Factory-produced, deployable fission microreactors to provide strategic energy for mission-critical systems across Earth, space, and underseas.
Location: United States, California, Redondo Beach
Total raised: $104M
Investors 8
| Date | Name | Website |
| 10.01.2024 | Pathbreake... | pathbreake... |
| 27.12.2024 | Shine Capi... | shine.vc |
| - | Uncommon C... | uncommonca... |
| 12.12.2025 | 53 Station... | 53stations... |
| - | Quint Capi... | quint.capi... |
| - | Alt Capita... | altcap.com |
| 06.11.2023 | Caffeinate... | caffeinate... |
| 18.11.2024 | BoxGroup | boxgroup.c... |
Funding Rounds 2
| Date | Series | Amount | Investors |
| 02.12.2025 | Series B | $96M | - |
| 16.05.2024 | Seed | $8M | Caffeinate... |
Mentions in press and media 10
| Date | Title | Description |
| 10.07.2026 | Antares Nuclear Raises $30 Million Series A led by ALT Cap & Caffeinated Capital | - |
| 10.07.2026 | U.S. nuclear startup Antares Industries gets Department of Energy approval for its Mark-0 reactor demonstrator | - |
| 10.07.2026 | Microreactor startup Antares raises $96 Million for land, sea, and space-based nuclear power | - |
| 28.01.2026 | Balerion Space Ventures Backs Northwood Space In $100 Million Series B | Balerion Space Ventures announced it has made a strategic investment in Northwood Space’s $100 million Series B financing round, framing the deal as a bet on the ground-layer systems that underpin every mission in orbit and an area the firm... |
| 02.12.2025 | Antares Raises $96M in Series B Funding | Antares, a Torrence, CA-based nuclear energy startup, raised $96M in Series B funding. The round was led by Shine Capital, with participation from Alt Capital, Caffeinated, FiftyThree Stations, Industrious, and other investors, bringing its... |
| 22.03.2025 | ExLabs and Antares Partner to Develop Nuclear-Powered Spacecraft for Deep-Space Missions | ExLabs and Antares have announced a strategic partnership to develop the first commercial nuclear-powered spacecraft for deep-space applications. LONG BEACH, Calif. and TORRENCE, Calif., March 21, 2025 /PRNewswire-PRWeb/ -- ExLabs, a leader... |
| 16.05.2024 | Antares raises $8 Million Seed round led by Caffeinated Capital for deployable nuclear energy | - |
| - | Antares | “Continuous energy with no sustaining supply chain for 3 years. Automated controls, power management, and distribution with no specialized workforce.” |
| - | Antares | “Factory-produced, deployable fission microreactors to provide strategic energy for mission-critical systems across Earth, space, and underseas.” |
| - | Reactors to Rockets: Nuclear Power’s Return to Space | With NASA’s Artemis II—the first crewed lunar flyby in more than 50 years—successfully completed, attention is now turning to what’s next: establishing an enduring presence on the moon. Through a series of low-Earth orbit and lunar surface ... |