| Jeff Smith | Agribusiness Association of Iowa | Supporting | GA90 |
| Maggie Smith-Fitzgerald | Agribusiness Association of Iowa | Supporting | GA90 |
| Matt Fitzgerald | Agribusiness Association of Iowa | Supporting | GA90 |
| David McDonald | Cedar Rapids Kennel Association | Undecided | GA90 |
| David McDonald | Cedar Rapids Kennel Association | Withdrawn | GA90 |
| David McDonald | Cedar Rapids Kennel Association | Opposing | GA90 |
| Christopher Rants | Center for Rural Affairs | Supporting | GA90 |
| John Cacciatore | Center for Rural Affairs | Supporting | GA90 |
| Johnathan Hladik | Center for Rural Affairs | Supporting | GA90 |
| Kate Hansen | Center for Rural Affairs | Supporting | GA90 |
| Jefferson Fink | Conservation Districts of Iowa | Undecided | GA90 |
| Jim Obradovich | Conservation Districts of Iowa | Undecided | GA90 |
| Dane Schumann | Dog Daycare Coalition | Undecided | GA90 |
| John Hirl | Ducks Unlimited, Inc. | Undecided | GA90 |
| Marc Beltrame | Ducks Unlimited, Inc. | Undecided | GA90 |
| John Hirl | FUELIowa (PMCI) | Undecided | GA90 |
| Marc Beltrame | FUELIowa (PMCI) | Undecided | GA90 |
| Doug Struyk | Iowa Biodiesel Board | Supporting | GA90 |
| Jennifer Dorman | Iowa Biodiesel Board | Supporting | GA90 |
| Jim Carney | Iowa Biodiesel Board | Supporting | GA90 |
| Kellie Paschke | Iowa Cattlemen's Association | Undecided | GA90 |
| Kelly Meyers | Iowa Cattlemen's Association | Undecided | GA90 |
| Troy Skinner | Iowa Cattlemen's Association | Undecided | GA90 |
| Haley Hook | Iowa Department of Agriculture & Land Stewardship | Supporting | GA90 |
| Chelsea Hoye | Iowa Environmental Council | Undecided | GA90 |
| Threase Harms | Iowa Environmental Council | Undecided | GA90 |
| Chelsea Hoye | Iowa Farmers Union | Undecided | GA90 |
| Threase Harms | Iowa Farmers Union | Undecided | GA90 |
| Jill Altringer | Iowa Federation of Animal Owners | Undecided | GA90 |
| Bobby Martens | Iowa Institute for Cooperatives | Supporting | GA90 |
| Mike St. Clair | Iowa Institute for Cooperatives | Supporting | GA90 |
| Rebecca Boyer | Iowa Institute for Cooperatives | Supporting | GA90 |
| Jill Altringer | Iowa State Dairy Association | Undecided | GA90 |
| Jill Altringer | Iowa Turkey Federation | Undecided | GA90 |
| Geri Huser | Iowa Utilities Commission | Undecided | GA90 |
| Louis Vander Streek | Iowa Utilities Commission | Undecided | GA90 |
| Maison Bleam | Iowa Utilities Commission | Undecided | GA90 |
| Doug Struyk | Iowa Veterinary Medical Association | Undecided | GA90 |
| Jennifer Dorman | Iowa Veterinary Medical Association | Undecided | GA90 |
| Jim Carney | Iowa Veterinary Medical Association | Undecided | GA90 |
| Dane Schumann | Izaak Walton League - Iowa Division | Undecided | GA90 |
| Kellie Paschke | Landus Cooperative | Undecided | GA90 |
| Kelly Meyers | Landus Cooperative | Undecided | GA90 |
| Troy Skinner | Landus Cooperative | Undecided | GA90 |
| Jill Altringer | North Central Poultry Association | Undecided | GA90 |
| Kate Walton | POET, LLC | Undecided | GA90 |
| Madeleine Bradley | POET, LLC | Undecided | GA90 |
| Matt Eide | POET, LLC | Undecided | GA90 |
| Angela Caulk | The Humane Society of the United States | Undecided | GA90 |
| Kole Pederson | The Humane Society of the United States | Undecided | GA90 |
| Logan Murray | The Humane Society of the United States | Undecided | GA90 |
| Noah Tabor | The Humane Society of the United States | Undecided | GA90 |
| Craig Schoenfeld | Valero Energy Corporation | Undecided | GA90 |