Thea Energy
PrivateLast Round
Series B
Extension
Aug 18, 2026
Est. Valuation
$302.7M
Total Funding Raised
$220M
Momentum
Top 1%
of companies Caplight tracks
Company Overview
Thea Energy operates in Energy & Sustainability and is based in Kearny, New Jersey. Its latest recorded funding round was a Series B Extension round in August 2026.
Thea Energy is a clean energy company that develops a fusion energy system designed to provide a limitless source of zero-emission power, utilizing stellarator physics and engineering with planar coils to facilitate continuous fusion reactions.
Sector
Energy & Sustainability
Verticals
Renewable Energy
Business Model
B2B
Customer Profile
Services & Consulting, Government Contracts, Data as a Service
AI Layer
Application
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Thea Energy Comparables
Compare Thea Energy with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Type One Energy Group | 87% | |
| Helical Fusion Co., Ltd. | 86% | |
| Zap Energy | 85% |
For institutional investors. Book with your work email.
Thea Energy Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series B Extension | Aug 18, 2026 | ||||
| Strategic | Jul 2, 2026 | ||||
| Series B | May 27, 2026 | ||||
| Series A | Feb 8, 2024 | ||||
| Grant | Jul 27, 2023 | ||||
Grant | Jun 1, 2023 |
For institutional investors. Book with your work email.
Key People
Founding team and executive leadership
For institutional investors. Book with your work email.
Thea Energy Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Linse Capital | Series B, Series B Extension |
| Overlay Capital | Series B, Series B Extension |
| Orion Industrial Ventures | Series B, Series A, Series B Extension |
| Climate Capital | Series B |
| US Innovative Technology Fund | Series B, Series B Extension |
| Mercator Partners | Series B, Series A, Series B Extension |
| HV Fund | Series B, Series A, Series B Extension |
For institutional investors. Book with your work email.
Market signals
Structured signals derived from secondary market and firmographic data.
- Aug 18, 2026
$100M round led by US Innovative Technology Fund.
- Jul 2, 2026
$8M round led by Fisher8 Capital and Manifold Trading.
For institutional investors. Book with your work email.
Recent news
Latest coverage and updates
- is_developingNov 9, 2026
Thea Energy Inc. collaborates with MIT to test and validate an encircling magnet coil for its Eos stellarator, assessing high-temperature superconducting hardware under full magnetic loads and simulated power-plant conditions.
- is_developingNov 5, 2026
Thea Energy Inc. is developing a digital twin model for its planned Helios fusion power plant in collaboration with Nvidia, Synopsys, Argonne National Laboratory, and PPPL, as announced in Jun '26.
- is_developingNov 4, 2026
Thea Energy Inc. is developing predictive models by analyzing an encircling coil’s efficiency under power-plant-relevant conditions, similar to models used in its digital-twin collaboration with NVIDIA and others.
- is_developingNov 3, 2026
Thea Energy Inc. is developing active control strategies to suppress magnetic islands in quasi-axisymmetric stellarators.
- hiresNov 3, 2026
Thea Energy Inc. appoints Pat Schweiger as chief engineer on Nov. 3rd '26 in New Jersey, making him the design authority for its systems as it advances its Eos stellarator and Helios power plant.
For institutional investors. Book with your work email.
Thea Energy 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.
Book a demoFor institutional investors. Book with your work email.
Frequently Asked Questions
Common questions about Thea Energy's valuation, stock price, and market status.
Is Thea Energy a public or private company?
Thea Energy is a private company.
What is the current stock price of Thea Energy?
Thea Energy is a private company, so its shares have no public market price. Caplight tracks Thea Energy's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is Thea Energy worth (valuation)?
Thea Energy's valuation is estimated at $302.7M based on funding round data.
Can I buy Thea Energy stock?
Thea Energy shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was Thea Energy's last funding round?
Thea Energy's most recent funding round was Series B Extension on August 18, 2026.
Who are the main investors in Thea Energy?
Key investors in Thea Energy include US Innovative Technology Fund, Prelude Ventures, Maven 11 Capital, Hack VC, Fisher8 Capital.
Will Thea Energy IPO soon?
No public IPO plans have been announced for Thea Energy.
How can I track Thea Energy secondary market activity?
Caplight tracks bids, offers, and trades in Thea Energy's shares on secondary markets.