Proxima Fusion
PrivateLast Round
Early Funding
Jul 7, 2026
Est. Valuation
$2.7B
Total Funding Raised
$205.44M
Momentum
Top 1%
of companies Caplight tracks
Company Overview
Proxima Fusion operates in Energy & Sustainability and is based in Munich. Its latest recorded funding round was a Series A Extension round in September 2025.
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
B2B
Customer Profile
Government Contracts
AI Layer
Infrastructure
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 |
|---|---|---|
| Gauss Fusion | 88% | |
| Type One Energy Group | 83% | |
| Renaissance Fusion | 82% |
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Proxima Fusion Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Early Funding | Jul 7, 2026 | ||||
| Series A Extension | Sep 9, 2025 | ||||
| Series A | Jun 11, 2025 | ||||
| Grant | Jul 15, 2024 | ||||
| Seed | Apr 10, 2024 | ||||
Pre Seed | Nov 16, 2023 |
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Key People
Founding team and executive leadership
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Proxima Fusion Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| SKion GmbH | Early Funding |
| East X Ventures | Early Funding |
| Positron Ventures | Seed |
| European Innovation Council Fund | Grant, Early Funding, Series A Extension |
| DST Global | Early Funding |
| Elaia Partners | Early Funding, Series A |
| DeepTech & Climate Fonds | Seed, Early Funding, Series A |
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Market signals
Structured signals derived from secondary market and firmographic data.
- Nov 10, 2026
Plans announced for a $160 million factory in Lower Saxony, Germany.
- Nov 10, 2026
Reported valuation of approximately $2.7 billion.
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Recent news
Latest coverage and updates
- invests_into_assetsNov 10, 2026
Proxima Fusion GmbH plans a $160M factory in Germany, with its first phase targeting production of roughly 5,000 kilometers of high-temperature superconducting tape per year by 2030.
- is_developingOct 28, 2026
Proxima Fusion GmbH signs two agreements with Fujikura and Kyoto Fusioneering in Japan on Oct 28th '26 to develop superconducting materials and specialised reactor systems for its planned fusion reactors as it prepares to build a demonstration machine in Germany.
- is_developingOct 28, 2026
Proxima Fusion GmbH is developing stellarators that use twisted magnetic fields to confine plasma heated to extreme temperatures.
- partners_withOct 28, 2026
On Oct 28th '26, Proxima Fusion GmbH and Fujikura Ltd. sign an agreement to assess the technical, commercial, and economic feasibility of an HTS tape supply chain in Germany, including potential local manufacturing.
- is_developingOct 28, 2026
In Japan on Oct 28th '26, Proxima Fusion GmbH is developing critical technologies for commercial fusion power with Kyoto Fusioneering under a Memorandum of Understanding covering gyrotrons for plasma heating and fusion fuel-cycle technologies.
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Proxima Fusion Filings
Explore SEC and related filing metadata, where available.
| Type | Date | Amount Offered | Amount Sold | Filing | Pages | Download |
|---|
Filing documents are not displayed on this public page. Request access to learn about available coverage.
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Frequently Asked Questions
Common questions about Proxima Fusion's valuation, stock price, and market status.
Is Proxima Fusion a public or private company?
Proxima Fusion is a private company.
What is the current stock price of Proxima Fusion?
Proxima Fusion is a private company, so its shares have no public market price. Caplight tracks Proxima Fusion's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is Proxima Fusion worth (valuation)?
Proxima Fusion's valuation is estimated at $2.7B based on funding round data.
Can I buy Proxima Fusion stock?
Proxima Fusion shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was Proxima Fusion's last funding round?
Proxima Fusion's most recent funding round was Early Funding on July 7, 2026.
Who are the main investors in Proxima Fusion?
Key investors in Proxima Fusion include East X Ventures, State of Bavaria, Robert Bosch Venture Capital, Plural, UVC Partners.
Will Proxima Fusion IPO soon?
No public IPO plans have been announced for Proxima Fusion.
How can I track Proxima Fusion secondary market activity?
Caplight tracks bids, offers, and trades in Proxima Fusion's shares on secondary markets.