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TechRadar
TechRadar
Rahim Amir

This startup just raised nearly $500 million to build nuclear reactors for the US military

A file photo of the Antares Mark-0 being built.
  • Antares closes $470 million Series C, $370 million in equity and $100 million in debt, co-led by Paradigm and Caffeinated Capital
  • The move follows the Mark-0 reaching criticality at Idaho National Laboratory and helps fund an electricity-producing Mark-1 in 2027 and military deployments in 2028
  • Antares' military-first strategy targets a price-insensitive customer bound by an executive order requiring a reactor on a US base September 30 2028

Nuclear fission startup Antares has announced it has raised a total of $470 million in funding as it looks to supply a single client with a looming deadline: the US Military.

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