Alternatives to Quantum Circuits
The top Quantum Computing companies similar to Quantum Circuits, 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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Rigetti Computing59Quantum ComputingBerkeley, United States$178.0MDesigns, manufactures, and deploys superconducting quantum computers and processors.
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IBM Quantum12Quantum ComputingYorktown Heights, United StatesIBM's initiative to advance quantum computing hardware, software, and services.
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Google Quantum AI19Quantum ComputingSanta Barbara, United StatesGoogle Quantum AI is a research division of Google focused on developing large-scale, error-corrected quantum computers.
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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 Machines68Quantum ComputingTel Aviv, Israel$293.0MBuilds the Quantum Orchestration Platform (QOP) to accelerate quantum computing development and deployment.
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Atom Computing63Quantum ComputingBoulder, USA$428.0MDeveloping fault-tolerant quantum computers.
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Quantum Art62Quantum ComputingTel Aviv, Israel$141.1MCommercial quantum computing systems for complex problem-solving.
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QuantWare62Quantum ComputingDelft, Netherlands$162.0MQuantum processor company developing and scaling modular quantum processors.
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IQM Quantum Computers60Quantum ComputingEspoo, Finland$532.9MDesigns and builds quantum computers for research and industry applications.
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eleQtron60Quantum ComputingSiegen, Germany$83.0MTrapped-ion quantum computing technology for industrial scaling.
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IQM58Quantum ComputingEspoo, Finland$516.0MQuantum computer hardware and software developer for various industries.
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QEDMA56Quantum ComputingTel Aviv, Israel$40.7MIsraeli startup developing quantum noise resilience software to improve 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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IQM Quantum54Quantum ComputingEspoo, Finland$852.4MFinnish quantum computer manufacturer building fault-tolerant quantum computers for various industries.
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Quantum computing company developing superconducting quantum chips.
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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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Quantum Brilliance52Quantum ComputingCanberra, Australia$23.0MDevelops advanced quantum computing solutions for enterprise and government applications.
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QuEra Computing50Quantum ComputingBoston, USA$14.0MBuilding the world's most powerful quantum computers.
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Nord Quantique Inc.50Quantum ComputingSherbrooke, Canada$30.0MQuantum computing startup developing a quantum processor and software stack.
- ATAtlantic Quantum49Quantum ComputingBoston, United States$12.0M
Startup focused on quantum computing hardware and software solutions.
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Quantum Motion49Quantum ComputingLondon, United Kingdom$181.0MSilicon transistor-based quantum computing.
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Universal Quantum47Quantum ComputingBristol, United Kingdom$25.0MDeveloping a fault-tolerant quantum computer using a novel approach to qubit control.
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Developing the world's first quantum energy chip.
- Website QUQUANTIER TECHNOLOGIES54Quantum ComputingHong Kong, Hong Kong
Develops neutral atom-based quantum computers and provides cloud-based quantum computing services.
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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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D-Wave51Quantum ComputingBurnaby, CanadaPioneering quantum computing company offering annealing and gate-model systems, software, and cloud services.
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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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Quantum Source Labs63Quantum ComputingPalo Alto, United States$78.5MDeveloping practical photonic quantum computers using a novel photon-atom gate architecture.
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QBLOX61Quantum ComputingDelft, Netherlands$26.0MQblox provides modular hardware and software solutions for scalable quantum computer control.
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Pasqal61Quantum ComputingPalaiseau, France$233.0MPasqal develops quantum computing solutions for complex scientific and industrial problems.
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Vacua37Quantum ComputingDeveloping a quantum processor for fault-tolerant topological quantum computing and quantum memory.
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C12 Quantum Electronics51Quantum ComputingParis, France$29.4MDeveloping scalable quantum computers using carbon nanotubes for improved qubit quality and connectivity.
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OrangeQS50Quantum ComputingDelft, Netherlands$44.6MQuantum chip performance testing solutions.
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Groove Quantum50Quantum ComputingDelft, Netherlands$43.8MDeveloping scalable germanium spin-qubit processors for quantum computing.
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Riverlane49Quantum ComputingCambridge, United Kingdom$93.9MRiverlane develops quantum error correction technology to make quantum computers useful sooner.
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yQunatum45Quantum ComputingVilligen, Switzerland$170KDevelops miniaturized, high-performance cryogenic hardware components for scalable quantum computers.
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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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Quantum Transistors43Quantum ComputingPalo Alto, United States$19.0MDeveloping solid-state quantum processors to bring quantum computing to enterprise servers.
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ZuriQ42Quantum ComputingZurich, Switzerland$22.4MSwiss quantum computing startup building scalable 2D trapped-ion quantum computers
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LuxQuanta42Quantum ComputingMadrid, Spain$11.1MQuantum communication technology for secure and high-speed data transmission.
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IonQ41Quantum ComputingCollege Park, United States$10.0MIonQ is a leader in quantum computing, developing powerful quantum computers for various industries.
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LiGenTec60Photonic Chip DesignEcublens, Switzerland$3.3MLIGENTEC designs and manufactures low-loss silicon nitride photonic integrated circuits (PICs) for high-tech industries.
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Developing cryogenic electronics solutions for quantum technologies.
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Phi-Coherent .24Quantum ComputingSan Francisco, United StatesDeep-tech research company building foundational technologies from first principles, including compression, post-quantum cryptography, quantum computing simulation, and AGI.
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Omni Design Technologies58AI HardwareSan Jose, United States$44.3MDevelops Wideband Signal Processing solutions for AI, quantum computing, and next-gen technologies.
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Arkeon Technologies35Quantum ComputingGothenburg, Sweden$594KImproving precision and quality in the production of superconducting quantum chips.
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AI Quantum35Quantum ComputingCambridge, United States$1.0MAI Quantum is a startup focused on developing quantum computing solutions for AI.
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Quinas Technology53SemiconductorsLondon, United Kingdom$4.2MDeveloping ultra-low power non-volatile memory technologies for AI, data centers, and edge computing.
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PhotonicsQ47Photonic$1.0MDeveloping a general-purpose photonic quantum computing machine with instant any-to-any qubit interaction.
- Website Quantum Diving10Quantum ComputingTel Aviv, Israel
Quantum Diving is developing a quantum computing platform for complex simulations and data analysis.
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Broadcom83SemiconductorsPalo Alto, United States$143.1BBroadcom is a global technology leader designing, developing, and supplying semiconductor and infrastructure software solutions.
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QuTech8Quantum ComputingDelft, NetherlandsA Dutch research institute focused on developing a quantum computer and quantum internet.
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NVIDIA Corp83Professional VisualizationSanta Clara, United States$4.1BGlobal technology company renowned for its GPUs, SoCs, and APIs, driving advancements in AI, gaming, and high-performance computing.
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Quantum Industries7Quantum ComputingQuantum Industries is a startup focused on developing advanced quantum computing solutions.
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Nvidia82HardwareSanta Clara, United States$4.0BGlobal leader in GPUs and AI hardware, powering data centers, gaming, and autonomous systems.
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Classiq61Quantum ComputingTel Aviv, Israel$194.5MQuantum computing software platform for designing and optimizing quantum circuits.
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Tesla81AutomotiveAustin, United States$7.7BDesigns, manufactures, and sells electric vehicles, battery energy storage, and solar energy products.
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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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Delft Circuits60Quantum ComputingDelft, Netherlands$8.0MDesigns and manufactures advanced cryogenic I/O infrastructure for quantum computers.
Compare Quantum Circuits head to head
Side by side on what each one does, what it costs, and what real users report.
- Quantum Circuits vs Rigetti Computing
- Quantum Circuits vs IBM Quantum
- Quantum Circuits vs Google Quantum AI
- Quantum Circuits vs PsiQuantum
- Quantum Circuits vs Quantum Machines
- Quantum Circuits vs Atom Computing
- Quantum Circuits vs Quantum Art
- Quantum Circuits vs QuantWare
- Quantum Circuits vs IQM Quantum Computers
- Quantum Circuits vs eleQtron

