Quantum Motion Closes $160 Million Series C Co-Led by DCVC and Kembara to Scale Silicon-CMOS Qubits Into Standard Server Racks
London-based Quantum Motion has raised $160 million in Series C funding co-led by DCVC and Kembara to commercialize silicon-CMOS quantum processors that the company says fit in three standard server racks.
Overview
London-based quantum computing startup Quantum Motion announced a $160 million Series C funding round on May 7, 2026, co-led by DCVC and Kembara, according to The Quantum Insider. The company is building quantum processors using the same silicon-CMOS manufacturing technology that produces conventional smartphone and server chips, and the new round is meant to take its platform from a research milestone at the UK National Quantum Computing Centre (NQCC) into commercial deployment, as reported by Quantum Computing Report.
What We Know
Investors
The round was co-led by Palo Alto-based DCVC and Kembara, the deep-tech fund of Mundi Ventures, according to Quantum Computing Report. New investors British Business Bank and Firgun joined alongside returning backers Oxford Science Enterprises, Inkef, Bosch Ventures, Porsche Automobil Holding SE, and Parkwalk Advisors, per The Quantum Insider.
A companion piece from The Quantum Insider reports that Firgun Ventures is a $250 million fund and that Quantum Motion had previously raised £62 million in equity and grant funding, including a £42 million Series B led by Bosch Ventures and Porsche SE.
Technology
Quantum Motion’s approach uses silicon transistor-based qubits formed from quantum dots that trap single electron spins, operating below 1 Kelvin, according to Quantum Computing Report. The company integrates qubits and their control circuitry on the same die; its Hoxton readout chip reads qubit output with 100 times higher sensitivity than competing super-inductor approaches, as reported by SiliconANGLE.
Quantum Motion claims its platform delivers a 100-fold reduction in cost relative to industrial-scale architectures and a 1,000-fold reduction in energy consumption compared to bespoke, multi-megawatt facilities, according to Quantum Computing Report. The company has a manufacturing partnership with GlobalFoundries to produce qubit chips on 300mm wafer production lines, per the same source.
NQCC deployment
In 2025, Quantum Motion deployed what The Quantum Insider describes as “the world’s first full-stack quantum computer on standard silicon chips, now deployed at the National Quantum Computing Centre (NQCC).” According to SiliconANGLE, the machine is the size of three server racks, with the processor itself measuring a few millimeters across. Quantum Computing Report adds that the NQCC system has demonstrated single- and two-qubit gates, entanglement, and measurement.
DARPA program
Quantum Motion is one of 11 companies selected by the U.S. Defense Advanced Research Projects Agency to advance to Stage B of the Quantum Benchmarking Initiative, according to The Quantum Insider.
Company
Quantum Motion is led by CEO Dr. James Palles-Dimmock, CTO Dr. John Morton, and CSO Dr. Simon Benjamin, according to The Quantum Insider. The company is headquartered in London with laboratories and offices in Spain and Australia opened since 2023, per Quantum Computing Report, which adds that the workforce has grown from approximately 30 employees in 2022 to over 120 by 2026.
Quotes
Dr. Palles-Dimmock framed the strategy in SiliconANGLE: “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.”
Dr Kris Naudts, co-founder of Firgun Ventures, commented in The Quantum Insider: “Scaling quantum computers is critical to unlocking the power that could help solve some of the world’s biggest challenges, from secure communications to breakthroughs in healthcare and climate science.”
What We Don’t Know
Neither the Series C announcement nor the accompanying coverage discloses the post-money valuation or the size of stakes taken by individual investors, and the published materials do not specify a target qubit count for the next-generation processor. Time-to-commercial-availability for systems beyond the NQCC deployment is not stated. The 100-fold cost and 1,000-fold energy figures cited by Quantum Motion are forward-looking comparisons against unspecified “industrial-scale architectures” and “bespoke, multi-megawatt facilities” rather than benchmark results against specific competing systems, per Quantum Computing Report.
DARPA’s Quantum Benchmarking Initiative criteria for advancing past Stage B, and the timeline for any subsequent stages, are not detailed in the funding announcement materials.