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Our Company

The United Illuminating Company (UI), an Avangrid company, serves more than 347,000 customers in the greater New Haven and Bridgeport areas of Connecticut. We are committed to the well-being of our communities and to delivering innovative energy solutions and safe, reliable and affordable power to meet our customers’ needs.

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Learn More About United Illuminating

You’ll find additional information here about UI’s history, affiliates, and more.

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Additional Company Information

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News Room

Read the latest news releases from UI.

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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

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Award winning customer experience.

Dedicated to excellence, driven by you.

 

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