# Jordan Bramble

> 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.'

- **Role:** Co-Founder & CEO at Antares Nuclear (Antares Industries)
- **Organizations:** Antares Nuclear, Inc., White House Office of Management and Budget (former)
- **Nationality:** American
- **Education:** Systems Engineering, George Mason University, Physics, Georgetown University, Statistics, Georgetown University
- **Known for:** Co-founded and leads Antares Nuclear, raising more than $130 million in private capital since 2023, Oversaw the buildout of a 145,000+ sq ft microreactor manufacturing facility in Torrance, California, Led Antares to become the first private company to achieve reactor criticality under the DOE Reactor Pilot Program (Mark-0, June 2026)

## Career timeline

- **pre-2023** — Worked in federal policy at the White House Office of Management and Budget; background in multidisciplinary engineering and entrepreneurship
- **2023** — Co-founded Antares Nuclear in Torrance/Redondo Beach, California to build transportable fission microreactors
- **2025-12** — Closed a $96M Series B ($71M equity + $25M debt) led by Shine Capital, bringing total funding above $130M
- **2026-06** — Antares Mark-0 achieved initial criticality at Idaho National Laboratory - first private advanced reactor critical under the DOE Reactor Pilot Program
- **2027** — Targeting a full-scale, electricity-producing demonstration reactor

## Achievements

- Co-founded and leads Antares Nuclear, raising more than $130 million in private capital since 2023
- Oversaw the buildout of a 145,000+ sq ft microreactor manufacturing facility in Torrance, California
- Led Antares to become the first private company to achieve reactor criticality under the DOE Reactor Pilot Program (Mark-0, June 2026)
- Hit the company's public goal of a low-power test reactor before July 4, 2026
- Assembled a team drawing from SpaceX, MIT, Rigetti Computing, and the U.S. Air Force
- Selected as a panelist at the Milken Institute Global Conference 2026 on the future of nuclear power

## Latest updates

- **2026-06** — Antares Mark-0 microreactor reached initial criticality at Idaho National Laboratory, the first private advanced reactor to do so under the DOE Reactor Pilot Program.
- **2026-05** — Bramble appeared as a panelist at the Milken Institute Global Conference 2026 on fission, fusion, and the future of nuclear power.
- **2025-12** — Closed a $96M Series B led by Shine Capital to scale manufacturing and uranium procurement.

## Links

- Website: https://antaresindustries.com
- LinkedIn: https://www.linkedin.com/in/jordan-bramble-19147274/
- Twitter/X: https://twitter.com/AntaresNuclear
- YouTube: https://www.youtube.com/watch?v=uIEsJiYxaEo

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Profile page: https://yespress.io/jordan-bramble
Published by YesPress — https://yespress.io
Last updated: 2026-07-01