British AI chip startup hits £5bn valuation as government backs bid to challenge global tech giants

London and Bristol-based Fractile raises more than £500 million to develop faster, cheaper AI processors, with ministers hoping to reduce Britain’s dependence on overseas technology

A British tech startup developing a new generation of artificial intelligence chips has been valued at more than £5 billion after securing over £500 million in fresh investment, including backing from the UK government.

Fractile, which operates in London and Bristol, is developing processors designed to make AI systems faster, cheaper and more energy-efficient, potentially challenging the dominance of established international chipmakers.

The firm has attracted investment from the government’s Sovereign AI fund and the British Business Bank as part of a Series C funding round involving major venture capital firms CapitalG, Lightspeed and Redpoint.

Yesterday’s announcement comes as ministers attempt to establish Britain as a leading developer of the hardware underpinning the global AI industry.

Fractile is taking a different approach to conventional chip development by redesigning the entire computing system, combining specialist processors with software and machine-learning research.

The company says its technology could enable AI systems to handle more complex workloads while consuming less energy and reducing operating costs.

The investment also represents a significant boost for Bristol’s technology sector, with Fractile planning to expand its presence in the city.

AI Minister Kanishka Narayan said Britain had historically struggled to retain the commercial benefits of its scientific breakthroughs.

“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,” he said.

“We are determined to change that. If AI is going to serve the British people, strengthen our public services and create good jobs across the country, Britain needs to build more of the technology that powers it.”

He added: “Fractile represents the very best of British ambition, bringing together world-class chip design, engineering and AI expertise to develop faster, cheaper and more energy-efficient hardware.”

The funding comes amid growing international competition for control of advanced AI technology, with companies and governments investing heavily in specialised processors and computing infrastructure.

Britain remains heavily dependent on overseas suppliers for the chips used in advanced AI systems, making domestic hardware development an increasingly important part of the government’s industrial strategy.

Business Secretary Jonathan Reynolds said: “Fractile is a fantastic British success story. This fundraising news, backed by the British Business Bank and Sovereign AI, will boost our ability to make the chips and cutting-edge tech powering AI here at home.”

He added: “With plans to expand their presence in Bristol, Fractile are helping to put our plans for reindustrialisation into action – delivering the good jobs and growth that will benefit communities across the country and drive our economy forward.”

The announcement follows a further £140 million commitment to Sovereign AI in the recent Budget, comprising £60 million for investments and £80 million for research and development procurement.

The government has also outlined plans for up to £2 billion in investment to strengthen Britain’s AI computing infrastructure over the coming years.

Joséphine Kant, investment partner at Sovereign AI, said: “Walter and the team at Fractile are taking on an ambitious challenge, with the potential to make a significant contribution to the global future of AI hardware.”

Leandros Kalisperas, the chief investment officer of the British Business Bank, added: “This is British innovation at its best – exceptional technical minds focused on building technology that can compete and win on a global stage.”

READ MORE: Scientists grow world’s largest diamond crystal in breakthrough that could stop AI chips overheating. American technology firm Diamond Foundry has produced an eight-inch diamond that could help make computers faster and more powerful, with a multi-billion-euro project in Spain aiming to bring the technology into mass production.

Do you have news to share or expertise to contribute? The European welcomes insights from business leaders and sector specialists. Get in touch with our editorial team to find out more.

_{Main image: Microchips like the one pictured are at the heart of the global AI revolution. British startup Fractile has secured more than £500 million in funding, reaching a valuation of over £5 billion as it develops a new generation of faster, more energy-efficient AI processors. Credit: ClickerHappy / Pexels.}