Britain's taxpayer-backed AI fund buys into Fractile as the chipmaker's value jumps sixfold

01/11/2026
113
Abstract illustration of a glowing AI chip with gold circuit lines flowing outward over red, white and navy bands

The UK government's Sovereign AI fund is set to join a funding round of around $700m that values Fractile, a London maker of AI inference chips, at about $6.5bn, according to The Telegraph. Company filings already show £577m of new shares issued since September. Neither side will say how much public money is going in or at what price.

The British state is about to become a shareholder in one of Europe's most richly valued chip start-ups. Sovereign AI, the government's venture-style fund for domestic AI companies, is among the new investors in Fractile's latest round, The Telegraph reported on Sunday. The round is expected to raise about $700m and value the London company at around $6.5bn (£4.8bn). Earlier this year it was worth about $1bn.

The round is co-led by Silicon Valley investors Lightspeed and Redpoint, with Thrive Capital and Founders Fund taking part, the newspaper reported. Fractile and the government declined to comment on the terms.

What the filings show

Fractile has not formally announced the round, but Companies House records show how far the price has moved. According to an analysis of the filings by The Cap Table, the company has issued £577.4m of Series C preferred shares since 9 September, in three classes. The top tranche, worth £392.2m, was priced at £1,452.35 a share, 5.2 times the £278.37 that Series B investors paid in May. Two cheaper classes, priced at £801.54 and £707.25, were issued on 11 September, which means some investors got in on much better terms. Sifted first reported the filings on 29 October.

The filings do not name investors, so it is not yet clear which tranche the taxpayer is buying, or how big the stake is.

Bloomberg first reported in August that Fractile was in advanced talks to raise about $600m at a pre-money valuation of $6.5bn, after signing a deal to supply chips to Anthropic. Reports put that contract at about $250m.

A big bet for a small fund

Founded in 2022 by Oxford robotics researcher Walter Goodwin, Fractile designs chips for inference, the stage where a trained AI model answers queries. Its design puts memory right next to the compute, which the company says cuts the time and energy spent moving data compared with today's GPU systems. It has not yet shipped chips in volume.

For Sovereign AI, the deal is a test of its strategy. The unit was launched with £500m, Computing reported, and the Chancellor added £60m for direct equity investments in last month's AI package, according to GOV.UK. In August it backed another London inference-chip start-up, OLIX, its fifth equity investment. "Countries that build chips will build leverage," AI minister Kanishka Narayan said at the time.

The case for the investment is about keeping a strategic company anchored in Britain while US funds take most of the round. The risk is timing. A public fund is buying into a pre-revenue hardware company after a sixfold rise in valuation in a matter of months. This comes as investors are pulling back from some of the largest AI funding rounds. With the size and price of the stake undisclosed, taxpayers cannot yet judge whether the fund is getting a good deal.

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Britain's taxpayer-backed AI fund buys into Fractile as the chipmaker's value jumps sixfold

01/11/2026
113
Abstract illustration of a glowing AI chip with gold circuit lines flowing outward over red, white and navy bands

The UK government's Sovereign AI fund is set to join a funding round of around $700m that values Fractile, a London maker of AI inference chips, at about $6.5bn, according to The Telegraph. Company filings already show £577m of new shares issued since September. Neither side will say how much public money is going in or at what price.

The British state is about to become a shareholder in one of Europe's most richly valued chip start-ups. Sovereign AI, the government's venture-style fund for domestic AI companies, is among the new investors in Fractile's latest round, The Telegraph reported on Sunday. The round is expected to raise about $700m and value the London company at around $6.5bn (£4.8bn). Earlier this year it was worth about $1bn.

The round is co-led by Silicon Valley investors Lightspeed and Redpoint, with Thrive Capital and Founders Fund taking part, the newspaper reported. Fractile and the government declined to comment on the terms.

What the filings show

Fractile has not formally announced the round, but Companies House records show how far the price has moved. According to an analysis of the filings by The Cap Table, the company has issued £577.4m of Series C preferred shares since 9 September, in three classes. The top tranche, worth £392.2m, was priced at £1,452.35 a share, 5.2 times the £278.37 that Series B investors paid in May. Two cheaper classes, priced at £801.54 and £707.25, were issued on 11 September, which means some investors got in on much better terms. Sifted first reported the filings on 29 October.

The filings do not name investors, so it is not yet clear which tranche the taxpayer is buying, or how big the stake is.

Bloomberg first reported in August that Fractile was in advanced talks to raise about $600m at a pre-money valuation of $6.5bn, after signing a deal to supply chips to Anthropic. Reports put that contract at about $250m.

A big bet for a small fund

Founded in 2022 by Oxford robotics researcher Walter Goodwin, Fractile designs chips for inference, the stage where a trained AI model answers queries. Its design puts memory right next to the compute, which the company says cuts the time and energy spent moving data compared with today's GPU systems. It has not yet shipped chips in volume.

For Sovereign AI, the deal is a test of its strategy. The unit was launched with £500m, Computing reported, and the Chancellor added £60m for direct equity investments in last month's AI package, according to GOV.UK. In August it backed another London inference-chip start-up, OLIX, its fifth equity investment. "Countries that build chips will build leverage," AI minister Kanishka Narayan said at the time.

The case for the investment is about keeping a strategic company anchored in Britain while US funds take most of the round. The risk is timing. A public fund is buying into a pre-revenue hardware company after a sixfold rise in valuation in a matter of months. This comes as investors are pulling back from some of the largest AI funding rounds. With the size and price of the stake undisclosed, taxpayers cannot yet judge whether the fund is getting a good deal.

Sources

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