TerraPower
PrivateLast Round
Grant
Mar 17, 2026
Est. Valuation
$3.8B
Total Funding Raised
$1.61B
Momentum
Top 50%
of companies Caplight tracks
Company Overview
TerraPower is a nuclear energy technology company that develops advanced reactor designs to deliver safe, affordable, and carbon-free energy and medical isotopes.
Sector
Energy & Sustainability
Verticals
Energy Storage, Smart Grid, Biotechnology
Business Model
B2B
Customer Profile
Government Contracts, Hardware Sales, Services & Consulting
AI Layer
Application
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
TerraPower Comparables
Compare TerraPower with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Kairos Power | 83% | |
| X Energy | 81% | |
| Newcleo | 79% |
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TerraPower Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Grant | Mar 17, 2026 | ||||
| Corporate Funding | Jun 18, 2025 | ||||
| VC Round | Nov 3, 2022 | ||||
| Early Funding | Aug 15, 2022 | ||||
| Grant | Oct 13, 2020 | ||||
Corporate Funding | Dec 22, 2011 |
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Key People
Founding team and executive leadership
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TerraPower Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Khosla Ventures | Series B |
| Pennsylvania Department of Community and Economic Development | Grant |
| SK Inc. | VC Round, Early Funding |
| Commonwealth of Pennsylvania | Early Funding |
| NVentures | Corporate Funding |
| CRV | Series A, Series B |
| DOE | Grant |
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Market signals
Structured signals derived from secondary market and firmographic data.
- Apr 23, 2026
Began building America's first utility-scale advanced nuclear power plant.
- Mar 31, 2026
TerraPower and Evergy leaders are in discussions about building a potential nuclear power plant in Kansas. This potential partnership follows TerraPower's previously announced plans to build a reactor in the state.
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Recent news
Latest coverage and updates
- invests_into_assetsOct 28, 2026
Terrapower, Llc invests $450M in a radioisotope manufacturing facility in Pennsylvania's Bellwether District.
- attends_eventOct 27, 2026
Terrapower, Llc joins World Nuclear Association and the IAEA at the Financial Times' Energy Transition Summit in United Kingdom on Oct 27th '26 to discuss financing the next generation of nuclear projects.
- is_developingOct 9, 2026
Terrapower, Llc is developing a sodium-cooled fast reactor that uses liquid sodium as its coolant, with SK Innovation and Korea Hydro & Nuclear Power participating in the consortium.
- expands_facilitiesAug 24, 2026
Terrapower, Llc plans to expand its physical facilities in the United States by building up to eight advanced nuclear reactors in 2026.
- partners_withAug 14, 2026
Terrapower, Llc and SK Innovation announce a term sheet agreement to advance their intent to develop South Korea’s first commercial Natrium plant and plan to expand internationally on Aug 14th '26 in South Korea.
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TerraPower 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.
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Frequently Asked Questions
Common questions about TerraPower's valuation, stock price, and market status.
Is TerraPower a public or private company?
TerraPower is a private company.
What is the current stock price of TerraPower?
TerraPower is a private company, so its shares have no public market price. Caplight tracks TerraPower's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is TerraPower worth (valuation)?
TerraPower's valuation is estimated at $3.8B based on funding round data.
Can I buy TerraPower stock?
TerraPower shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was TerraPower's last funding round?
TerraPower's most recent funding round was Grant on March 17, 2026.
Who are the main investors in TerraPower?
Key investors in TerraPower include SK Inc..
Will TerraPower IPO soon?
No public IPO plans have been announced for TerraPower.
How can I track TerraPower secondary market activity?
Caplight tracks bids, offers, and trades in TerraPower's shares on secondary markets.