Antares Nuclear
Latest round
- Series C
Last raised
- Jul 2026
Total raised
- $409M
Investors
- 14
About Antares Nuclear
Based in California, US, and founded in 2023, Antares Nuclear, Inc. specializes in advanced microreactor technology, with a key focus on the Antares R1 reactor. In July 2026, Antares Nuclear, Inc. Antares specializes in the development of advanced microreactor technology, particularly its flagship product, the Antares R1 reactor. This microreactor is engineered for rapid deployment in both terrestrial and space-based applications, emphasizing critical infrastructure resilience. Designed to be transportable on standard 463L pallets or within a single CONEX container, it allows for deployment in austere and remote environments. With built-in shielding features and sodium heat pipes, the R1 reactor ensures operational reliability and safety while minimizing the exclusion zone during deployment. Its core combines high-assay low-enriched uranium (HALEU) TRISO fuel with graphite moderation and reflective properties, catering to a diverse client base that includes government agencies and private enterprises focusing on energy solutions in the aerospace and defense sectors. The company actively markets its products in North America, Europe, and select regions in Asia, aiming to address the growing need for reliable energy sources in both remote locations and space missions. Antares generates revenue through direct sales and partnerships within the B2B sector, focusing on government contracts and commercial agreements with aerospace and defense industries. Transactions are structured around the sale of the R1 reactor, which may involve personalized contracts tailored to client needs, encompassing installation, maintenance, and operational training. Clients generally engage in one-time purchases or subscription-based models that include ongoing support services.
Who invested in Antares Nuclear
14 investors across 4 rounds
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Questions about Antares Nuclear
Who invested in Antares Nuclear?
Antares Nuclear has 14 investors on record across 4 venture rounds. Sign up free to see every VC on the cap table and the rounds they joined.
How much funding has Antares Nuclear raised?
Antares Nuclear has raised 4 venture rounds. Sign up free to see how much each round raised and the total.
When did Antares Nuclear last raise money?
Antares Nuclear's most recent round on record is a Series C, in Jul 2026.
What does Antares Nuclear do?
Based in California, US, and founded in 2023, Antares Nuclear, Inc.
Where is Antares Nuclear headquartered?
Antares Nuclear is headquartered in Torrance, US.
Which VCs invest in companies like Antares Nuclear?
Among active investors with capital left to deploy, Andreessen Horowitz, Founders Fund, Accel and Thrive Capital back power & utilities companies at Antares Nuclear's stage. Their profiles are linked below.
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