Fluidstack 🇺🇸 Hiring · 251 open roles ↗
Compute infrastructure supporting AI applications with massive compute clusters and rapid, scalable deployment.
About Fluidstack
Fluidstack provides a compute infrastructure designed to support AI applications, utilizing massive compute clusters and advanced technologies for rapid deployment and scalability. Their approach includes innovative cooling systems and off-grid solar power solutions to enhance efficiency and sustainability in data center operations.
Fluidstack is a US-based company founded in 2017, now around 529 people. It has raised $2.6B in disclosed funding. FundFinder classes it as AI & ML.
Founded by Gary Wu (Co-Founder; University of Oxford), Jamie Cox (Co-Founder; Chief Stategy Officer; repeat founder; previously Cashew, Heatherwick Studio; University of Oxford), César M. (Co-Founder; Imperial College London), Reaal Khalil (Co-Founder; repeat founder; previously IN[SCI]TE, Tessella; University of Oxford).
Its investors also appear on FundFinder's most-active lists for Series A · B2B (80 funds), Series A · Fintech (84 funds), Series A · AI (62 funds).
Company facts from Harmonic and public filings; team backgrounds from public profiles. Refreshed weekly.
Company snapshot
Fluidstack is a UK-founded AI compute company. It secures power, then designs, builds and runs data centres and cloud infrastructure for frontier AI labs such as Anthropic, including by converting former crypto-mining sites. It announced an $830M Series A at a $7.5B valuation in July 2026, then a reported $1.5B round led by Jane Street at about $18B in September 2026.
Hiring now · 251 live roles, checked daily
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Series A · $830M · Jul 2026
- Episode 1 Ventures — Episode1 Ventures invest in early-stage technology companies based in London, UK. · cheques £300k – £3M
- Seedcamp — Seedcamp is a London-based seed investor, founded in 2007, that calls itself Europe's original first-check investor and was the earliest backer of Revolut, Wise, UiPath and Synthesia. · cheques £140k – £700k
Funding history
● rounds tracked in this directory · ○ earlier rounds web-verified from public announcements. Amounts as announced; undisclosed rounds omitted.