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.
Antares Nuclear Filings
SEC and related filings with document metadata.
| Typed | Date | Amount Offered | Amount Sold | Filling | Pages | Download |
|---|---|---|---|---|---|---|
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Frequently Asked Questions
Common questions about Antares Nuclear's valuation, stock price, and market status.