Side-by-side comparison of AI visibility scores, market position, and capabilities
UK-based quantum computing company providing cloud access to superconducting processors using proprietary Coaxmon 3D qubit architecture; first commercial quantum computer provider in UK; available via AWS Braket and Toshiba-backed European quantum cloud.
Oxford Quantum Circuits (OQC) is an Oxford-based quantum computing company that develops superconducting quantum processors using a proprietary qubit architecture called Coaxmon, which stores quantum information in a 3D structure rather than a flat 2D chip, enabling better qubit isolation and higher fidelity. OQC provides cloud access to its quantum processors through its Toshiba-backed cloud service and through AWS Braket, making it accessible to enterprise and research customers globally without on-premises quantum hardware. The company was the first commercial quantum computer provider in the UK and has established a European quantum computing cloud to serve enterprise and government customers requiring data residency within the EU. OQC focuses on hardware improvements that demonstrate a clear path to fault-tolerant quantum computing rather than maximizing near-term qubit count. Founded in 2017 as a spinout from Oxford University, OQC has raised over $100M from investors including Toshiba and SoftBank, and positions itself as the European alternative to IBM and Google in the quantum computing cloud market.
Full-stack quantum computing company (Nasdaq); Berkeley-based; Quantum Cloud Services provides low-latency access with proprietary Quil language; targeting near-term quantum advantage.
Rigetti Computing is a Berkeley-based quantum computing company that builds superconducting quantum processors and develops the full software stack for programming, simulating, and running quantum algorithms. Rigetti's Quantum Cloud Services (QCS) platform provides low-latency access to its quantum processors — an important differentiator given that quantum computations require rapid classical-quantum communication for near-term algorithms. The company's Quil programming language and Forest SDK provide developers with tools for writing hybrid quantum-classical programs. Rigetti went public via SPAC merger in 2022 and trades on Nasdaq. The company focuses on near-term quantum advantage in chemistry simulation, materials science, and optimization problems that are relevant to pharmaceutical and financial services customers. Founded in 2013 by former IBM Quantum researcher Chad Rigetti, the company has shipped multiple generations of quantum processors and operates quantum computing infrastructure for research institutions and early enterprise customers. Rigetti competes with IBM Quantum, IonQ, and Google in the quantum hardware and cloud services market.
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