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Pacific Fusion

Pulser-driven inertial fusion

Ranked #4 in Best Fusion Energy Companies.

Pacific Fusion, based in Fremont, California, develops pulser-driven inertial fusion. In August 2026 it broke ground on a $1 billion research and manufacturing campus in Albuquerque, New Mexico, for its demonstration system.

Official website

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At a glance

Price fromCustom
Best forPartners following inertial fusion outside national labs

From Pacific Fusion's own website.

What stands out

  • Very large early funding
  • Funding released against technical milestones

Worth knowing

  • Young company
  • Demonstration system not yet built

How it ranks

Pacific Fusion is ranked 4th of 10 in Best Fusion Energy Companies (Lister Score 93.2).

#4 in Best Fusion Energy Companies · Lister Score 93.2

Pacific Fusion launched in October 2024 with more than $900 million in Series A funding led by General Catalyst..

RankBest Fusion Energy CompaniesScore
1Commonwealth Fusion Systems97.0
2Helion Energy95.8
3TAE Technologies94.5
4Pacific Fusion93.2
5Proxima Fusion92.0
6Type One Energy90.7
7Tokamak Energy89.4
8General Fusion88.1
9Zap Energy86.8
10Thea Energy85.4

Frequently asked questions

How does Pacific Fusion rank on Lister?

Pacific Fusion is ranked 4th of 10 in Best Fusion Energy Companies (Lister Score 93.2).

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#4 in Best Fusion Energy Companies
RANKED #4 ON LISTERBest Fusion Energy Companies