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Clean Energy

Pacific Fusion

Pacific Fusion Raises $900M Series A

$900M Series A
Total Raised
2023
Founded
50-100
Employees
Fremont, CA
Updated October 23, 2025
2 min read

Quick Facts

Valuation
Undisclosed

Pacific Fusion Raises $900M Series A

Fremont-based nuclear fusion startup pursuing pulsed magnetic fusion technology to achieve net facility gain for clean energy generation

Key Highlights

  • Funding Amount: $900M Series A
  • Valuation: Undisclosed
  • Headquarters: Fremont, CA
  • Founded: 2023
  • Employees: 50-100
  • Total Raised: $900M

About the Funding Round

Pacific Fusion has successfully closed $900M Series A in funding, marking a significant milestone in the company's growth trajectory. This investment will enable the company to accelerate product development, expand market reach, and strengthen its position in the clean energy sector.

Investor Syndicate

The round was backed by a prestigious group of investors:

  • General Catalyst
  • Breakthrough Energy Ventures
  • Ken Griffin
  • Patrick Collison

This diverse group of investors brings not only capital but also strategic expertise and valuable networks that will help Pacific Fusion achieve its ambitious goals.

Market Opportunity

The clean energy market continues to experience rapid growth, driven by increasing demand for innovative solutions and digital transformation across industries. Pacific Fusion's unique approach and proven technology position it well to capture significant market share in the coming years.

Company Background

Founded in 2023 and headquartered in Fremont, CA, Pacific Fusion has established itself as an innovative player in the clean energy space. With 50-100 employees, the company has built a strong team focused on delivering exceptional value to customers.

Next Steps

With this new funding, Pacific Fusion plans to:

  • Accelerate product development and innovation
  • Expand into new markets and geographies
  • Grow the team across engineering, sales, and operations
  • Strengthen partnerships with key industry players
  • Scale infrastructure to support rapid growth

Industry Impact

This funding round represents a strong vote of confidence in Pacific Fusion's vision and execution. The investment will help drive innovation in the clean energy sector and create new opportunities for customers and partners.


For more information about Pacific Fusion, visit their website or contact their press office.

Key Investors

General Catalyst
Strategic Investor
Venture capital firm with early through growth stage investments
Breakthrough Energy Ventures
Venture Capital
Climate-focused fund backed by Bill Gates and others
Ken Griffin
Strategic Investor
Citadel founder investing in technology and science ventures
Patrick Collison
Strategic Investor
Stripe co-founder and active technology investor

Topics

CA(1700)Venture Capital(911)Series(545)Clean EnergyFunding Round

About the Author

Michael Torres
Michael Torres
Former startup founder turned investment analyst, focusing on early-stage technology and consumer companies.

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