How much funding has Starlight Engine raised?

Starlight Engine has raised $37.4M in total funding, most recently a Seed round.

Who are Starlight Engine's investors?

Starlight Engine's investors include Global Brain, TOHO Ventures.

When was Starlight Engine founded?

Starlight Engine was founded in 2025.

Where is Starlight Engine headquartered?

Starlight Engine is headquartered in Japan.

What industry is Starlight Engine in?

Starlight Engine operates in Climate Tech.

How many employees does Starlight Engine have?

Starlight Engine has 1-10 employees.

Starlight Engine

POWERING the FUTURE

Japan · Founded 2025 · $37.4M raised

Climate Tech

Employees: 1–10
Founded: 2025
Business Model: B2B
Website: sle.energy

Total Funding: $37.4M
Last Round: $37.4M SeedJul 2026
Rounds: 1

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.

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