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Antares raises $470M to build nuclear reactors for the US military
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Fusion42 · 27 July 2026 · Fusion42 review
Antares Nuclear raised $470M (Series C) to manufacture small modular reactors for US Air Force bases, with its demonstration reactor reaching criticality in June 2026. The company is one of three finalists competing for a Defence Department contract to deploy 100kW–1MW reactors at military installations.
This Wire brief sits within Fusion42's coverage of Defense Tech.
◆ ◆ The Wire takeaway
The US military is locking in nuclear power as standard infrastructure for forward bases—and Antares is one of three vendors competing for first-mover advantage. If you supply materials, controls, cooling systems, or grid-integration kit to small reactors, your customer just became the Pentagon.
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1 source · 27 Jul 2026
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