Helion
PrivateLast Round
Series G
Jun 4, 2026
Est. Valuation
$15.5B
Total Funding Raised
$1.49B
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 G | Jun 4, 2026 | ||||
| Series F | Jan 28, 2025 | ||||
| Strategic | Sep 27, 2023 | ||||
| Series E | Nov 5, 2021 | ||||
| Series D | Sep 22, 2020 | ||||
Series C | Jan 1, 2019 |
Key People
Founding team and executive leadership
Helion Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Anti Fund | Series G |
| SoftBank Investment Advisers | Series G, Series F |
| Capricorn Investment Group | Series B, Series F, Series D, Series E, Series C |
| Peak XV Partners | Series G |
| Thrive Capital | Series G |
| SoftBank Group | Series F |
| Lux Capital | Series G |
Market signals
Structured signals derived from secondary market and firmographic data.
- Jan 1, 2028
Aims to deliver fusion energy to the grid by 2028.
- Jun 4, 2026
$465M round led by Thrive Capital.
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.
