Fluidstack Plans $1 Billion Funding Round Amid Rapid Growth to $18 Billion Valuation

Wed, 15 Apr 2026 07:26:00 +0200

Fluidstack, a startup specializing in AI-focused data centers, is reportedly negotiating a $1 billion funding round at an $18 billion valuation, more than doubling its reported value from December, when it was raising $700 million at $7.5 billion. The round could potentially be led by Jane Street, with prior interest from Google contributing $100 million. Fluidstack has gained attention through a significant $50 billion deal with AI company Anthropic to build custom data centers in Texas and New York, reflecting a growing need for specialized infrastructure beyond general cloud services like AWS or Google Cloud. The company has relocated its headquarters from the U.K. to New York to focus on U.S. opportunities and recently withdrew from a €10 billion AI project in France. Other clients include Meta, Poolside, and Black Forest Labs, with prior work for Mistral. Fluidstack was originally spun out of Oxford and has become a rising star in the AI infrastructure sector. The startup did not