Public Utilities & Environment All Categories... Utilities go Results Found: 4 Comcast Business Class Comcast Business Class 322 Nashua Road Londonderry NH 03053 (617) 279-5015 NextEra Energy Seabrook NextEra Energy Seabrook P.O. Box 300 Seabrook NH 03874 (603) 773-7718 Eversource Energy Eversource Energy PO Box 330 Manchester NH 03105 (800) 662-7764 Unitil Unitil 325 West Road Portsmouth NH 03801 (800) 582-7276 Tweets by ExeterChamberNH