UK public investment bodies are backing chip developer Fractile alongside private investors in a Series C financing round. The November 11 government announcement identifies the Sovereign AI Venture Fund and British Business Bank among the participants, alongside CapitalG, Lightspeed and Redpoint.

The total round exceeds £500 million, and the announcement values the company above £5 billion. The round’s total is not the amount attributed to the two public investors; the release does not give their individual contributions.

Fractile operates across London and Bristol and is developing hardware and associated software for artificial intelligence. The government links its backing to a goal of retaining more computing expertise and industrial value in Britain. Claims about faster, less expensive and more energy-efficient computing describe the company’s development ambitions; the financing announcement is not an independent performance benchmark.