Key facts
- Helical Fusion’s last known valuation is $71.4M (Apr 2023).
- 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).
- ·The complete investor list — 45 names
- ·Watchlist + deal alerts for Helical Fusion
- ·The full record, as it builds
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.
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)
Helical Fusion doesn't have a composite mark yet — a PA Mark is published once enough pricing inputs exist (trade prints, fund marks, round prices). The rest of the record below builds toward it.
Recorded secondary trades
No secondary trades in Helical Fusion shares have been recorded yet. When a print lands — third-party, direct report, or platform — it appears here with structure, source, and price.
Institutional fund marks
No SEC-registered fund has reported a fair-value mark on Helical Fusion in its N-PORT filings yet. We sweep new filings monthly.