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Pacific Fusion raises $900M Series A on pulsed magnetic confinement bet

Stealth-mode startup unveils itself with one of the largest Series A rounds in fusion history.

FREMONT, CA — May 31, 2026·By Marcus Holloway

Pacific Fusion exited stealth mode with a $900 million Series A, one of the largest Series A rounds ever recorded in the fusion sector. The round was led by General Catalyst with participation from Eric Schmidt's 1789 Capital and undisclosed strategic partners.

The company's approach uses pulsed magnetic compression of a deuterium-tritium target — a derivative of the Sandia Z-machine concept — and is led by CEO Eric Lander, formerly of the National Ignition Facility leadership team. Pacific Fusion plans to break ground on a 5 MJ pulser facility in Fremont in Q3.

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