Startup
HFHelical Fusion
Developing a helical-type fusion power plant.
Funding rounds
Grey amounts aren't counted in totals. † includes debt or other non-equity.
| Date | Company | Stage | Amount | Investors | Sector |
|---|---|---|---|---|---|
| 8 Oct 2026 | HFHelical Fusion | Series B (2nd close) | ¥3.23B | Fuji ElectricFujikuraTokyo Gas +3 | Energy & FusionDeep tech |