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Proxima Fusion
QI-HTS stellarator fusion company building Europe’s commercial fusion plants
About Proxima Fusion
Proxima Fusion is a Munich-based fusion company—and the first spin-out from the Max Planck Institute for Plasma Physics—developing commercial power plants based on quasi-isodynamic high-temperature-superconductor (QI-HTS) stellarators that build on Wendelstein 7-X science. It is advancing Alpha, a net-energy stellarator demonstrator near Munich with Bavaria, IPP and RWE, toward a first commercial Stellaris plant later in the 2030s, with offices in Zurich and Oxford and around 200 employees. In July 2026 Proxima raised €411 million ($468 million) at a €2.4 billion valuation led by XTX Ventures and East X Ventures, with strategic investors RWE and Google and participation from KfW Capital, SPRIND, Burda Principal Investments and returning backers including Plural, UVC Partners, Balderton, Cherry Ventures, Lightspeed and the EIC Fund—bringing total capital secured to more than €650 million including public grants. Sources: Proxima Fusion press, 7 Jul 2026; Tech.eu; CNBC.
Source: Dealroom company dataAt a glance
- Status
- Operational
- Founded
- 2023
- Headquarters
- Munich, Germany
- Employees
- 159
- Open positions
- 21
- Dealroom signal
- 95.4/100
- Sub-industry
- Clean Energy
- Sector
- Energy, Spinout, Sustainable Development Goals, EIC, Nuclear Fusion, EIC Fund, Climate Tech, Novel Energy, Horizon Europe, NIF defense security and resilience
- Technology
- Hardware, Deep Tech
- Business model
- Manufacturing
- Client focus
- b2b
Knowledge graph
More headlines
Funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| SERIES AOther financing | Sep 2025 | $17M | $715M | Brevan Howard Asset Management · CDP Venture Capital · EIC Fund | ↗ |
| SERIES AOther financing | Jun 2025 | $143M | $572M | HTGF · Omnes Capital · Investors' club · DeepTech & Climate Fonds | ↗ |
Growth signals
Latest recorded traffic for Proxima Fusion is 48K monthly website visits, up 23.1% over the last three months. Proxima Fusion's team grew 26.2% over the past year.
Open positions
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Investments and acquisitions
Recent portfolio relationships for companies that also act as investors or acquirers.
Investors
From Dealroom's funding and investor records, grouped by the round each investor first entered.
Seed6 investors entered at this stage
Series A26 investors entered at this stage
UVC Partners
Plural
Bayern Kapital
Hummingbird
Alberto Dalmasso
Wilbe Capital
OOBESE- FLFlixfounders
- GTG8Way Trustee
Bosch
Visionaries
Simon Fiduciaria
Leitmotif
Achleitner Fahrzeugbau- EAEuler AL
EIC Fund
Balderton Capital
Cherry Ventures
Omnes Capital
Investors' club
Elaia
Lightspeed Venture Partners
Visionaries Tomorrow
Wilbe Ventures
Brevan Howard Asset Management
CDP Venture Capital
Other known investors4 additional known investors
Intel Ignite
Max Planck Innovation
Max Planck Institute for Plasma Physics
Max Planck Society
Source: Dealroom Talent Intelligence.
Global footprint
team presence
Market sentiment
An AI-synthesised read of the highest-engagement posts about Proxima Fusion on X, ranked by likes and reposts, corporate channels excluded.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
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