Jordan Bramble is the co-founder and CEO of Antares Nuclear (Antares Industries), a Torrance, California company building factory-produced, transportable fission microreactors of up to 1 MW for defense, remote industrial, and space applications. A systems engineer and physicist who did a stint in federal policy at the White House Office of Management and Budget, Bramble started Antares in 2023 on a contrarian bet: instead of chasing the commercial grid on price, sell nuclear's unique capability to customers who need power where the grid and diesel can't reach. Under his leadership Antares raised more than $130 million, built out a 145,000-square-foot factory, and in June 2026 became the first private company to bring an advanced reactor - its Mark-0 - to criticality under the U.S. Department of Energy's Reactor Pilot Program. His stated ambition is to make energy abundant 'from Earth to the Asteroid Belt.'
Antares is a nuclear fission energy company building factory-produced, transportable microreactors that deliver strategic power for mission-critical systems across land, sea, and space. Founded in 2023 and headquartered in Torrance, California, its R1 reactor uses TRISO fuel, sodium heat pipes, and a nitrogen Brayton cycle to produce 100kWe-1MWe for six-plus years. In June 2026 its Mark-0 reactor became the first privately developed advanced reactor to achieve criticality under the U.S. Department of Energy's Reactor Pilot Program.