Quantum Motion secures £120m series C to build data‑centre silicon‑transistor quantum processors
This article covers Quantum Motion, a London-based quantum computing startup, which has raised £120m in a series C funding round. The funding is intended to accelerate its silicon transistor approach to quantum processors designed for standard data centre racks, supporting organisations planning AI and high-performance computing deployments.
Quantum Motion, a London-based quantum computing company, has raised £120 million in a series C funding round to accelerate its silicon transistor approach to quantum processors — systems the company says are engineered to fit inside standard data centre racks and to cut space, cost and energy compared with other quantum architectures. The deal underlines investor interest in solutions that prioritise deployability and lower infrastructure overhead as demand for high-performance computing and AI grows.
Why it matters
The size of the round signals renewed appetite for commercial quantum hardware that can integrate with existing data centre infrastructure rather than requiring bespoke facilities. Quantum Motion’s silicon transistor strategy, if it delivers at scale, could address two pressing constraints for compute-heavy sectors: energy consumption and the physical footprint of systems. That matters for organisations planning AI and high-performance computing deployments that cannot easily add multi-megawatt power or custom sites.
The announcement also illustrates a broader investor focus on technologies promising practical, near-term deployment paths rather than laboratory demonstrations alone.
Inside the product
Quantum Motion builds quantum processors using silicon transistor and CMOS-compatible fabrication techniques — the same manufacturing base behind conventional chips. The company states these systems offer a 100-fold reduction in cost and space requirements and a 1,000-fold reduction in energy consumption versus some alternative quantum approaches, while avoiding the need for bespoke high-energy facilities.
Progress to date includes the commercial deployment of a full-stack silicon CMOS quantum computer at the UK National Quantum Computing Centre in 2025, advancement to Stage B of DARPA’s Quantum Benchmarking Initiative, and a deeper manufacturing partnership with GlobalFoundries. Since its last round in 2023, the company has expanded with new offices and labs in Spain and Australia, moves that suggest growth in engineering and manufacturing capability as it pushes toward larger systems.
Who are the investors?
The series C round totals £120 million and is led by DCVC and Kembara, with participation from the British Business Bank and Firgun. The public backing from the British Business Bank signals government-aligned interest in domestic quantum capability, while the participation of specialist and institutional backers highlights appetite from multiple investor types.
In the announcement, Prineha Narang, Partner at DCVC, said:
Quantum is critical infrastructure for the next century of computing, AI, and security, and leadership will go to whoever can industrialise it. DCVC led this investment in Quantum Motion because silicon is the foundation that scales, and this team is building on the CMOS advantage to turn quantum from a demonstration into a commercial success story.
In the announcement, Yann de Vries, Partner at Kembara, said:
If you believe quantum computing is going to be world-changing, as we do, then the obvious next question is which of the many ways of building one will actually work at scale? This investment signals our strong belief in where the answer lies.
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Founder perspective
In the announcement, James Palles-Dimmock, Co-founder & CEO at Quantum Motion, said:
Today's announcement reflects the strength of the team we have built and the progress they have delivered. Quantum computing will only achieve its full potential if it can be built on a platform that scales, and we believe silicon is the strongest route to achieving that. We are pleased to be joined by investors who share our vision and understand what it takes to build a foundational company in this field.
In the announcement, John Morton, Co-founder & CTO at Quantum Motion, said:
As founders we were inspired by the breathtaking accomplishments of silicon technology, with city-like complexity delivered on centimetre scale chips. Now, Quantum Motion’s chips can be used not only for bits but also for qubits, unlocking a future in which quantum computers are both fast and ubiquitous.
The founders frame the company’s strategy as industrialisation: moving from demonstrations to reproducible, manufacturable hardware that can be integrated into existing compute ecosystems.
The bigger picture
Quantum Motion’s emphasis on silicon and CMOS compatibility places it in a subset of the quantum hardware market pursuing industrial-scale manufacturing pathways. That contrasts with approaches that currently rely on specialised cryogenic or bespoke infrastructure and which could face higher barriers to widespread deployment due to power, space and site requirements.
The deal also reflects how public and private capital are aligning around projects that promise interoperability with established semiconductor supply chains. The GlobalFoundries partnership and the UK National Quantum Computing Centre deployment are tangible signs of that alignment.
Broader adoption of energy-efficient quantum hardware would influence how data centres evolve and could reshape procurement choices for organisations planning AI and high-performance compute capacity across Europe. The involvement of the British Business Bank underscores UK policy interest in keeping core quantum capabilities onshore while private capital pushes commercialisation.
Quantum hardware remains an early market with technical and commercial risks, but this round highlights growing investor conviction in routes that prioritise manufacturability and data centre compatibility as the next stage of scaling quantum technology across the UK and Europe.
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