Electricity companies

Southern Company is a company engaged in the generation, transmission, and distribution of electricity operating natural gas distribution and electric utilities.

Energisa is an energy distribution company.

American Electric Power (AEP) is a utility holding company that engages in the generation, transmission, and distribution of electricity for sale to retail and wholesale customers.

Exelon is a utility company that specializes in energy distribution and transmission solutions.

Tohoku Electric Power (東北電力株式会社) is an electric utility company that provides energy services.

Sempra Energy is an energy-services holding company.

Vistra (formerly known as Vistra Energy, TCEH) is a holding company that operates an integrated retail and electric power generation provider.

Edison International is a utility holding company which through its subsidiary Southern California Edison (SCE) distributes electricity in central, coastal, and southern California.

PPL Corporation is a global energy company, delivering electricity and natural gas to customers in Pennsylvania, Kentucky and the United Kingdom.

AVANGRID (formerly Energy East and Iberdrola USA) is a diversified energy and utility company managing regulated utilities and electricity generation.

NiSource is an energy holding company which operates as a regulated natural gas and electric utility company.

Dubai Electricity and Water is a provider of electricity and water services.