Proxima Fusion, founded in 2023 in Munich, Germany, by former Max Planck Institute for Plasma Physics researchers, designs stellarator fusion power plants and plans Alpha, a net-energy demonstrator. In July 2026 it raised €411 million, which it describes as the largest private investment in European fusion.
At a glance
| Price from | Custom |
| Best for | Utilities and investors tracking fusion power |
From Proxima Fusion's own website.
What stands out
- Strategic backing from Google and RWE
- Builds on decades of stellarator research
Worth knowing
- Pre-revenue
- No power plant built yet
How it ranks
Proxima Fusion is ranked 6th of 10 in Best Deep Tech Startups in Europe (Lister Score 90.9).
#6 in Best Deep Tech Startups in Europe · Lister Score 90.9
Google and RWE joined Proxima Fusion's €411 million round in July 2026 as strategic investors..
| Rank | Best Deep Tech Startups in Europe | Score |
|---|---|---|
| 1 | Helsing | 97.1 |
| 2 | Wayve | 95.9 |
| 3 | ICEYE | 94.7 |
| 4 | Quantum Systems | 93.4 |
| 5 | NEURA Robotics | 92.2 |
| 6 | Proxima Fusion | 90.9 |
| 7 | Isar Aerospace | 89.6 |
| 8 | The Exploration Company | 88.4 |
| 9 | IQM Quantum Computers | 87.1 |
| 10 | Verkor | 85.8 |
Frequently asked questions
How does Proxima Fusion rank on Lister?
Proxima Fusion is ranked 6th of 10 in Best Deep Tech Startups in Europe (Lister Score 90.9).
Appears in
- #5 in Best Fusion Energy Companies · Deep Tech
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