Nuclear Energy companies

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

Kairos Power is a U.S. nuclear energy company developing fluoride salt-cooled high-temperature reactors using TRISO fuel, with demonstration reactors under cons…

Valar Atomics is a nuclear energy startup building standardized high-temperature gas reactors on gigasites for industrial power, hydrogen, and clean fuels, and…

Oklo is a public nuclear energy company developing advanced fast fission power plants and nuclear waste recycling technology.

Zap Energy is developing compact fission and fusion power systems using sheared-flow-stabilized Z-pinch technology to deliver carbon-free energy.

General Matter is a U.S. nuclear-fuel startup focused on domestic uranium enrichment to produce LEU and HALEU for reactors, supporting American energy independe…

Atomarine designs and manufactures floating data center platforms cooled by seawater and powered by nuclear ships, enabling rapid, location-agnostic deployment…

Type One Energy is a fusion energy startup developing and commercializing stellarator-based power plants, including a project for the first grid-scale commercia…

Commonwealth Fusion Systems develops compact tokamak fusion power plants using high-temperature superconducting magnets to generate clean energy.

Lawrence Livermore National Laboratory is a US federal research lab focused on national security, nuclear deterrence, and scientific research across domains inc…

A minority-owned SDB providing classified nuclear safety, cybersecurity, and management support services to federal agencies including the DOE and DoD.

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

Xcimer Energy is an inertial fusion company developing excimer-based laser fusion technology to commercialize safe, affordable, and carbon-free fusion energy.

Helion develops pulsed magneto-inertial fusion technology to build commercial fusion power plants for clean electricity generation.