Kyoto Fusioneering
PrivateLast Round
Series D
Aug 24, 2026
Est. Valuation
$542.5M
Total Funding Raised
$164.75M
Momentum
Top 5%
of companies Caplight tracks
Company Overview
Kyoto Fusioneering is an alternative energy equipment company that develops advanced technologies, including gyrotron systems, tritium fuel cycle solutions, and breeding blankets, for commercial fusion power plants.
Sector
Energy & Sustainability
Verticals
Renewable Energy, Advanced Materials
Business Model
B2B
Customer Profile
Hardware Sales, Services & Consulting, Government Contracts
AI Layer
Non-AI
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Kyoto Fusioneering Comparables
Compare Kyoto Fusioneering with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Canon Inc. | 73% | |
| Cocchi Technologies | 70% | |
| Thales Group | 69% |
Kyoto Fusioneering Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series D | Aug 24, 2026 | ||||
| Debt | Sep 9, 2025 | ||||
| Series C Extension | Sep 9, 2025 | ||||
| Series C Extension | Jul 23, 2024 | ||||
| Series C Extension | Apr 11, 2024 | ||||
Series C | May 17, 2023 |
Kyoto Fusioneering Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| JAFCO Group Co., Ltd. | Series C Extension, Series B, Series C |
| Development Bank of Japan | Series D, Series B, Series C |
| Coral Capital | Series C Extension, Seed, Series B, Series C |
| Fujikura Ltd. | Series C Extension |
| Mitsubishi UFJ Financial Group | Debt |
| K4 Ventures | Series C Extension, Series C |
| 京都キャピタルパートナーズ | Series C Extension |
Market signals
Structured signals derived from secondary market and firmographic data.
- Aug 24, 2026
$105M round with participation from DBJ Capital and MUFG Bank.
- Jan 1, 2026
Secured National Institute for Fusion Science as a customer.
Recent news
Latest coverage and updates
- invests_into_assetsSep 1, 2026
Kyoto Fusioneering Ltd. invested into assets: demonstration facilities on Sep 1st '26.
- expands_facilitiesAug 12, 2026
Kyoto Fusioneering Ltd. expanded facilities to Tennessee, United States, Northern America, Americas on Aug 12th '26.
- expands_facilitiesAug 11, 2026
Kyoto Fusioneering Ltd. expanded facilities to Oak Ridge, Tennessee, United States, Northern America, Americas on Aug 11th '26.
- increases_headcount_byAug 11, 2026
Kyoto Fusioneering Ltd. increased headcount by 51 on Aug 11th '26.
- invests_into_assetsJul 21, 2026
Kyoto Fusioneering Ltd. invested into assets: fusion power demonstration plant in Oak Ridge, Tennessee, United States, Northern America, Americas on Jul 15th '26.
Kyoto Fusioneering Filings
Explore SEC and related filing metadata, where available.
| Type | Date | Amount Offered | Amount Sold | Filing | Pages | Download |
|---|
Filing documents are not displayed on this public page. Request access to learn about available coverage.
Request accessFrequently Asked Questions
Common questions about Kyoto Fusioneering's valuation, stock price, and market status.
Is Kyoto Fusioneering a public or private company?
Kyoto Fusioneering is a private company.
What is the current stock price of Kyoto Fusioneering?
Kyoto Fusioneering is a private company with no public stock price. No recent secondary market data is available.
How much is Kyoto Fusioneering worth (valuation)?
Valuation information for Kyoto Fusioneering is not publicly available.
Can I buy Kyoto Fusioneering stock?
Kyoto Fusioneering shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors. Visit https://www.caplight.com to learn more.
When was Kyoto Fusioneering's last funding round?
Kyoto Fusioneering's most recent funding round was Debt on September 9, 2025.
Who are the main investors in Kyoto Fusioneering?
Key investors in Kyoto Fusioneering include Japan Investment Corporation, Global Brain Corporation, JIC Venture Growth Investments, JIC Investment, In-Q-Tel.
Will Kyoto Fusioneering IPO soon?
No public IPO plans have been announced for Kyoto Fusioneering.
How can I track Kyoto Fusioneering secondary market activity?
Caplight tracks bids, offers, and trades for private companies. Visit https://www.caplight.com to monitor Kyoto Fusioneering's secondary market activity and sign up for updates.