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Kyoto Fusioneering
Plant engineering and components for commercial fusion energy
About Kyoto Fusioneering
Kyoto Fusioneering is a Japanese startup that is pioneering the development of fusion technology. The company's primary goal is to create a new energy industry that can help solve global environmental problems. Kyoto Fusioneering operates in the energy market, specifically focusing on the fusion energy sector.
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The company's business model revolves around the research, development, and commercialization of fusion technology. Kyoto Fusioneering collaborates with various partners, including the Canadian Nuclear Laboratories (CNL), to advance its technology. The company's revenue streams are likely to come from the sale of its fusion technology, licensing its technology to other companies, and potential government grants for its contribution to environmental solutions.
Kyoto Fusioneering serves a broad range of clients. These include other businesses in the energy sector that may be interested in implementing or investing in fusion technology, government bodies looking for innovative solutions to environmental issues, and research institutions interested in the company's groundbreaking work.
In simple terms, Kyoto Fusioneering is a company that is developing a new type of energy technology (fusion technology) that could help solve some of the world's biggest environmental problems. They make money by selling this technology and working with other companies and organizations interested in this field.
At a glance
- Status
- Operational
- Founded
- 2019
- Headquarters
- Tokyo, Japan
- Employees
- 73
- Open positions
- None listed
- Dealroom signal
- 82.5/100
- Industry
- Energy
- Sub-industry
- Clean Energy
- Sector
- Energy, Spinout, Sustainable Development Goals, Nuclear Fusion, Climate Tech, NIF defense security and resilience, NIF Energy Security and Climate Change, DT and LS, science-based
- Technology
- Hardware, Deep Tech
- Business model
- Manufacturing
- Client focus
- b2b
Latest news
Press, funding announcements and product moves mentioning Kyoto Fusioneering.
Funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| DEBTDebt | Sep 2025 | $3.8M | — | Sumitomo Mitsui Banking · Mitsubishi UFJ Financial Group · Bank of Kyoto · Japan Bank for International Cooperation | ↗ |
| SERIES COther financing | Sep 2025 | $3.9M | $395M | Global Brain Corporation · 31Ventures · JERA · Sumitomo Mitsui Trust Bank | ↗ |
Growth signals
Latest recorded traffic for Kyoto Fusioneering is 18K monthly website visits, up 63.6% over the last three months. Kyoto Fusioneering's team grew 2.8% over the past year.
Open positions
Similar companies
Company identity and context are open; selected comparison metrics preview what is available on the platform.
Investors
From Dealroom's funding and investor records, grouped by the round each investor first entered.
Seed10 investors entered at this stage
Kyoto University Innovation Capital
Coral Capital
Sumitomo Mitsui Banking- JFJGC MIRAI Innovation Fund
DBJ Capital
JAFCO
Mitsubishi UFJ Financial Group
Daiwa Corporate Investment
JIC Venture Growth Investments
Bank of Kyoto
Series B and later24 investors entered at this stage
MUFG Union Bank
SMBC Venture Capital
Mitsui Global Investment
K4 Ventures
Sumitomo Mitsui Trust
Inpex
Mitsubishi UFJ Capital
Global Brain Corporation
Mitsubishi
J-POWER
Jgc
Kansai Electric Power
MOL PLUS
Fujikura
31Ventures
Kyoto Capital Partners
Marubeni
In-Q-Tel
Nichicon
Japan Bank for International Cooperation
Japan Finance
JERA
Sumitomo Mitsui Trust Bank
Kyocera Venture
Other known investors2 additional known investors
J-Startup
Kyoto University
Source: Dealroom Talent Intelligence.
Global footprint
team presence
Market sentiment
An AI-synthesised read of the highest-engagement posts about Kyoto Fusioneering on X, ranked by likes and reposts, corporate channels excluded.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
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