Zeno Power
PrivateLast Round
Series B
May 14, 2025
Total Funding Raised
$101.67M
Company Overview
Zeno Power operates in Energy & Sustainability and is based in Washington D.C.. Its latest recorded funding round was a Series B round in May 2025.
Zeno Power is a nuclear energy and aerospace company that develops radioisotope power systems to provide long-duration, reliable energy for applications from the deep sea to deep space.
Sector
Energy & Sustainability
Verticals
Space Technology, Energy Storage, Defense Tech, Advanced Materials
Business Model
B2G
Customer Profile
Government Contracts, Hardware Sales
AI Layer
Non-AI
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Zeno Power Comparables
Compare Zeno Power with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Direct Kinetic Solutions | 84% | |
| Space Nuclear Power Corporation | 83% | |
| Perpetual Atomics | 79% |
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Zeno Power Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series B | May 14, 2025 | ||||
| Strategic | May 18, 2023 | ||||
| Series A | Apr 26, 2022 | ||||
| Seed | Jan 1, 2021 | ||||
| Accelerator | Jul 19, 2019 | ||||
Pre Seed | Apr 1, 2018 |
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Key People
Founding team and executive leadership
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Zeno Power Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| JAWS Estates Capital | Series B |
| Balerion Space Ventures | Series B |
| JAWS Ventures | Series B |
| Pallas Advisors | Series A |
| Techstars | Accelerator |
| Hanaco VC | Series B |
| 1517 Fund | Pre Seed, Accelerator, Series A |
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Market signals
Structured signals derived from secondary market and firmographic data.
- Mar 24, 2026
Zeno Power is developing compact radioisotope power systems designed to provide long-duration energy for spacecraft and remote operations.
- Mar 3, 2026
Radioisotope power systems targeted for market by 2027.
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Recent news
Latest coverage and updates
- invests_into_assetsOct 15, 2026
Zeno Power leases the shielded hot cell complex at the Vallecitos Nuclear Center in California to build nuclear batteries for defense and space customers.
- signs_new_clientAug 19, 2026
Zeno Power signs Firefly Aerospace, Inc. as a client under an agreement to integrate a radioisotope heating unit aboard an upcoming Blue Ghost lunar lander mission, announced on Aug 19th '26.
- is_developingAug 13, 2026
Zeno Power is developing nuclear batteries based on radioisotopes for challenging and remote environments such as the seabed and the Moon’s surface, with the first model expected to reach the market in 2027.
- is_developingAug 11, 2026
Zeno Power develops nuclear batteries that provide continuous, long-duration energy in extreme environments such as lunar nights, with systems also targeting maritime and defence infrastructure, in the United States on Aug 4th '26.
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Zeno Power 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 Zeno Power's valuation, stock price, and market status.
Is Zeno Power a public or private company?
Zeno Power is a private company.
What is the current stock price of Zeno Power?
Zeno Power is a private company, so its shares have no public market price. Caplight tracks Zeno Power's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is Zeno Power worth (valuation)?
Valuation information for Zeno Power is not publicly available.
Can I buy Zeno Power stock?
Zeno Power shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was Zeno Power's last funding round?
Zeno Power's most recent funding round was Series B on May 14, 2025.
Who are the main investors in Zeno Power?
Key investors in Zeno Power include Hanaco VC, Tribe Capital, U.S. Department of Defense, U.S. Department of War.
Will Zeno Power IPO soon?
No public IPO plans have been announced for Zeno Power.
How can I track Zeno Power secondary market activity?
Caplight tracks bids, offers, and trades in Zeno Power's shares on secondary markets.