The United Illuminating Company (UI) is a New Haven-based regional distribution utility established in 1899. UI is engaged in the purchase, transmission, distribution and sale of electricity and related services to more than 320,000 residential, commercial and industrial customers in the Greater New Haven and Bridgeport areas. UI’s World Wide Web address is www.uinet.com. UI's parent company, UIL Holdings Corporation, is traded on the New York Stock Exchange under the symbol UIL.
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