Starlight Engine
POWERING the FUTURE
Japan · Founded 2025 · $37.4M raised
- Employees
- 1–10
- Founded
- 2025
- Business Model
- B2B
- Website
- sle.energy
- Total Funding
- $37.4M
- Last Round
- $37.4M SeedJul 2026
- Rounds
- 1
Totals include recorded grants and other qualifying funding, not just equity. What counts toward funding.
About
Starlight Engine Ltd. (SLE) is a Japan-based fusion energy company established in April 2025 as a group company of Kyoto Fusioneering, tasked with leading the FAST (Fusion by Advanced Superconducting Tokamak) project. Guided by its mission 'Bringing fusion energy to the world,' SLE aims to integrate all critical technologies required for fusion power generation—including high-temperature superconducting coils, fuel breeding blankets, and energy conversion systems—into a unified power plant demonstration. The company targets commercial fusion power plant deployment in the 2030s, building a Japan-led global supply chain in collaboration with industry, government, and academia.
Summary
Starlight Engine is a Climate Tech company based in Japan, founded in 2025. It has raised $37.4M in total across 1 round, most recently a $37.4M Seed round in Jul 2026. Investors include Global Brain and TOHO Ventures.
Tech & App Stack
2 technologies & apps tracked
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Funding History
Jul 2026
Investors
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