Oxford Quantum Circuits (OQC) is a UK quantum-computing scaleup developing superconducting quantum systems. The company has raised $158M total: $40.5M Series A (2022) + $100M Series B (Nov 2023). Lansdowne Partners + British Patient Capital are among the lead backers (Source: OQC Newsroom; eeNews Europe).
OQC's proprietary Coaxmon 3D qubit architecture places qubit components on opposite sides of the substrate to simplify wiring and improve coherence — a variant of the transmon. The OQC Cloud offers a 32-qubit enterprise platform for compute-as-a-service (Source: eeNews Europe; DCD).
OQC published a 2025-2034 technical roadmap targeting ~200 logical qubits by 2028 and 50,000 logical qubits by 2034. In 2025 OQC integrated a real-time QEC decoder via Riverlane partnership — first of its kind in the UK (Source: OQC + Riverlane Press Release; eeNews Europe).
OQC today announced it has closed an oversubscribed £260 million ($350m) Series C funding round, Europe’s largest ever private funding round for a quantum computing company.
Source: oqc.techThe company has established a global quantum computing platform across Europe, North America and Asia, with systems deployed in the UK, US, Japan and Spain.
Source: oqc.techAs Europe’s first Quantum-Compute-as-a-Service (QCaaS) provider and the only company deploying quantum systems into commercial data centres, we are building the infrastructure to deliver quantum advantage.
Source: oqc.techOQC has set a new global benchmark with a two-qubit gate speed of just 25 nanoseconds: the fastest ever measured.
Source: oqc.techOur systems achieve a 1:1 physical-to-logical qubit ratio: an unprecedented level of efficiency.
Source: oqc.techBuild the enterprise quantum platform deployed via OQC Cloud + direct data-centre installations (Source: OQC Newsroom).
Proprietary 3D superconducting qubit design distinct from 2D transmon competitors (Source: eeNews Europe).
First UK quantum company to integrate a real-time QEC decoder in production (via Riverlane in 2025) (Source: OQC + Riverlane Press Release).
Europe + Asia + South America operations (Source: PitchBook, Feb 2026).
Public technical roadmap targeting 50,000 logical qubits by 2034 (Source: eeNews Europe).
Deep academic roots in quantum research from University of Oxford (Source: OQC.tech).
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