Helion
PrivateLast Round
Series F
1/28/2025
Est. Valuation
$5.4B
Total Funding Raised
$1B
Momentum Score
50 /100
Company Overview
Helion Energy is a clean energy company that develops patented plasma accelerator technology to produce low-cost, zero-carbon electricity through magneto-inertial fusion generators.
Sector
Energy & Sustainability
Verticals
Renewable Energy, Alternative Fuels, Clean Manufacturing
Business Model
B2B
Customer Profile
Usage-Based SaaS, Government Contracts
AI Layer
Non-AI
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Helion Comps
Public and private peers based on sector, stage, and business model.
Helion Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series F | 1/28/2025 | ||||
| Strategic | 9/27/2023 | ||||
| Series E | 11/5/2021 | ||||
| Series D | 9/22/2020 | ||||
| Series C | 1/1/2019 | ||||
Grant | 9/30/2015 |
Key People
Founding team and executive leadership
Helion Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Capricorn Investment Group | Series B, Series F, Series D, Series E, Series C |
| SoftBank Vision Fund 2 | Series F |
| Y Combinator | Series D, Series C, Series A, Series E |
| Cleantech Open | Grant |
| Mithril Capital Management | Series B, Series F, Series D, Series C, Series E, Series A |
| Lightspeed Venture Partners | Series F |
Market signals
Structured signals derived from secondary market and firmographic data.
- Jan 1, 2028
Aims to deliver fusion energy to the grid by 2028.
- Mar 23, 2026
In advanced talks to purchase electricity from the company.
Helion Filings
SEC and related filings with document metadata.
| Typed | Date | Amount Offered | Amount Sold | Filling | Pages | Download |
|---|---|---|---|---|---|---|
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Frequently Asked Questions
Common questions about Helion's valuation, stock price, and market status.
