United Illuminating
The United Illuminating Company
United Illuminating is an electric utility company that transmits and distributes electricity to customers in the greater New Haven and Bridgeport areas of Connecticut, USA.
United Illuminating is a wholly-owned subsidiary of Avangrid, Inc. (NYSE: AGR). Avangrid itself is a subsidiary of Iberdrola, S.A. (BME: IBE), a Spanish multinational electric utility company.