Fractile's Series C Is £577 Million in Filings, £540 Million in Reports, and £37.4 Million Is the Gap

Fractile, the London AI chip startup founded by Walter Goodwin, has sold £577 million of Series C shares according to Companies House filings, TechFundingNews reported. A competing report puts the round at £540 million, and Nordic9 says the £540 million comes from official filings too. The company has not published a figure in anything we could read.

The two numbers differ by £37 million. The filings explain more than either headline does.

What the filings show

Nine SH01 allotment returns were filed on October 15 and October 28, covering shares sold between September 9 and October 23, TechFundingNews reported. They create three new share classes, set up by resolutions on September 11.

Class	Price per share	Raised
C-1	£801.54	£147.8 million
C-2	£707.25	£37.4 million
C-3	£1,452.35	£392.2 million

The three classes sum to £577.4 million. Remove the C-2 class and the total is £540.0 million. That arithmetic is ours, and no source says it explains the gap, but it is exact to the decimal. Nordic9 separately says £185 million of the round was priced at about half the £1,452 headline share price, which matches C-1 and C-2 together at £185.2 million.

About £450.5 million was allotted on September 11, per TechFundingNews, with the remainder arriving in smaller C-3 tranches. Allotments began two days before the share classes were created, a sequence the report flags without explaining.

Valuation: three numbers, no confirmed one

Bloomberg reported in August that Fractile was in talks to raise about $600 million at a $6.5 billion pre-money valuation, including some money invested at a lower valuation, The Next Web reported. The filings total, at about $1.34 to the pound, is roughly $774 million, about $174 million above that talks figure.

Nordic9 calculates something lower. Its body implies about £3.84 billion, or $5.14 billion, post-money on issued shares, though its header says £5 billion or more. None of the three is a confirmed Series C valuation.

The previous round was $220 million at about $1 billion in May, led by Accel, Founders Fund and Factorial Funds. Against that, the $6.5 billion talks figure is a 6.5-fold step-up, and the Nordic9 estimate is about 5.1 times. Nordic9 lists Lightspeed Venture Partners and CapitalG as co-leads, alongside Thrive Capital, Founders Fund, Redpoint, Balderton, Dragoneer, BlackRock, Accel and Factorial Funds. TechFundingNews does not name Series C investors, so the lead names rest on one source.

What the company has to sell

Fractile has not shipped a production chip and has disclosed no revenue, TechFundingNews said. It expects data centre deployment in 2027.

The commercial evidence is an initial agreement to sell roughly $250 million of chips to Anthropic, Bloomberg reported through The Next Web. Neither company commented, and neither has said how large the contract could grow. Anthropic is itself heading to market: see the $70 to $78 price range for its Nasdaq IPO. For how an established rival's silicon is being measured, see StorageReview's tests of Nvidia's Vera CPU.

The valuation per dollar of contracted revenue is the awkward number. At $6.5 billion pre-money, the company is priced at 26 times a $250 million order that has not been confirmed by either party and covers chips that do not yet exist in production.

Fractile also pledged £100 million over three years in February for UK expansion, including a hardware facility in Bristol, TechFundingNews said. Its seed was £12 million in July 2024.

The next filing to watch is the confirmation statement or accounts at Companies House, which would show whether the post-money share count supports the £3.84 billion estimate or the £5 billion header.