Thea Energy, based in Kearny, New Jersey, designs stellarators made from arrays of simpler planar magnets and plans Eos, a large integrated stellarator. It raised an oversubscribed $100 million Series B in 2026, bringing private investment to $130 million.
At a glance
| Price from | Custom |
| Best for | Partners following simplified stellarator designs |
From Thea Energy's own website.
What stands out
- Simpler magnets than classic stellarators
- Recently funded
Worth knowing
- Eos not yet built
- Smaller team and budget than the top rivals
How it ranks
Thea Energy is ranked 10th of 10 in Best Fusion Energy Companies (Lister Score 85.4).
#10 in Best Fusion Energy Companies · Lister Score 85.4
Thea Energy says its Series B will fund magnet manufacturing and the siting and construction of Eos..
| Rank | Best Fusion Energy Companies | Score |
|---|---|---|
| 1 | Commonwealth Fusion Systems | 97.0 |
| 2 | Helion Energy | 95.8 |
| 3 | TAE Technologies | 94.5 |
| 4 | Pacific Fusion | 93.2 |
| 5 | Proxima Fusion | 92.0 |
| 6 | Type One Energy | 90.7 |
| 7 | Tokamak Energy | 89.4 |
| 8 | General Fusion | 88.1 |
| 9 | Zap Energy | 86.8 |
| 10 | Thea Energy | 85.4 |
Frequently asked questions
How does Thea Energy rank on Lister?
Thea Energy is ranked 10th of 10 in Best Fusion Energy Companies (Lister Score 85.4).
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