Alternatives to IonQ
The top Quantum Computing companies similar to IonQ, 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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Pasqal61Quantum ComputingPalaiseau, France$233.0MPasqal develops quantum computing solutions for complex scientific and industrial problems.
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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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Q-ANT42Quantum ComputingTel Aviv, Israel$80.0MQ-ANT is a startup developing advanced quantum computing solutions for complex problem-solving.
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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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Quantinuum66Quantum ComputingBroomfield, United States$1.2BQuantum computing company focused on building fault-tolerant quantum computers and quantum software.
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Quantum Art62Quantum ComputingTel Aviv, Israel$141.1MCommercial quantum computing systems for complex problem-solving.
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IQM58Quantum ComputingEspoo, Finland$516.0MQuantum computer hardware and software developer for various industries.
- Website OQOQC54Quantum ComputingAbingdon, United Kingdom$378.0M
Quantum computing company developing superconducting quantum chips.
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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.
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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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D-Wave51Quantum ComputingBurnaby, CanadaPioneering quantum computing company offering annealing and gate-model systems, software, and cloud services.
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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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Quantum Chromatics8Quantum ComputingQuantum Chromatics is developing a novel quantum computing architecture for robust and scalable quantum computations.
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Atom Computing63Quantum ComputingBoulder, USA$428.0MDeveloping fault-tolerant quantum computers.
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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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Rigetti Computing59Quantum ComputingBerkeley, United States$178.0MDesigns, manufactures, and deploys superconducting quantum computers and processors.
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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.
- ATAtlantic Quantum49Quantum ComputingBoston, United States$12.0M
Startup focused on quantum computing hardware and software solutions.
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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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IBM Quantum12Quantum ComputingYorktown Heights, United StatesIBM's initiative to advance quantum computing hardware, software, and services.
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QuTech8Quantum ComputingDelft, NetherlandsA Dutch research institute focused on developing a quantum computer and quantum internet.
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QUANTUMSOURCE LABS8Quantum ComputingPalo Alto, United StatesQuantum computing hardware and software solutions for advanced research and development.
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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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Vacua37Quantum ComputingDeveloping a quantum processor for fault-tolerant topological quantum computing and quantum memory.
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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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Arkeon Technologies35Quantum ComputingGothenburg, Sweden$594KImproving precision and quality in the production of superconducting quantum chips.
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PhotonicsQ47Photonic$1.0MDeveloping a general-purpose photonic quantum computing machine with instant any-to-any qubit interaction.
- Website Quantum Developments8Quantum Computing
Quantum Developments is a startup focused on developing quantum computing solutions.
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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.
- Website KUKuano Technologies34Quantum ComputingCambridge, United Kingdom$1.0M
Developing advanced quantum computing algorithms and software for complex problem-solving.
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Algorithmiq60Quantum ComputingHelsinki, Finland$38.1MQuantum software company enabling breakthroughs in chemistry, materials science, and life sciences.
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Zapata Quantum59Quantum ComputingBoston, USA$89.1MQuantum computing application and algorithm development
- Website QMQMatter37Quantum ComputingPalo Alto, United States$16.2M
Quantum compression technology for complex simulations, extending hardware capabilities.
- Website CACasimir37Quantum ComputingHouston, USA$3.5M
Developing the world's first quantum energy chip.
- Website Quantum Kinetics19Quantum ComputingToronto, Canada
Quantum Kinetics is developing quantum computing solutions for complex scientific and industrial problems.
- Website QUQUANTIER TECHNOLOGIES54Quantum ComputingHong Kong, Hong Kong
Develops neutral atom-based quantum computers and provides cloud-based quantum computing services.
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Delft Circuits60Quantum ComputingDelft, Netherlands$8.0MDesigns and manufactures advanced cryogenic I/O infrastructure for quantum computers.
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Quantum Brilliance52Quantum ComputingCanberra, Australia$23.0MDevelops advanced quantum computing solutions for enterprise and government 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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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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Quantum Motion49Quantum ComputingLondon, United Kingdom$181.0MSilicon transistor-based quantum computing.
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Develops quantum computing systems for solving complex problems.
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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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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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Pawsey41Quantum ComputingPerth, Australia$100.7MAustralian research supercomputing centre exploring quantum computing.
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OpenAI86Artificial IntelligenceSan Francisco, United States$190.6BOpenAI is an AI research and deployment company dedicated to ensuring that artificial general intelligence benefits all of humanity.
- Website Quantum Diving10Quantum ComputingTel Aviv, Israel
Quantum Diving is developing a quantum computing platform for complex simulations and data analysis.
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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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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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Quantbee6Quantum ComputingExploring the future of technology with quantum computing and AI.
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Classiq61Quantum ComputingTel Aviv, Israel$194.5MQuantum computing software platform for designing and optimizing quantum circuits.
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QBLOX61Quantum ComputingDelft, Netherlands$26.0MQblox provides modular hardware and software solutions for scalable quantum computer control.
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SparrowQuantum59Quantum ComputingCopenhagen, Denmark$32.8MSparrow Quantum develops and commercializes photonic quantum chip technology, delivering single photons on demand for quantum computing and communication.
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Quanscient59Quantum ComputingEspoo, Finland$10.3MCloud and quantum-powered multiphysics simulation platform for faster R&D and product development.
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