| Ted Stopulos | Alliant Energy Corporation | Undecided | GA91 |
| Brad Epperly | American Clean Power Association | Supporting | GA91 |
| Brad Epperly | American Clean Power Association | Undecided | GA91 |
| Casey Nickel | American Clean Power Association | Supporting | GA91 |
| Casey Nickel | American Clean Power Association | Undecided | GA91 |
| Dustin Miller | American Clean Power Association | Supporting | GA91 |
| Dustin Miller | American Clean Power Association | Undecided | GA91 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA91 |
| Cynthia Farmer | Center for Rural Affairs | Undecided | GA91 |
| John Cacciatore | Center for Rural Affairs | Undecided | GA91 |
| Brad Epperly | Clean Grid Alliance | Supporting | GA91 |
| Brad Epperly | Clean Grid Alliance | Undecided | GA91 |
| Casey Nickel | Clean Grid Alliance | Supporting | GA91 |
| Casey Nickel | Clean Grid Alliance | Undecided | GA91 |
| Dustin Miller | Clean Grid Alliance | Supporting | GA91 |
| Dustin Miller | Clean Grid Alliance | Undecided | GA91 |
| Sandra Conlin | Clean Grid Alliance | Supporting | GA91 |
| Nathan Mueller | County Planning and Zoning Officials of Iowa | Undecided | GA91 |
| Clare Gill | Dubuque Area Chamber of Commerce | Supporting | GA91 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Undecided | GA91 |
| Nick Boeyink | Iowa Conservative Energy Forum | Supporting | GA91 |
| Deanna Triplett | Iowa Economic Development Authority | Undecided | GA91 |
| Kevin Kuhle | Iowa Farm Bureau Federation | Opposing | GA91 |
| Matt Gronewald | Iowa Farm Bureau Federation | Opposing | GA91 |
| Matthew Steinfeldt | Iowa Farm Bureau Federation | Opposing | GA91 |
| Jefferson Fink | Iowa Public Airports Association | Undecided | GA91 |
| Jim Obradovich | Iowa Public Airports Association | Undecided | GA91 |
| Victoria Sinclair | Iowa Public Airports Association | Undecided | GA91 |
| Andrea Woodard | Iowa State Association of Counties | Undecided | GA91 |
| Jamie Cashman | Iowa State Association of Counties | Undecided | GA91 |
| Lucas Beenken | Iowa State Association of Counties | Undecided | GA91 |
| Andrea Woodard | Iowa State Association of County Supervisors | Undecided | GA91 |
| Jamie Cashman | Iowa State Association of County Supervisors | Undecided | GA91 |
| Lucas Beenken | Iowa State Association of County Supervisors | Undecided | GA91 |
| Gary Grant | Linn County Board of Supervisors | Undecided | GA91 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA91 |
| Dane Schumann | Mid-American Carpenters Regional Council | Undecided | GA91 |
| David Adelman | MidAmerican Energy Company | Undecided | GA91 |
| Frank Chiodo | MidAmerican Energy Company | Undecided | GA91 |
| Matt Hinch | MidAmerican Energy Company | Undecided | GA91 |
| Onnalee Gettler | MidAmerican Energy Company | Undecided | GA91 |
| Scott Newhard | MidAmerican Energy Company | Undecided | GA91 |
| Michael Triplett | Ranger Power | Undecided | GA91 |
| Gary Grant | Urban County Coalition | Undecided | GA91 |
| Larry Murphy | Urban County Coalition | Undecided | GA91 |