Our Company
UI is engaged in the purchase, transmission, distribution and sale of electricity and related services to approximately 341,000 residential, commercial, and industrial customers in the greater New Haven and Bridgeport areas of Connecticut. UI's service territory includes 17 Connecticut towns and cities in an area totaling 335 square miles along or near the shoreline of Long Island Sound. We strive daily to provide safe, reliable service to customers and value to our communities.
Learn More About United Illuminating
You’ll find additional information here about UI’s history, affiliates, and more.
Reliable Service
We’re constantly updating and improving our system, using the latest technologies and materials to ensure safe, uninterrupted service now and in the future.
Our History
The United Illuminating Company has served the energy needs the Greater Bridgeport and New Haven areas since 1899.
Careers
We’re looking for talented and motivated employees who share our commitment to our customers, our environment, and the communities we serve.
Additional Company Information
Financial Information
United Illuminating (UI) is a wholly-owned subsidiary of AVANGRID, Inc. View the most current financial information, including quarterly and annual filings at AVANGRID.com.
Financial Information
AVANGRID and AVANGRID Networks
United Illuminating is a subsidiary of AVANGRID, Inc. Avangrid Networks combines the resources and expertise of eight electric and natural gas utilities with an $11.7 billion rate base serving 3.3 million customers in New York and New England.
Avangrid Networks