1. Home
  2. Companies
  3. General Matter
General Matter logoGM

General Matter

About

General Matter, founded in 2024, is a U.S.-based nuclear-fuel startup focused on rebuilding domestic uranium enrichment capabilities. The company aims to restore American leadership in this critical sector, which is essential for energy independence and the expansion of nuclear power.

The company's core technical work centers on uranium enrichment and nuclear fuel production. Its products include low-enriched uranium (LEU) and high-assay low-enriched uranium (HALEU), fuels required for nuclear reactors. This effort supports broader national goals within the nuclear energy and manufacturing industries.

General Matter has secured a significant Department of Energy contract valued at $900 million. The company operates in the United States, with a presence in Paducah, Kentucky. It seeks talent across nuclear engineering, technology, and finance, applying a development approach described as a SpaceX-inspired playbook.

Similar companies

Valar Atomics logoVA

Valar Atomics

Valar Atomics is a nuclear energy startup building standardized high-temperature gas reactors on gigasites for industrial power, hydrogen, and clean fuels, and was the first such startup to achieve reactor criticality.

MH

Maglut Heavy Industries

Maglut Heavy Industries is a seed-stage company focused on rare earth element processing and purification to support the domestic critical materials supply chain.

Radiant Nuclear logoRN

Radiant Nuclear

Radiant Nuclear is developing mass-produced portable nuclear microreactors to replace diesel generators for remote and critical infrastructure.

Critical Energy Systems logoCE

Critical Energy Systems

Critical Energy Systems designs and builds factory-made, modular power plants that convert geothermal and waste heat into grid-scale electricity using custom turbomachinery.

DD

Deterrence Defense

Deterrence Defense is a defense technology startup building autonomous, robotics- and AI-driven manufacturing systems for the production of energetics, explosives, and munitions.

Kairos Power logoKP

Kairos Power

Kairos Power is a U.S. nuclear energy company developing fluoride salt-cooled high-temperature reactors using TRISO fuel, with demonstration reactors under construction in Oak Ridge, Tennessee.