Pacific Fusion

Inertial confinement fusion via pulsed-power architecture

Energy 📍 Fremont, CA Founded 2023

Current Valuation

Private

PRIVATE

Pacific Fusion is pursuing inertial confinement fusion via a pulsed-power architecture, leveraging National Nuclear Security Administration (NNSA) lineage and General Atomics manufacturing expertise. The company raised one of the largest Series A rounds in deep-tech history — $900M in October 2024, led by General Catalyst, with participation from Breakthrough Energy Ventures, Bill Gates, and Eric Schmidt; Stripe's Patrick Collison and General Catalyst's Hemant Taneja sit on the board. Capital is structured as milestone-based tranches, unlocking as specific technical goals (notably the demonstrator system) are achieved. Headquartered in Fremont, CA.

Company Profile

CEO

Will Regan

Founded

2023

Fremont, CA

Employees

~75

Total Raised

$900M

Growth

Largest Series A in fusion history; milestone-based capital unlock

Last Round

Series A — $900M (Oct 2024) · Lead: General Catalyst

IPO Status

private

Founders & Key People

Will ReganKeith LeChien

Investors

General Catalyst · Breakthrough Energy Ventures · Bill Gates · Eric Schmidt · Patrick Collison (board) · Hemant Taneja (board)

Products

Pulsed-power inertial confinement demonstrator system (in development)

Competitors

Commonwealth Fusion Systems · Helion Energy · TAE Technologies · Xcimer Energy · Zap Energy

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