Utilities Utilities Search | Advanced Search | New Members | Coupons and Discounts | All Categories Sort alphabetically by... Name City Regional Water Authority _ 90 Sargent DriveNew Haven, CT 06511 203-401-2598 Learn More | Visit Site Eversource Energy _ PO Box 270Hartford, CT 06141 800-989-0900 Learn More | Visit Site Aquarion Water Company of Connecticut _ 714 Black Rock RoadEaston, CT 06612 203-445-7455 Learn More | Visit Site United Illuminating _ 60 Marsh HillOrange, CT 06477 203-499-2247 Learn More | Visit Site CPV Towantic _ 16 Woodruff Hill RoadOxford, CT 06478 203-727-8405 Learn More | Visit Site Iroquois Gas Transmission System _ One Corporate Drive Ste 600Shelton, CT 06484 203-925-7200 Learn More | Visit Site If your business isn't here, contact us today to get listed!