# Helical Fusion Co., Ltd.

**Source:** https://www.startuphub.ai/startups/helical-fusion
**Profile type:** Startup

> 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. 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.

## Key facts

- **Slug:** helical-fusion
- **Website:** https://helicalfusion.com
- **Location:** Tokyo, Japan
- **Founded:** 2021-10-22
- **Operating status:** Active
- **Total funding:** $21M
- **Sectors / tags:** Nuclear Fusion, Clean Energy, Energy Tech, Hardware, Stellarator
- **Social:**
  - LinkedIn: https://www.linkedin.com/company/97201189
  - Twitter: https://x.com/HelicalFusionJP
  - GitHub: https://github.com/wix
  - Facebook: https://www.facebook.com/helicalfusion

## StartupHub.ai scores

- **Ahrefs DR:** 45/100
- **Effective DR:** 100/100
- **Agent Readiness:** D (52/100)
- **Site Speed:** 55/100
- **Data Trust:** 66/100

## Funding rounds

| Date | Round | Amount | Lead investors |
| --- | --- | --- | --- |
| 7 Oct 2026 | [Series B](https://www.startuphub.ai/investment_rounds/helical-fusion-series-b-2026) | $21M | - |

## Tech stack

Detected on helicalfusion.com, last scanned 2026-10-18.

- **Observability:** Sentry
- **CMS / Builders:** Wix
- **CDN:** Cloudflare
- **Email provider:** Google Workspace

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