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Fuse Energy Technologies

Fuse Energy Technologies

Private
San Leandro, CaliforniaFrontier & Industrial Techhttps://www.f.energy/

Last Round

Series B

Dec 18, 2025

Est. Valuation

$5B

Total Funding Raised

$144.5M

Company Overview

Fuse Energy Technologies is a clean energy company that develops fusion energy technology and provides radiation effects testing services for government and commercial clients.

Sector

Frontier & Industrial Tech

Verticals

Defense Tech, Computing Hardware, Energy Storage

Business Model

B2B

Customer Profile

Services & Consulting, Government Contracts

AI Layer

Non-AI

Keywords

pulsed powerradiation testingradiation-as-a-serviceRaaSnuclear effects testingdefense techhardware resiliencepulsed power generatordeep techhard techaerospace testingsemiconductor testinghigh-energy physicsdefense infrastructuregovernment contracting

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Fuse Energy Technologies Comps

Public and private peers based on sector, stage, and business model.

Fuse Energy Technologies comps — public and private peers by sector, stage, and business model
CompanyStatusEst. ValuationRev Multiple
OpenAIPrivate$86.0B~40x
CoherePrivate$5.0B--
Competitor 1Public$XX.XBXXx
Competitor 2Public$XX.XBXXx

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Fuse Energy Technologies Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
Series BDec 18, 2025
Follow-on OfferingJul 24, 2025
Series ASep 12, 2024

Key People

Founding team and executive leadership

Doug Furman

Director of Strategic Partnerships Office of the CEO

Executive Team

Izabela Miric

Head of Special Projects, Office of CEO

Executive Team

JC B.

CEO Founder

Founding Team

Jonny Gannon

Special Advisor To The CEO

Executive Team

Fuse Energy Technologies Investors

Notable investors and investment history

Fuse Energy Technologies investors
InvestorRounds
Mantis Venture CapitalSeries A
Bracket CapitalSeries A
20VCSeries B
Buckley VenturesSeries A
Collaborative FundSeries B
Abstract VenturesSeries A
Lowercarbon CapitalFollow-on Offering, Series B

Market signals

Structured signals derived from secondary market and firmographic data.

  • Apr 14, 2026

    Building a new radiation testing facility in New Mexico.

  • Feb 23, 2026

    Job posting reveals 'Z-STAR' pulsed-power platform.

Fuse Energy Technologies Filings

SEC and related filings with document metadata.

Data table
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Fuse Energy Technologies Filings

SEC and related filings with document metadata.

Appears On

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Frequently Asked Questions

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Firmographic Details

HeadquartersSan Leandro, California
Employee Range53
Year Founded2019
Last FundingDec 18, 2025

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