Quantum Motion's silicon-chip bet: $160M Series C, quantum in a box not a building

Quantum Motion builds full-stack silicon-based quantum computers: QPU, control stack, and software integrated; chips go through the GlobalFoundries 300mm wafer production line, with the goal of fitting directly into existing data-center racks.

Use electron spins in standard CMOS silicon as qubits, mass-produce in existing fabs, cut cost, footprint, energy by 100–1000x, making quantum a rack box.

In 2023, Bosch Ventures led an approximately USD 50 million Series B; in May 2026, it closed a USD 160 million Series C (co-led by DCVC and Kembara, with British Business Bank and Firgun participating), bringing cumulative funding to more than USD 200 million.

Founded in London in 2017 by Professor John Morton of UCL and Professor Simon Benjamin of Oxford (牛津), betting on the silicon spin quantum-dot route; about 30 employees in 2022, and after the approximately USD 50 million Series B in 2023 it began internationalising, establishing sites in Spain, Australia, and the United States.

In 2025, it deployed a full-stack silicon CMOS quantum computer at the UK National Quantum Computing Centre (NQCC): one- and two-qubit gates, entanglement, and stable measurement were completed within three standard server racks; it deepened cooperation with GlobalFoundries, connecting the roadmap to a 300mm wafer production line; employees grew from about 30 in 2022 to more than 120 in 2026; it was selected for the DARPA Quantum Benchmarking Initiative (量子基准计划) Stage B.

Still expanding: after the USD 160 million Series C in May 2026, it became the UK's most-funded quantum company, claiming it will commercialise 'utility-scale' silicon quantum processors; it has not yet delivered a commercial fault-tolerant machine, and mass production and commercial deployment are still in progress.

Reuse mature CMOS fabs and data centers; cost and energy figures persuade industrial capital.

Validate first: deploy prototype at UK NQCC, then use DARPA benchmarks to secure funding.

Diversify capital: industrial and institutional funds share long-cycle risk.

Risk in mass production: fault tolerance and yield unknown; funding cadence tied to roadmap.

Borrow mature supply chains: define qubits as a semiconductor problem to reuse fabs and data centers. Funding and performance hinge on the same narrative; validation cadence determines capital flow.

As of 2026-09-01: Quantum Motion remains on the eve of commercialisation—after the May 2026 Series C, it continues to advance 'utility-scale' silicon quantum processors and mass-production cooperation with GlobalFoundries; the full-stack prototype deployed at NQCC in 2025 is the current publicly validated milestone; a commercial fault-tolerant machine has not yet been delivered, and the company has not disclosed revenue or shutdown information.