Quantum Computing
Quantum computing hardware using superconducting, trapped-ion, photonic, or neutral-atom qubits for solving problems intractable for classical computers.
Nu Quantum
GB · Cambridge, UKSingle-photon sources and detectors operating at ambient temperature for quantum networking and computer scaling.
Aegiq
GB · Sheffield, UKNext-generation identical single-photon sources using semiconductor chips for quantum sensing and communications.
Universal Quantum
GB · Brighton, UKFully scalable trapped-ion quantum computers using microwave technology and modular architecture operating at -200°C.
Atlantic Quantum
US · Cambridge, MAMIT spin-off developing noise-protected fluxonium superconducting qubits for fault-tolerant quantum computing.
Snowcap Compute
US · Palo Alto, CASuperconducting compute platform for AI and quantum-classical hybrid using Josephson junctions. Pat Gelsinger is Chairman.
SEEQC
US · Elmsford, NYDigital quantum computing. SFQ-based classical-quantum interface chips.
Google Quantum AI
US · Santa Barbara, CAWillow processor (105 qubits). Quantum error correction breakthrough Dec 2024.
Oxford Instruments
GB · Abingdon, UKProteox dilution refrigerators, high-field magnets, cryostats. Founded 1959, Oxford University spinout.
Miraex
CH · Lausanne, SwitzerlandEPFL spin-off developing photonic and quantum solutions for next-generation sensing, networking, and computing.
EeroQ
US · Chicago, ILHelium-based quantum chip. $7.25M seed funding.
PsiQuantum
US · Palo Alto, CAPhotonic quantum computing. $665M raised, manufacturing partnership with GlobalFoundries.
Oxford Ionics
GB · Oxford, UKTrapped-ion quantum computers with high-performance qubit technology. Oxford University spinout, acquired by IonQ.
QMill
FI · Espoo, FinlandResource-efficient quantum algorithms for finance, telecom, logistics, and energy. Founded 2024.
Alice & Bob
FR · Paris, FranceCat qubits for fault-tolerant quantum computing. $104M Series B (Jan 2025).
QuEra Computing
US · Boston, MANeutral atom quantum computers backed by Google Quantum AI and SoftBank. Building fault-tolerant systems.
eleQtron
DE · Siegen, GermanyCommercial quantum hardware using MAGIC (Magnetic Gradient Induced Coupling) technology for RF-controlled trapped ions.
AQSolotl
SG · SingaporeQuantum controller bridging conventional computers with quantum systems. CHRONOS-Q determines qubit states in under 14 nanoseconds.
Quantum Computing Inc
US · Leesburg, VAPhotonic quantum optimization machines. Dirac entropy quantum computing (EQC) for enterprise.
Bluefors
FI · Helsinki, FinlandWorld-leading dilution refrigerator manufacturer. KIDE platform for 1000+ qubit systems, Linde partnership.
Atom Computing
US · Berkeley, CANeutral atom quantum computers. Microsoft partnership, commercial launch 2025.
Atom Computing
US · Berkeley, CANeutral-atom quantum. Microsoft partnership for commercial quantum computer 2025.
QuEra Computing
US · Boston, MANeutral atom quantum computers. Harvard/MIT spinout, Aquila system.
planqc
DE · Munich, GermanyNeutral atoms trapped in optical lattices for quantum computing. Munich Quantum Valley's first startup.
ORCA Computing
GB · London, UKFull-stack photonic quantum computing using quantum memory technology. Compact rack-mounted systems without refrigeration.
SCALINQ
SE · Gothenburg, SwedenWACQT spinoff from Chalmers University. Hardware components for scalable quantum systems including RF packaging.
Quantum Source
IL · Rehovot, IsraelWeizmann Institute spin-off developing photonic quantum computers with millions of qubits using single atoms on photonic chips.
Diraq
AU · Sydney, AustraliaQuantum computing using current chip fabrication technology. Silicon-based qubits compatible with CMOS manufacturing.
QuiX Quantum
NL · Enschede, NetherlandsUniversal photonic quantum computers on silicon-nitride chips operating at room temperature.
QuEra Computing
US · Boston, MANeutral atom quantum computers. Aquila 256-qubit machine, Harvard/MIT spinout.
D-Wave
CA · Burnaby, BCQuantum annealing. Advantage2 prototype with 4,400+ qubits. NYSE listed.
Quantinuum
US · Broomfield, COHoneywell + Cambridge Quantum merger. H-Series trapped-ion, quantum volume 1,048,576.
SpinQ
CN · Shenzhen, ChinaNMR portable quantum computers + superconducting. Commercial QPU production.
Pasqal
FR · Massy, FranceNeutral atom quantum computing. French spinout, 1000+ qubit systems.
Riverlane
GB · Cambridge, UKReal-time quantum error decoder. Rigetti partnership (Oct 2024).
IQM Quantum Computers
FI · Espoo, FinlandLeading superconducting quantum computer manufacturer. Building Finland's 300-qubit system. Aalto University/VTT spinout.
Low Noise Factory
SE · Gothenburg, SwedenCryogenic low-noise amplifiers (LNAs). Industry standard for quantum readout chains.
ZuriQ
CH · Zurich, SwitzerlandETH Zurich spin-off developing trapped-ion quantum computers with novel chip architecture enabling thousands of qubits.
AuroraQ
CA · Waterloo, ONIntegrated quantum computing systems combining processing, communication, and memory. YC backed.
Alice & Bob
FR · Paris, FranceCat qubits for fault-tolerant quantum. French startup, error-protected qubits.
Aliro Quantum
US · Boston, MAHarvard spin-out developing AliroNet platform for entanglement-based quantum networks and distributed quantum computing.
KETS Quantum Security
GB · Bristol, UKChip-scale quantum key distribution (QKD) and quantum random number generators for telecoms and defense.
Qubic
CA · Waterloo, CanadaCryogenic TWPA amplifiers. 10,000x heat reduction, $925K CAD grant, 2026 commercialization target.
Q-CTRL
AU · Sydney, AustraliaQuantum error suppression software. Nvidia/OQC partnership.
imec
BE · Leuven, BelgiumR&D for superconducting logic. TSMC-compatible cryo-CMOS research.
Qunnect
US · Brooklyn, NYFirst to deploy quantum entanglement protocols over commercial fiber. Room-temperature quantum networking hardware.
Ephos
IT · Milan, ItalyWorld's first glass-based quantum photonic chips for quantum computing and AI infrastructure.
SandboxAQ
US · Palo Alto, CAGoogle/Alphabet spin-off combining quantum sensors with AI for ultra-precise detection in navigation and medical diagnostics.
OptQC
JP · JapanJapanese photonic quantum computing startup.
Xanadu
CA · Toronto, CanadaPhotonic quantum computing. Aurora 12-qubit (Jan 2025), $275M raised, $1B valuation.
SpinQ Technology
CN · Beijing, ChinaTsinghua-founded company with breakthroughs in superconducting quantum chips. First Chinese quantum computer export.
SEEQC
US · Elmsford, NYSuperconducting SFQ control chips. 40 GHz at 20mK, NVIDIA/IBM/DARPA partnerships, ITRI manufacturing.
Origin Quantum
CN · HefeiChinese quantum computing company developing superconducting quantum computers. Released Wuyuan superconducting quantum chip. Pioneer in Chinese quantum computing.
Anyon Systems
CA · Montreal, QCCanada's first manufacturer of gate-based superconducting quantum computers delivering turnkey MonarQ platforms.
SCALINQ
SE · Gothenburg, SwedenQET Vidar TWPA amplifiers with 4 GHz bandwidth. Swedish quantum infrastructure startup.
PsiQuantum
US · Palo Alto, CAPhotonic quantum computing. Omega chipset (Feb 2025), $450M Series D, potential $6B valuation.
Alice & Bob
FR · Paris, FranceFault-tolerant quantum computers using innovative cat qubit technology. Requires thousands vs millions of qubits.
IBM Quantum
US · Armonk, NYSuperconducting qubits. Condor (1,121 qubits), Nighthawk (120 qubits, 2025), fault-tolerant roadmap for 2029.
Classiq
IL · Tel Aviv, IsraelQuantum software platform for enterprise. $200M+ raised, serves BMW, Citi, Rolls-Royce. 60+ patents.
Quantinuum
GB · Cambridge, UKTrapped-ion quantum computers. $600M funding, H-Series with 56 qubits, QV 1M achieved.
Quandela
FR · Paris, FrancePhotonic quantum computers with single-photon technology. Building Europe's most powerful universal photonic quantum computer.
IQM Quantum Computers
FI · Espoo, FinlandEuropean superconducting quantum. Building quantum computers for HPC centers.
Pasqal
FR · Paris, FranceNeutral atom quantum computers with 100+ qubits. Institut d'Optique spinout co-founded by Nobel Prize winner Alain Aspect.
Oxford Quantum Circuits
GB · London, UKSuperconducting quantum processors with proprietary Coaxmon architecture. Europe's first Quantum-Compute-as-a-Service.
SpinQ Technology
CN · ShenzhenChinese quantum computing company offering desktop and portable quantum computers for education and research. Making quantum computing accessible.
D-Wave Systems
CA · Burnaby, British ColumbiaCanadian quantum computing company pioneering quantum annealing. Advantage2 processor with 4,400+ qubits. Focus on optimization problems for enterprise applications.
Infleqtion
US · Boulder, CONeutral atom quantum tech (formerly ColdQuanta). DARPA QBI funding, founded 2007.
Silicon Quantum Computing
AU · Sydney, AustraliaOnly company manufacturing quantum electronic devices in silicon with atomic precision. Full in-house fabrication.
Nord Quantique
CA · Sherbrooke, QCFault-tolerant superconducting quantum computers using multi-mode bosonic qubits with 1:1 physical-to-logical qubit ratio.
QuEra Computing
US · Boston, MANeutral-atom quantum computing. $230M+ raised (Feb 2025), Google/SoftBank investors.
Qnami
CH · Basel, SwitzerlandQuantum microscopes using nitrogen-vacancy centers in diamond for nanoscale magnetic materials inspection.
QuantWare
NL · Delft, Netherlands3D chip architecture VIO, Contralto-A QPU. €20M Series A (March 2025).
Bleximo
US · Berkeley, CAApplication-specific superconducting quantum computers (qASIC) co-designed with algorithms for materials simulation.
Atom Computing
US · Boulder, CONeutral atom quantum computers with 1,180+ qubits using ytterbium atoms. Partnering with Microsoft for commercial deployment.
Qolab
US · United StatesFounded by Nobel Prize winner John Martinis, developing high-coherence superconducting quantum processors.
TuringQ
CN · BeijingChinese photonic quantum computing company. Developing optical quantum computing systems for practical applications. Focus on photonic qubits.
PsiQuantum
US · Palo Alto, CABuilding first commercially viable million-qubit quantum computer using photonic approach. Omega chipset at GlobalFoundries.
Alpine Quantum Technologies
AT · Innsbruck, AustriaGeneral-purpose trapped-ion quantum processors with optical networkability from University of Innsbruck researchers.
Zurich Instruments
CH · Zurich, SwitzerlandQuantum control electronics. SHFPPC Parametric Pump Controller, QuantWare integration for turnkey readout.
Akhetonics
DE · GermanyAll-optical general-purpose chip. €6M seed (Nov 2024).
ConScience AB
SE · Gothenburg, SwedenFirst company to deliver commercial quantum devices fully designed and manufactured in Sweden.
Atom Computing
US · Berkeley, CANeutral atom quantum computers. First 1000+ qubit gate-based quantum computer in 2023.
Delft Circuits
NL · Delft, NetherlandsCri/oFlex cryogenic cables. Bluefors partnership, 50% more channels per port, scalable quantum I/O.
Algorithmiq
FI · Helsinki, FinlandQuantum algorithms for life sciences and drug discovery. Combines classical and quantum computing.
Rigetti Computing
US · Berkeley, CASuperconducting qubits. Ankaa-2 (84 qubits), 98% median 2-qubit fidelity, Novera QPU.
C12 Quantum Electronics
FR · Paris, FranceCarbon nanotube-based quantum computing with ultra-pure materials minimizing errors. École Normale Supérieure spinout.
Conductor Quantum
US · San Francisco, CAAI-driven qubit creation in semiconductor chips for scalable quantum computers. YC 2024.
IonQ
US · College Park, MDTrapped-ion quantum. Acquired Oxford Ionics ($1.075B, 2025). Targeting 2M+ physical qubits by 2030.
Pasqal
FR · Paris, FranceNeutral-atom quantum. €100M Series B (2023), Nobel laureate Alain Aspect co-founder.
SemiQon
FI · Espoo, FinlandVTT spinout developing silicon-based quantum processors for million-qubit era. Warmer temperature operation.
Xanadu
CA · Toronto, CanadaPhotonic quantum computing. PennyLane software, Borealis system.
Quantum Motion
GB · LondonUK silicon qubit quantum computing. CMOS-compatible 300mm fabrication. UCL/Oxford spinout. Bosch Ventures backed.
Multiverse Computing
ES · San Sebastian, SpainQuantum and quantum-inspired algorithms for finance and optimization. Singularity platform.
Archer Materials
AU · Adelaide, SA12CQ quantum chip for mobile devices. Room-temperature qubit technology. Also developing A1 biochip for medical diagnostics.
Quantinuum
GB · CambridgeQuantum computing company formed from merger of Honeywell Quantum Solutions and Cambridge Quantum. H-Series trapped-ion quantum computers with industry-leading gate fidelity.
Qubitcore
JP · Yokohama, JapanJapan's first trapped-ion quantum computing startup developing distributed quantum systems with micro optical resonators.