British AI chip startup Fractile has raised $720 million in a Series C funding round, reaching a valuation of $7 billion with backing from the UK government, according to a person involved in the deal. The latest valuation places the company among Britain’s most valuable technology startups.
Based in London and Bristol, Fractile is developing specialised chips designed to accelerate AI inference, the process through which artificial intelligence models generate responses. The company says its technology can deliver faster processing performance while reducing energy consumption and operating costs.
The Series C round was led by Thrive Capital, Founders Fund, Lightspeed, and Redpoint, Fractile said. Other investors included Google’s venture capital arm CapitalG, BlackRock, DST Global, Elad Gil, Balderton, SV Angel, Britain’s Sovereign AI fund, and the British Business Bank.
The investment highlights growing support for Britain’s ambition to develop domestic AI infrastructure and reduce dependence on overseas suppliers for the computing power required to run artificial intelligence systems.
It also reflects increasing investor interest in the semiconductor hardware powering AI applications. Nvidia and a limited number of Asian semiconductor manufacturers currently dominate the market.
Meanwhile, the UK has made its ambition to become an AI superpower a central part of its economic strategy. The country aims to build on its strengths in AI research and chip design while retaining a greater share of the employment, investment, and economic value generated by the technology.
Commenting on the funding round, AI Minister Kanishka Narayan said, “For too long, Britain has produced some of the world’s best scientific ideas, only to see too much of the technology, industry, and wealth they create built elsewhere.”
“We are determined to change that.”
Although Britain is home to major chip designer Arm, whose technology powers billions of devices worldwide, its semiconductor manufacturing industry remains relatively small compared with those of the United States and Asian economies.
Fractile plans to launch its first commercial AI chip in 2027, marking its next step towards bringing its inference technology to market.
