Antares Nuclear
PrivateLast Round
Series C
Jul 27, 2026
Total Funding Raised
$673M
Momentum
Top 1%
of companies Caplight tracks
Company Overview
Antares Nuclear is a climate and clean energy company that designs and manufactures modular, transportable fission microreactors for strategic energy applications on Earth, in space, and underwater.
Sector
Energy & Sustainability
Verticals
Defense Tech, Energy Storage
Business Model
B2G
Customer Profile
Government Contracts, Hardware Sales
AI Layer
Non-AI
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Antares Nuclear Comparables
Compare Antares Nuclear with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Radiant Nuclear | 86% | |
| Hadron Energy | 78% | |
| NANO Nuclear Energy | 77% |
Antares Nuclear Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series C | Jul 27, 2026 | ||||
| Grant | Jun 5, 2026 | ||||
| Grant | Apr 1, 2026 | ||||
| Grant | Mar 3, 2026 | ||||
| Grant | Jan 26, 2026 | ||||
Series B | Dec 2, 2025 |
Key People
Founding team and executive leadership
Antares Nuclear Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Banter Capital | Series A, Seed |
| United States Department of Defense | Grant |
| U.S. Department of Defense (DIU) | Grant |
| Industrious Ventures | Series C, Series B |
| Paradigm | Series C |
| United States Air Force | Grant |
| Alt Capital | Series B, Series A |
Market signals
Structured signals derived from secondary market and firmographic data.
- Sep 1, 2026
Grew 29% QoQ, from 110 to 142 employees.
- Jul 28, 2026
Grew 27% QoQ, from 101 to 128 employees.
Recent news
Latest coverage and updates
- is_developingSep 17, 2026
Antares is developing compact microreactors on Jul 1st '23.
- receives_financingSep 12, 2026
Antares received financing of $161M in Strategic Breakthrough on Sep 11th '26.
- expands_facilitiesAug 31, 2026
Antares expands facilities to Texas, United States, Northern America, Americas.
- expands_facilitiesAug 26, 2026
Antares expanded facilities to North Carolina, United States, Northern America, Americas on Aug 26th '26.
- receives_financingJul 31, 2026
Antares received financing of $370M in Series C on Jul 1st '26.
Antares Nuclear 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 Antares Nuclear's valuation, stock price, and market status.
Is Antares a public or private company?
Antares is a private company.
What is the current stock price of Antares?
Antares is a private company with no public stock price. No recent secondary market data is available.
How much is Antares worth (valuation)?
Valuation information for Antares is not publicly available.
Can I buy Antares stock?
Antares 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 Antares's last funding round?
Antares's most recent funding round was Grant on April 1, 2026.
Who are the main investors in Antares?
Key investors in Antares include Alt Capital, Shine Capital, Caffeinated Capital.
Will Antares IPO soon?
No public IPO plans have been announced for Antares.
How can I track Antares secondary market activity?
Caplight tracks bids, offers, and trades for private companies. Visit https://www.caplight.com to monitor Antares's secondary market activity and sign up for updates.