Directory of 157 quantum technology companies: hardware, software, communication and sensing, from hand-curated data, the Quantum-Computing-Resources list and Wikidata.
1QBit (software, Vancouver, Canada) — 1QBit develops quantum and quantum-inspired software solutions for enterprises.
Advanced Quantum (startup, Stuttgart, Germany) — Quantum technology company based in Stuttgart, Germany.
Aegiq (software, Sheffield, United Kingdom) — British quantum computing platform company
Algorithmiq Ltd (hardware, Turku, Finland) — Finnish quantum computing company based in Turku
Alibaba Quantum Lab (research, Hangzhou, China, closed in 2023) — Alibaba's DAMO Academy ran a quantum laboratory in Hangzhou from 2015, working on superconducting fluxonium qubits and a quantum cloud. In late 2023 Alibaba clo
Alice & Bob (hardware, Paris, France) — French quantum computing company based in Paris
Amazon Braket (cloud, Seattle, United States) — Amazon Braket is a fully managed quantum computing service that helps researchers and developers get started with quantum computing.
AngelQ (hardware, Singapore, Singapore) — Quantum computing company
Anyon Systems Inc. (software, Dorval, Canada) — Canadian quantum computing platform company
Aqarios (startup, Munich, Germany) — Quantum technology company from Munich, Germany
aQuantum (software, Madrid, Spain) — Quantum computing software company from Madrid
Aquark Technologies (hardware, Eastleigh, United Kingdom) — British quantum computing business
Archer Materials (startup, Sydney/Adelaide, Australia) — Quantum technology company based in Sydney/Adelaide, Australia.
Arda Atomics (sensing, Stuttgart, Germany) — Quantum sensing technology company from Stuttgart, Germany
Atlantic Quantum (hardware, Cambridge, United States, acquired by Google Quantum AI in 2025) — MIT and Chalmers spinout that built fluxonium qubits with superconducting control electronics in the same cold stage.
Atom Computing (hardware, Berkeley, United States) — Atom Computing develops scalable quantum computers using nuclear spin qubits in neutral atoms.
Atos Quantum (software, Paris, France) — Atos provides quantum computing services and the Atos Quantum Learning Machine simulator.
AWS Center for Quantum Computing (hardware, Pasadena, United States) — Amazon's quantum hardware lab on the Caltech campus. In 2025 it presented Ocelot, a prototype chip built on cat qubits, which suppress one kind of error by desi
Bleximo (hardware, Berkeley, United States, closed) — Berkeley startup that designed application-specific superconducting quantum accelerators. Its last public news dates from late 2022.
blueqat (hardware, Shibuya, Japan) — Japanese quantum computing company
BlueQubit (hardware, Los Angeles, United States) — Quantum computing company
Boeing Quantum (communication, Arlington, United States) — Boeing's quantum team is building Q4S, a small satellite with HRL Laboratories that will test entanglement swapping in orbit, a key step for quantum networks ac
Bosch Quantum Sensing (sensing, Ludwigsburg, Germany) — A Bosch company, with Element Six (De Beers) holding 25%, that builds magnetic-field sensors from defects in synthetic diamond (NV centres) for medical diagnost
BQP (software, Syracuse, United States) — Company formerly called BosonQ Psi that sells BQPhy, quantum-inspired software for engineering simulation and optimisation.
BT Group (communication, Ipswich, United Kingdom) — The British telecom operator runs quantum-secured networks with Toshiba, including a commercial metro network in London, from its research centre at Adastral Pa
China Telecom Quantum Group (cloud, Hefei, China) — China Telecom's quantum company runs the Tianyan cloud, which gives online access to superconducting quantum computers built with QuantumCTek (Tianyan-504 in 20
Cisco Quantum Labs (communication, Santa Monica, United States) — Cisco's quantum networking research, with labs in Santa Monica and San Jose. The goal is to link many small quantum processors into one larger computer; in 2025
Classiq (software, Tel Aviv, Israel) — Classiq provides a quantum software platform for creating optimized quantum circuits. In October 2026 Intel agreed to acquire it; the deal is expected to close
CUCO (startup, Madrid, Spain) — Quantum technology company based in Madrid, Spain.
D-Wave Systems (hardware, Burnaby, Canada) — D-Wave is the leader in the development and delivery of quantum computing systems and software.
Deutsche Telekom T-Labs (communication, Berlin, Germany) — Deutsche Telekom's research unit in Berlin tests quantum key distribution and entanglement distribution over its existing fibre network, and leads European quan
Diraq (hardware, Sydney, Australia) — Australian quantum computing technology company
Eniquantic SpA (hardware, Rome, Italy) — Italian quantum computing company
Entropica Labs (software, Singapore, Singapore) — Quantum machine learning company from Singapore
Equal1 (hardware, San Carlos, United States) — American quantum computing hardware company
Falqon Systems (communication, Delft, Netherlands) — QuTech and TU Delft spinout, formerly Q*Bird, that builds quantum secure networks based on measurement-device-independent QKD.
Fermioniq (software, Amsterdam, Netherlands) — Quantum software company from Amsterdam
Fujitsu Quantum (hardware, Kawasaki, Japan) — Fujitsu builds superconducting quantum computers with RIKEN: 64 qubits in 2023, 256 in 2025 and a 1,000-qubit machine planned for fiscal 2026 in Kawasaki, then
Gaussian, Inc. (software, Wallingford, United States) — Owner of Gaussian quantum chemistry software
Global Data Media Tech (startup, Biscay, Spain) — Spanish big data, ai and quantum technology company
Google Quantum AI (research, Santa Barbara, United States) — Google Quantum AI is advancing the state of the art in quantum computing and developing the applications of tomorrow.
Haiqu Inc. (software, Lviv, Ukraine) — Quantum computing software company
Hitachi Quantum (hardware, Kokubunji, Japan) — Hitachi's research labs develop silicon spin qubits made with semiconductor mass-production processes, and CMOS annealing chips for optimisation. In 2026 Japan'
IAIDL Group (hardware, United States) — International umbrella holding entity for the IAIDL family of AI and quantum computing competency certification frameworks
IBM Quantum (cloud, Yorktown Heights, United States) — IBM Quantum provides cloud access to the most advanced quantum computers available, and is building a global community of quantum practitioners.
Iceberg Quantum (hardware, Sydney, Australia) — Australian quantum computing company
Infineon Quantum (hardware, Neubiberg, Germany) — The chipmaker fabricates ion-trap chips (at its Villach site in Austria) with integrated photonics and cryogenic electronics, working with trapped-ion companies
Infleqtion (hardware, Louisville, United States) — Atom-based quantum computing company
Intel Quantum Computing (hardware, Hillsboro, United States) — Intel builds silicon spin qubits on the same 300 mm production lines as its transistors (the 12-qubit Tunnel Falls chip) and cryogenic control chips (Horse Ridg
IonQ (hardware, College Park, United States) — IonQ is developing the world's most powerful quantum computers using trapped ion technology.
IQM Quantum Computers (hardware, Espoo, Finland) — IQM is a European leader in building quantum computers for research and industry.
JoS QUANTUM (software, Frankfurt, Germany) — German company developing quantum computing software and algorithms
JPMorgan Chase Global Technology Applied Research (software, New York, United States) — The bank's applied research team, one of the largest quantum groups in finance: algorithms for optimisation, simulation and cryptography. In 2025 it showed cert
Keysight Quantum Solutions (hardware, Santa Rosa, United States) — The test and measurement company sells control and readout electronics for quantum processors, the Labber lab software, benchmarking tools (True-Q) and design s
Kvantify (hardware, Copenhagen, Denmark) — Danish quantum computing company
Leonardo Quantum Technologies (research, Genoa, Italy) — The Italian aerospace and defence group studies quantum technologies in its Leonardo Labs (sensing, communication, optronics) and runs hybrid quantum-classical
LuxQuanta (communication, Barcelona, Spain) — Quantum cryptography company based in Barcelona
memQ (communication, Chicago, United States) — Quantum networking technology company based in Chicago, USA
Menten AI (hardware, Palo Alto, United States) — American biotech quantum computing company
Microsoft Azure Quantum (cloud, Redmond, United States) — Microsoft Azure Quantum is building a scalable, full-stack quantum computing ecosystem.
Multiverse Computing (software, San Sebastian, Spain) — Multiverse delivers quantum and quantum-inspired solutions for finance and optimization.
Munich Quantum Software Company (software, Garching bei München, Germany) — Business developing software for quantum computing
NEC Quantum (hardware, Tokyo, Japan) — NEC built the first superconducting qubit in 1999 and now develops quantum annealing based on superconducting parametrons, alongside vector annealing on its cla
NEXQ (software, ) — Revolutionizing Quantum Machine Learning and Precision Medicine
Nokia Bell Labs (research, Murray Hill, United States) — Nokia's research lab in New Jersey, where Shor's factoring algorithm was discovered in 1994. Today it works on topological qubits based on electrons in very cle
Nord Quantique (hardware, Sherbrooke, Canada) — Quantum processor company from Sherbrooke, Quebec
NTT Quantum Research (research, Atsugi, Japan) — NTT works on optical quantum computers that run at room temperature with squeezed light. With RIKEN it showed a general-purpose optical quantum computing platfo
Nu Quantum (communication, Cambridge, United Kingdom) — British quantum cryptography company based in Cambridge
NVIDIA Quantum (software, Santa Clara, United States) — NVIDIA does not build qubits: it makes the GPUs and software that simulate quantum circuits and run next to quantum processors (CUDA-Q, cuQuantum, NVQLink). Its
Orange Quantum Systems (startup, Delft, Netherlands) — Quantum technology company based in Delft, Netherlands.
Oratomic (hardware, South Pasadena, United States) — Quantum computing company from Pasadena, USA
ORCA Computing (hardware, London, United Kingdom) — Quantum computing company from London, UK
Origin Quantum (hardware, Hefei, China) — Origin Quantum is China's leading quantum computing company with full-stack capabilities.
Oxford Quantum Circuits (hardware, Oxford, United Kingdom) — OQC delivers enterprise quantum computing via the cloud using its Coaxmon technology.
ParityQC (startup, Innsbruck, Austria) — Quantum technology company based in Innsbruck, Austria.
Pasqal (hardware, Palaiseau, France) — Pasqal builds quantum computers using neutral atoms, enabling scalable and versatile quantum processors.
PhaseCraft Ltd. (hardware, London, United Kingdom) — UK quantum computing company
Photonic Inc (startup, Coquitlam, Canada) — Quantum technology company from British Columbia, Canada
PiDust Quantum Computing (software, Patras, Greece, closed) — Greek startup founded in Patras in 2019 to simulate molecules, drugs, chemicals and materials with quantum algorithms on existing quantum hardware such as IBM a
PlanQC (hardware, Munich, Germany) — German quantum computing company
PsiQuantum (hardware, Palo Alto, United States) — PsiQuantum is building the first utility-scale quantum computer using photonic technology.
Q-Block Computing, Inc. (hardware, Waterloo, Canada) — Quantum computing company from Waterloo, Canada
Q-CTRL (startup, Sydney, Australia) — Quantum technology company from Sydney, Australia
Q.ANT GmbH (hardware, Stuttgart, Germany) — Quantum photonics company from Stuttgart, Germany
QBLOX (hardware, Delft, Netherlands) — Quantum computing company from Delft
qBraid (education, Chicago, United States) — qBraid provides a cloud platform for quantum computing education and development.
QC Design GmBH (hardware, Ulm, Germany) — Germany quantum computing company based in Ulm
QC Ware (software, Palo Alto, United States) — QC Ware provides enterprise quantum computing software and solutions.
QClairvoyance (software, Secunderabad, India) — Quantum computing drug discovery company from Telangana, India
Qedma (startup, Tel Aviv, Israel) — Quantum technology company based in Tel Aviv, Israel.
Qilimanjaro Quantum Tech (hardware, Barcelona, Spain) — Quantum computing company from Barcelona
Qizhen Quantum (hardware, Hangzhou, China) — Chinese quantum computing company
Qnami (startup, Muttenz, Switzerland) — Swiss quantum technology company
QNu Labs (communication, Bengaluru, India) — Quantum cryptography company based in Bangalore, India
QpiAI (software, Bengaluru, India) — Quantum computing platform company based in Bengaluru, India
Qruise GmbH (startup, Saarbrücken, Germany) — German quantum technology company
QSimulate (software, Boston, United States) — American software company using quantum technologies
Qu & Co (software, Amsterdam, Netherlands, acquired by Pasqal in 2022) — Amsterdam company that developed quantum algorithms and software for chemistry, materials and computational fluid dynamics.
QuamCore (hardware, Herzliya, Israel) — QuamCore develops a superconducting quantum processor architecture designed to fit about a million qubits in a single cryostat, with digital control electronics
Quandela (startup, Massy, France) — Quantum technology company based in Massy, France.
Quantinuum (hardware, Broomfield, United States) — Quantinuum is the world's largest integrated quantum computing company, formed from Honeywell Quantum and Cambridge Quantum.
Quantonation (startup, Paris, France) — Quantum technology company based in Paris, France
Quanttelecom LLC (startup, Saint Petersburg, Russia) — Russian quantum information company
Quantum Art (hardware, Ness Ziona, Israel) — Quantum Art builds trapped-ion quantum computers with a multi-core architecture aimed at thousands of qubits. Spun off from the Weizmann Institute of Science.
Quantum Benchmark Inc. (software, Kitchener, Canada, acquired by Keysight in 2021) — University of Waterloo spinout that made software for error diagnostics, error suppression and performance validation of quantum computers (True-Q).
Quantum Brilliance (hardware, Stuttgart, Germany) — Quantum computing company
Quantum Circuits Inc. (hardware, New Haven, United States, acquired by D-Wave in 2026) — Yale spinout that built superconducting quantum computers with dual-rail qubits that detect their own errors.
Quantum Computing Inc. (software, Leesburg, United States) — QCI provides ready-to-run quantum software for business applications.
Quantum Diamonds (sensing, Munich, Germany) — German quantum sensing hardware company
Quantum Dice (startup, Oxford, United Kingdom) — Quantum technology company based in Oxford, United Kingdom.
Quantum Machines (software, Tel Aviv, Israel) — Quantum Machines develops universal quantum control solutions for any quantum processor.
Quantum Mads (software, Bilbao, Spain) — Spanish financial analysis company using quantum technology
Quantum Motion (hardware, London, United Kingdom) — Quantum Motion builds quantum processors from silicon spin qubits made with the standard CMOS processes used for ordinary computer chips. It was founded in 2017
QuantX Labs (sensing, Adelaide, Australia) — Precision timing and quantum sensor company from Adelaide, Australia
Qubitekk (communication, Vista, United States, acquired by IonQ in 2025) — Californian maker of entangled-photon sources and quantum networking hardware, which built the EPB Quantum Network in Chattanooga.
Qudoor (communication, Beijing, China) — Quantum communications company from Beijing, China
QUDORA Technologies (hardware, Brunswick, Germany) — German quantum computing company
QuEra Computing (hardware, Boston, United States) — QuEra develops quantum computers based on neutral atoms for optimization and simulation.
QuintessenceLabs (communication, Canberra, Australia) — Quantum computer security company based in Canberra, Australia
QuiX (hardware, Enschede, Netherlands) — Quantum computing company from Enschede, Netherlands
QunaSys (software, Tokyo, Japan) — QunaSys develops quantum chemical simulation software for materials and drug discovery.
Qunnect (communication, Brooklyn, United States) — Brooklyn company that makes Carina, a rack-mounted system that distributes entangled photons over existing telecom fibre, deployed in New York, Berlin and Bozem
QuTech (research, Delft, Netherlands) — QuTech is a research institute working on quantum computing and quantum internet technologies.
Rahko (software, London, United Kingdom, acquired by Odyssey Therapeutics in 2022) — UCL spinout in London that combined quantum machine learning and computational chemistry for drug discovery.
Rigetti Computing (hardware, Berkeley, United States) — Rigetti builds quantum computers and the superconducting quantum processors that power them.
Riverlane (software, Cambridge, United Kingdom) — Riverlane builds quantum error correction solutions to make quantum computers useful.
Rotonium (startup, Padova, Italy) — Quantum technology company based in Padova, Italy.
RTX BBN Technologies (research, Cambridge, United States) — The research arm of RTX (formerly Raytheon) in Cambridge, Massachusetts, a long-time contractor for US government quantum programs: superconducting qubit contro
Rydberg Technologies LLC (sensing, Ann Arbor, United States) — Quantum sensor company based in Ann Arbor, Michigan, USA
Seeqc, Inc. (hardware, Elmsford, United States) — Superconducting quantum computing company from Elmsford, NY, USA
Silicon Quantum Computing (hardware, ) — Australian quantum computing company
Sparrow Quantum (startup, Copenhagen, Denmark) — Optical quantum technology company from Denmark
SpeQtral (communication, Singapore, Singapore) — Quantum communications company from Singapore
Strangeworks (software, Austin, United States) — Strangeworks makes quantum computing accessible through its enterprise software platform.
Super.tech (software, Chicago, United States, acquired by Infleqtion in 2022) — University of Chicago spinout that built SuperstaQ, software that optimises quantum programs down to the pulse level for different hardware.
Tabor Quantum Solutions (hardware, Israel) — Quantum computing company based in Haifa, Israel
Terra Quantum AG (hardware, Rorschach, Switzerland) — Quantum computing company from Rorschach, Switzerland
Thales Quantum (sensing, Palaiseau, France) — The defence and aerospace group develops quantum sensors (magnetometers, atomic clocks, inertial sensors) at Thales Research & Technology near Paris, plus quant
ThinkQuantum (startup, Padova, Italy) — Quantum technology company based in Padova, Italy.
Toshiba Quantum Technology (communication, Kawasaki, Japan) — One of the largest suppliers of quantum key distribution (QKD) systems, developed at its Cambridge Research Laboratory in the UK and deployed in networks in Lon
Turing, Inc (hardware, Berkeley, United States) — Quantum computing company based in Berkeley, USA
TuringQ (hardware, Shanghai, China) — Chinese optical quantum computing company
Universal Quantum (hardware, Brighton, United Kingdom) — Quantum computing company based in Brighton, UK
Xanadu (hardware, Toronto, Canada) — Xanadu builds quantum computers using photonic technology and develops quantum software platforms.
XeedQ (hardware, Leipzig, Germany) — German quantum computing technology company
YQuantum (hardware, Villigen, Switzerland) — Swiss quantum hardware company
Zapata Quantum (software, Boston, United States) — Quantum software company from Boston, formerly Zapata Computing. It went public as Zapata AI in 2023, ceased operations in October 2024, then restructured its d
ZQuantum Technology Co. (hardware, Beijing, China) — Chinese optical quantum computing company