of millions for material discovery and energy optimization
Phoenix Company of Chicago PkZ Quantum
Phoenix Company of Chicago provides PkZ Connection Technology specialized for quantum computing RF interconnects and cabling. The historic Chicago company manufactures RF components. Phoenix's PkZ quantum interconnect technology provides high-density, low-loss RF connections for quantum computing systems, addressing the challenge of routing thousands of RF control lines in cryogenic quantum processors.
Photarix
Photarix is a 2024-2025 Lancaster University spinout developing Quantum Ring Single-Photon Light-Emitting Diodes (QR SPLEDs) for Quantum Key Distribution - compact, low-cost, room-temperature operation. Founded by Gizem Acar Tekin (CEO) and Professor Manus Hayne (Chief Scientific Officer). November 2025: Showcased at UK National Quantum Technologies Showcase in London. 2026: Invited to host stand at International Cyber Expo in London. First Lancaster spinout through NW CyberCom programme. Funding: European Commission Horizon 2020 (Quantimony doctoral network), Innovate UK Future Telecoms ICURe programme, Research England NW CyberCom (£1.2M initiative). Applications: quantum-secure communications for banking, messaging, data storage. Technology enables on-demand single-photon emission at telecom wavelengths without cryogenic cooling.
Photon Force
Photon Force is an Edinburgh-based company that develops high-performance single-photon avalanche diode (SPAD) arrays and time-resolved imaging solutions for quantum sensing and photonics applications. Founded as a spinout from Heriot-Watt University and the University of Edinburgh, the company commercializes breakthrough SPAD sensor technology enabling photon-counting detection with picosecond timing resolution. Photon Force's sensors serve quantum technology applications including quantum key distribution, quantum imaging, LIDAR, fluorescence lifetime imaging microscopy (FLIM), and quantum communication systems. The company's technology provides critical enabling components for photonic quantum computing, quantum networking, and quantum sensing systems requiring single-photon detection capabilities.
Photon Queue
Photon Queue is the first startup from University of Illinois Urbana-Champaign accepted into Duality Accelerator and the first quantum-focused UIUC startup, led by current and former PhD students from physics professors Paul Kwiat and Virginia Lorenz's labs, based on research from Kwiat's group. The company develops efficient and less costly quantum memories by storing single photons in free-space storage loops using optical switches paired with high-reflectivity mirrors, avoiding complex transduction processes required by other quantum memory approaches. Photon Queue's unique approach keeps photonic qubits intact through motion in compact spaces, avoiding costly cryogenics, ovens, or vacuums, designed to work with virtually any single photon source. The technology uses multiplexed optical delay lines and Herriott cells for compact, efficient photon storage. Photon Queue joined Chicago Quantum Exchange as corporate partner. Applications include quantum communication, computing, and metrology requiring photon storage and retrieval for quantum information processing and distributed quantum systems.
Photon Spot
Photon Spot is a California-based company specializing in sub-Kelvin cryogenic systems and superconducting nanowire single-photon detectors (SNSPDs) for quantum technology applications. Founded in 2009 and headquartered in Monrovia, California, the company offers detectors with ultralow dark counts, precise timing resolution, and high quantum efficiency, combined with cryogenic systems operating at temperatures below 1 Kelvin. Photon Spot's products serve quantum communications, quantum computing, quantum sensing, and semiconductor diagnostics applications. The company's ultra-compact, ultra-low vibration cryogenic systems support time-resolved imaging applications benefiting integrated circuit manufacturers and quantum technology researchers. Primary customers include research institutions, national laboratories, and companies engaged in quantum-related research and development. Backed by investors including the National Science Foundation, Photon Spot represents American innovation in single-photon detection technology critical to photonic quantum computing, quantum key distribution, and quantum metrology applications.
Photonic Inc
Photonic Inc develops distributed, fault-tolerant quantum computers using silicon 'T centre' spin qubits optically linked via telecom fiber. 150+ employees in Vancouver, US, UK. Total funding: $140M (including $100M from Microsoft, BCI, UK NSSIF). November 2025: Advanced to DARPA QBI Stage B (up to $15M). Stage A blueprint validated utility-scale design based on optically-linked silicon spin qubits. September 2025: Nature Photonics publication - first electrically-injected single-photon source in silicon (with Simon Fraser University). New diode nanocavity devices for electrical control over silicon color center qubits. August 2025: Selected as Canadian Defence IDEaS semi-finalist - $1M CAD grant for quantum repeater technology supporting NORAD modernization. Networking is native feature - qubit modules entangled via telecom-fiber links. Targeting utility-scale quantum computing by 2033.
PhotonPath
PhotonPath is a pioneer in integrated photonics developing proprietary silicon photonics chipsets and plug-and-play modules for quantum applications. Founded by Douglas Aguiar (CEO) and Emanuele Guglielmi (CTO) during their PhD and Post-Doc research at Politecnico di Milano, the company spun off from the university and was nurtured within PoliHub deep-tech hub. PhotonPath raised €5.1 million Series A in 2025 to scale manufacturing. Their patented technology enables ultra-compact, energy-efficient solutions for quantum communications, sensing, and computing applications. The company operates R&D labs and manufacturing facilities in Milan and Trento, with applications extending to hyperscale data centers, telecom networks, and aerospace systems.
PHPK Technologies
PHPK Technologies provides cryogenic and high vacuum equipment, vacuum jacketed piping, and CVI Torr Master Cryopump product line for quantum applications. The company manufactures vacuum systems. PHPK's vacuum pumps and cryogenic equipment serve quantum computing and quantum sensing applications requiring ultra-high vacuum environments and cryogenic pumping capabilities.
PI Physik Instrumente
PI (Physik Instrumente) manufactures piezo systems, hexapods, and nano-positioning stages for Silicon Photonics, Quantum Photonics, and quantum computing applications. The Karlsruhe company provides precision motion control. PI's piezoelectric positioning systems enable the nanometer-scale precision required for quantum optics alignment, photonic quantum chip testing, and quantum device assembly.
Picarro
Picarro, Inc. is a California-based company founded in 1998, specializing in gas analyzers based on cavity ring-down spectroscopy (CRDS) technology for atmospheric science, greenhouse gas measurement, air quality monitoring, and industrial applications. Headquartered in Santa Clara, California, Picarro holds dozens of patents related to CRDS technology and designs and manufactures products at its Silicon Valley facility. Led by CEO Alex Balkanski since November 2013, Picarro provides precision measurement solutions for monitoring greenhouse gases, volatile organic compounds, fugitive emissions, energy exploration and distribution, and supply chain integrity. The company's CRDS-based instruments offer ultra-precise trace gas detection leveraging quantum mechanical principles of light-matter interaction for applications in environmental monitoring, climate research, and industrial process control. In 2023, Italian energy infrastructure company Italgas became a shareholder in Picarro, expanding its global reach. Picarro's quantum sensing capabilities serve research institutions, government agencies, and commercial customers requiring parts-per-trillion sensitivity for gas detection and atmospheric analysis.
PicoQuant
PicoQuant is a leading research and development company specialized in optoelectronics, founded in 1996 and headquartered in Berlin-Adlershof science and technology park, Germany, as a worldwide leader in single photon counting applications. The company's products for photon counting include high-end modules for time-correlated single photon counting (TCSPC) and event timing, single photon sensitive detectors, and specialized analysis software for time-resolved fluorescence measurements and quantum correlations. PicoQuant's photon counting detectors include photomultiplier tubes (PMT), Hybrid photomultiplier detectors (HPD), and Single Photon Avalanche Diodes (SPAD) covering spectral ranges between UV and NIR with timing resolutions in the picosecond range. The PDM SPAD series covers 400 nm to 1000 nm with better than 50 ps (FWHM) photon timing resolution. PicoQuant's product portfolio encompasses picosecond pulsed diode lasers, ultra-fast time taggers, photon counters, single photon detectors, time-resolved confocal microscopes, and fluorescence lifetime spectrometers for life sciences, materials sciences, and quantum technologies.
Piezosystem Jena
Piezosystem Jena manufactures OEM piezo actuators and piezo stages for semiconductor, photonics, and aerospace with over 30 years of sub-nanometer precision experience. The Jena company provides precision positioning. Piezosystem Jena's piezoelectric actuators and positioning stages serve quantum technology applications requiring ultra-precise motion control for optical alignment, quantum device positioning, and scanning probe microscopy.
Pilot Photonics
Pilot Photonics is a Dublin-based laser product development company founded in 2011, specializing in unique photonic integrated circuit (PIC)-based laser products exceeding capabilities of current market offerings. The company was spun out from DCU and Tyndall National Institute based on a decade of photonics research at two Irish centers of excellence. Pilot Photonics developed the world's only photonic integrated comb laser source, an optical comb source bringing benefits to optical communication networks, gas sensing, and atomic clocks used in satellites for GPS navigation. In 2025, Pilot Photonics secured major European funding to develop key technologies for Co-Packaged Optics (CPO) scaling. Based at DCU Alpha in Dublin, the company serves telecommunications, sensing, and quantum technology markets with advanced laser and PIC solutions enabling quantum computing and quantum communication applications.
PINC Technologies
PINC Technologies is a Pasadena-based Caltech spinout founded in 2023 that develops scalable nonlinear photonic integrated circuits for quantum computing applications. The company emerged from stealth in October 2025 with $6.8 million in seed funding led by BootstrapLabs, with participation from Catalus Capital and Convergent Ventures, to unlock scalable nonlinearity for photonic chips through their proprietary NanoPPLN platform. PINC's technology brings high-performance nonlinear optics to integrated photonic circuits, enabling applications in quantum computing, optical sensing, artificial intelligence, data networks, biomedical devices, atomic clocks, lidar, and metrology. The company's NanoPPLN platform addresses the missing scalable nonlinearity in photonic integrated circuits, making nonlinear optics fully integrated and scalable for next-generation quantum and photonic systems, contributing to advances in quantum photonics and enabling new capabilities across multiple technological domains requiring integrated nonlinear optical components. The seed funding will be used to scale production of their NanoPPLN chips and expand commercial partnerships in quantum computing and photonic systems industries.
Pixel Photonics
Pixel Photonics develops advanced photonic components and systems for quantum computing and quantum communication applications. The German company specializes in integrated photonics and silicon photonics technologies that enable scalable quantum systems. Pixel Photonics creates building blocks for photonic quantum processors and quantum networks.
PlanQC
In July 2024, planqc secured €50 million in Series A financing led by CATRON Holding and DeepTech & Climate Fonds, with investment to be used to establish a quantum computing cloud service and develop quantum software for industries such as chemistry, healthcare, and finance. Planqc was selected to lead a €20 million project funded by the German Federal Ministry of Education and Research to build and deploy a 1,000-qubit quantum computer at the Leibniz Supercomputing Centre in Germany through the 'Multicore Atomic Quantum Computing System' (MAQCS) project. In May 2023, planqc received a €29 million order from the German Aerospace Centre (DLR) to develop a scalable neutral-atom quantum computing platform. Planqc's technology, built on award-winning research at the Max-Planck-Institute for Quantum Optics, uses individual atoms confined in crystals of light as qubits, with the company demonstrating scaling of neutral atoms to 1,200 qubits. Investment in neutral atom quantum computing now exceeds $300 million across companies like Planqc, Atom Computing, and Infleqtion.
PLASSYS-BESTEK
PLASSYS-BESTEK, founded in 1987, is a French company providing high-performance vacuum and ultra-high vacuum solutions for innovative thin film material deposition. PLASSYS-BESTEK is a recognized leader in equipment for quantum technologies, having designed top-level deposition tools since the early 2000s that are now central to manufacturing superconducting qubits and other quantum devices. The company supplies custom-designed systems for prestigious research laboratories, universities, and industrial manufacturing plants. In October 2025, PLASSYS-BESTEK delivered the SQUID-6 UHV, a state-of-the-art quantum chip fabrication equipment, to Alice & Bob as part of the ULTRACAT project supported by France's defense innovation agency (AID). The SQUID-6 UHV is a fully automated, ultra-high vacuum deposition system employing a modular cluster architecture that minimizes chip exposure to cross-contamination, reducing material imperfections and guaranteeing high-quality Quantum Processing Units (QPUs). PLASSYS's core technologies include vacuum evaporation (thermal/e-beam), sputtering, and ion etching, along with production systems for diamond growth via PECVD. PLASSYS equipment is vital for applications in semiconductor technology, superconductors, nano-electronics, optics, photonics, and spintronics.
Plessey Semiconductors
Plessey Semiconductors is a UK-based leading developer of advanced optoelectronic technology solutions, operating as the UK's only LED manufacturer and the only LED maker globally commercializing LEDs on silicon substrates using their award-winning proprietary GaN-on-Silicon platform. The company has connections to quantum technology through partnerships integrating Nanoco Technologies' cadmium-free quantum dot semiconductor nanoparticle technology into their monolithic microLED displays for augmented reality and virtual reality applications. With leading-edge 150mm and 200mm wafer processing facilities in Plymouth and comprehensive photonic characterization laboratories, Plessey provides full-field emissive microLED displays combining high-density RGB pixel arrays with CMOS backplanes, with potential applications in optical processing units for AI operations that are faster and more energy-efficient than traditional silicon devices.
Polytechnic University of Madrid Quantum Division
Polytechnic University of Madrid (Universidad Politécnica de Madrid - UPM) is a Spanish public research university founded in 1971 and headquartered in Madrid, Spain, with Quantum Division participating in Spain's QKD-GEO quantum key distribution geostationary satellite mission. UPM is part of the large industrial consortium led by Thales Alenia Space developing quantum communications technology for space-based quantum key distribution systems. The university brings telecommunications engineering and quantum communications research expertise to satellite QKD development. UPM collaborates with Institute of Astrophysics of the Canary Islands, University of Vigo, Thales Alenia Space, and Hispasat advancing quantum-safe satellite communications. The university conducts research in quantum cryptography, quantum optics, and quantum communications protocols for satellite applications. UPM serves European quantum communications research community, quantum technology companies, and government agencies requiring quantum communications research, quantum networking protocols development, and satellite QKD systems engineering. The university contributes to Spanish national quantum strategy and European Quantum Communication Infrastructure (EuroQCI) initiative.
Prenishq
Prenishq Pvt. Ltd. is a Delhi-based quantum hardware company incubated at IIT Delhi, selected for support under India's National Quantum Mission (NQM) and the National Mission on Interdisciplinary Cyber-Physical Systems (NMICPS). The company develops and commercially deploys high-precision diode laser systems essential for quantum computing and sensing technologies. Prenishq's precision diode-laser systems are critical components for controlling quantum states in quantum processors, quantum communication systems, and quantum sensing applications. Union Minister Dr. Jitendra Singh announced Prenishq's selection as one of eight pioneering startups supported by the Department of Science and Technology's quantum technology initiative, establishing India's competitive position in the global quantum technology race.
Pristine Diamonds
Pristine Diamonds is an Indian quantum technology company developing advanced diamond materials with nitrogen-vacancy (NV) centers for quantum sensing applications. The company leverages India's diamond industry expertise to create high-purity synthetic diamonds optimized for quantum applications. Selected as one of eight startups under India's National Quantum Mission with INR 30 crore in funding support. Pristine Diamonds focuses on producing diamond substrates and sensors for magnetic field detection, temperature sensing, and quantum computing applications. The company's NV-center diamond technology enables ultra-sensitive magnetic field measurements for applications in medical imaging, materials characterization, and navigation systems.
Promwad
Promwad is an international electronics design house offering custom hardware and embedded software development with specialized expertise in FPGA-based solutions for quantum computing. Headquartered in Germany with engineering offices in Lithuania, Latvia, Poland, and Serbia, the company develops FPGA-based digital logic for real-time control signal generation and modulation of qubits using high-speed DACs and PLLs. Promwad's FPGA technologies serve as essential building blocks in quantum computers for readout boards, parallel processing, and custom instrumentation. The company provides advanced FPGA-based development solutions for quantum computing hardware, working with Xilinx and other FPGA platforms. Promwad serves telecom, automotive, industrial automation, and quantum computing industries.
Promwad Engineering
Promwad Engineering provides FPGA-based quantum computing control systems and embedded electronics design services. With engineering offices in Poland and across Eastern Europe, the company specializes in developing quantum control hardware using Xilinx RFSoC and other FPGA platforms. Promwad's engineering capabilities include high-speed DACs, complex SoC architectures, and real-time signal processing for qubit manipulation. The company serves quantum computing startups and research institutions requiring rapid prototyping and custom FPGA development for quantum processor control. Their expertise spans telecommunications, industrial automation, and quantum computing applications with focus on FPGA design and high-speed interfaces.
PsiQuantum
PsiQuantum is building utility-scale fault-tolerant photonic quantum computers with unprecedented funding scale. September 2025: Raised $1 billion Series E at $7 billion valuation led by BlackRock, Temasek, and Baillie Gifford. New investors include NVentures (NVIDIA), Qatar Investment Authority, Macquarie Capital, Morgan Stanley Counterpoint Global. Total funding now exceeds $2 billion. Integrated Barium Titanate (BTO) into manufacturing - world's highest-performing electro-optic material for quantum switches. November 2025: MOU with Lockheed Martin for aerospace/defense quantum algorithms. DARPA US2QC Phase 3 selection. Constructing utility-scale facilities in Brisbane (Australia) and Chicago, plus 130,000 sq ft California test facility. Partnership with NVIDIA on quantum algorithms, GPU-QPU integration, and silicon photonics. GlobalFoundries 300mm wafer manufacturing collaboration. First system: 1 million physical qubits targeting 2027-2029. Market positioning: highest-funded quantum company, photonic technology leader with Australian government backing and major enterprise partnerships.
Q-Block Computing
Q-Block Computing is a vertically integrated quantum computing startup focused on delivering fault-tolerant quantum devices for advanced computation, communication, and sensing. The company commercializes a scalable and integrated quantum photonic platform called the Q-block module, inspired by today's superscalar processing architectures with distributed precision timing. Q-block modules are deployed as exquisite quantum clocks and resilient quantum communication devices for the defense and security sector. The company offers miniature interference-filter-based external cavity diode lasers and monolithic thermally-compensated laser resonators that have been stabilized to control complex atoms and photons in quantum systems.
Q-CTRL
Q-CTRL is a leading quantum technology company specializing in quantum control infrastructure software that makes quantum computing hardware more stable, reliable, and useful. Founded in 2017 by Michael Biercuk, a quantum physicist from the University of Sydney, Q-CTRL has developed a comprehensive suite of quantum firmware and software tools that apply machine learning and control theory to reduce errors in quantum systems. The company's products include Fire Opal for quantum circuit optimization, Black Opal for quantum computing education, and Boulder Opal for quantum control optimization. Q-CTRL's technology has been validated on quantum computers from major providers including IBM, Google, and Rigetti, demonstrating significant improvements in quantum algorithm performance through error suppression and noise mitigation. August 2025: DARPA selected Q-CTRL for the Robust Quantum Sensors (RoQS) program with an A$38M (US$24.4M) contract for field-validated quantum sensing technologies for high-performance military vehicles. On September 16, 2025, Q-CTRL announced a strategic partnership with QUCAN Quantum Technologies (QUCAN), merging complementary strengths in quantum control software and hardware to deliver quantum sensing solutions optimized for real-world field deployment, initially targeting defense and aerospace applications. On October 9, 2025, Q-CTRL's Ironstone Opal, a ruggedized quantum sensor system designed for navigation in GPS-denied environments, was named one of TIME magazine's Best Inventions of 2025, recognized for its ability to provide precise positioning data where traditional navigation systems fail. Market positioning: critical infrastructure provider in quantum computing stack, expanding into defense quantum sensing with major DARPA backing.
Q.ANT
Q.ANT develops photonic quantum computing technologies and quantum photonics components for quantum information processing, quantum sensing, and quantum communication applications, leveraging advanced photonic integration and quantum optics to create practical quantum systems for commercial and research applications.
Qblox
Qblox is a Dutch quantum control hardware company founded in 2019 as QuTech spinoff, developing 'Cluster' modular control stacks. Series A: $26M led by Quantonation and Invest-NL Deep Tech. November 2025: DOE announced partnership with Fermilab to coordinate manufacturing and distribution of QICK (Quantum Instrumentation Control Kit) open-source platform. Selected for DARPA QBI alongside Keysight, Quantum Machines, and Zurich Instruments. November 2025: Partnered with QuantWare and Q-CTRL to launch Quantum Utility Block (QUB) pre-integrated superconducting system. February 2025: Joint research with QphoX and Rigetti published in Nature Physics - demonstrated superconducting qubit readout using optical transducer. 146 employees. Hardware-agnostic Cluster stack supports thousands of qubits across multiple qubit types.
QDI Systems
QDI Systems is a Dutch deep tech startup founded in 2019 by physicist PhD Artem Shulga as a spin-off of the Zernike Institute for Advanced Materials at University of Groningen, the first company in the world to apply quantum dots technology to medical imaging including X-rays and mammography screening. QDI Systems announced €5 million Series A funding in January 2024 led by NOM (Investment and Development Agency for Northern Netherlands), joined by Carduso Capital, RuG Ventures, and Maki.vc, plus €1.97 million innovation loan from Netherlands Enterprise Agency (RVO). In February 2025, QDI Systems received €2.5 million grant from European Innovation Council (EIC) for X-ray and shortwave infrared (SWIR) applications, with total available funding up to €7.5 million. QDI Systems' quantum dots offer higher image quality with significantly lower radiation doses compared to conventional technologies. Quantum dots are solution-processable semiconductor nanoparticles efficiently converting photons into electronic signals for medical imaging applications.
QDIR
QDIR (Quantum Dot Infrared) is a Chicago-based quantum imaging startup incorporated in 2020 by Matthew Ackerman and Professor Philippe Guyot-Sionnest from the University of Chicago. The company develops infrared imaging arrays using silicon microchips coated with mercury telluride quantum dots, creating cost-effective high-performance infrared detectors and cameras. QDIR's quantum dot nanomaterial technology enables short-wave infrared imaging at significantly lower costs compared to traditional infrared detector technologies. The company joined Chain Reaction Innovations' Cohort 4 at Argonne National Laboratory in June 2020, a two-year entrepreneurship program supporting early-stage quantum and energy technologies. QDIR's colloidal quantum dot image sensors target applications in defense, industrial inspection, autonomous vehicles, medical imaging, and scientific research where infrared imaging capabilities are critical but traditional technologies are cost-prohibitive.
Qilimanjaro
Qilimanjaro Quantum Tech is a Barcelona Supercomputer Center spinout founded in 2019 that develops quantum computing solutions combining quantum annealing and gate-model quantum computing approaches, creating hybrid quantum-classical systems that can solve optimization problems and quantum simulations for industries including finance, logistics, and materials science, leveraging Spain's supercomputing expertise and European quantum initiatives to advance practical quantum computing applications with focus on near-term quantum advantage in optimization and simulation problems. In September 2025, Qilimanjaro announced a strategic partnership with Qblox, a Netherlands-based quantum control hardware company, to integrate Qblox's control electronics with Qilimanjaro's superconducting quantum processors, enabling enhanced scalability and performance for their quantum computing systems through advanced control and readout capabilities. In October 2025, Qilimanjaro joined the IMPAQT UA cooperative consortium as the first analog quantum computing company, focused on building interoperable and scalable quantum systems through collaborative research and development with other European quantum technology organizations. In October 2025, Qilimanjaro Quantum Tech and QURECA signed a collaboration agreement for quantum education, including workshops on analog and hybrid quantum computing with hands-on access to Qilimanjaro's platform to advance quantum computing education and workforce development. 2025 Developments: In October 2025, pioneered QiliSDK, an open-source Python framework.
QphoX
QphoX develops quantum transduction systems (microwave-to-optical conversion) - critical components for quantum networking and quantum data centers. November 2025: Selected by EIC for €10M ($11.5M) equity investment under STEP Scale-Up scheme to strengthen European quantum supply chain. September 2025: Rigetti collaboration awarded $5.8M AFRL contract for superconducting quantum networking. October 2025: Launched Meet-Q project with Welinq and Sorbonne University for optical quantum interconnects. May 2025: NQCC grant with Rigetti to scale optical qubit readout system for 9-qubit Novera QPU. February 2025: Nature Physics publication with Rigetti and Qblox - breakthrough superconducting qubit readout using optical transducer via fiber optics. Part of Quantum Datacenter Alliance with Cisco, Nu Quantum, OQC, Quantinuum.
Qruise
Qruise is a German quantum control software company founded in 2018 as a Forschungszentrum Jülich spinoff that develops machine learning-powered software for quantum device development, creating 'digital twin' simulators and automated optimization algorithms that replace manual work traditionally done by quantum physicists, with strategic partnerships with Quantum Machines and Zurich Instruments to integrate their ML Physicist software into quantum control systems for automated qubit tune-up, gate optimization, and device characterization across superconducting and Rydberg atom quantum platforms.
QTLabs
Quantum Technology Laboratories (qtlabs) is a Vienna-based spinout from the Austrian Academy of Sciences founded in 2017 by Dr. Thomas Scheidl, Dr. Fabian Steinlechner, and Dr. Rupert Ursin to commercialize scientific research in optical and quantum space communication. qtlabs is the only company to develop telescopes with quantum receivers and satellite tracking software designed for unbreakable quantum communication. The company specializes in Quantum Key Distribution (QKD) systems for terrestrial networks and satellites, with customers including the EU Commission, satellite companies, and critical infrastructure operators. qtlabs won the PHÖNIX Spin-off Award 2023 from Austria Wirtschaftsservice and has over 30 employees. In 2023, qtlabs joined European collaborators developing global quantum internet enabled from space. The company provides consulting services and concept studies for quantum communication applications.
Quan2D Technologies
Quan2D Technologies is a Bengaluru-based quantum hardware company selected for support under India's National Quantum Mission by the Department of Science and Technology (DST). The company specializes in developing superconducting nanowire single-photon detectors (SNSPDs) for quantum communication, quantum computing, and quantum sensing applications. Quan2D's SNSPDs are critical components enabling quantum key distribution, satellite-based secure quantum communications, and multi-node quantum networks. The company contributes to India's goal of developing satellite-based secure quantum communications between ground stations over 2000 km within India, long-distance secure quantum communications with other countries, and inter-city quantum key distribution networks with quantum memories.
Quanfluence
Quanfluence is a Bengaluru-based quantum technology startup founded in 2021 by Sujoy Chakravarty, Aditi Vaidya, Biman Chattopadhyay, Gopal Krishna Nayak, Ravi Mehta, and Anil Prabhakar. The company develops photonics-based quantum solutions including single photon detectors, advanced computing hardware, Ising machines, and qubits quantum computers. Quanfluence's Optical Ising Machine addresses problems modeled using variables and dependencies, while their continuous-variable (CV) photonic quantum computer with 1000s of qubits is designed to tackle complex problems beyond classical computers. The company raised $2 million in seed funding led by Pi Ventures, with participation from Golden Sparrow and Reena Dayal of the Quantum Ecosystems and Technology Council of India (QETCI). Quanfluence's vision is to build a general-purpose, fault-tolerant quantum computer for solving real-world, meaningful problems.
Quanterro Labs
Quanterro Labs is an Abu Dhabi-based startup that focused on single-photon-based technologies, cryptography, and communications systems. The company may be inactive as of 2024 based on limited recent activity. Quanterro Labs represented early efforts in the UAE to develop quantum photonic technologies for security applications, part of the region's broader investment in quantum technology capabilities and infrastructure.
Quantinuum
Quantinuum (Honeywell Quantum Solutions + Cambridge Quantum merger) is pursuing the first universal fault-tolerant quantum computer. In September 2025, raised $600 million at $10 billion pre-money valuation led by Quanta Computer, NVentures (NVIDIA VC), and QED Investors. Also JPMorganChase, Mitsui, Amgen, Cambridge Quantum Holdings, Serendipity Capital, Honeywell. Previous round: $300 million at $5B valuation (January 2024). November 2025: Launched Quantinuum Helios with 98 barium ion qubits (upgraded from 56 ytterbium), achieving approximately 99.92% two-qubit gate fidelity. Helios supports up to 48 fully error-corrected logical qubits at 2:1 encoding rate. Switched from ytterbium to barium ions enabling visible-light laser manipulation (improved cost, component lifetime, scalability). Integrated NVIDIA GB200 for real-time error decoding with 'on the fly' error correction capability. Early adopters: SoftBank, JPMorgan Chase, Amgen (biologics research), BMW (fuel cell research). Selected for DARPA Stage B of Quantum Benchmarking Initiative (up to $15M funding). Strategic partnerships: NVIDIA (founding collaborator for Accelerated Quantum Research Center), Singapore National Quantum Office (Helios installation 2026), Qatar Invest Qatar (Middle East expansion May 2025), RIKEN, SoftBank, Infineon, STFC Hartree Center. Market positioning: most accurate commercial general-purpose quantum computer with industry-leading gate fidelities.
Quantistry
Quantistry is a Berlin-based quantum chemistry startup founded in 2018 by Dr. Marcel Quennet, Dr. Vincent Pohl, Arturo Robertazzi, and Stefan Kupferberg as a spin-off from Freie Universität Berlin. The company developed QuantistryLab, a cloud-based holistic computational platform integrating quantum technologies, physics-based simulations, and machine learning for chemical R&D and materials discovery. In March 2024, Quantistry secured €3 million in funding led by Ananda Impact Ventures, with co-investors including Chemovator (BASF's business incubator), IBB Ventures, and a Family Office. The platform leverages quantum-based simulations, multiscale modeling, and AI-driven insights to accelerate the discovery and design of innovative sustainable materials including next-generation batteries, polymers, alloys, and carbon capture technologies. QuantistryLab provides access to over 100 million molecular and material structures where users can run their own quantum chemistry simulations combining expert knowledge and computing power in a complete cloud package, serving pharmaceutical, chemical, and materials science industries.
QuantLR
QuantLR is an Israeli quantum technology startup founded in 2018 developing quantum sensing and photonic technologies. The company focuses on quantum sensors for precision measurement, quantum imaging, and quantum-enhanced detection systems. QuantLR develops photonic quantum technologies including quantum light sources and quantum detectors for scientific and industrial applications. The company serves defense, aerospace, medical imaging, and scientific research sectors requiring quantum-enhanced sensing capabilities. QuantLR collaborates with research institutions and industry partners advancing quantum sensing technology commercialization. The company represents Israel quantum technology ecosystem contributing to quantum sensing and quantum photonics advancement for practical applications requiring ultra-precise measurements and quantum-enhanced detection capabilities.
Quantopticon
Quantopticon develops the world's first state-of-the-art software for modeling quantum photonic components called Quantillion. Founded by mother-daughter duo Gaby Slavcheva (Chief Scientific Officer) and Mirella Koleva (CEO), the company creates advanced software with a patent-pending algorithm for precise quantum electrodynamics. Quantillion allows hardware engineers to build optimized, highly performant quantum-photonic components and integrated circuits, shortening the optimization process from 26 weeks to 2 weeks and decreasing costs by 90%. The methodology underlying Quantillion was developed over 20 years of patent-pending research. Funding includes Innovate UK grants and partnerships with Universities of Cambridge and Oxford. Participated in Duality quantum accelerator and Creative Destruction Lab.
Quantum Computing Inc
Quantum Computing Inc (QCI) specializes in thin-film lithium niobate (TFLN) photonic quantum computing and is publicly traded on NASDAQ (QUBT). The company raised massive capital in 2025: $500M in Q3 plus $750M after quarter end, totaling >$1.5 billion liquidity. Q3 2025 earnings beat expectations with EPS improving from -$0.06 to +$0.01 and revenue of $384k (+280% YoY). Stock rose to ~$27 in November before correction. December 2025: Building Arizona TFLN Fab 1 (final commissioning, production starting Q2 2025) with pilot program for early adopter sales. POET Technologies partnership aims for breakthrough 3.2 Tbps data-transfer speeds using advanced TFLN technology for co-packaged optics and AI connectivity. Upcoming Neurawave product targeting high-performance computing industry. Deep NASA collaboration with fifth task order for quantum remote sensing and LiDAR climate missions, plus contracts for phase unwrapping using Dirac-3 quantum optimization platform. First U.S. commercial sale of quantum cybersecurity to top-5 bank. Institutional investors include Sassicaia Capital, Ensign Peak, XTX Topco, Rockefeller Capital, Geode Capital. Analyst rating: Strong Buy with $23.67 average price target (+84% upside). Focus: vertically integrated photonic quantum platform, government relationships, and optical networking.
Quantum Computing Inc. Photonic Foundry
Quantum Computing Inc. operates a quantum photonic chip manufacturing facility in Tempe, Arizona, producing Thin Film Lithium Niobate (TFLN) chips for quantum computing, machine learning, and sensing applications. The company's photonic foundry represents critical infrastructure for developing integrated quantum photonic systems. By combining quantum photonics fabrication with quantum computing systems development, QCI aims to accelerate commercialization of photonic quantum technologies for entropy computing and photonic optimization applications.
Quantum Fabrix
Quantum Fabrix (trading as QFX) is a University of Oxford spinout incorporated in 2024, founded by Dr Joe Goodwin (CTO), Dr Laurent Stephenson (CSO), and Dr Peter Drmota (CIO). The company is headquartered at Begbroke Science Park and builds on world-leading trapped ion quantum computing research from the University of Oxford. In October 2025, QFX raised £2 million (€2.2M) in seed funding led by renowned Silicon Valley investor and Y Combinator co-founder Paul Graham. The company already has a commercially available product: a compact, high-performance atomic source designed to support integration across quantum platforms. QFX provides modular quantum hardware for trapped ion systems, supplying precision modules to build and link devices for quantum computing, sensing, and secure communications. The company is developing the first scalable networked quantum computing architectures, combining individual trapped ions with optical microcavities. Associate Professor and ERC Laureate Dr Joe Goodwin leads the technical vision while his co-founders bring deep expertise from Oxford's quantum research programs.
Quantum Generative Materials
GenMat is a vertically integrated materials engineering company that leverages quantum-ready AI and machine learning for materials discovery. The company developed ZENO, a proprietary physics-based AI platform for high-throughput materials discovery that simulates tens of thousands of new material properties with over 98% accuracy, dramatically accelerating R&D timelines in semiconductors and advanced materials industries. GenMat raised $15 million from Comstock Inc. and was acquired by Comstock in October 2024.
Quantum Machines
Quantum Machines is the leading quantum control systems provider, used by more than 50% of all quantum computing companies worldwide. February 2025: Raised $170M Series C led by PSG Equity with Intel Capital and Red Dot Capital. Total funding now $280M. ~200 employees across Israel, Denmark, Germany with further expansion planned. November 2025: Launched OPX1000 advanced control system. DARPA QBI selection. Hosted AQC25 conference in Boston with MIT, Yale, Google Quantum AI. May 2025: Partnered with Alice & Bob and Bluefors on $50M Paris quantum lab. Collaborates with NVIDIA on DGX Quantum for real-time quantum-classical integration. OPX1000 co-located at Israeli Quantum Computing Center with Rigetti Novera QPU and NVIDIA Grace-Hopper servers. Control systems scale to tens of thousands of qubits for error correction.
Quantum Optics Jena GmbH
Quantum Optics Jena is a Fraunhofer IOF spin-off specializing in entangled photon pair sources, polarization analyzers, and QKD systems for secure communications. The company completed a seven-figure euro seed funding round in 2021 to commercialize quantum photonic components. Quantum Optics Jena provides the Elvis QKD system for both fiber network and satellite quantum communication applications, offering complete solutions from photon sources to encryption systems for quantum-safe communications infrastructure.
Quantum Science Center (QSC)
The Quantum Science Center (QSC) is a U.S. Department of Energy National Quantum Information Science Research Center led by Oak Ridge National Laboratory. QSC focuses on developing quantum-accelerated high-performance computing capabilities. November 2025: DOE renewed QSC funding with $125 million over five years to develop open-source software for quantum-classical workflows and advance quantum materials and algorithms. QSC partners include multiple national laboratories, universities, and industry leaders working to integrate quantum computing with classical supercomputing for scientific discovery.
Quantum Source Labs
Quantum Source Labs is an Israeli quantum computing company founded in 2021 developing scalable photonic quantum computers. The company focuses on deterministic single-photon sources addressing major bottleneck in photonic quantum computing enabling large-scale quantum processors. Quantum Source raised $50 million Series A funding in 2023 led by Eclipse Ventures with participation from Insight Partners and others. The company technology enables generation of on-demand indistinguishable single photons critical for photonic quantum computing scalability. Quantum Source serves quantum computing industry developing next-generation photonic quantum processors for computational applications requiring quantum advantage. The company collaborates with quantum research institutions and industry partners advancing photonic quantum computing technology and contributing to Israel quantum technology leadership.
QuantumHispano
QuantumHispano is a Spanish-speaking quantum computing community founded in 2020 and based in Mexico City, creating Spanish-language resources for quantum computing education for approximately 450 million native Spanish speakers globally. The organization is classified as an IT Services and IT Consulting community with specialties in quantum computing, quantum physics, mathematics, physics, quantum machine learning, quantum architecture, quantum technologies, quantum optics, quantum software, quantum solutions, and quantum education. QuantumHispano breaks down language barriers holding back quantum computing progress in Spanish-speaking countries, addressing the challenge that most quantum computing resources are available only in English. The initiative plays an important role in making quantum computing accessible across Latin America and Spain, popularizing quantum technologies and providing educational materials in Spanish for students, researchers, and professionals pursuing quantum careers.
QuantumLeap AI
QuantumLeap AI develops quantum machine learning software and AI-powered quantum algorithm optimization tools. The company combines quantum computing with classical AI to create hybrid systems for complex data analysis and pattern recognition. QuantumLeap AI's platform provides tools for quantum neural network development, quantum feature extraction, and quantum-enhanced AI model training. Target applications include drug discovery, materials science, and financial modeling where quantum machine learning can provide advantages. Based in London, QuantumLeap AI collaborates with AI researchers and quantum computing companies. The company focuses on practical quantum machine learning applications deliverable on near-term quantum hardware. QuantumLeap AI offers both software tools and consulting services for quantum AI development.
QuantX Labs
QuantX Labs develops quantum optical atomic clocks including TEMPO, offering up to 10x performance improvement over GNSS-based systems in a compact package suitable for land or space deployment. In partnership with the University of Adelaide, QuantX will launch the first orbital demonstration of an optical frequency comb component via SpaceX in December 2025, supported by a $3.7 million grant from the Australian Space Agency's Moon to Mars initiative. The company focuses on space-grade quantum timing solutions for navigation and communications.
QUDORA
QUDORA is a German quantum computing developer specializing in trapped-ion quantum computers using Near-Field Quantum Control (NFQC) technology. The company's flagship NFQC technology relies on ions confined in electromagnetic traps and manipulated with finely tuned laser pulses, enabling room-temperature operation that reduces infrastructure costs compared to superconducting circuits requiring millikelvin temperatures. QUDORA's compact, scalable architecture allows dozens of ions to be entangled in a single chip-scale module to create fault-tolerant quantum processors capable of running complex algorithms in minutes with cloud-based workflow compatibility. In September 2025, QUDORA announced a strategic collaboration with South Korean research institutions and technology partners to establish quantum computing research centers in Seoul and Daejeon, focusing on quantum applications for advanced materials, battery technology, and semiconductor manufacturing, positioning South Korea as a key market for QUDORA's Asia-Pacific expansion strategy. In October 2025, QUDORA closed a strategic partnership with Kensho, a Taiwanese distributor, to accelerate quantum computing commercialization in Taiwan, combining QUDORA's trapped-ion platform with Kensho's deep ties to Taiwan's precision-manufacturing sector to bring quantum-enhanced tools into laboratories, factories, and corporate data centers across Asia-Pacific. The alliance generated significant attention at SEMICON Taiwan 2025, targeting applications in semiconductor design, pharmaceutical research, and industrial optimization while expanding QUDORA's presence beyond Europe into the strategically important Asia-Pacific market.
Queensgate Nanopositioning
Queensgate manufactures piezo actuators with capacitance feedback for precision motion control and nanopositioning in quantum applications. The Torquay company provides closed-loop positioning systems. Queensgate's high-precision actuators enable nanometer-scale positioning for quantum optics experiments, quantum device manufacturing, and scientific instrumentation requiring ultra-stable positioning.
QuEra Computing
QuEra Computing develops neutral atom quantum computers based on research from Harvard (Mikhail Lukin), MIT (Vladan Vuletic, Markus Greiner). In February 2025, raised $230 million led by Google Quantum AI and SoftBank Vision Fund 2 (previous: $47M October 2024), bringing total funding to $277M+. November 2025: QuEra selected for DARPA Stage B of Quantum Benchmarking Initiative (up to $15M funding), advancing toward utility-scale quantum computing by 2033. The company expanded QuEra Quantum Alliance membership and demonstrated improved neutral atom qubit performance. 2025 Developments: Google Quantum AI's strategic investment validates neutral atom technology approach. Technology uses rubidium neutral atoms controlled by lasers with advancing quantum error correction capabilities. Partnership with Massachusetts Green High Performance Computing Center ($16 million expansion). Algorithmiq joined QuEra Quantum Alliance (December 2024). Focus on building fault-tolerant technology and expanding global partnerships.
Quinas Technology
Quinas Technology is a Lancaster University spinout developing ULTRA RAM, a revolutionary quantum-enhanced computer memory technology for AI and secure computing applications. The company became the first UK company to win a 2025 World Intellectual Property Organisation (WIPO) Global Award. Quinas Technology showcased its breakthrough memory technology at the UK National Quantum Technologies Showcase in November 2025. ULTRA RAM combines the speed of traditional RAM with the non-volatility of flash memory, enabled by quantum mechanical effects in novel semiconductor structures. The technology has potential applications in AI accelerators, secure computing, and next-generation data centers where energy efficiency and data persistence are critical requirements.
QuinStar Technology
QuinStar Technology manufactures cryogenic isolators, circulators, arrays, and amplifiers for millikelvin-range quantum computing applications with high-performance broadband components. The California company provides microwave components. QuinStar's cryogenic RF components enable signal routing, amplification, and isolation in quantum computing systems operating at ultra-low temperatures.
QULABS
Qulabs is a Hyderabad-based quantum computing company founded in 2018 providing AI-powered quantum computing solutions. Notable for creating India's first room temperature quantum memory operating at single photon level. Offers quantum simulator, memory devices, and QSDC protocols.
Quoherent
Quoherent is a pioneering quantum computing startup developing room-temperature quantum qubits using topological materials. The company raised $4.7M in funding led by Morpheus Ventures with participation from Draper Associates, Khosla Ventures, and Alpha Edison. Quoherent's technology represents a 'third-wave' approach to quantum computing, departing from conventional cryogenic requirements to enable the realization of mobile quantum computing solutions. Founded by Roberto DiSalvo (CEO), Alton Reich (COO), and David Carroll (CTO), the company is the result of a decade-long research collaboration with the Wake Forest Center for Nanotechnology and Quantum Materials. Quoherent's mission is to deploy the world's first high-fidelity, scalable quantum processors on mobile platforms by harnessing unique properties of topological materials for stable and scalable qubits that operate at room temperature.
QuPrayog
QuPrayog is a Pune-based quantum technology startup founded in August 2024 as a spinout from the Indian Institute of Science Education and Research (IISER) Pune, co-founded by Dr. Rahul Sawant (faculty fellow at I-Hub Quantum Technologies Foundation) and Dr. Jay Mangaonkar (postdoctoral fellow at IISER Pune). The company develops advanced quantum sensing and metrology equipment, specializing in portable optical atomic clocks, Titanium Sapphire Laser systems, and optical frequency combs that offer order-of-magnitude improvements over radio-frequency atomic clocks. QuPrayog was selected as one of eight startups for support under India's National Quantum Mission and the National Mission on Interdisciplinary Cyber-Physical Systems, chosen following a competitive process by I-Hub Quantum Technology Foundation. The company focuses on advancing quantum timing, precision measurements, and quantum sensing technologies for applications in navigation, telecommunications, scientific research, and critical infrastructure requiring ultra-precise timing and frequency standards, contributing to India's strategic quantum technology development and self-reliance in quantum sensing capabilities.
QuSpin
QuSpin develops optically pumped magnetometers (OPM) for biomedical and geophysical applications, offering the first non-cryogenic replacement for superconducting magnetometers. Founded by Dr. Vishal Shah (PhD in atomic physics from University of Colorado Boulder), the company was established with NIH research funding. QuSpin's wearable OPM systems enable magnetoencephalography (MEG) for detecting neural activity without requiring cryogenic cooling. Their technology brings quantum sensing to practical field applications in brain imaging and resource exploration. QuSpin has established itself as a leader in compact, room-temperature quantum sensors with deployment across medical and scientific research facilities.
QustomDot
QustomDot is a Ghent University spinoff (January 2020) developing cadmium-free quantum dot inks and resins for microLED displays, converting blue LED light to red/green. November 2024: Secured €2.7M financing round from PMV (Flemish investment), QBIC, Vigo Ventures, Noshaq, and EIC Fund. Total raised: $9.2M (€4.8M venture capital + €5.2M grants including €2.5M EIC Accelerator grant with access to €3.5M equity facility). 2024-2025: Started product sampling with top microLED manufacturers in Taiwan. 5 active industry partnerships established. Plans to engage advanced display manufacturers globally in 2025. MicroLED display market projected to reach $27B by 2027. Technology enables high-quality quantum dots with precise optical property control for quantum light sources, single-photon emitters, and next-generation display technology.
Qutools
qutools is a Munich-based company specializing in quantum optics instrumentation and photonic quantum technology equipment. The company manufactures single-photon detectors, quantum random number generators, and complete quantum optics setups for research and education. qutools provides essential instrumentation for quantum physics laboratories and quantum technology development worldwide.
RadiaBeam Technologies
RadiaBeam Technologies is a Santa Monica, California-based company founded in 1999, specializing in advanced particle accelerator technologies with applications in quantum computing research. The company develops superconducting radio-frequency (SRF) cavities and related components that have applications in quantum computing hardware, particularly for qubit cavity development and quantum sensing. RadiaBeam has received funding from the Department of Energy and works with national laboratories on advanced accelerator physics research. The company's expertise in precision electromagnetic systems and cryogenic technologies contributes to quantum hardware development efforts. 2025 Developments: The company continues to advance its quantum-relevant hardware capabilities in 2025, focusing on SRF cavity technologies and precision electromagnetic components for quantum computing applications.
Radiall
Radiall is a global manufacturer of interconnect solutions that has developed specialized cryogenic components for quantum computing applications. The company launched the F2C-40 Floating Cryogenic Cluster, a 40-pin high-density multi-coaxial solution providing excellent performance up to 18GHz in cryogenic environments for high qubit quantum computing devices. Radiall participates in France's QRYOLink R&D program (€8M budget, 54-month duration) supported by the French government, collaborating with Alice & Bob, cryostat manufacturers, and qubit developers. Their comprehensive quantum interconnect offering includes RF connectors, cable assemblies, attenuators, switches, and fiber optics. Radiall operates facilities in Grenoble, France's quantum hub.
ReactiveQ
ReactiveQ is a Toronto-based developer of a quantum computing platform designed to predict how materials will behave under different conditions and in combinations with other materials. Founded in 2018, the company's platform offers hyperrealistic, multiphysics, quantum-backed simulations and provides a suite of software tools that assist in the CAE (Computer-Aided Engineering) process for engineers and physicists working on compute-intensive simulations. ReactiveQ uses AI/ML to derive a competitive advantage for solving industry-scale problems, developing machine learning software for materials simulation and design that enables compatibility with quantum computing. The company focuses on revolutionizing the materials discovery process through its expertise in the technology sector, serving R&D teams in pharmaceuticals, materials science, and engineering.
Redwire Corporation
Redwire Corporation is a space infrastructure company headquartered in Jacksonville, Florida, founded in 2020, specializing in space systems and components. In September 2025, Redwire signed a Memorandum of Understanding with Honeywell to advance the QKDSat project, combining Redwire's quantum platform technology with Honeywell's quantum optical payload to create fully functional quantum-secured satellite communications systems by mid-2026. The QKDSat consortium, led by Honeywell and including Redwire, aims to develop ultra-secure telecommunications satellites using quantum key distribution for government, defense, and commercial applications. The project is backed by the European Space Agency and aims to protect critical infrastructure from cyber threats using quantum encryption. Redwire brings deep space hardware expertise and satellite bus platform development to enable quantum-safe communications from orbit for government agencies, defense contractors, telecommunications operators, and critical infrastructure sectors.
RF Com CryoCoax
RF Com manufactures high-density microwave interconnects for quantum computers with SMPM connectors at 4.75mm pitch enabling 120 lines on ISO 100 plate. The Abingdon company specializes in cryogenic RF. RF Com's CryoCoax high-density interconnect solutions address the wiring bottleneck in scaling quantum computers, enabling thousands of control and readout lines in compact dilution refrigerator spaces.
RobQuant
RobQuant is a UK quantum technology startup that emerged from the Quantum Engineering Technology lab at the University of Bristol. Founded by Dr. Joe Smith, the company develops robotic systems designed to operate in the harsh conditions necessary for quantum experiments, including low temperatures and atomic-scale interactions. RobQuant's precision robotic arms enable automated manipulation and positioning in quantum sensing experiments, drawing inspiration from surgical robotics to overcome the constraints of quantum laboratory environments. The company focuses on quantum microscopy applications and micro-robotics for precision quantum research.
Rogers Communications
Rogers Communications Inc. is a Canadian communications and media company founded in 1960, headquartered in Toronto, Ontario. Rogers explores quantum technologies including quantum-safe security for telecommunications networks and quantum communications research. The company collaborates with Canadian quantum technology companies and research institutions exploring quantum networking capabilities. Rogers investigates post-quantum cryptography preparing telecommunications infrastructure for quantum computing threats. The company serves Canadian telecommunications markets including wireless cable and media services for consumers and businesses. Rogers contributes to Canadian quantum technology ecosystem supporting quantum communications research and quantum-safe security development for telecommunications infrastructure advancing quantum technology adoption in Canadian telecommunications sector protecting network security against emerging quantum computing threats.
Rohde & Schwarz
Rohde & Schwarz (in partnership with Zurich Instruments) provides complete quantum computing control solutions with signal analyzers, AWGs, and signal generators, with Zurich's QCCS controlling 100+ qubits. The German test and measurement company combines its RF and microwave instrumentation expertise with Zurich Instruments' quantum control systems. Together they provide comprehensive quantum control electronics from signal generation to measurement, enabling researchers and quantum computing companies to build scalable control systems for large quantum processors.
Rosenberger Cryogenic Quantum
Rosenberger manufactures RF and mechanical components for cryogenic quantum technology including coax-sticks and sample pucks for dilution refrigerators. The Tittmoning company provides RF interconnects. Rosenberger's specialized cryogenic RF components enable signal transmission between room temperature electronics and quantum processors operating at millikelvin temperatures in dilution refrigerators.
Russian Quantum Center
Russian Quantum Center (RQC) is an independent research organization established in 2012 dedicated to advancing quantum physics and practical applications, with more than 170 researchers working across 12 laboratories near Moscow. RQC focuses on quantum computing, simulation, communication, and sensing while developing and commercializing quantum-based technologies and devices. In December 2024, RQC and Lomonosov Moscow State University unveiled Russia's first 50-qubit quantum computer prototype using rubidium neutral atoms trapped with optical tweezers. Rosatom CEO announced completion of 50-qubit ion-based quantum computer with plans to scale to 75 qubits by 2025 as part of roadmap to surpass classical supercomputers by targeting 2030. RQC spun off QRate, developing fiber-optic quantum key distribution (QKD) systems approaching commercial readiness. The center operates under Russia's $790 million government-backed quantum computing initiative coordinated by Rosatom, developing multiple quantum computing platforms for Russia's national quantum strategy.
S-Fifteen Instruments Pte Ltd
S-Fifteen Instruments is a Singapore company developing quantum communication devices including quantum random number generators and QKD systems. The company manufactures QRNG hardware, QKD equipment, and quantum optics components for quantum communication networks. S-Fifteen Instruments serves the growing quantum communications market in Asia-Pacific, providing quantum hardware components for secure communications infrastructure and quantum networking applications.
Sacher Lasertechnik
Sacher Lasertechnik GmbH is a German manufacturer and technology leader specializing in high-power tunable external cavity diode lasers for scientific and industrial applications. Founded by Dr. Joachim R. Sacher, one of the pioneers of diode lasers with external cavity, the company evolved from a university spin-off to a globally recognized technology leader over 30 years. Sacher Lasertechnik offers a comprehensive portfolio of laser product families based on patented technology for applications in quantum technology, general research, spectroscopy, metrology, environmental science, biomedicine, space technology, and process control. The company's sub-kHz tunable diode lasers are specifically designed for advanced quantum applications, making them essential suppliers to quantum computing research labs and quantum sensing projects worldwide. Based in Marburg, Germany, Sacher Lasertechnik celebrated its 30th anniversary in 2022, demonstrating sustained innovation in laser technologies for quantum and photonics applications.
SAES Rial Vacuum
SAES Rial Vacuum specializes in designing, modeling, manufacturing, and testing advanced integrated vacuum systems for accelerators, quantum computing, and industrial applications. Originally founded as RIAL VACUUM RESEARCH in Parma in 1973, the company was reconstituted as SAES Rial Vacuum in 2015 and acquired by SAES Getters in October 2021, becoming fully integrated into the SAES Group in 2022. The company produces custom ultra-high vacuum chambers and components for quantum computing applications, leveraging decades of expertise in the ultra-high vacuum and cryogenic field. SAES Rial Vacuum operates a 1200 m² facility in Parma producing quantum chambers and UHV systems for leading scientific institutions.
Sandia National Laboratories
In August 2024, scientists at Sandia National Laboratories, collaborating with Arizona State University, received $17 million in funding from Sandia's Laboratory Directed Research program to develop compact integrated microsystems that carry quantum information using light, scaling down large-scale optical systems to chip size for applications in advanced computing and secure communications. Researchers are fabricating small photonic integrated circuits (PICs) at Sandia's MESA complex to achieve the same capabilities as large optical tables. Sandia is participating in the Quantum Collaborative and serves as a core partner of the Southwest Advanced Prototyping Hub (SWAP Hub), led by Arizona State University, aiming to jumpstart American competitiveness in the semiconductor industry. In January 2024, the University of New Mexico and Sandia National Laboratories partnered to establish the Quantum New Mexico Institute (QNM-I), aiming to make New Mexico a national hub for quantum science and attract global talent and quantum companies.
SBQuantum
SBQuantum is a Canadian quantum sensing company founded in 2017 that develops quantum magnetic sensors and magnetometry systems using optically pumped magnetometers and diamond NV centers for ultra-sensitive magnetic field detection, providing quantum sensors for geophysical surveys, medical diagnostics, security screening, and fundamental physics research applications that require femtotesla-level magnetic field sensitivity, serving research institutions, mining companies, and security organizations with quantum magnetometers that can detect buried objects, monitor brain activity, and measure weak magnetic signals in challenging environments where traditional sensors lack sufficient sensitivity.
SDT
SDT Inc. (Quantum Standard Technology) is a South Korean quantum technology company founded in 2017 with headquarters in Seoul, pioneering quantum computing, quantum cloud, quantum communication, and quantum sensing commercialization. Founded by CEO Jiwon Yune, who studied physics and electronic engineering at MIT and worked as a researcher at MIT-Harvard University Research Center and KIST Quantum Information Research Center, SDT is leading development of South Korea's first full-stack quantum computer. In August 2024, SDT secured 10 billion KRW (approximately $7.5 million USD) in Pre-IPO investment from Shinhan Venture Investment to commercialize quantum computers, with milestones to develop a 64-qubit superconducting quantum computer by 2026 and photonic integrated circuit quantum computers by 2027. SDT is jointly developing quantum processing units based on silicon spin and diamond nitrogen-vacancy quantum technologies with Seoul National University and the Korea Institute of Science and Technology. The company is advancing South Korea's National Strategy for Quantum Technology and building the domestic quantum ecosystem.
SHI Cryogenics
SHI Cryogenics Group is a leading worldwide provider of innovative cryogenic and vacuum solutions, operating as an integral part of the Precision Equipment Division of Sumitomo Heavy Industries, Ltd. The company was formed through SHI's acquisition of IGC-APD Cryogenics, Inc. in 2002, bringing together two of the world's leading cryogenic companies. Headquartered in Allentown, Pennsylvania with manufacturing facilities in Tanashi, Japan; Allentown, Pennsylvania; and Batangas, Philippines, SHI Cryogenics serves the medical, semiconductor, flat panel, general coating, and research industries. The company's cryogenic equipment provides ultra-low temperature solutions critical for quantum computing systems, quantum sensors, and quantum research applications. SHI Cryogenics has collaborated with organizations like Quantum Design to advance quantum technologies, supplying cryogenic systems essential for maintaining the extremely cold operating environments required by superconducting qubits and other quantum devices. With decades of cryogenic engineering expertise, SHI Cryogenics is a key infrastructure provider to the quantum technology industry.
Silent Waves
Silent Waves is a Grenoble-based quantum technology company founded in 2021 as a spinout from Institut Néel, one of the largest CNRS research laboratories with expertise in quantum electronics, superconductivity, and quantum device fabrication. Co-founded by Luca Planat, Nicolas Roch (researcher at Institut Néel CNRS), and Baptiste Planat, the company develops advanced microwave signal readout technology for quantum computing, radio astronomy, and electron spin resonance applications requiring accurate detection of ultra-low power microwave signals. Silent Waves provides cutting-edge readout hardware solutions that enable accurate qubit state measurement and quantum processor operation through sophisticated microwave signal processing capabilities. The company's mission focuses on developing ultrasensitive signal processing technology for quantum readout systems while providing comprehensive expert support to customers building quantum computers and quantum sensing systems. Silent Waves is embedded in Grenoble's world-class innovation ecosystem combining outstanding science and technology with a dynamic quantum technology startup scene, leveraging the region's expertise in quantum electronics, superconducting circuits, and quantum information processing infrastructure.
SilQ Connect
SilQ Connect is a Quebec-based quantum technology startup that secured pre-seed funding to develop microwave-optical quantum interconnects, addressing key infrastructure challenges in quantum computing networks. The company specializes in developing quantum interconnect technologies that enable communication between quantum processors and quantum computing systems, focusing on microwave-optical conversion technologies essential for scaling quantum computing architectures. SilQ Connect works on quantum networking infrastructure, quantum communication protocols, and quantum system integration technologies that enable distributed quantum computing and quantum networking applications. The company contributes to Canada's quantum technology ecosystem by advancing quantum interconnect technologies and quantum networking capabilities for next-generation quantum computing systems.
Single Quantum
Single Quantum, founded in 2012 as a spin-off from TU Delft, is a European leader in Superconducting Nanowire Single Photon Detectors (SNSPDs) technology. Their flagship Eos system achieves over 90% detection efficiency, ultra-high timing resolution below 15 picoseconds, count rates exceeding 80 MHz, and dark count rates below 10 Hz. In 2025, Single Quantum partnered with CERN's Quantum Technology Initiative and Qunnect for quantum networking experiments, with CERN integrating their detectors with White Rabbit time-synchronization technology to achieve sub-nanosecond alignment of distant nodes. The company has installed photon detector systems across the United States, Europe, Canada, UK, Japan, China, Australia, Israel, and South America. Their detectors are essential for quantum key distribution (partnered with Toshiba in 2024 to extend QKD range over 300km), quantum computing readout, and quantum sensing applications requiring the highest performance single photon detection.
Singular Photonics
Singular Photonics is a manufacturer of photonic detectors for quantum computing developing on-chip photon number resolving detectors for fault tolerance in quantum computing applications. The company is backed by Qubits Ventures and specializes in creating advanced detection systems that enable more reliable photonic quantum computers. Their technology addresses critical scalability challenges in photonic quantum systems.
Spectrum Instrumentation GmbH
Spectrum Instrumentation is a German instrumentation company providing arbitrary waveform generators (AWGs) widely used in quantum computing research, particularly the M4i.66xx-series 16-bit AWGs for qubit control. The company's high-performance AWG cards enable precise control signals required for manipulating quantum states in superconducting, trapped ion, and photonic quantum computers. Spectrum Instrumentation's products are deployed in quantum research laboratories and quantum computing companies worldwide, serving as critical control electronics for quantum processors.
SpeQtral
SpeQtral is a Singapore quantum satellite communications company founded in 2017 as a spinout from the Center for Quantum Technologies. November 28, 2025: Successfully launched and deployed SpeQtre CubeSat aboard SpaceX's Transporter-15 mission. The 12U CubeSat (roughly microwave oven size) contains space-qualified entangled photon pair source and detector modules, deployed into sun-synchronous orbit. Partnership with UK Science and Technology Facilities Council's RAL Space. Will begin quantum communications experiments in early 2026 with ground stations at Centre for Quantum Technologies (Singapore) and Chilbolton Observatory (UK). Strategic partnerships: SES (interoperable optical ground stations), Thales Alenia Space, Hispasat. Part of Singapore-UK bilateral Space Technology Development Programme. Market positioning: first Singapore quantum satellite deployed, advancing space-based quantum key distribution for ultra-secure global communications with demonstrated space-qualified technology.
SPTel
SPTel is a joint venture company of ST Engineering and SP Group, serving as a leading provider of next-generation telecommunications and digital solutions in Singapore with strong focus on innovation and reliability. SPTel uses unique fiber pathways combining leased SP Group infrastructure and owned fiber pipes laid alongside power network cables, having connected 90% of Singapore's commercial data centers. In November 2022, SPTel and SpeQtral announced success on initial trials toward setting up Quantum-Secure Networks on SPTel's diverse fiber network, the first such trials in Singapore. In November 2023, SPTel and SpeQtral were jointly appointed by the Infocomm Media Development Authority of Singapore (IMDA) to build the National Quantum-Safe Network Plus (NQSN+), Singapore's first nationwide quantum-safe network. The combination of SPTel's capabilities in building diverse networks with SpeQtral's deep expertise in Quantum Key Distribution (QKD) technology advances development of robust and resilient NQSN+. SPTel serves enterprises, government agencies, data centers, and telecommunications operators requiring quantum-safe network infrastructure.
Stable Laser Systems
Stable Laser Systems is a JILA/NIST spin-out manufacturing ultra-stable laser systems for quantum computing, atomic clocks, and precision measurements. The Boulder company specializes in laser frequency stabilization. Stable Laser Systems provides ultra-narrow-linewidth laser systems with exceptional frequency stability for atomic physics experiments, trapped ion quantum computers, and quantum sensing applications.
Stanford University
Stanford University is a private research university founded October 1 1891 located in Stanford California leading in quantum research through Q-FARM uniting experts from Stanford and SLAC National Accelerator Laboratory to advance quantum information science. Stanford promotes interdisciplinary collaboration integrating efforts from physics engineering and computer science departments. Stanford research advances quantum algorithms quantum cryptography quantum control quantum error correction and quantum hardware development essential for practical quantum computers. The university conducts quantum research spanning quantum optics superconducting qubits trapped ions quantum materials and quantum sensing. Stanford has produced numerous quantum computing spinouts and maintains partnerships with leading quantum companies serving quantum research community government agencies and industry partners.
STAR Cryoelectronics
STAR Cryoelectronics manufactures SQUID sensors, readout electronics, cryogenic systems, cryogenic wires, LEMO connectors, and flexible cryo-cables for quantum applications. The Santa Fe company provides superconducting sensors and cryogenic wiring. STAR Cryoelectronics serves quantum computing and quantum sensing applications with SQUID-based measurement systems and specialized cryogenic cables and interconnects.
SteerLight
SteerLight is a spin-off from CEA-Leti based in Grenoble, France, specializing in developing next-generation LiDAR sensors for autonomous vehicles and robotics. The company leverages advanced photonics and quantum sensing technologies to create high-performance optical sensors with improved range, resolution, and reliability. SteerLight is backed by Quantonation and focuses on bringing quantum-enhanced sensing to commercial applications.
Superconducting Quantum Materials and Systems Center (SQMS)
The Superconducting Quantum Materials and Systems Center (SQMS) is a U.S. Department of Energy National Quantum Information Science Research Center led by Fermi National Accelerator Laboratory. SQMS focuses on advancing superconducting quantum technologies and materials. November 2025: DOE renewed SQMS funding with $125 million over five years to continue advancing superconducting quantum technologies. The center brings together expertise from particle physics and materials science to improve qubit coherence times and develop scalable quantum systems. Key partners include Northwestern University, Rigetti Computing, and multiple national laboratories and universities focused on superconducting quantum computing.
SV Microwave
SV Microwave is a world leader in RF/microwave industry headquartered in West Palm Beach, Florida, boasting over 50 years proven performance since founding in 1960. The company is a division of Amphenol Corporation (acquired May 1, 2005), designing and building RF interconnects used at room temperature and cryogenic temperatures for quantum computing applications. SV Microwave's non-magnetic components play key role in quantum computers, delivering high-performance reliable solutions for quantum computing, medical, and aerospace applications. Inside cryo-chambers, SV Microwave connectors and cables perform in extreme cold temperatures as low as zero degrees Kelvin with hermeticity between chandelier stages. The company provides non-magnetic RF connectors and interconnects essential for quantum processor operations, serving quantum computing manufacturers, research laboratories, and cryogenic equipment providers requiring specialized RF connectivity for quantum computers operating at ultra-low temperatures.
Symmetricom
Symmetricom, Inc. was an American company specialized in high precision timekeeping technology, acquired by Microsemi in 2013 for $230 million, which subsequently became part of Microchip Technologies Inc. Symmetricom developed products including hydrogen masers, rubidium and cesium atomic standards, temperature and oven controlled crystal oscillators, miniature and chip scale atomic clocks, network time servers, network sync management systems, cable timekeeping solutions, telecom synchronization supply units (SSUs), and timing test sets. The company launched the first commercial Chip Scale Atomic Clock (CSAC) model SA.45s in 2011, with over 100,000 units sold. The CSAC provides wide operating temperatures, fast warm-up/atomic-lock, and superior frequency stability in extreme environments. Symmetricom's innovations supported quantum computing applications requiring ultra-precise timing synchronization. Now operated under Microchip Technology, the timing solutions serve aerospace, defense, communications, and quantum computing industries.
SynthBits
SynthBits Technology is a Chicago-based quantum hardware company founded in 2024 by Berk D. Kovos, Ph.D., developing a novel quantum-bit platform based on transition metal molecular qubits. The company's proprietary qubits are optically addressable, nanometer-sized, economically mass-producible, and biochemistry-compatible. SynthBits initially targets quantum microscopy applications to provide highly sensitive multi-channel, multi-modal imaging for biological samples, accelerating advancements in medicine, diagnostics, and research. The company emerged from research at the University of Chicago's Pritzker School of Molecular Engineering and is backed by QAI Ventures Accelerator, Duality quantum accelerator, and Chain Reaction Innovations at Argonne National Laboratory. SynthBits is a corporate partner of the Chicago Quantum Exchange.
Technical University of Denmark
Technical University of Denmark (DTU) is a public technical university founded in 1829, located in Kongens Lyngby, Denmark. DTU conducts quantum research advancing quantum photonics quantum communications and quantum technologies. The university Center for Silicon Photonics advances integrated quantum photonics development. DTU researchers contribute to quantum hardware quantum networks and quantum applications. The university collaborates with Danish and European quantum companies advancing quantum technology commercialization. DTU serves quantum research community through quantum research quantum education and technology transfer supporting Danish quantum technology ecosystem and Nordic quantum innovation.
Thorlabs
Thorlabs Inc. is an American privately held optical equipment company founded in 1989 by Alex Cable in spare bedroom in Freehold, New Jersey, relocating headquarters to Newton, New Jersey, named after founder's black Labrador retriever Thor. The company designs and manufactures components, instruments, and systems for photonics industry providing portfolio of over 22,000 stocked items with custom solutions enabled by vertical integration. Thorlabs operates with approximately 2,500 employees at manufacturing and sales offices in United States, Canada, United Kingdom, Germany, France, Sweden, Japan, China, and Brazil achieving annual sales of approximately $500 million as of 2018. In 2014, Thorlabs acquired Corning Inc.'s quantum cascade lasers line expanding quantum capabilities. Thorlabs offers quantum technologies including correlated photon-pair sources using spontaneous parametric down-conversion (SPDC), single-photon detectors, and quantum optics educational kits for research and education purposes in quantum computing laboratories globally.
Times Microwave Systems
Times Microwave Systems was founded in 1948 as Times Wire and Cable Company in New York City near Times Square, relocating to Wallingford, Connecticut in early 1950s, with over 70 years industry experience designing and manufacturing high-performance coaxial cables, connectors, and assemblies. The company joined Amphenol Corporation in 2009, providing specialized RF cable solutions for rapidly-growing quantum computing sector. Times Microwave manufactures temperature-specific cables including NbTi construction superconducting cables interfacing directly with quantum processors (4K down to 4mK), and CuNi-based semi-rigid construction cables (room temp to ~4K). Product lines include M8 multiport interconnect solutions, TMQ4 and TMQ5 bundled coaxial cables, MaxGain ultra-low loss cables, StripFlex assemblies, and PhaseTrack cable assemblies. Times Microwave serves quantum computing manufacturers requiring non-magnetic cables operating in extreme cold temperatures down to -460 degrees Fahrenheit for quantum processor stability.
TOPTICA Photonics
TOPTICA Photonics is a German laser manufacturer supplying specialized diode and fiber laser modules with subkilohertz linewidths for quantum computing applications. The company provides ultra-stable narrow-linewidth lasers essential for trapped ion quantum computers, neutral atom systems, and quantum networking. TOPTICA's laser systems enable the precise optical control and manipulation of quantum states required in atomic and photonic quantum computing platforms, serving as critical components in quantum technology supply chains.
TundraSystems Global
TundraSystems Global LTD is a quantum optical computing company founded in October 2014 in Cardiff, Wales, developing a quantum photonics technology library and the TundraProcessor quantum photonics microprocessor. The company amalgamates developments from academic sources including University of Bristol, MIT, and UK Quantum Technology Hubs to develop computational solutions in an all-optical regime using the Quantum Computational Paradigm. At the heart of their TundraSystem is a 64-qubit quantum processor, functioning as a High-Performance Computing Unit (HPC Unit). TundraSystems is developing TundraQOS (Quantum Operating System), a universal quantum operating system with classical control. The company was featured in The Journal of Supercomputing's comprehensive review of scalable fault-tolerant photonic quantum computers alongside iPronics, Jiuzhang, ORCA Computing, Photonic Inc., PsiQuantum, Quandela, QuiX Quantum, TuringQ, and Xanadu. Founded by Dr. Brian Antao, Ph.D. in Computer Engineering from Vanderbilt University.
TuringQ
TuringQ is China's first optical quantum computing company established in 2021 by Professor Jin Xianmin from Shanghai Jiaotong University, specializing in photonic quantum processors using lithium niobate on insulator (LNOI) photonic chips and femtosecond laser direct writing technology, with products including the TuringQ Gen 1 fully integrated optical quantum computer and FeynmanPAQS quantum simulation software, having completed 500 million yuan ($79 million) in funding and established China's first photonic chip pilot line in Wuxi for applications in financial technology, biomedicine, and artificial intelligence.
Twinleaf
Twinleaf develops precision magnetic field sensors and magnetometers using SERF (Spin Exchange Relaxation Free) technology. Founded by Dr. Thomas W. Kornack, who pioneered SERF magnetometer development during his work at Princeton University, the company produces highly sensitive quantum sensors for biomedical applications including live magnetocardiography. Their sensors enable portable, non-cryogenic alternatives to traditional SQUID magnetometers. Twinleaf's products serve research institutions and medical applications requiring ultra-sensitive magnetic field detection. The company maintains strong research collaborations with Princeton University and offers both magnetometers and magnetic shielding solutions.
UbiQD
UbiQD is a global leader in quantum dot manufacturing and technology, headquartered in Los Alamos, New Mexico, founded in 2014 by Hunter McDaniel. The company licenses technology developed at Los Alamos National Laboratory and MIT, producing quantum dots through an alternative, inexpensive process using low-cost and nontoxic elements. UbiQD powers product innovation in agriculture, clean energy, and security. The company's UbiGro® greenhouse technology uses fluorescence to create optimal spectrum for crops. In April 2025, UbiQD closed a $20 million Series B financing round led by Phoenix Venture Partners. UbiQD established an exclusive, multi-year agreement to supply proprietary fluorescent quantum dot technology to First Solar for incorporation into thin film bifacial photovoltaic solar panels, advancing quantum dot applications in renewable energy.
University of Bristol
University of Bristol is a red brick research university founded in 1876, located in Bristol, United Kingdom. Bristol conducts world-leading quantum photonics research advancing photonic quantum computing quantum communications and quantum technologies. The university Quantum Engineering Technology Labs and Quantum Engineering Centre for Doctoral Training advance quantum hardware development. Bristol has produced quantum technology spinouts including PsiQuantum and Orca Computing. The university serves quantum research community through quantum research quantum education and technology transfer supporting UK quantum technology leadership positioning Bristol as global quantum photonics research leader.
University of Tokyo
University of Tokyo is a public research university founded in 1877, located in Tokyo, Japan, most prestigious university in Japan. The university conducts leading quantum research through multiple departments and research centers advancing quantum computing quantum materials quantum optics and quantum information science. University of Tokyo researchers contribute to quantum algorithm development quantum error correction quantum hardware and quantum applications. The university collaborates with industry partners including Japanese quantum companies and international quantum institutions. University of Tokyo has produced numerous quantum technology spinouts and maintains strong quantum research programs. The university serves quantum research community through fundamental quantum research quantum education programs and technology transfer advancing quantum information science and positioning Japan as quantum technology leader in Asia supporting quantum innovation.
University of Vienna
University of Vienna is a public research university founded in 1365, located in Vienna, Austria, oldest university in German-speaking world. The university conducts world-leading quantum optics and quantum information research. Vienna researchers have contributed major breakthroughs in quantum entanglement quantum teleportation and quantum cryptography. The university serves quantum research community through fundamental quantum physics research and quantum education. University of Vienna collaborates with Austrian quantum companies and maintains international quantum research partnerships advancing quantum science and quantum technology development supporting Austrian quantum research excellence.
University of Vigo Quantum Division
University of Vigo (Universidade de Vigo) is a Spanish public research university founded in 1989 and headquartered in Vigo, Galicia, Spain, with Quantum Division participating in Spain's QKD-GEO quantum key distribution geostationary satellite mission. The university is part of the large industrial consortium led by Thales Alenia Space developing quantum communications technology for space-based quantum key distribution. University of Vigo brings expertise in telecommunications, photonics, and quantum optics to satellite QKD research and development. The university collaborates with Institute of Astrophysics of the Canary Islands, Polytechnic University of Madrid, Thales Alenia Space, and Hispasat advancing quantum-safe satellite communications infrastructure. University of Vigo conducts research in quantum communications, quantum cryptography protocols, and photonic quantum technologies for space applications. The university serves European quantum research community, quantum technology companies, and government agencies requiring quantum communications research, quantum optics expertise, and satellite QKD technology development. The university contributes to Spanish quantum technology ecosystem and European quantum communications infrastructure initiatives.
VACOM
VACOM Vacuum Components and Measurement Technology GmbH is a leading European supplier of vacuum technology for quantum applications. Founded in 1992 by physicist Dr. Ute Bergner in Jena, the company relocated to Großlöbichau near Jena in 2016. VACOM supplies special vacuum chambers, specially coated optics, and ion getter pumps from their MERKURION product series. Their AluVaC technology products offer lightweight, extremely low-outgassing, and minimally magnetizable aluminum vacuum components ideal for quantum sensors, quantum computing, and quantum communication applications. With 370 employees and 53 trainees, VACOM has received public funding for quantum sensor projects including InnoVaQ and QUASENS, demonstrating active quantum R&D involvement.
Vector Atomic
Vector Atomic is a US quantum sensing company founded in 2018 that develops quantum inertial navigation systems using cold atom interferometry for GPS-free navigation applications, creating compact atomic gyroscopes, accelerometers, and magnetometers that provide precision navigation capabilities for defense, aerospace, and commercial applications where GPS signals are unavailable or compromised, leveraging laser-cooled atoms to achieve navigation-grade performance in portable quantum sensors that enable autonomous vehicle navigation, underwater navigation, and space exploration missions requiring ultra-precise inertial measurements without external reference signals. On October 7, 2025, Vector Atomic was acquired by IonQ in an all-stock transaction, expanding IonQ's capabilities from quantum computing into quantum sensing, timing, and navigation markets. As part of IonQ, Vector Atomic's 75+ team members and technology portfolio including precision atomic clocks, inertial sensors, and over $200 million in government contracts now support IonQ's quantum technology ecosystem. 2025 Developments: In October 2025, Vector Atomic was acquired by IonQ for quantum sensing capabilities.
Veeco Instruments
Veeco Instruments Inc. (NASDAQ: VECO) is a global leader in advanced semiconductor and compound semiconductor process equipment, with over 30 Molecular Beam Epitaxy (MBE) systems installed worldwide for quantum technology development. The company's GEN20-Q MBE system supports research and production of multiple quantum computing techniques including superconductive materials, spintronics, and high-speed optical modulation. In December 2025, Veeco announced wins with Sparrow Quantum (Denmark) and Yeungnam University (South Korea) for their MBE systems. Sparrow Quantum selected Veeco's GENxcel R&D MBE for developing high-performance quantum dot single-photon emitters, while Yeungnam University will use GEN10 MBE technology for quantum dots and nanostructures research. Earlier in 2025, Quantum Foundry Copenhagen selected Veeco's GEN20-Q MBE systems for quantum computing applications. Veeco's precision thin-film deposition technology is a critical enabler of quantum innovation across superconducting, photonic, and spin-based qubit architectures.
Vescent
Vescent develops precision photonics and laser systems for quantum computing, quantum sensing, and quantum communication applications, providing laser stabilization, optical frequency combs, and precision measurement instruments that enable the optical control and manipulation of quantum systems across various quantum technology platforms.
Vescent Photonics
Vescent Photonics is a JILA/NIST spin-out providing laser systems and photonics solutions for quantum computing and atomic physics. The Denver company manufactures precision laser systems. Vescent's laser frequency stabilization systems, laser diode controllers, and optical components serve quantum research laboratories and quantum computing companies requiring ultra-stable narrow-linewidth lasers for quantum applications.
Vexlum
Vexlum is a spin-off from the Optoelectronics Research Centre (ORC) at Tampere University of Technology specializing in novel semiconductor lasers for quantum technology applications. The company develops VECSELs (Vertical External Cavity Surface Emitting Lasers) providing high-power low-noise single-frequency lasers with broad wavelength coverage in the visible and near infrared. Vexlum's innovative laser technology enables practical quantum computing systems by providing the precision light sources required for manipulating quantum states. With approximately 25 employees, the company serves quantum computing, medical, and semiconductor industries.
Wave Photonics
Wave Photonics is a Cambridge-based integrated photonics company founded in May 2021 by University of Cambridge quantum photonics PhDs James Lee and Matthew Anderson along with CTO Mateusz Kubica. The company received £4.5 million ($5.8M) in seed funding in June 2024 co-led by UK Innovation & Science Seed Fund and Cambridge Enterprise Ventures, with participation from Redstone QAI Ventures' Quantum Fund, Kyra Ventures, and Deep Tech Labs. Complemented by non-dilutive grants from Horizon Europe EIC Fund and Innovate UK, Wave Photonics' total funding reached £5.4 million ($6.9M). The company develops on-chip photonics designs for quantum technologies, sensors, and data-center applications, building and validating computational photonics design technology to reduce photonic product development time and unlock the transformative potential of integrated photonics. Wave Photonics leads consortium projects pioneering quantum computing applications leveraging photonic integrated circuits.
Wuhan National Laboratory for Quantum Science
Wuhan National Laboratory for Quantum Science is a national-level quantum research facility focusing on quantum optics and quantum information processing. The laboratory conducts advanced quantum research. Research areas include quantum communication, quantum computing, and quantum precision measurement, contributing to China's national quantum technology capabilities and training quantum researchers.
Xanadu
Xanadu is a Toronto-based photonic quantum computing company pioneering room-temperature quantum computing. In November 2025, announced SPAC merger at $3.6 billion valuation expected to raise ~$500M (including $275M PIPE). Canadian government support: $3.75 million from FedDev Ontario (February 2024), $1M CAD from NORAD modernization contest for battery algorithms. December 2025: Signed MoU with Singapore's A*STAR (Agency for Science, Technology and Research) to advance photonic quantum computing collaboration in the Asia-Pacific region. November 2025: Selected for DARPA Stage B of Quantum Benchmarking Initiative (up to $15M funding), advancing toward utility-scale quantum computing by 2033. Strategic partnerships: A*STAR Singapore (December 2025), Applied Materials (300mm manufacturing process for superconducting sensors), DARPA (QBI Stage B, target full system by 2033), Corning (fiber optic networking), Toyota Research Institute (October 2024), University of Toronto + NRC Canada (battery algorithms), Open Quantum Design (founding partner). Technology: Aurora 12-qubit photonic quantum computer, $10 million photonic packaging facility in Toronto. PennyLane quantum software platform. Market positioning: photonic quantum computing leader going public via SPAC (2025), expanding Asia-Pacific presence through A*STAR partnership, DARPA Stage B selection, room-temperature operation advantage.
Zero Point Cryogenics
Zero Point Cryogenics (ZPC), based in Edmonton, is the only Canadian manufacturer of dilution refrigerators, growing rapidly to meet increasing demand for quantum computing cryogenics. In 2025, the company received a U.S. patent for a breakthrough Phase Separation Refrigerator enabling continuous cooling to 500 millikelvin without requiring large volumes of helium-3 - the first new cooling mechanism invented in sixty years. The system uses helium-3/helium-4 mixture with a simplified evaporation-based technique, with deployment to university and government labs starting Spring 2026. ZPC's Model I cryogen-free dilution refrigerator serves quantum computing and sensing research, and the company built a Canadian-made dilution refrigerator for the National Research Council. Products include premium customizable dilution refrigerators designed for quantum technology applications, addressing North American demand with shorter delivery times and local support compared to European suppliers.