Joint Action Agencies
- American Municipal Power
- Arkansas River Power Authority
- Badger Power Marketing Authority
- Blue Ridge Power Agency
- Central Municipal Power Agency/Services
- Connecticut Municipal Electric Energy Cooperative
- Delaware Municipal Electric Corporation
- Eastside Power Authority
- Energy Northwest
- Energy Southeast
- Florida Municipal Power Agency
- Grand River Dam Authority
- Great Lakes Utilities
- Heartland Energy
- Illinois Municipal Electric Agency
- Indiana Municipal Power Agency
- Intermountain Power Agency
- Kansas Municipal Energy Agency
- Kansas Power Pool
- Kentucky Municipal Energy Agency
- Kentucky Municipal Power Agency
- Louisiana Energy and Power Authority
- M-S-R Public Power Agency
- Massachusetts Municipal Wholesale Electric Co
- MEAG Power
- Michigan Public Power Agency
- Michigan South Central Power Agency
- Minnesota Municipal Power Agency
- Missouri Public Utility Alliance
- Missouri River Energy Services
- Municipal Energy Agency of Mississippi
- NMPP Energy: Municipal Energy Agency of Nebraska
- North Carolina Eastern Municipal Power Agency
- North Carolina Municipal Power Agency No. 1
- North Iowa Municipal Electric Cooperative Association
- Northern California Power Agency
- Northern Illinois Municipal Power Agency
- Northern Municipal Power Agency
- Oceti Sakowin Power Authority
- Oklahoma Municipal Power Authority
- Piedmont Municipal Power Agency
- Platte River Power Authority
- Sam Rayburn Municipal Power Agency
- Southern California Public Power Authority
- Southern Minnesota Municipal Power Agency
- Southwest Public Power Agency
- Texas Municipal Power Agency
- Transmission Agency of Northern California
- Tri-Dam Power Authority
- Upper Midwest Municipal Energy Group
- Utah Associated Municipal Power Systems
- Utah Municipal Power Agency
- Vermont Public Power Supply Authority
- West Texas Municipal Power Agency
- Western States Power Corporation
- WPPI Energy
- Wyoming Municipal Power Agency
State and Regional Associations
- Alaska Power Association
- Arizona Municipal Power Users' Association
- Arkansas Electric Cooperatives
- Association of California Water Agencies
- California Municipal Utilities Association
- Canadian Electricity Association
- Central Service Association (Tennessee Valley)
- Colorado Association of Municipal Utilities
- Colorado River Energy Distributors Association
- Colorado Rural Electric Association
- Electric Cities of Alabama
- Electric Cities of Georgia
- ElectriCities of North Carolina
- Electricity Distributors Association
- Florida Electric Cooperatives Association
- Florida Municipal Electric Association
- Grand Canyon State Electric Cooperative Association
- Idaho Consumer-Owned Utilities Association
- Illinois Municipal Utilities Association
- Indiana Municipal Electric Association
- Iowa Association of Municipal Utilities
- Irrigation & Electrical Districts Association of Arizona
- Kansas Municipal Utilities
- Kentucky Association of Electric Cooperatives
- Kentucky Municipal Utilities Association (dba MEPAK)
- Michigan Municipal Electric Association
- Mid-West Electric Consumers Association
- Minnesota Municipal Utilities Association
- Missouri Association of Municipal Utilities
- Municipal Electric Association of Massachusetts
- Municipal Electric Power Association of Virginia
- Municipal Electric Systems of Oklahoma
- Municipal Electric Utilities Association of New York
- Municipal Electric Utilities of Wisconsin
- Nebraska Rural Electric Association
- New Mexico Rural Electric Cooperative Association
- New York Association of Public Power
- NMPP Energy: Nebraska Municipal Power Pool
- North Dakota Association of RECs
- Northeast Public Power Association
- Northwest Public Power Association
- Northwest Requirements Utilities
- Ohio Municipal Electric Association
- Oklahoma Association of Electric Cooperatives
- Oregon Municipal Electric Utilities Association
- Oregon People's Utility District Association
- Pennsylvania Municipal Electric Association
- Pennsylvania Rural Electric Association
- Public Power Association of New Jersey
- Public Power Council
- South Carolina Association of Municipal Power Systems
- South Dakota Municipal Electric Association
- Southwestern Power Resources Association
- Tennessee Municipal Electric Power Association
- Tennessee Valley Public Power Association
- Texas Electric Cooperatives
- Texas Public Power Association
- Utilities Section, Nebraska League of Municipalities
- Washington Public Utility Districts Association
- Western Fuels Association, Inc.
- Wyoming Rural Electric Association