Multi-Regional and Multi-National Energy Companies, Independent Power Producers, Wholesale Generators

Unlike the catalog of NERC Reliability Region that arises out of its connection to transmission and reliability councils, and unlike the catalog of state related utilities that arises out of regional orientation, and unlike the catalog of Natural Gas, Pipeline and Petroleum companies that arises out of a connection to fuel supply, this catalog of Multi-Regional and Multi-National companies arises out of desire to buy, sell or produce electricity or to buy, sell or build power plants for  wholesale electric markets unbounded by other relationships to the markets and is, therefore, not easily classified by any other category.

Subsidiary companies are listed as subordinate to parent companies.  So if you are unfamiliar with the name of the parent company on this page, perform a search/find on the name you are seeking.

See also:
    Natural Gas, Natural Gas Pipelines, Petroleum
    NERC & Reliability Regions
    USA State and Geographic Regions