Kyoto Fusioneering
Developing fusion technology to drive a new energy industry
Tokyo, Japan · Founded 2019 · $281.7M raised
- Headquarters
- Tokyo
- Employees
- 201–500
- Founded
- 2019
- Business Model
- B2B
- Website
- kyotofusioneering.com
- Total Funding
- $281.7M
- Last Round
- $105.0M Series DAug 2026
- Rounds
- 6
Totals include recorded grants and other qualifying funding, not just equity. What counts toward funding.
About
Kyoto Fusioneering (KF) is the world's premier fusion technology and integrated systems provider, founded in 2019 and rooted in decades of fusion R&D from Kyoto University. The company develops critical-path engineering solutions — including tritium breeding blankets, plasma-facing components, and heat extraction systems — for commercial fusion power plants worldwide. As the largest fusion company to emerge from Japan, KF partners with leading fusion developers and national laboratories to accelerate the timeline to commercial fusion energy.
Summary
Kyoto Fusioneering is a Climate Tech company based in Tokyo, Japan, founded in 2019. It has raised $281.7M in total across 6 rounds, most recently a $105.0M Series D round in Aug 2026. Investors include JIC Venture Growth Investments, Kyocera Venture Innovation Fund No. 1 (Global Brain) and JERA.
Tech & App Stack
6 technologies & apps tracked
Every product and vendor across these categories, with where each signal came from.
Create a free account with 25 free credits every month, no card needed, to unlock the full tech & app stack, funding history, and valuations.
Funding History
Aug 2026
Sign up to see all 6 events
Funding: Series B through Series D. Amounts, valuations, and investors where available.
Investors
Similar Companies
Flying car and low-altitude mobility company, subsidiary of Xpeng Motors
Antares Nuclear builds factory-produced fission microreactors that supply 100kWe to 1MWe of strat...
Starcloud builds scalable data center infrastructure in space, using solar energy and radiative c...
Sempra Infrastructure develops, builds, operates, and invests in infrastructure serving customers...
AI infrastructure company building renewable-powered data centers and cloud compute optimized for...
Green steel company using hydrogen and renewable electricity to decarbonize steel production. For...
Appears in
Your company? Embed this profile
Add the live badge to your site — it stays current as your funding data updates.
<a href="https://indexed.vc/companies/kyoto-fusioneering"><img src="https://indexed.vc/api/badge/company/kyoto-fusioneering" alt="Kyoto Fusioneering on Indexed.vc" width="260" height="76" /></a>