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Marathon Fusion Logo
Marathon Fusion Growth Score
57
CB Rank
29389
Heat Score
66
Marathon Fusion designs, engineers and scales next-generation technologies to enable the deployment of fusion power plants.
Founded
obfuscation
PrivateGrant San Francisco, California, United States1-10 www.marathonfusion.com/
Overview

Marathon Fusion
Total Funding
obfuscation
Growth Score
57
Heat Score
66

Total Funding
obfuscation
Grant raised
obfuscation
Growth Score57
-4 pts
in past quarter
Heat Score 66
-3 pts
in past quarter

Company Performance Metrics

Score
Trend
AI Content may contain mistakes and is not legal, financial or investment advice.Learn more.
Growth Score - The measure of growth based on company activity, operational metrics, and investments
Growth Trend - The change in the growth score over the given time period
Heat Score - The measure of the market interest, media activity, and Crunchbase profile activity
Heat Trend - The change in the heat score over the given time period
Learn More >
Recent Milestones
Raised Funding Round
Jan 1, 1970
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Raised Funding Round
Jan 1, 1970
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Raised Funding Round
Jan 1, 1970
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See more interactive data and historical milestones on desktop for the best experience

About Marathon Fusion

CB Rank
29389
Marathon Fusion designs, engineers and scales next-generation technologies to enable the deployment of fusion power plants.
Founded
obfuscation
PrivateGrant San Francisco, California, United States1-10 www.marathonfusion.com/

Funding Rounds

Grant
OBF
in
obfuscation
Seed
OBF
in
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Grant
OBF
in
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Details

Legal Name Marathon Fusion, Inc.
Operating Status Active
Company Type For Profit
About the Company
Marathon Fusion designs, engineers and scales next-generation technologies to enable the deployment of fusion power plants.
Predictions & Insights

Growth Prediction

See this Growth Prediction
Top Contributing Factors
Runway Speculation

Products & Services

Fusion Fuel Cycle Technology
Technology that uses fusion reactor neutrons to produce tritium and transmute mercury-198 into gold, sustaining fusion operation and generating valuable materials.

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  • Preview private company insights and predictions
Financials

Company Funding

Total Funding Amount 
obfuscation
Number of Funding Rounds 4
Unlock company funding data, including rounds, dates, amounts, and investors.
Announced Date  
Transaction Name  
Number of Investors  
Money Raised  
Lead Investors  
Funding Type  
obfuscation
Grant - Marathon Fusion Logo
Grant - Marathon Fusion
1
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US Department of EnergyGrant
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Grant - Marathon Fusion Logo
Grant - Marathon Fusion
1
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US Department of EnergyGrant
obfuscation
Grant - Marathon Fusion Logo
Grant - Marathon Fusion
1
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US Department of EnergyGrant
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Grant - Marathon Fusion Logo
Grant - Marathon Fusion
1
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US Department of EnergyGrant
obfuscation
Grant - Marathon Fusion Logo
Grant - Marathon Fusion
1
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US Department of EnergyGrant

Funding Rounds

Total Funding Amount 
obfuscation
Number of Funding Rounds 4
Unlock company funding data, including rounds, dates, amounts, and investors.
Announced Date  
Transaction Name  
Number of Investors  
Money Raised  
Lead Investors  
Funding Type  
obfuscation
Grant - Marathon Fusion Logo
Grant - Marathon Fusion
1
obfuscation
US Department of EnergyGrant
obfuscation
Grant - Marathon Fusion Logo
Grant - Marathon Fusion
1
obfuscation
US Department of EnergyGrant
obfuscation
Grant - Marathon Fusion Logo
Grant - Marathon Fusion
1
obfuscation
US Department of EnergyGrant
obfuscation
Grant - Marathon Fusion Logo
Grant - Marathon Fusion
1
obfuscation
US Department of EnergyGrant
obfuscation
Grant - Marathon Fusion Logo
Grant - Marathon Fusion
1
obfuscation
US Department of EnergyGrant

Investors

Unlock company funding data, including rounds, dates, amounts, and investors.
Investor Name  
Lead Investor  
Funding Round  
Partners  
US Department of Energy Logo
US Department of Energy
Yes
Grant - Marathon Fusion Logo
Grant - Marathon Fusion
—
US Department of Energy Logo
US Department of Energy
Yes
Grant - Marathon Fusion Logo
Grant - Marathon Fusion
—
US Department of Energy Logo
US Department of Energy
Yes
Grant - Marathon Fusion Logo
Grant - Marathon Fusion
—
US Department of Energy Logo
US Department of Energy
Yes
Grant - Marathon Fusion Logo
Grant - Marathon Fusion
—
US Department of Energy Logo
US Department of Energy
Yes
Grant - Marathon Fusion Logo
Grant - Marathon Fusion
—
Market Intelligence
People
View Profiles & Contacts
Headcount 1-10 Contacts 3
News

News and Press

News•Jul 28, 2025
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News•Jul 28, 2025
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News•Jul 28, 2025
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News•Jul 25, 2025
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Access a complete feed of recent news and press, from product launches to leadership changes.
Technology
View Tech Report

Monthly Web Visits

549
-17.32%
 in past month

IT Spend

$444.7KThis year, Marathon Fusion is projected to spend $444.7K on IT, according to Aberdeen.

Interest Signals

TopicSurge Score
Business Insider Logo
Business Insider
86
Cost of Living Calculator Logo
Cost of Living Calculator
84
Recommendation Engine Logo
Recommendation Engine
81

Active Website Tech Count

2Marathon Fusion is actively using 2 technologies for its website, according to BuiltWith. These include Common Crawl and  CommonCrawl Top 5m.
Sub-Organizations
Frequently Asked Questions

Where is Marathon Fusion's headquarters? Marathon Fusion is located in San Francisco, California, United States.Who invested in Marathon Fusion? Marathon Fusion has 9 investors including US Department of Energy and  Übermorgen Ventures.When was the last funding round for Marathon Fusion? Marathon Fusion closed its last funding round on
obfuscation
from a Grant round.Who are Marathon Fusion's competitors? Alternatives and possible competitors to Marathon Fusion may include Helion Energy, Thea Energy, and  SHINE Technologies.How much funding has Marathon Fusion raised to date? Marathon Fusion has raised
obfuscation
.
Who We Are
What We Do
Helpful Links
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