| 8 Oct 2026 |  HFHelical Fusion | Series B (2nd close) | ¥3.23B | Fuji ElectricFujikuraTokyo Gas +3 | Energy & FusionDeep tech |
| 9 Sept 2026 | ATAlbatross Technology | Pre-Series B | ¥250M | Development Bank of JapanSumitomo Heavy IndustriesMitsubishi Gas Chemical +1 | Energy & FusionDeep tech |
| 8 Sept 2026 |  PPOLASTECH | Seed 2 | ¥140M | See source | Energy & FusionDeep tech |
| 2 Sept 2026 |  PLPower Laser | Undisclosed | ¥1.2B† | See source | Energy & FusionDeep tech |
| 1 Sept 2026 |  BBeff | Series A (1st close) | ¥450M | Genesia | Energy & FusionDeep tech |
| 15 Jul 2026 |  SEStarlight Engine | First external round | ¥6.06B | Global Brain | Energy & FusionDeep tech |
| 17 Jun 2026 | GEGreenphard Energy | Undisclosed | ¥120M | Suzuyo ShojiMitsubishi UFJ Capital | Energy & FusionDeep tech |
| 20 May 2026 | SSolaris | Undisclosed | ¥500M | Spiral Innovation PartnersAbies VenturesMizuho Capital +2 | Energy & FusionDeep tech |
| 11 May 2026 | EPExergy Power Systems | Undisclosed | — | See source | Energy & FusionDeep tech |
| 17 Apr 2026 | SESharing Energy | Series C | ¥862M† | Dai-ichi Life InsuranceMitsui Chemicals CVC FundTokyu Construction CVC Fund +4 | Energy & FusionDeep tech |
| 31 Mar 2026 | BFBeam for Fusion | Seed | ¥50M | See source | Energy & FusionDeep tech |
| 11 Mar 2026 | CPClean Planet | Undisclosed | — | See source | Energy & FusionDeep tech |
| 27 Feb 2026 | MMiRESSO | Series A | — | Spiral CapitalSBI InvestmentPacific Metals +9 | Energy & FusionDeep tech |
| 26 Feb 2026 | EEESREE Energy | Undisclosed | — | Digital GridReGACY Innovation Group | Energy & FusionDeep tech |
| 30 Jan 2026 | PPowerwave | Series A | ¥910M | Environmental Energy InvestmentArchetype VenturesNOBUNAGA Capital Village +3 | Energy & FusionDeep tech |
| 26 Jan 2026 | Eenechain | Series B | — | Sumitomo Mitsui Financial Group | Energy & FusionDeep tech |
| 16 Jan 2026 | OCOceanic Constellations | Series B | ¥2B | Globis Capital PartnersJAFCO GroupNippon Yusen +4 | Energy & FusionDeep tech |