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Back to The Report
Fundraising

Helion Energy

Helion Energy Raises $425 million in Series F

425 million
Total Raised
Series F
Latest Round
2013
Founded
300+
Employees
Everett WA
Updated January 28, 2025
2 min read

Quick Facts

Valuation
$5.425 billion valuation
Latest Round Size
425 million
Latest Round Date
January 2025

Helion Energy Raises $425 million in Series F


Helion Energy has successfully raised $425 million in a Series F at a $5.425 billion valuation led by Lightspeed Venture Partners.


Company Overview


Helion Energy is a CleanTech company headquartered in Everett WA, founded in 2013 with 300+ employees.


Helion Energy is an American fusion research company that recently began operating its 7th generation prototype Polaris expected to demonstrate the first electricity produced from fusion. The company has agreed to provide 50 MWe to Microsoft starting in 2028 which is the first commercial agreement for fusion energy.


Fundraising Details


  • Amount Raised: $425 million
  • Round Type: Series F
  • Valuation: $5.425 billion valuation
  • Date: 2025-01-28
  • Investors: Lightspeed Venture Partners and SoftBank Vision Fund 2 and Sam Altman and Mithril Capital and Capricorn Investment Group

About Helion Energy


Helion Energy is an American fusion research company that recently began operating its 7th generation prototype Polaris expected to demonstrate the first electricity produced from fusion. The company has agreed to provide 50 MWe to Microsoft starting in 2028 which is the first commercial agreement for fusion energy. The company is positioned in the CleanTech sector, serving a growing market with innovative solutions.


Key Information


  • Headquarters: Everett WA
  • Founded: 2013
  • Team Size: 300+
  • Industry: CleanTech

What This Means


This funding round demonstrates strong investor confidence in Helion Energy's vision and execution. The capital will likely be used to:


  • Scale Operations: Expand the team and operational capacity
  • Product Development: Enhance existing products and develop new features
  • Market Expansion: Enter new markets and strengthen presence in existing ones
  • Technology Investment: Invest in infrastructure and technology capabilities

Industry Context


The CleanTech sector continues to attract significant investment as companies innovate to meet evolving market demands. Helion Energy's successful fundraising reflects the strong fundamentals and growth potential in this space.


Valuation Milestone


Reaching $5.425 billion valuation marks an important milestone for Helion Energy, positioning the company among notable players in the CleanTech industry.


Looking Ahead


With this new capital, Helion Energy is well-positioned to execute on its growth strategy and continue building innovative solutions in the CleanTech space. The company's trajectory will be one to watch as it deploys this funding to achieve its next phase of growth.


This fundraising news was reported on 2025-01-28. For more information about Helion Energy, visit their headquarters at Everett WA.

Key Investors

Lightspeed Venture Partners
Venture Capital
Investor in Helion Energy
SoftBank Vision Fund 2
Venture Capital
Investor in Helion Energy
Sam Altman
Venture Capital
Investor in Helion Energy
Mithril Capital
Venture Capital
Investor in Helion Energy
Capricorn Investment Group
Venture Capital
Investor in Helion Energy

Topics

Fundraising(2912)CleanTechSeries FHelion Energy2025

About the Author

Market Intelligence Team
Market Intelligence Team
Tracking the latest funding rounds and investment news from leading startups and growth companies

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