Type One Energy Group
PrivateLast Round
Convertible Debt
Jan 15, 2026
Total Funding Raised
$398.4M
Momentum
Top 25%
of companies Caplight tracks
Company Overview
Type One Energy Group is a clean energy company that develops fusion energy systems aimed at delivering sustainable and affordable fusion power globally through advanced manufacturing techniques and innovative reactor designs.
Sector
Energy & Sustainability
Verticals
Renewable Energy, Advanced Materials
Business Model
B2B
Customer Profile
Hardware Sales, Services & Consulting
AI Layer
Non-AI
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Type One Energy Group Comparables
Compare Type One Energy Group with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Proxima Fusion | 86% | |
| Renaissance Fusion | 84% | |
| Zap Energy | 84% |
Type One Energy Group Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Convertible Debt | Jan 15, 2026 | ||||
| Series A | Mar 26, 2025 | ||||
| Strategic | Nov 22, 2024 | ||||
| Seed | Jul 30, 2024 | ||||
| Seed | Mar 28, 2023 |
Key People
Founding team and executive leadership
Type One Energy Group Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Zeon Ventures | Strategic |
| VAHOCA | Seed |
| Breakthrough Energy Ventures | Convertible Debt, Seed |
| The Grantham Foundation for the Protection of the Environment | Seed |
| Breakthrough Energy Foundation | Seed |
| Lowercarbon Capital | Seed |
| Doral Energy-Tech Ventures | Convertible Debt, Seed |
Market signals
Structured signals derived from secondary market and firmographic data.
- Jul 16, 2026
Grew 20% QoQ, from 186 to 224 employees.
- May 25, 2026
Grew 16% QoQ, from 177 to 205 employees.
Recent news
Latest coverage and updates
- is_developingSep 17, 2026
Type One Energy Group is developing optimized stellarator fusion energy system on Sep 17th '26.
- expands_offices_toSep 6, 2026
Type One Energy Group expands offices to Oak Ridge, Tennessee, United States, Northern America, Americas.
- expands_facilitiesSep 4, 2026
Type One Energy Group expanded facilities to Anderson, Indiana, United States, Northern America, Americas on Jul 1st '26.
- expands_facilitiesSep 3, 2026
Type One Energy Group expanded facilities to Oak Ridge, Tennessee, United States, Northern America, Americas on Jul 1st '26.
- closes_offices_inSep 2, 2026
Type One Energy Group closed offices in Madison, Wisconsin, United States, Northern America, Americas on Jul 1st '24.
Type One Energy Group 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 Type One Energy Group's valuation, stock price, and market status.
Is Type One Energy Group a public or private company?
Type One Energy Group is a private company.
What is the current stock price of Type One Energy Group?
Type One Energy Group is a private company with no public stock price. No recent secondary market data is available.
How much is Type One Energy Group worth (valuation)?
Valuation information for Type One Energy Group is not publicly available.
Can I buy Type One Energy Group stock?
Type One Energy Group 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 Type One Energy Group's last funding round?
Type One Energy Group's most recent funding round was Early Funding on January 14, 2026.
Who are the main investors in Type One Energy Group?
Key investors in Type One Energy Group include Breakthrough Energy Ventures, Breakthrough Energy Foundation, Doral Energy-Tech Ventures, Centaurus Capital, TDK Ventures.
Will Type One Energy Group IPO soon?
No public IPO plans have been announced for Type One Energy Group.
How can I track Type One Energy Group secondary market activity?
Caplight tracks bids, offers, and trades for private companies. Visit https://www.caplight.com to monitor Type One Energy Group's secondary market activity and sign up for updates.