| Brad Epperly | Ames Chamber of Commerce | Supporting | GA89 |
| Dustin Miller | Ames Chamber of Commerce | Supporting | GA89 |
| Barbra Solberg | Cedar Rapids Metro Economic Alliance | Supporting | GA89 |
| Drew Kamp | Council Bluffs Chamber of Commerce | Supporting | GA89 |
| Ryan Sempf | Dubuque Area Chamber of Commerce | Supporting | GA89 |
| Andrea Woodard | Greater Des Moines Partnership | Supporting | GA89 |
| Brad Epperly | Greater Des Moines Partnership | Supporting | GA89 |
| Dustin Miller | Greater Des Moines Partnership | Supporting | GA89 |
| Alex Cutchey | Iowa Association of Municipal Utilities | Supporting | GA89 |
| Brad Epperly | Iowa Chamber Alliance | Supporting | GA89 |
| Dustin Miller | Iowa Chamber Alliance | Supporting | GA89 |
| Sydney Gangestad | Iowa Confluence Water Trails | Supporting | GA89 |
| Tim Coonan | Iowa Confluence Water Trails | Supporting | GA89 |
| Kevin Kuhle | Iowa Farm Bureau Federation | Undecided | GA89 |
| Matt Gronewald | Iowa Farm Bureau Federation | Undecided | GA89 |
| Matthew Steinfeldt | Iowa Farm Bureau Federation | Undecided | GA89 |
| Alan Kemp | Iowa League of Cities | Supporting | GA89 |
| Daniel Stalder | Iowa League of Cities | Supporting | GA89 |
| Robert Palmer | Iowa League of Cities | Supporting | GA89 |
| David Adelman | Iowa Travel Industry Partners | Supporting | GA89 |
| Frank Chiodo | Iowa Travel Industry Partners | Supporting | GA89 |
| Lillie Brady | Iowa Travel Industry Partners | Supporting | GA89 |
| Matt Hinch | Iowa Travel Industry Partners | Supporting | GA89 |
| Sara Allen | Iowa Travel Industry Partners | Supporting | GA89 |
| Victoria Sinclair | Iowans for Tax Relief | Undecided | GA89 |
| David Adelman | Metropolitan Coalition | Supporting | GA89 |
| Frank Chiodo | Metropolitan Coalition | Supporting | GA89 |
| Lillie Brady | Metropolitan Coalition | Supporting | GA89 |
| Matt Hinch | Metropolitan Coalition | Supporting | GA89 |
| Sara Allen | Metropolitan Coalition | Supporting | GA89 |
| Onnalee Gettler | MidAmerican Energy Company | Supporting | GA89 |
| Amy Campbell | Professional Developers of Iowa (PDI) | Supporting | GA89 |
| Craig Patterson | Professional Developers of Iowa (PDI) | Supporting | GA89 |
| Brad Epperly | Quad Cities Chamber of Commerce | Supporting | GA89 |
| Dustin Miller | Quad Cities Chamber of Commerce | Supporting | GA89 |