| Jake Ketzner | Adventureland Amusement Park | Undecided | GA88 |
| Larry Blixt | Adventureland Amusement Park | Undecided | GA88 |
| Mark Joyce | Adventureland Amusement Park | Undecided | GA88 |
| Drew Kamp | Ames Chamber of Commerce | Undecided | GA88 |
| Jon Murphy | City of Cedar Falls | Supporting | GA88 |
| Tom Cope | City of Cedar Falls | Supporting | GA88 |
| Jon Murphy | City of Coralville | Supporting | GA88 |
| Tom Cope | City of Coralville | Supporting | 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 |
| Doug Struyk | City of Iowa City | Supporting | GA88 |
| Jennifer Dorman | City of Iowa City | Supporting | GA88 |
| Jim Carney | City of Iowa City | Supporting | GA88 |
| Tim Reilly | Department of Revenue | Undecided | GA88 |
| Andrea Woodard | Greater Des Moines Partnership | Undecided | GA88 |
| Brad Epperly | Greater Des Moines Partnership | Undecided | GA88 |
| Dustin Miller | Greater Des Moines Partnership | Undecided | GA88 |
| Joe Murphy | Greater Des Moines Partnership | Undecided | GA88 |
| Katie Graham | Greater Des Moines Partnership | Undecided | GA88 |
| Paula Dierenfeld | Greater Des Moines Partnership | Undecided | GA88 |
| Michael Triplett | Greater Iowa Apartment Association | Undecided | GA88 |
| Dane Schumann | Grow Clinton County | Supporting | GA88 |
| Maddie Wilcox | Grow Clinton County | Supporting | GA88 |
| Threase Harms | Grow Clinton County | Supporting | GA88 |
| Brad Epperly | Iowa Chamber Alliance | Undecided | GA88 |
| Dustin Miller | Iowa Chamber Alliance | Undecided | GA88 |
| John Stineman | Iowa Chamber Alliance | Undecided | GA88 |
| Katie Graham | Iowa Chamber Alliance | Undecided | GA88 |
| Paula Dierenfeld | Iowa Chamber Alliance | Undecided | 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 |
| Brian Johnson | Iowa Lodging Association | Supporting | GA88 |
| Craig Walter | Iowa Lodging Association | Supporting | GA88 |
| Joe Kelly | Iowa Manufactured Housing Association | Undecided | GA88 |
| Brad Epperly | Iowa Society of Certified Public Accountants | Undecided | GA88 |
| Dustin Miller | Iowa Society of Certified Public Accountants | Undecided | GA88 |
| Katie Graham | Iowa Society of Certified Public Accountants | Undecided | GA88 |
| Paula Dierenfeld | Iowa Society of Certified Public Accountants | Undecided | 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 |
| Jim Obradovich | Landlords of Iowa | Undecided | GA88 |
| Robert Mulqueen | Landlords of Iowa | Undecided | GA88 |
| Amy Campbell | Okoboji Tourism | Supporting | GA88 |
| Craig Patterson | Okoboji Tourism | Supporting | GA88 |
| Amy Campbell | Travel Federation of Iowa | Supporting | GA88 |
| Craig Patterson | Travel Federation of Iowa | Supporting | GA88 |