Quantum Motion extends Series C beyond $160M to scale silicon quantum chips
What's the deal? Silicon spin-qubit developer Quantum Motion has closed a Series C extension to accelerate industrial scale-up of its fault-tolerant quantum processors. DCVC and Kembara VCDealroom has a profile for this one. Try Dealroom → co-led the tranche, which builds on the company's initial $160 million Series C close.
Who else joined? New and returning backers include imecDealroom has a profile for this one. Try Dealroom →.ventures, Lansdowne PartnersDealroom has a profile for this one. Try Dealroom →, Sony Innovation FundDealroom has a profile for this one. Try Dealroom →, S3 VenturesDealroom has a profile for this one. Try Dealroom →, and InkefDealroom has a profile for this one. Try Dealroom →.
What's the endgame? Quantum Motion builds dense silicon spin-qubit chips using standard 300mm CMOS foundry processes rather than specialised manufacturing lines. That approach, it says, projects hardware costs in the single-digit millions of dollars per system, a 100-fold smaller rack footprint, and a 1,000-fold cut in energy use versus rival modalities.
Where's the money going? The capital funds custom silicon co-development with manufacturing partners including imec and GlobalFoundriesDealroom has a profile for this one. Try Dealroom →, plus technical work under Stage B of the Defense Advanced Research Projects Agency's Quantum Benchmarking Initiative.
Expanding abroad: The round also backs Quantum Motion's international growth, including a new US research laboratory in Maryland. The move places the UK company closer to the DARPA programme funding part of its roadmap.
Why now? The financing follows the delivery of Quantum Motion's commercial full-stack system to the UK National Quantum Computing CentreDealroom has a profile for this one. Try Dealroom →, letting it expand deployments off that milestone. Chief executive officer James Palles-Dimmock leads the effort.
The signal: By leaning on commercial semiconductor supply chains rather than bespoke fabrication, Quantum Motion is betting that cost and manufacturability — not just qubit counts — decide which quantum hardware reaches industrial scale.
Image credit: Generated with Gemini
