Antares raises $470M to build nuclear reactors for the U.S. military
Nuclear startup Antares has raised $470 million in a Series C funding round to develop small modular reactors for U.S. military bases. The company aims to deploy its technology by 2028, capitalizing on the surging energy demand from AI data centers.
Why it matters
This investment highlights the growing intersection of national security, defense infrastructure, and the urgent need for carbon-free power to support the AI and data center boom.
Nuclear power startup Antares said Monday that it has raised $470 million to build small reactors for U.S. military bases.
The Series C round, which was led by Paradigm and Caffeinated Capital with participation from Industrious Ventures, Point72 Ventures, and Shine Capital, underscores investors’ growing interest in advanced nuclear startups — a trend fueled by an AI data center building boom and demand for new sources of power. The Series C round included $370 million in equity and $100 million in debt.
Antares has been developing a small modular reactor (SMR) capable of producing between 100 kilowatts and 1 megawatt of electricity, enough to power up to 750 homes.
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