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Our Company

We’re here to help you. Find answers to Frequently Asked Questions (FAQs) or check out our Energy Library for UI's monthly newsletter. Can’t find the answer you’re looking for? You can always contact us online or by phone.

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Giving Back

Giving Back

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Who We Are

Who We Are

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Service Area

UI is engaged in the purchase, transmission, distribution and sale of electricity and related services to approximately 338,654 residential, commercial and industrial customers in the greater New Haven and Bridgeport areas of Connecticut.

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Affiliates

Avangrid Networks combines the resources and expertise of eight electric and natural gas utilities with an $8.3 billion rate base serving 3.1 million customers in New York and New England.

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Financial Information

United Illuminating (UI) is a wholly-owned subsidiary of AVANGRID.

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