Investor-owned utilities served 72% of U.S. electricity customers in 2017
According to the U.S. Energy Information Administrations (EIA) electric power sector survey data, almost 3,000 electric distribution companiesor utilitieswere operating in the United States in 2017. EIA classifies utilities into three ownership types: investor-owned utilities, publicly run or managed utilities, and cooperatives. Although there are fewer investor-owned utilities than the other two types of utilities, they tend to be very large. Investor-owned utilities serve three out of every four utility customers nationwide.