who owns nyseg

New York State Electric & Gas (NYSEG) is owned by Avangrid, Inc., which is a company that operates several electric and natural gas utilities. Avangrid itself is a member of the Iberdrola Group, a global energy company headquartered in Spain. As of a merger completed in early 2025, Iberdrola owns 100% of Avangrid, making NYSEG fully owned under this Spanish parent company. Thus, NYSEG is ultimately controlled by Iberdrola through its wholly owned subsidiary Avangrid.