Proxima Fusion
PrivateLast Round
Series A
Extension
Jul 7, 2026
Est. Valuation
$2.7B
Total Funding Raised
$827.44M
Momentum
Top 1%
of companies Caplight tracks
Company Overview
Proxima Fusion is a clean energy company that develops fusion power plants utilizing quasi-isodynamic (QI) stellarators to generate emissions-free electricity.
Sector
Energy & Sustainability
Verticals
Renewable Energy, Advanced Materials, Smart Grid, ML Platforms
Business Model
B2G
Customer Profile
Government Contracts
AI Layer
Infrastructure
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Proxima Fusion Comparables
Compare Proxima Fusion with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Type One Energy Group | 88% | |
| Renaissance Fusion | 84% | |
| Thea Energy | 82% | |
Proxima Fusion Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series A Extension | Jul 7, 2026 | ||||
| Series A Extension | Sep 9, 2025 | ||||
| Series A | Jun 11, 2025 | ||||
| Series A | Jun 11, 2025 | ||||
| Grant | Jul 15, 2024 | ||||
Seed | Apr 10, 2024 |
Key People
Founding team and executive leadership
Proxima Fusion Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| SKion GmbH | Series A Extension |
| East X Ventures | Series A Extension |
| Positron Ventures | Seed |
| European Innovation Council Fund | Grant, Series A Extension |
| DST Global | Series A Extension |
| Elaia Partners | Series A Extension, Series A |
| DeepTech & Climate Fonds | Seed, Series A Extension, Series A |
Market signals
Structured signals derived from secondary market and firmographic data.
- Jul 7, 2026
$472M raised in early funding round.
- Mar 4, 2026
Partnering with Paul Scherrer Institute for new hires.
Proxima Fusion 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 Proxima Fusion's valuation, stock price, and market status.