Antares Industries

Factory-produced, deployable fission microreactors for strategic energy

Los Angeles, United States · Founded 2023 · $109.0M raised

Employees
51–200
Founded
2023
Business Model
B2B
Total Funding
$109.0M
Last Round
$71.0M Series BDec 2025
Rounds
3

About

Antares Industries (now Antares Nuclear) designs and manufactures factory-produced, deployable fission microreactors providing 100kWe–1MWe of power for 6+ years to mission-critical defense, space, and undersea applications. Its R1 microreactor uses TRISO fuel and a nitrogen Brayton cycle for high-reliability, low-maintenance power delivery in remote and austere environments.

Summary

Antares Industries is a Defense Tech company based in Los Angeles, United States, founded in 2023. It has raised $109.0M in total across 3 rounds, most recently a $71.0M Series B round in Dec 2025.

Tech & App Stack

5 technologies & apps tracked

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Funding History

Series BSeries BDec 2025
$71.0M

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Full funding history, per-round amounts, and investor participation.

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