Quantum Motion is a UK-based quantum computing company building utility-scale quantum computers using industry-standard silicon transistors. Founded in 2017 by Prof. John Morton (CTO) of UCL and Prof. Simon Benjamin (CSO) of Oxford, and now led by CEO Dr James Palles-Dimmock, the company spun out of its founders' academic research to harness the same CMOS semiconductor technology behind today's smartphones and laptops for the manufacture of qubit arrays at commercial scale.

The company's architecture is based on silicon spin qubits, which trap single electrons in transistor-like quantum dot structures fabricated on standard 300mm CMOS wafers. By integrating qubits with classical control electronics capable of operating at deep cryogenic temperatures, Quantum Motion aims to deliver highly scalable systems with significant reductions in cost, footprint and energy consumption relative to alternative modalities. Its full-stack system, deployed at the UK National Quantum Computing Centre in 2025, was the first quantum computer built using mass-manufacturable 300mm silicon CMOS wafer technology, and fits within three 19-inch server racks suitable for standard data-centre deployment.

Headquartered in London with additional offices and labs in the US, Spain and Australia, Quantum Motion closed a $160 million Series C round in May 2026, co-led by DCVC and Kembara, with participation from the British Business Bank, Oxford Science Enterprises and Firgun Ventures, positioning Quantum Motion as one of the UK's leading quantum computing companies.