Kyoto Fusioneering
PrivateLast Round
Series C
Extension
Sep 9, 2025
Est. Valuation
$542.5M
Total Funding Raised
$164.75M
Momentum
Top 50%
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 Comps
Public and private peers based on sector, stage, and business model.
| Company | Status | Est. Valuation | Rev Multiple |
|---|---|---|---|
| OpenAI | Private | $86.0B | ~40x |
| Cohere | Private | $5.0B | -- |
| Competitor 1 | Public | $XX.XB | XXx |
| Competitor 2 | Public | $XX.XB | XXx |
Kyoto Fusioneering Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series C Extension | Sep 9, 2025 | ||||
| Debt | Sep 9, 2025 | ||||
| Series C Extension | Jul 23, 2024 | ||||
| Series C Extension | Apr 11, 2024 | ||||
| Series C | May 17, 2023 | ||||
Debt | Mar 7, 2022 |
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 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.
- Jan 1, 2026
Secured National Institute for Fusion Science as a customer.
- Sep 9, 2025
$10.36M round led by JERA.
Kyoto Fusioneering Filings
SEC and related filings with document metadata.
| Typed | Date | Amount Offered | Amount Sold | Filling | Pages | Download |
|---|---|---|---|---|---|---|
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Frequently Asked Questions
Common questions about Kyoto Fusioneering's valuation, stock price, and market status.