Helion Energy
Helion Energy raises $425M Series F at $5.4B valuation
Quick Facts
Helion Energy: Series F Funding Round
Helion Energy has successfully raised $425M in Series F funding, reaching a valuation of $5.4B.
Company Overview
Fusion energy company developing clean electricity from nuclear fusion
Funding Details
The Series F round was led by Lightspeed Venture Partners, with participation from SoftBank Vision Fund 2, Sam Altman.
Company Information
- Headquarters: Everett, WA
- Founded: 2013
- Employees: 200+
- Category: CleanTech
Investment
Helion Energy plans to use the funds to accelerate product development, expand its team, and scale operations globally.
About the Investors
- Lightspeed Venture Partners: Verified investor in Series F
- SoftBank Vision Fund 2: Verified investor in Series F
- Sam Altman: Verified investor in Series F
Key Investors
About the Author

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