| Bernard Lettington | Animal Rescue League Iowa, Inc. | Supporting | GA91 |
| David Peck | Boehringer Ingelheim Pharmaceuticals, Inc. | Opposing | GA91 |
| Marc Beltrame | Boehringer Ingelheim Pharmaceuticals, Inc. | Opposing | GA91 |
| Angela Caulk | Humane World for Animals | Supporting | GA91 |
| Preston Moore | Humane World for Animals | Supporting | GA91 |
| David Adelman | Iowa Biotechnology Association | Opposing | GA91 |
| Frank Chiodo | Iowa Biotechnology Association | Opposing | GA91 |
| Matt Hinch | Iowa Biotechnology Association | Opposing | GA91 |
| Paige Thorson | Iowa Biotechnology Association | Opposing | GA91 |
| Sara Allen | Iowa Biotechnology Association | Opposing | GA91 |
| Carolann Jensen | Iowa Board of Regents | Undecided | GA91 |
| Jennifer Harbison | Iowa Board of Regents | Undecided | GA91 |
| Jillian Carlson | Iowa Board of Regents | Undecided | GA91 |
| Keith Saunders | Iowa Board of Regents | Undecided | GA91 |
| Jake Swanson | Iowa Cattlemen's Association | Opposing | GA91 |
| Kelli Wicks | Iowa Cattlemen's Association | Opposing | GA91 |
| Haley Hook | Iowa Department of Agriculture & Land Stewardship | Undecided | GA91 |
| Kate Walton | Iowa Medical Society | Undecided | GA91 |
| Madeleine Bradley | Iowa Medical Society | Undecided | GA91 |
| Matt Eide | Iowa Medical Society | Undecided | GA91 |
| Seth Brown | Iowa Medical Society | Undecided | GA91 |
| Ben Nuelle | Iowa Pork Producers Association | Opposing | GA91 |
| Jeff Smith | Iowa Pork Producers Association | Opposing | GA91 |
| Maggie Smith-Fitzgerald | Iowa Pork Producers Association | Opposing | GA91 |
| Matt Fitzgerald | Iowa Pork Producers Association | Opposing | GA91 |
| Clara Wulfsen | Iowa Veterinary Medical Association | Undecided | GA91 |
| Doug Struyk | Iowa Veterinary Medical Association | Undecided | GA91 |
| Jennifer Dorman | Iowa Veterinary Medical Association | Undecided | GA91 |
| Jim Carney | Iowa Veterinary Medical Association | Undecided | GA91 |