£577m · Series C · AI · London, UK
London inference-hardware company Fractile has issued £577m of Series C preferred shares, according to Companies House filings analysed by Tech Funding News and The Cap Table. The filings show the shares were paid for in cash. Fractile has not publicly confirmed the round or disclosed the investors behind it.
The £577.4m total spans three share classes. Filings show £147.8m of Series C-1 shares, £37.4m of Series C-2 and £392.2m of Series C-3, with allotments made between 9 September and 23 October. An earlier Sifted report counted about £540m before the fuller set of filings was analysed.
Funding a chip before deployment
Fractile is building processors and complete systems for AI inference, the phase in which a trained model generates an answer. Its architecture places SRAM close to the transistors doing the calculations, aiming to reduce the time and energy spent moving data between memory and compute. That makes data movement, rather than model training alone, the commercial problem the company is trying to solve.
The company says some long inference workloads currently run at about 40 tokens per second and is targeting 1,200 tokens per second. That is a product goal, not a demonstrated production result. Tech Funding News reports that Fractile has not yet shipped a production chip and expects data-centre deployment in 2027.
The scale of the financing reflects the cost of moving from architecture to usable systems. Chip development requires engineering, verification, manufacturing commitments, software and customer integration before volume revenue arrives. Fractile’s multiple Series C classes were issued at different prices, so the filings establish new capital but do not support treating one headline share price as a complete, fully diluted valuation.
The 2027 delivery test
The Series C follows Fractile’s $220m Series B in May 2026. In its official announcement for that round, the company said the capital would accelerate its first chips and systems into customers’ hands. The new filings give Fractile substantially more runway, but the next proof point remains operational: working silicon, dependable software and deployments that show its memory-and-compute design can deliver the promised inference gains at data-centre scale.
Sources checked:
Tech Funding News reporting · The Cap Table filing analysis · Fractile Series B announcement · Tech.eu Funding Explorer deal record
Display date uses the 30 October 2026 reporting date for the complete £577m filing count; Fractile has not published a company announcement for the Series C.
