List of nuclear power companies

Nuclear reactor design company founded by a group that includes Bill Gates. In addition to efficient nuclear power, TerraPower is also researching the how the heat generated by nuclear reactions could be used for purposes other than turning steam turbines.

Deep Isolation offers an innovative solution to secure and dispose of nuclear waste.

Flibe Energy is an American company that intends to design, construct, and operate small modular reactors based on liquid fluoride thorium reactor (acronym LFTR; pronounced lifter) technology.

Seaborg develops the Compact Molten Salt Reactor - a small modular reactor based on molten fluoride salt.

Centrus Energy is a trusted supplier of nuclear fuel and services for the nuclear power industry.

A leading Swiss electricity producer and energy services provider that is active throughout Europe.

The mission of Advanced Reactor Concepts (ARC) is to commercialize a disruptive new technology for power generation in the form of an advanced small modular nuclear reactor.

Energy company supplying electricity and natural gas to homes, businesses and wholesale customers in the Eastern United States.

Terrestrial Energy is developing molten salt nuclear reactors.

Electric power holding company operating in the United States with a diverse power generation portfolio including renewable assets.

Power generating company in Slovakia and one of the largest in Central and Eastern Europe.

Company providing nuclear fuel cycle technology and consulting solutions.

A company providing treatment, disposal and interim storage of low-level radioactive waste in the United States.

One of Europe’s largest generators of electricity and one of the largest producers of heat, 100%-owned by the Swedish state.

A company developing lead-cooled small nuclear reactor technology.

Company developing modular and scalable small nuclear power systems.

BWX Technologies is a company that is a supplier of nuclear components and fuel to the United States government

Established in 1867, B&W is a global leader in energy and environmental technologies and services for the power and industrial markets.

Exelon's family of companies represents every stage of the energy value chain. Operating in 48 states, Washington D.C., and Canada.

A subsidiary of Southern Company, operating nuclear power units at 3 power plants in Alabama and Georgia.

Enel is a multi-national power company and a leading integrated player in the world's power and gas markets.

A company operating Europe's largest gas pipeline network, including the French system, and a global fleet of power plants with 60 net gigawatts of capacity.

U-Battery is a micro nuclear reactor which will be able to produce local power and heat for a range of energy needs.

DBD is an independent global enterprise providing innovative solutions to complex technical engineering and strategic challenges in highly regulated industries.

A Russian nuclear engineering company developing WWER plants. It is a subsidiary of the Russian state atomic energy corporation Rosatom.