AVANGRID (formerly Energy East and Iberdrola USA), is an energy services and delivery company. AVANGRID serves about 3.1 million customers throughout upstate New York and New England in the United States.

In 2008 Iberdrola USA purchased Energy East. Iberdrola renamed the company Iberdrola USA.

In November 2010, Iberdrola USA sold its gas distribution companies in Connecticut and Massachusetts, the Southern Connecticut Gas Company, Connecticut Natural Gas Corporation, and the Berkshire Gas Company, to UIL Holdings Corporation.

In 2012, Iberdrola USA sold its energy services companies, Energetix and NYSEG Solutions, to Direct Energy.

In February 2015, Iberdrola USA announced that it had entered into a merger agreement with UIL Holdings Corporation under which UIL Holdings Corporation would merge into a subsidiary of Iberdrola USA, Inc. In December 2015, "Iberdrola USA finalized its acquisition of UIL Holdings ... to create a new company, AVANGRID, which will be listed on the New York Stock Exchange as AGR."

Avangrid won an auction for an offshore wind area near North Carolina by bidding $9 million in March 2017.