Helical Fusion Co., Ltd.
eDR100Effective DR: 100/100. Top 25%. Measured by StartupHub.ai. Median 68.Agent52Agent Readiness: 52/100. Top 25%. Measured by StartupHub.ai. Median 41.Helical Fusion is a Japanese fusion energy company developing a helical stellarator to achieve commercially viable fusion power by the 2030s.
About
Helical Fusion Co., Ltd. is a Japanese startup that spun out of the National Institute for Fusion Science (NIFS) in 2021. The company is developing a helical stellarator fusion reactor, leveraging decades of Japanese research in magnetic confinement fusion.
Videos
Key facts
At-a-glance profile data
- Website
- helicalfusion.com
- Headquarters
- Tokyo, Japan
- Founded
- 2021
- Total funding
- $21M (Series B)
- Business model
- B2B
Funding rounds
| Date | Round | Amount | Lead investors |
|---|---|---|---|
| 7 Oct 2026 | Series B | $21M | - |
Tech stack
Detected on helicalfusion.com, last scanned 18 Oct 2026. Run your own scan
- Observability
- Sentry
- CMS / Builders
- Wix
- CDN
- Cloudflare
- Email provider
- Google Workspace
- Integration capability
- GitHub, Linear
Frequently asked
What does Helical Fusion Co., Ltd. do?
Their Helix Program aims to achieve steady-state net power generation and maintainability, with a demonstration plant (Helix HARUKA) around 2030 and a commercial power plant (Helix KANATA) in the 2030s.
Is Helical Fusion Co., Ltd. trustworthy and reputable?
StartupHub's Data Trust & Reputation score for Helical Fusion Co., Ltd. is 66 out of 100, a generally safe rating, based on site security posture, privacy practices, malware and phishing checks, and public reputation signals.
How much funding has Helical Fusion Co., Ltd. raised?
Helical Fusion Co., Ltd. has raised a total of $21M in funding. The most recent round on record is Series B.