Advanced reactor company that achieved criticality with its Mark-0 microreactor on June 4, 2026 at Idaho National Laboratory. First privately developed non-light-water reactor to reach criticality in the US in over 40 years. Part of DOE Reactor Pilot Program.
Caffeinated Capital; Humba Ventures; Pathbreaker; Rogue VC; Shrug; Uncommon Capital; Alt Cap; Banter Capital; Box Group; Shine Capital; Paradigm; Point72 Ventures; Industrious Ventures