Helical Fusion key facts
as of Oct 2026- Developer of helical fusion reactors designed to create sustainable energy for the realization of zero-carbon.
- Helical Fusion is valued at approximately $71.4M as of Oct 2026 (last reported valuation).
- It has raised $27.9M; the latest was Early Stage VC ($20.4M) in Dec 2025.
- Notable investors include Plug and Play Tech Center, Mitsubishi UFJ Capital, SMBC Venture Capital, SBI Investment, Mizuho Capital — 45 tracked in total.
- Status: Privately Held (backing).
Helical Fusion's last reported valuation, Apr 2023. Nothing priced has surfaced since.
- ·The complete investor list: 45 names
- ·Watch Helical Fusion: the Monday email on marks, rounds and moves
Helical Fusion funding rounds
No funding rounds for Helical Fusion are on record yet — either the company hasn't raised institutional capital, or the raise hasn't surfaced in our sources.
Who backs Helical Fusion
45+Helical Fusion valuation
Helical Fusion's last reported valuation was $71.4 million in Apr 2023. No priced round, secondary trade or fund mark has surfaced since.
Helical Fusion investors
45 investors are on record for Helical Fusion, including Plug and Play Tech Center, Mitsubishi UFJ Capital, SMBC Venture Capital and SBI Investment. By type, the record holds 8 venture capital firms.
About Helical Fusion
Developer of helical fusion reactors designed to create sustainable energy for the realization of zero-carbon. The company employs a magnetic field confinement method for stabilizing high-temperature plasma using a superconducting helical coil with a double-helix structure that is similar to deoxyribonucleic acid, enabling society to reduce the consumption of valuable underground resources such as oil and natural gas while reducing consumption.
- Sector
- Energy
- HQ
- Tokyo, Japan
- Founded
- 2021
- Employees
- 35
- Website
- helicalfusion.com/
- Ownership
- Privately Held (backing)
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