Quantum Motion, a developer of silicon transistor-based quantum computers, has successfully closed a $160 million Series C funding round. The investment was co-led by DCVC and Kembara, with participation from the British Business Bank, Firgun, and existing backers including Bosch Ventures and Porsche Automobil Holding SE. This financing establishes Quantum Motion as the UK’s best-funded quantum computing company and is intended to accelerate the commercialization of utility-scale systems that leverage existing CMOS (Complementary Metal-Oxide-Semiconductor) manufacturing processes.
Quantum Motion, a developer of silicon transistor-based quantum computers, has closed a $160 million Series C funding round. The investment was co-led by DCVC and Kembara (the deep-tech fund of Mundi Ventures), with significant new participation from the British Business Bank and Firgun. The round also saw full support from existing investors, including Oxford Science Enterprises, Inkef, Bosch Ventures, Porsche Automobil Holding SE, and Parkwalk Advisors. This financing positions Quantum Motion as the UK’s best-funded quantum computing company and is intended to accelerate the commercialization of utility-scale systems that utilize existing CMOS manufacturing processes.
The Silicon Transistor Advantage
Quantum Motion’s architecture is built on the premise that quantum information can be processed using the same silicon transistor technology found in modern smartphones and laptops. By utilizing quantum dots to trap single electron spins, the company can manufacture qubits within standard semiconductor foundries. This approach offers a significant reduction in physical and resource overhead compared to other modalities; the company reports a 100-fold reduction in cost and space requirements and a 1,000-fold reduction in energy consumption relative to industrial-scale architectures that require bespoke, multi-megawatt facilities.
Deployment and Manufacturing Integration
The Series C follows the 2025 deployment of a full-stack silicon CMOS quantum computer at the UK National Quantum Computing Centre (NQCC). This system demonstrated single and two-qubit gates, entanglement, and reliable measurement within a footprint of only three standard server racks. To ensure a scalable supply chain, Quantum Motion has deepened its manufacturing partnership with GlobalFoundries, allowing its roadmap to integrate directly into commercial 300mm wafer production lines. This strategy aims to deliver “utility-scale” processors that fit within existing data center racks rather than requiring dedicated buildings.
International Expansion and Talent Growth
Since 2023, Quantum Motion has expanded its global operations, opening new laboratories and offices in Spain and Australia to complement its London headquarters. The company’s workforce has grown from approximately 30 employees in 2022 to over 120 in 2026, comprising a multi-disciplinary team of IC engineers, quantum theoreticians, and hardware specialists. This growth supports the company’s participation in international benchmarks, such as Stage B of DARPA’s Quantum Benchmarking Initiative, which evaluates the transition of quantum systems from laboratory science to industrial practice.
The Path to Ubiquitous Quantum Computing
By operating its silicon QPUs at temperatures below 1 Kelvin, Quantum Motion utilizes a thermal regime that allows for continuous operation and efficient heat removal using standard commercial cryostats. The company’s “transistor moment” refers to the transition where quantum chips achieve the same component density and complexity as classical processors. CEO Dr. James Palles-Dimmock noted that the objective is to provide fast, fault-tolerant quantum computing in a “box, not a building,” enabling a wide range of applications in drug discovery, materials science, and finance to be deployed within existing IT infrastructures.
You can find the official announcement regarding Quantum Motion’s Series C funding here and a detailed technical perspective on the benefits of silicon-based quantum computing here.
May 7, 2026
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