| Drew Kamp | Ames Chamber of Commerce | Supporting | GA86 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Supporting | GA86 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Withdrawn | GA86 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA86 |
| Gary Grant | City of Cedar Rapids | Undecided | GA86 |
| Larry Murphy | City of Cedar Rapids | Undecided | GA86 |
| Meghan Malloy | City of Cedar Rapids | Undecided | GA86 |
| Jim Obradovich | Coalition for Iowa Woodlands and Trees | Undecided | GA86 |
| Jim Obradovich | Conservation Districts of Iowa | Undecided | GA86 |
| Mark Foster | Greater Burlington Partnership | Supporting | GA86 |
| Andrea Woodard | Greater Des Moines Partnership | Supporting | GA86 |
| Andrea Woodard | Greater Des Moines Partnership | Undecided | GA86 |
| Brad Epperly | Greater Des Moines Partnership | Undecided | GA86 |
| Joseph Jones | Greater Des Moines Partnership | Supporting | GA86 |
| Joseph Jones | Greater Des Moines Partnership | Undecided | GA86 |
| Paula Dierenfeld | Greater Des Moines Partnership | Undecided | GA86 |
| Scott Sundstrom | Greater Des Moines Partnership | Undecided | GA86 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Undecided | GA86 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Undecided | GA86 |
| Rachel Geilenfeld | Iowa Association of Business and Industry (ABI) | Undecided | GA86 |
| Zach Dalluge | Iowa Association of Business and Industry (ABI) | Undecided | GA86 |
| Brice Oakley | Iowa Association of Regional Councils (IARC) | Undecided | GA86 |
| Don Avenson | Iowa Association of Regional Councils (IARC) | Undecided | GA86 |
| Tom Cope | Iowa Association of Regional Councils (IARC) | Undecided | GA86 |
| Jim Obradovich | Iowa Bicycle Coalition | Undecided | GA86 |
| Brad Epperly | Iowa Chamber Alliance | Supporting | GA86 |
| John Stineman | Iowa Chamber Alliance | Supporting | GA86 |
| Paula Dierenfeld | Iowa Chamber Alliance | Supporting | GA86 |
| Scott Sundstrom | Iowa Chamber Alliance | Supporting | GA86 |
| Tammie Krausman | Iowa Dept. of Natural Resources | Undecided | GA86 |
| Mikel Derby | Iowa Dept. of Transportation | Undecided | GA86 |
| Timothy Whipple | Iowa Economic Development Authority | Undecided | GA86 |
| Charlie Wishman | Iowa Federation of Labor, AFL-CIO | Supporting | GA86 |
| Dustin Miller | Iowa League of Cities | Supporting | GA86 |
| Robert Palmer | Iowa League of Cities | Supporting | GA86 |
| Kent Hartwig | Iowa Rivers Revival | Undecided | GA86 |
| Threase Harms | Iowa Rivers Revival | Undecided | GA86 |
| Jeffrey Boeyink | Iowa Speedway, LLC | Supporting | GA86 |
| Larry Blixt | Iowa Speedway, LLC | Supporting | GA86 |
| Jamie Cashman | Iowa State Association of Counties | Undecided | GA86 |
| Kristi Harshbarger | Iowa State Association of Counties | Undecided | GA86 |
| Lucas Beenken | Iowa State Association of Counties | Undecided | GA86 |
| William Peterson | Iowa State Association of Counties | Undecided | GA86 |
| Adam Phillips | Iowa State Treasurer's Office | Opposing | GA86 |
| Charlotte Eby | Iowa Water and Land Legacy | Undecided | GA86 |
| Chad Kleppe | Master Builders of Iowa | Undecided | GA86 |
| Bob Rafferty | Newbury Management Company | Undecided | GA86 |
| Brian Johnson | Polk County - Board of Supervisors | Undecided | GA86 |
| Amy Campbell | Professional Developers of Iowa (PDI) | Undecided | GA86 |
| Craig Patterson | Professional Developers of Iowa (PDI) | Undecided | GA86 |
| Gary Grant | Prospect Meadows, Inc. | Undecided | GA86 |
| Larry Murphy | Prospect Meadows, Inc. | Undecided | GA86 |
| Scott VanDeWoestyne | Quad Cities Chamber of Commerce | Supporting | GA86 |
| David Adelman | Team Iowa | Supporting | GA86 |
| Mark Joyce | Technology Association of Iowa | Supporting | GA86 |
| Amy Campbell | Travel Federation of Iowa | Supporting | GA86 |
| Craig Patterson | Travel Federation of Iowa | Supporting | GA86 |