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Energy Tech

FusionPower Energy

FusionPower Energy Raises $950M Series D to Transform Energy

Cambridge, MASeptember 14, 20251 min read
Total Raised
$950M
Valuation
$14.8B
Latest Round
Series D
Employees
750

FusionPower Energy

Commercial nuclear fusion reactors delivering clean, unlimited energy with breakthrough plasma containment technology achieving net energy gain.

$950M
Series D
Valuation
$14.8B
Headquarters
Cambridge, MA
Employees
750
Sector
Energy

About the Funding

FusionPower Energy has successfully raised $950M in a Series D funding round, bringing their total valuation to $14.8B. This significant investment will fuel the company's mission to complete first commercial fusion reactor, scale technology for grid deployment, and establish global partnerships.

Use of Funds

Complete first commercial fusion reactor, scale technology for grid deployment, and establish global partnerships

Company Overview

Commercial nuclear fusion reactors delivering clean, unlimited energy with breakthrough plasma containment technology achieving net energy gain.

Key Investors

  • • Bill Gates
  • • Jeff Bezos
  • • Google Ventures
  • • Breakthrough Energy

Founders

  • • Dr. Fusion Master
  • • Dr. Clean Energy

Previous Rounds

Series C
$550M
2024-05-20
Series B
$280M
2023-11-15
Series A
$120M
2022-08-30

Market Impact

This funding round positions FusionPower Energy as a leader in the Energy Tech space, with the capital to accelerate innovation and expand their market presence. The investment reflects growing confidence in energy solutions and the company's potential to transform the industry.

Company Info

Headquarters
Cambridge, MA
Founded
2021
Team Size
750
Last Round
$950M(Sep 2025)

Investors (4)

B
Bill GatesLead
Venture Capital
Leading investor in Energy Tech and technology companies
J
Jeff Bezos
Venture Capital
Leading investor in Energy Tech and technology companies
G
Google Ventures
Venture Capital
Leading investor in Energy Tech and technology companies
B
Breakthrough Energy
Venture Capital
Leading investor in Energy Tech and technology companies

Topics

Series D(267)Energy TechEnergyFundingSeptember 2025

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