| Member Name | Description |
| Alliant Energy - Interstate Power and Light Co | Interstate Power and Light Company (IPL), an Alliant Energy Company, s... |
| Ardent Lighting Group L.L.C. | Ardent Lighting Group L.L.C. - Green products, site lighting, landscap... |
| Black Hills Energy Corporation | Black Hills Energy Corporation provides safe, reliable natural gas to ... |
| Central Iowa Power Cooperative | Central Iowa Power Cooperative specializes in wholesale electricity an... |
| Consumers Energy | Consumers Energy is an energy services and delivery company operating ... |
| ITC Midwest | ITC Midwest purchased the nearly 7,000 miles of high-voltage electric ... |
| MidAmerican Energy Company | MidAmerican Energy Company, Iowa’s largest energy company, provides el... |
| The Energy Group | The Energy Group is a project development and energy management firm a... |
| The Schemmer Associates Inc. | Schemmer is a full-service, engineering, architectural and planning fi... |
| Western Iowa Municipal Electric Cooperative Association | A municipal electric cooperative has been serving the communities of A... |
| Ziegler Power Systems | Ziegler Power Systems provides power related products and services, ra... |
