Pepco Holdings, Inc. was a regulated electric utility holding company serving customers in the Mid-Atlantic region of the United States. Through its operating utilities, the company delivered electricity, maintained distribution infrastructure, and provided related customer and energy services to residential, commercial, and governmental customers.
Its principal subsidiaries included Potomac Electric Power Company, commonly known as Pepco, which served Washington, D.C., and parts of Maryland; Delmarva Power, which operated in Delaware and Maryland; and Atlantic City Electric, which served southern New Jersey. These utilities were responsible for electric distribution and, in some jurisdictions, related energy supply services.
Pepco Holdings was founded in 2001 through the combination of Pepco Corporation and Conectiv. Exelon Corporation completed its acquisition of Pepco Holdings in 2016, after which Pepco Holdings ceased operating as an independent publicly traded company. Its former utility businesses became part of Exelon’s regulated utilities portfolio, and the company’s historical stock listing is no longer active.
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