- Alabama Gas Corporation
- City of Bayou LaBatre
- City of Birmingham-Water
- City of Calera Gas & Water Department
- City of Demopolis
- Choctaw County Water
- Colbert County Water Authority
- Colbert County Water Authority
- Dallas County Water Authority
- Pioneer Electric
- Remlap Water & Fire Protection Authority
- River Gas Coprporation
- Sheffield Utilities
- St. Clair Water Authority
- Sumter County Water Authority
- Trussville Utilities
- VAW Water & Fire Protection
- Wallace Community College-Hanceville
- Walter Water & Fire Protection Authority
- West Autuaga Water Authority