| Steven Van Steenhuyse | American Planning Association Iowa Chapter | Supporting | GA88 |
| Drew Kamp | Ames Chamber of Commerce | Undecided | GA88 |
| Kate Walton | City of Bettendorf | Undecided | GA88 |
| Matt Eide | City of Bettendorf | Undecided | GA88 |
| Gary Grant | City of Cedar Rapids | Supporting | GA88 |
| Gary Grant | City of Cedar Rapids | Withdrawn | GA88 |
| Gary Grant | City of Cedar Rapids | Undecided | GA88 |
| Larry Murphy | City of Cedar Rapids | Supporting | GA88 |
| Larry Murphy | City of Cedar Rapids | Withdrawn | GA88 |
| Larry Murphy | City of Cedar Rapids | Undecided | GA88 |
| Meghan Malloy | City of Cedar Rapids | Supporting | GA88 |
| Meghan Malloy | City of Cedar Rapids | Withdrawn | GA88 |
| Meghan Malloy | City of Cedar Rapids | Undecided | GA88 |
| Alex Hassel | City of Des Moines | Supporting | GA88 |
| Doug Struyk | City of Des Moines | Supporting | GA88 |
| Jen Schulte | City of Des Moines | Supporting | GA88 |
| Jennifer Dorman | City of Des Moines | Supporting | GA88 |
| Jim Carney | City of Des Moines | Supporting | GA88 |
| Maddie Wilcox | Grow Clinton County | Supporting | GA88 |
| Maddie Wilcox | Grow Clinton County | Undecided | GA88 |
| Threase Harms | Grow Clinton County | Supporting | GA88 |
| Threase Harms | Grow Clinton County | Undecided | GA88 |
| Eric Goranson | Habitat for Humanity of Iowa | Supporting | GA88 |
| Jay Iverson | Home Builders Association of Iowa | Supporting | GA88 |
| Brad Hartkopf | Iowa Association of Business and Industry (ABI) | Undecided | GA88 |
| John Davis | Iowa Association of Business and Industry (ABI) | Undecided | GA88 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Undecided | GA88 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Undecided | GA88 |
| Jon Murphy | Iowa Association of Councils of Governments | Supporting | GA88 |
| Tom Cope | Iowa Association of Councils of Governments | Supporting | GA88 |
| Jennifer Kingland | Iowa Association of Realtors | Undecided | GA88 |
| Emily Piper | Iowa Association of School Boards | Undecided | GA88 |
| Phil Jeneary | Iowa Association of School Boards | Undecided | GA88 |
| Jenica Lensmeyer | Iowa Bankers Association | Undecided | GA88 |
| Mike Rozenboom | Iowa Bankers Association | Undecided | GA88 |
| Robert Hartwig | Iowa Bankers Association | Undecided | GA88 |
| Sharon Presnall | Iowa Bankers Association | Undecided | GA88 |
| Brad Epperly | Iowa Chamber Alliance | Undecided | GA88 |
| Dustin Miller | Iowa Chamber Alliance | Undecided | GA88 |
| Katie Graham | Iowa Chamber Alliance | Undecided | GA88 |
| Paula Dierenfeld | Iowa Chamber Alliance | Undecided | GA88 |
| Gracie Brandsgard | Iowa Credit Union League | Undecided | GA88 |
| Justin Hupfer | Iowa Credit Union League | Undecided | GA88 |
| Bob Rafferty | Iowa Housing Partnership | Supporting | GA88 |
| Rachel Ong | Iowa Housing Partnership | Supporting | GA88 |
| Alan Kemp | Iowa League of Cities | Supporting | GA88 |
| Daniel Stalder | Iowa League of Cities | Supporting | GA88 |
| Robert Palmer | Iowa League of Cities | Supporting | GA88 |
| Jamie Cashman | Iowa State Association of Counties | Supporting | GA88 |
| Kristi Harshbarger | Iowa State Association of Counties | Supporting | GA88 |
| Lucas Beenken | Iowa State Association of Counties | Supporting | GA88 |
| William Peterson | Iowa State Association of Counties | Supporting | GA88 |
| Jamie Cashman | Iowa State Association of County Supervisors | Supporting | GA88 |
| Kristi Harshbarger | Iowa State Association of County Supervisors | Supporting | GA88 |
| Lucas Beenken | Iowa State Association of County Supervisors | Supporting | GA88 |
| William Peterson | Iowa State Association of County Supervisors | Supporting | GA88 |
| Doug Struyk | Iowa State Bar Association | Supporting | GA88 |
| Jennifer Dorman | Iowa State Bar Association | Supporting | GA88 |
| Jim Carney | Iowa State Bar Association | Supporting | GA88 |
| Ben Hammes | Master Builders of Iowa | Undecided | GA88 |
| Julie Smith | Master Builders of Iowa | Undecided | GA88 |
| Brian Johnson | Polk County - Board of Supervisors | Undecided | GA88 |
| Amy Campbell | Professional Developers of Iowa (PDI) | Supporting | GA88 |
| Craig Patterson | Professional Developers of Iowa (PDI) | Supporting | GA88 |
| Amy Campbell | Travel Federation of Iowa | Undecided | GA88 |
| Craig Patterson | Travel Federation of Iowa | Undecided | GA88 |
| Doug Struyk | Wells Fargo & Company | Supporting | GA88 |
| Jennifer Dorman | Wells Fargo & Company | Supporting | GA88 |
| Jim Carney | Wells Fargo & Company | Supporting | GA88 |