There are two major electric distribution companies in Connecticut, Eversource, formerly Connecticut Light & Power Company, and United Illuminating Company. As of 2015, both companies service the entire state of Connecticut.
In addition to Eversource and United Illuminating Company, there are a number of municipal electric distribution companies in Connecticut. These include Bozrah Light & Power, Groton Utilities, Norwich Public Utilities, South Norwalk Electric Works and Wallingford DPU.
Contact information for all of these companies, including Eversource and United Illuminating Company, can be found on the Connecticut Department of Energy & Environmental Protection website. Customer service and emergency phone numbers are also available on the website.