Alternatives to Quantum Colleagues
The top Quantum Computing companies similar to Quantum Colleagues, ranked by relevance (named competitors first, then how closely their sectors overlap) and our 0-100 AI-readiness score. Each links to a full profile with funding and team.
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QBLOX61Quantum ComputingDelft, Netherlands$26.0MQblox provides modular hardware and software solutions for scalable quantum computer control.
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PsiQuantum70Quantum ComputingPalo Alto, United States$3.6BBuilding a fault-tolerant quantum computer using photonics and silicon manufacturing.
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Quantum Machines69Quantum ComputingTel Aviv, Israel$293.0MBuilds the Quantum Orchestration Platform (QOP) to accelerate quantum computing development and deployment.
- Website QUQUANTIER TECHNOLOGIES54Quantum ComputingHong Kong, Hong Kong
Develops neutral atom-based quantum computers and provides cloud-based quantum computing services.
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Classiq67Quantum ComputingTel Aviv, Israel$194.5MQuantum computing software platform for designing and optimizing quantum circuits.
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Quantinuum66Quantum ComputingBroomfield, United States$1.2BQuantum computing company focused on building fault-tolerant quantum computers and quantum software.
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Quobly64Quantum ComputingGrenoble, France$341.5MDeveloping advanced silicon-based quantum computing hardware for scalable and manufacturable quantum processors.
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Atom Computing63Quantum ComputingBoulder, USA$428.0MDeveloping fault-tolerant quantum computers.
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eleQtron63Quantum ComputingSiegen, Germany$83.0MTrapped-ion quantum computing technology for industrial scaling.
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QuantWare62Quantum ComputingDelft, Netherlands$162.0MQuantum processor company developing and scaling modular quantum processors.
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Quantum Art62Quantum ComputingTel Aviv, Israel$141.1MCommercial quantum computing systems for complex problem-solving.
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Zapata Quantum62Quantum ComputingBoston, USA$89.1MQuantum computing application and algorithm development
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Algorithmiq62Quantum ComputingHelsinki, Finland$38.1MQuantum software company enabling breakthroughs in chemistry, materials science, and life sciences.
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Quantum Source Labs61Quantum ComputingPalo Alto, United States$78.5MDeveloping practical photonic quantum computers using a novel photon-atom gate architecture.
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AetherFlux61Quantum ComputingPalo Alto, United States$300.0MAetherFlux is developing a novel quantum computing architecture for complex simulations.
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Pasqal61Quantum ComputingPalaiseau, France$233.0MPasqal develops quantum computing solutions for complex scientific and industrial problems.
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Delft Circuits60Quantum ComputingDelft, Netherlands$8.0MDesigns and manufactures advanced cryogenic I/O infrastructure for quantum computers.
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SparrowQuantum60Quantum ComputingCopenhagen, Denmark$32.8MSparrow Quantum develops and commercializes photonic quantum chip technology, delivering single photons on demand for quantum computing and communication.
- Website QUQuanscient60Quantum ComputingEspoo, Finland$10.3M
Cloud and quantum-powered multiphysics simulation platform for faster R&D and product development.
- Website IQIQM Quantum Computers60Quantum ComputingEspoo, Finland$532.9M
Designs and builds quantum computers for research and industry applications.
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Rigetti Computing59Quantum ComputingBerkeley, United States$178.0MDesigns, manufactures, and deploys superconducting quantum computers and processors.
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IQM58Quantum ComputingEspoo, Finland$516.0MQuantum computer hardware and software developer for various industries.
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Qunnect57Quantum ComputingNew York, United States$10.0MBuilding field-deployable hardware for scalable quantum networks and provably secure communications.
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Quantum Motion57Quantum ComputingLondon, United Kingdom$181.0MSilicon transistor-based quantum computing.
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Phasecraft57Quantum ComputingLondon, United Kingdom$99.4MQuantum computing software company developing tools for fault-tolerant quantum computers.
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QEDMA57Quantum ComputingTel Aviv, Israel$40.7MIsraeli startup developing quantum noise resilience software to improve quantum computing.
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Quantum Brilliance56Quantum ComputingCanberra, Australia$23.0MDevelops advanced quantum computing solutions for enterprise and government applications.
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Universal Quantum55Quantum ComputingBristol, United Kingdom$25.0MDeveloping a fault-tolerant quantum computer using a novel approach to qubit control.
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Oratomic55Quantum ComputingSouth Pasadena, United States$300.0MDeveloping neutral-atom quantum hardware and fault-tolerant architectures to accelerate quantum computing.
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Infleqtion55Quantum ComputingLondon, United Kingdom$200.0MQuantum technology company developing advanced sensors, navigation, and AI solutions.
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Oxford Quantum Circuits55Quantum ComputingOxford, United Kingdom$430.0MBuilding and deploying quantum computers.
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Groove Quantum54Quantum ComputingDelft, Netherlands$43.8MDeveloping scalable germanium spin-qubit processors for quantum computing.
- Website IQIQM Quantum54Quantum ComputingEspoo, Finland$852.4M
Finnish quantum computer manufacturer building fault-tolerant quantum computers for various industries.
- Website OQOQC54Quantum ComputingAbingdon, United Kingdom$378.0M
Quantum computing company developing superconducting quantum chips.
- PHPhotonic53Quantum ComputingVancouver, Canada$200.0M
Develops commercial-scale quantum computers and quantum networks.
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memQ53Quantum ComputingPalo Alto, USA$10.0MQuantum networking solutions startup
- Website HAHaiqu53Quantum ComputingNew York City, United States$16.6M
Developing quantum software to make quantum computing practical and cost-effective for near-term applications.
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Iceberg Quantum52Quantum ComputingCambridge, United States$8.0MDesigns advanced quantum computing architectures using LDPC codes for fault-tolerant systems.
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C12 Quantum Electronics52Quantum ComputingParis, France$29.4MDeveloping scalable quantum computers using carbon nanotubes for improved qubit quality and connectivity.
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QuTwo51Quantum ComputingHelsinki, Finland$27.0MAI-driven software platform simulating quantum workloads on classical hardware for enterprise quantum readiness.
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Xanadu51Quantum ComputingToronto, Canada$569.5MXanadu is a Canadian quantum computing company building photonic quantum computers and developing quantum software.
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Nord Quantique Inc.50Quantum ComputingSherbrooke, Canada$30.0MQuantum computing startup developing a quantum processor and software stack.
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OrangeQS50Quantum ComputingDelft, Netherlands$44.6MQuantum chip performance testing solutions.
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Oak Ridge50Quantum ComputingOak Ridge, United States$125.0MOak Ridge National Laboratory is a leader in quantum computing research and HPC integration.
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QuEra Computing50Quantum ComputingBoston, USA$14.0MBuilding the world's most powerful quantum computers.
- ATAtlantic Quantum49Quantum ComputingBoston, United States$12.0M
Startup focused on quantum computing hardware and software solutions.
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YQuantum49Quantum ComputingVilligen, Switzerland$322KDeveloping miniaturized, high-performance cryogenic hardware components to enable scalable, next-generation quantum computing systems.
- OXOxford Ionics48Quantum ComputingOxford, United Kingdom$63.0M
Quantum computing research and development
- Website RIRiverlane48Quantum ComputingCambridge, United Kingdom$93.9M
Riverlane develops quantum error correction technology to make quantum computers useful sooner.
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Develops quantum computing systems for solving complex problems.
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Quantum Transistors47Quantum ComputingPalo Alto, United States$19.0MDeveloping solid-state quantum processors to bring quantum computing to enterprise servers.
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Quandela47Quantum ComputingPalaiseau, France$63.0MDeveloping quantum computing hardware.
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yQunatum45Quantum ComputingVilligen, Switzerland$170KDevelops miniaturized, high-performance cryogenic hardware components for scalable quantum computers.
- PIPixel Photonics45Quantum ComputingMünster, Germany$13.5M
Accelerating market entry for superconducting single-photon detector technology.
- Website QOQoro Quantum44Quantum ComputingLondon, United Kingdom$750K
Software infrastructure that unifies classical CPUs/GPUs with quantum processors for distributed hybrid quantum-classical computing.
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Peak Quantum44Quantum ComputingMunich, Germany$2.2MDeveloping error-resilient superconducting quantum processors with intrinsic hardware-level error correction.
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Cerca Magnetics63Medical DevicesNottingham, United Kingdom$6.8MDeveloping wearable brain imaging systems using quantum sensing technology.
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Q-Factor43Quantum ComputingTel Aviv, Israel$24.0MQ-Factor is a quantum computing startup developing a neutral atom-based quantum computer architecture designed to scale to one million qubits and beyond.
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Rhonexum43Quantum ComputingLausanne, Switzerland$43KDevelops cryogenic electronics for quantum computing and other advanced applications.
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LuxQuanta42Quantum ComputingMadrid, Spain$11.1MQuantum communication technology for secure and high-speed data transmission.