- City of Cerritos
- City of Lompoc
- City of College Station Utility
- Henkels & McCoy
- Hot Line Construction
- IBEW 1245
- Idaho Power
- Imperial Irrigation District
- Island Energy
- Liberty Utilities
- Parkia Inc.
- Pasadena Water and Power
- Truckee Donner Public Utility District
- WAPA (Western Area Power Administration)
