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Energy

Commonwealth Fusion Systems

Commonwealth Fusion Systems raises $863M Series at $3.4B valuation

Devens, MAAugust 15, 20251 min read
Total Raised
$863M
Valuation
$3.4B
Latest Round
Series
Employees
400+

Commonwealth Fusion Systems: Series Funding Round

Commonwealth Fusion Systems has successfully raised $863M in Series funding, reaching a valuation of $3.4B.

Company Overview

Nuclear fusion startup developing experimental SPARC reactor for clean energy

Funding Details

The Series round was led by Nvidia, with participation from Google, Tiger Global.

Company Information

  • Headquarters: Devens, MA
  • Founded: 2018
  • Employees: 400+
  • Category: Energy

Investment

Commonwealth Fusion Systems plans to use the funds to accelerate product development, expand its team, and scale operations globally.

About the Investors

  • Nvidia: Verified investor in Series
  • Google: Verified investor in Series
  • Tiger Global: Verified investor in Series

Company Info

Headquarters
Devens, MA
Founded
2018
Team Size
400+
Last Round
$863M(Aug 2025)

Investors (3)

N
NvidiaLead
Lead Investor
Verified investor in Series
G
Google
Investor
Verified investor in Series
T
Tiger Global
Investor
Verified investor in Series

Topics

verified(3079)real-funding(3079)commonwealth-fusion-systemsenergyseriesdevens

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