Company profile
Oxford Quantum Circuits
Thames Valley company designing and fabricating superconducting qubit processor chips, including wafer-scale packaging of large quantum processor dies.
Company overview
Oxford Quantum Circuits (OQC) designs and builds quantum computers, offering access to them through its Quantum-Compute-as-a-Service (QCaaS) platform. The company develops application-optimised quantum systems that integrate with classical high-performance computing to function as co-processors. OQC's technology is based on a proprietary architecture aiming for a high physical-to-logical qubit ratio, which it states reduces complexity and accelerates the path to fault-tolerant quantum computing. Based in the Thames Valley, the company is involved in the design, fabrication, and packaging of its superconducting quantum processors, with a public roadmap that includes scaling on 300mm wafers. As Europe’s first QCaaS provider, its systems are available via the cloud or can be deployed directly into commercial data centres. The company is privately held and has raised significant venture capital funding to support its growth.
Semiconductor activity
Primary capability: Quantum Semiconductor Devices. Supply-chain role: Design, Manufacturing, Packaging, Quantum-as-a-Service.
Technologies and capabilities
- Quantum
- Advanced Packaging
- Quantum Computing
- Superconducting Qubits
- Hybrid Computing
- Quantum Co-processors
- Wafers
Quantum Computers; Quantum Compute-as-a-Service (QCaaS); Cloud Access; Direct Access; APIs
Markets served
- Finance
- National Security
- Pharmaceuticals
- Advanced Materials
- Trading
UK presence
Reading. Part of the Thames Valley cluster.
Funding and transactions
The company has raised substantial private capital, including a reported funding round of $350m.
Sources and verification
Last verified: 2026-09-29