A startup nuclear fusion development company based in California has secured $900m (€832m) in Series A funding from high tech investors.

In a blog post, Pacific Fusion said the Series A funding round was led by General Catalyst, with participation from Breakthrough Energy Ventures and an A-list group of individual investors, including Citadel founder Ken Griffin, Stripe co-founder Patrick Collison, venture capitalist John Doerr and Mustafa Suleyman, the head of Microsoft Corp’s consumer AI business.

General Catalyst’s Hemant Taneja, former Google chief executive officer Eric Schmidt and Collison joined the company’s board of directors.