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CMS advises Quantum Motion Technologies Limited on $160m Series C fundraising

13 May 2026 United Kingdom 2 min read

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CMS has advised Quantum Motion Technologies Limited (Quantum Motion), a leading silicon transistor-based quantum computing company, on its $160m Series C round to commercialise its scalable and energy-efficient approach to quantum computing.

The fundraising round is co-led by DCVC and Kembara, with participation from new investors, the British Business Bank and Firgun, alongside existing investors. The financing positions Quantum Motion to deliver utility-scale and commercially viable quantum computers that fit inside existing standard data centres and racks.

Quantum Motion’s silicon transistor-based approach uses the same technology used in every smartphone and laptop chip manufactured today. This enables the company to deliver utility-scale systems with a 100-fold reduction in cost and space requirements, and a 1,000-fold reduction in energy consumption compared to alternatives. Its systems are designed for deployment into standard data-centre racks, avoiding the need for bespoke facilities and the heavy energy overhead associated with alternative architectures.

Alongside the new investors DCVC, Kembara, British Business Bank and Firgun, the Series C round is joined by returning backers Oxford Science Enterprises, Inkef, Bosch Ventures, Porsche Automobil Holding SE and Parkwalk Advisors.

CMS Corporate Partner John Finnemore comments: “We are delighted to have advised Quantum Motion on this significant $160m Series C fundraising, which reflects strong investor confidence in its silicon transistor-based approach to quantum computing. Quantum Motion is at the forefront of developing commercially viable quantum computing technology, and this financing is an important milestone in supporting its next phase of growth. Thanks to our long-standing focus on the technology sector, CMS is excellently placed to support high-growth businesses such as Quantum Motion as they scale and commercialise innovative technologies.”

The CMS team was led by John Finnemore and included Chris Wilkinson, Alexandra Stuart and James Hall (Corporate).

With more than 1,400 lawyers in over 80 offices worldwide, including over 250 based in the UK, CMS’s Corporate practice has established itself as a leader in advising companies, investors and financial institutions on complex domestic and cross-border transactions. The team is experienced in advising high-growth technology companies and investors across the full corporate lifecycle, from early-stage fundraising through to later-stage financing, strategic investment, M&A and exit transactions.

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