Quantum Motion secures $160 million to scale silicon-based quantum computing

Quantum Motion has raised $160 million in Series C financing to accelerate the commercialisation of its silicon-based quantum computing technology, betting that the same platform behind modern semiconductors can unlock scalable, energy‑efficient quantum machines that fit into standard data centres.

The round was co-led by DCVC and Kembara, with new investors including the British Business Bank and Firgun joining alongside existing backers. The company said the capital will speed development of quantum computers designed to operate within conventional data centre environments, an approach it argues could ease some of the energy and infrastructure burdens that have complicated other quantum architectures.

Quantum Motion’s technology uses silicon transistors—the building blocks of today’s chips—to host qubits. According to the company, leveraging established semiconductor processes could make quantum systems more practical and scalable, significantly reducing cost, size and power demands compared with alternative methods.

Its goal is to build hardware that fits into standard racks without the specialised facilities typically associated with quantum equipment. Since its previous funding round in 2023, the company has expanded internationally, opening offices and laboratories in Spain and Australia.

It has also deepened its collaboration with GlobalFoundries, aligning its roadmap with established semiconductor manufacturing supply chains. Quantum Motion said that in 2025 it reported deploying a full‑stack silicon CMOS quantum computer at the UK National Quantum Computing Centre and is now progressing through Stage B of DARPA’s Quantum Benchmarking Initiative.

“This announcement reflects the strength of the team we have built and the progress they have delivered,” said chief executive Dr James Palles‑Dimmock, who argued that quantum computing will only reach its potential on a platform that can scale, with silicon offering the strongest route.

Co‑founders Dr John Morton, chief technology officer, and Dr Simon Benjamin, chief science officer, said they drew on the achievements of silicon in delivering immense complexity on centimetre‑scale chips and now see those chips carrying qubits as well as bits.

Investors framed the raise as part of a broader race to industrialise quantum technology. “Quantum is critical infrastructure for the next century of computing, AI and security, and leadership will go to whoever can industrialise it,” said Dr Prineha Narang, operating partner at DCVC.

Charlotte Lawrence, managing director of direct equity at the British Business Bank, said Quantum Motion’s blend of advanced quantum physics and established silicon manufacturing shows the industry is moving from theorising to building platforms in the UK.

The funding underscores intensifying global interest in next‑generation computing, as governments and industry pour resources into high‑performance computing and artificial intelligence. Quantum Motion is positioning its silicon‑based approach as a route to bring quantum hardware closer to the realities of modern data centre infrastructure.