ANTARES NUCLEAR, INC.
Abundant energy from Earth to the asteroid belt.
Torrance, United States · Founded 2024 · $101.0M raised
- Headquarters
- Torrance, California
- Employees
- 11–50
- Founded
- 2024
- Business Model
- B2G
- Total Funding
- $101.0M
- Last Round
- $71.0M Series BDec 2025
- Rounds
- 2
About
Antares is a nuclear technology company developing rapidly deployable microreactors for U.S. Department of Defense and space applications. Its R1 microreactor produces 100kW–1MW of electricity using TRISO coated particle fuel in a prismatic graphite core. The company has received SBIR awards from the Air Force and NASA for terrestrial and space-based nuclear power systems.
Summary
ANTARES NUCLEAR, INC. is a Climate Tech company based in Torrance, United States, founded in 2024. It has raised $101.0M in total across 2 rounds, most recently a $71.0M Series B round in Dec 2025. Investors include Alt Capital, Caffeinated Capital and Shine Capital.
Funding History
Sign up to view the funding chart
Create a free account with 25 free credits every month, no card needed, to unlock funding history, valuations, and tech stacks.
Dec 2025
Sign up to see all 3 rounds
Series A through Series B — per-round amounts, valuations, and who invested in each round.
Investors
Similar Companies
SpaceX designs, builds and launches advanced, reusable rockets and spacecraft with the goal of ma...
Blue Origin develops reusable rockets and space-resource systems to reduce launch costs and enabl...
Develops all-electric eVTOL aircraft and intends to operate urban air taxi services, serving comm...
Sierra Space is a commercial space company focused on creating a more accessible space economy.
Zipline operates an autonomous delivery service that transports medical supplies, food, and retai...
Stoke Space develops Nova, a fully reusable rocket designed to provide affordable, responsive tra...
Your company? Embed this profile
Add the live badge to your site — it stays current as your funding data updates.
<a href="https://indexed.vc/companies/antares-nuclear-inc"><img src="https://indexed.vc/api/badge/company/antares-nuclear-inc" alt="ANTARES NUCLEAR, INC. on Indexed.vc" width="260" height="76" /></a>