| Jon Murphy | American Planning Association Iowa Chapter | Supporting | GA90 |
| Tom Cope | American Planning Association Iowa Chapter | Supporting | GA90 |
| Brad Epperly | Ames Regional Economic Alliance | Undecided | GA90 |
| Dustin Miller | Ames Regional Economic Alliance | Undecided | GA90 |
| Jon Murphy | City of Cedar Falls | Supporting | GA90 |
| Tom Cope | City of Cedar Falls | Supporting | GA90 |
| Gary Grant | City of Cedar Rapids | Undecided | GA90 |
| Larry Murphy | City of Cedar Rapids | Undecided | GA90 |
| Jon Murphy | City of Coralville | Supporting | GA90 |
| Tom Cope | City of Coralville | Supporting | GA90 |
| Doug Struyk | City of Des Moines | Supporting | GA90 |
| Emilee Harris-Puricelli | City of Des Moines | Supporting | GA90 |
| Jen Schulte | City of Des Moines | Supporting | GA90 |
| Jennifer Dorman | City of Des Moines | Supporting | GA90 |
| Jim Carney | City of Des Moines | Supporting | GA90 |
| Doug Struyk | City of Iowa City | Supporting | GA90 |
| Jennifer Dorman | City of Iowa City | Supporting | GA90 |
| Jim Carney | City of Iowa City | Supporting | GA90 |
| Doug Struyk | City of Waukee | Supporting | GA90 |
| Jennifer Dorman | City of Waukee | Supporting | GA90 |
| Jim Carney | City of Waukee | Supporting | GA90 |
| Sydney Gangestad | City of West Des Moines | Undecided | GA90 |
| Tim Coonan | City of West Des Moines | Undecided | GA90 |
| Drew Kamp | Council Bluffs Chamber of Commerce | Undecided | GA90 |
| Ryan Sempf | Dubuque Area Chamber of Commerce | Undecided | GA90 |
| Andrea Woodard | Greater Des Moines Partnership | Undecided | GA90 |
| Brad Epperly | Greater Des Moines Partnership | Undecided | GA90 |
| Dustin Miller | Greater Des Moines Partnership | Undecided | GA90 |
| Jon Murphy | Iowa Association of Councils of Governments | Supporting | GA90 |
| Tom Cope | Iowa Association of Councils of Governments | Supporting | GA90 |
| Brad Epperly | Iowa Chamber Alliance | Undecided | GA90 |
| Dustin Miller | Iowa Chamber Alliance | Undecided | GA90 |
| Kevin Kuhle | Iowa Farm Bureau Federation | Undecided | GA90 |
| Matt Gronewald | Iowa Farm Bureau Federation | Undecided | GA90 |
| Matthew Steinfeldt | Iowa Farm Bureau Federation | Undecided | GA90 |
| Alan Kemp | Iowa League of Cities | Supporting | GA90 |
| Daniel Stalder | Iowa League of Cities | Supporting | GA90 |
| Robert Palmer | Iowa League of Cities | Supporting | GA90 |
| Amy Campbell | Iowa Library Association (ILA) | Undecided | GA90 |
| Craig Patterson | Iowa Library Association (ILA) | Undecided | GA90 |
| Victoria Sinclair | Iowans for Tax Relief | Undecided | GA90 |
| Gary Grant | Linn County Board of Supervisors | Undecided | GA90 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA90 |
| John Hall | Marshalltown Area Chamber of Commerce | Undecided | GA90 |
| David Adelman | Metropolitan Coalition | Supporting | GA90 |
| Frank Chiodo | Metropolitan Coalition | Supporting | GA90 |
| Lillie Brady | Metropolitan Coalition | Supporting | GA90 |
| Matt Hinch | Metropolitan Coalition | Supporting | GA90 |
| Sara Allen | Metropolitan Coalition | Supporting | GA90 |
| Amy Campbell | Professional Developers of Iowa (PDI) | Undecided | GA90 |
| Craig Patterson | Professional Developers of Iowa (PDI) | Undecided | GA90 |
| Brad Epperly | Quad Cities Chamber of Commerce | Undecided | GA90 |
| Dustin Miller | Quad Cities Chamber of Commerce | Undecided | GA90 |
| Gary Grant | Urban County Coalition | Undecided | GA90 |
| Larry Murphy | Urban County Coalition | Undecided | GA90 |