| Mazie Stilwell | AFSCME Iowa Council 61 | Undecided | GA87 |
| Morgan Miller | AFSCME Iowa Council 61 | Undecided | GA87 |
| Sandra Conlin | Associated Builders & Contractors of Iowa | Undecided | GA87 |
| Eric Goranson | Habitat for Humanity of Iowa | Supporting | GA87 |
| Jay Iverson | Home Builders Association of Iowa | Supporting | GA87 |
| Eric Goranson | Iowa Alliance of Surety Companies | Withdrawn | GA87 |
| Eric Goranson | Iowa Alliance of Surety Companies | Opposing | GA87 |
| Karla Fultz McHenry | Iowa Alliance of Surety Companies | Opposing | GA87 |
| Michael Triplett | Iowa Alliance of Surety Companies | Opposing | GA87 |
| Michael Triplett | Iowa Alliance of Surety Companies | Undecided | GA87 |
| Jim Obradovich | Iowa Association of Building Officials | Undecided | GA87 |
| Pete McRoberts | Iowa Association of Building Officials | Undecided | GA87 |
| Robert Mulqueen | Iowa Association of Building Officials | Withdrawn | GA87 |
| Robert Mulqueen | Iowa Association of Building Officials | Opposing | GA87 |
| Robert Mulqueen | Iowa Association of Building Officials | Undecided | GA87 |
| Brad Hartkopf | Iowa Association of Business and Industry (ABI) | Opposing | GA87 |
| Jessica Hyland | Iowa Association of Business and Industry (ABI) | Opposing | GA87 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Opposing | GA87 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Opposing | GA87 |
| Jon Murphy | Iowa Association of Councils of Governments (IARC) | Supporting | GA87 |
| Tom Cope | Iowa Association of Councils of Governments (IARC) | Supporting | GA87 |
| Timothy Whipple | Iowa Association of Municipal Utilities | Supporting | GA87 |
| Robert Hartwig | Iowa Bankers Association | Supporting | GA87 |
| Sharon Presnall | Iowa Bankers Association | Supporting | GA87 |
| Michael Savala | Iowa Dept. of Corrections | Supporting | GA87 |
| Charlie Wishman | Iowa Federation of Labor, AFL-CIO | Undecided | GA87 |
| Charlie Wishman | Iowa Federation of Labor, AFL-CIO | Opposing | GA87 |
| Wes Peterson | Iowa Finance Authority | Undecided | GA87 |
| Alan Kemp | Iowa League of Cities | Supporting | GA87 |
| Robert Palmer | Iowa League of Cities | Supporting | GA87 |
| Joe Kelly | Iowa Manufactured Housing Association | Opposing | GA87 |
| Doug Struyk | Iowa State Bar Association | Supporting | GA87 |
| Jennifer Dorman | Iowa State Bar Association | Supporting | GA87 |
| Jim Carney | Iowa State Bar Association | Supporting | GA87 |
| Marty Ryan | Justice Reform Consortium | Supporting | GA87 |
| Marty Ryan | Justice Reform Consortium | Withdrawn | GA87 |
| Marty Ryan | Justice Reform Consortium | Undecided | GA87 |
| Stephanie Fawkes-Lee | Justice Reform Consortium | Supporting | GA87 |
| Stephanie Fawkes-Lee | Justice Reform Consortium | Undecided | GA87 |
| Ben Hammes | Master Builders of Iowa | Opposing | GA87 |
| Chad Kleppe | Master Builders of Iowa | Opposing | GA87 |
| Julie Smith | Master Builders of Iowa | Opposing | GA87 |