| Company | City | Service Type | Products |
| Blake Electric, Inc. | Waukon | Residential, | Solar Electric (pv), |
| CB Wind and Solar | Ankeny | Residential, | Solar Electric (pv), Wind Power, |
| CB Wind Systems – IowHOT | Ankeny | Residential, ,Commercial, ,Utilities, ,Municipal, | Solar Electric (pv), Wind Power, |
| EcoWise Power | Des Moines | Residential, ,Commercial, ,Utilities, ,Municipal, | Solar Electric (pv), Wind Power, |
| Go Solar | Decorah | Residential, | Solar Electric (pv), |
| Gwa International – Des Moines | Des Moines | Residential, | Solar Electric (pv), |
| Gwa International – Johnston | Johnston | Residential, | Solar Electric (pv), |
| HMP Constructors | Clive | Residential, | Solar Electric (pv), Solar Hot Water (thermal), |
| Innovative Kinetics | Des Moines | Residential, | Solar Electric (pv), |
| Moxie Solar | North Liberty | Residential, Commercial, | Solar Electric (pv), |
| Spatial Designs Energy | Mason City | Residential, | Solar Electric (pv), |
| SunRackSolar, LLC | Clear Lake | Residential, | Solar Electric (pv), |
