| Colin Grace | Animal Rescue League Iowa, Inc. | Undecided | GA88 |
| Keith Saunders | Board of Regents, State of Iowa | Undecided | GA88 |
| Kristin Bauer | Board of Regents, State of Iowa | Undecided | GA88 |
| Mark Braun | Board of Regents, State of Iowa | Undecided | GA88 |
| Mary Braun | Board of Regents, State of Iowa | Undecided | GA88 |
| David McDonald | Cedar Rapids Kennel Association | Supporting | GA88 |
| David McDonald | Cedar Rapids Kennel Association | Undecided | GA88 |
| Steven Exline | Des Moines Kennel Club, Inc. | Supporting | GA88 |
| Jim Obradovich | Iowa Conservation Alliance | Undecided | GA88 |
| Pete McRoberts | Iowa Conservation Alliance | Undecided | GA88 |
| Jim Obradovich | Iowa Coon Hunters Association | Undecided | GA88 |
| Maison Bleam | Iowa Department of Agriculture & Land Stewardship | Undecided | GA88 |
| Jill Altringer | Iowa Federation of Animal Owners | Undecided | GA88 |
| Jon Murphy | Iowa Greyhound Association | Undecided | GA88 |
| Tom Cope | Iowa Greyhound Association | Undecided | GA88 |
| Haley Anderson | Iowa Pet Alliance | Undecided | GA88 |
| Kelly Meyers | Iowa State Sheriffs' & Deputies' Association | Undecided | GA88 |
| Susan Cameron Daemen | Iowa State Sheriffs' & Deputies' Association | Undecided | GA88 |
| Jim Obradovich | Iowa Trappers Association | Undecided | GA88 |
| Doug Struyk | Iowa Veterinary Medical Association | Opposing | GA88 |
| Doug Struyk | Iowa Veterinary Medical Association | Undecided | GA88 |
| Jennifer Dorman | Iowa Veterinary Medical Association | Opposing | GA88 |
| Jennifer Dorman | Iowa Veterinary Medical Association | Undecided | GA88 |
| Jim Carney | Iowa Veterinary Medical Association | Opposing | GA88 |
| Jim Carney | Iowa Veterinary Medical Association | Undecided | GA88 |
| Steven Exline | Samoyed Club of Iowa | Supporting | GA88 |
| Emily Piper | Stray Dog Policy, Inc. | Undecided | GA88 |
| Preston Moore | The Humane Society of the United States | Undecided | GA88 |