- Northwest Public Power Association (NWPPA)
- Montana Electric Cooperatives' Association- MECA
- Bonneville Power Administration
- Federated Rural Electric Insurance Exchange
Energy Assistance
Underground Line Locate
Cooperatives
- Beartooth Electric Cooperative
- Big Flat Electric Cooperative
- Fall River Rural Electric Cooperative
- Flathead Electric Cooperative
- Glacier Electric Cooperative
- Hill County Electric Cooperative
- Lincoln Electric Cooperative
- Lower Yellowstone REA
- Marias River Electric Cooperative
- McCone Electric Cooperative
- Missoula Electric Cooperative
- Northern Lights, INC
- Ravalli Electric Cooperative
- Sheridan Electric Cooperative
- Southeast Electric Cooperative
- Sun River Electric Cooperative
- Vigilante Electric Cooperative
- Yellowstone Valley Electric Cooperative