UI, The United Illuminating Company, was formed in 1899 when the Bridgeport Electric Company merged with the New Haven Electric Company. UI is a regional distribution utility providing electricity and energy-related services to more than 320,000 customers in the Greater New Haven and Greater Bridgeport areas. (see map)

UI doesn't generate electricity, but purchases, transmits, distributes and sells it to residential, commercial and industrial customers in a service area of about 335 square miles. This service area includes the principal cities of Bridgeport and New Haven and their surrounding municipalities: Ansonia, Derby, East Haven, Easton, Fairfield, Hamden, Milford, North Branford, North Haven, Orange, Shelton, Stratford, Trumbull, West Haven and Woodbridge. The population of this area is approximately 726,000 or 21% of Connecticut's population.

At UI, we've always been dedicated to the communities we serve. That's why we provide more than electricity. We spearhead conservation efforts, encourage economic growth, assist area businesses and fund important charity organizations through established and often one-of-a-kind programs.