| Larry Murphy | Agribusiness Assn. of IA | Undecided | GA83 |
| Linda Kinman | Des Moines Water Works | Opposing | GA83 |
| Linda Kinman | IA. Assn. of Water Agencies | Opposing | GA83 |
| Neila Seaman | IA. Chapter of Sierra Club | Opposing | GA83 |
| Adam Mason | IA. Citizens for Community Improvement | Opposing | GA83 |
| Natalie Snyders | IA. Citizens for Community Improvement | Opposing | GA83 |
| Sharon Tahtinen | IA. Dept. of Natural Resources | Opposing | GA83 |
| Jim Obradovich | IA. Environmental Council | Opposing | GA83 |
| Leland Searles | IA. Environmental Council | Opposing | GA83 |
| Don Petersen | IA. Farm Bureau Federation | Supporting | GA83 |
| Joe Johnson | IA. Farm Bureau Federation | Supporting | GA83 |
| Mark Salvador | IA. Farm Bureau Federation | Supporting | GA83 |
| Jen Schulte | IA. Farmers Union | Opposing | GA83 |
| Kent Hartwig | IA. Farmers Union | Opposing | GA83 |
| Kyle Frette | IA. Farmers Union | Opposing | GA83 |
| Threase Harms | IA. Farmers Union | Opposing | GA83 |
| Betty Lord-Dinan | IA. Nurses Assn. | Undecided | GA83 |
| Linda Goeldner | IA. Nurses Assn. | Undecided | GA83 |
| Eldon McAfee | IA. Pork Producers Assn. (IPP) | Supporting | GA83 |
| Jeffrey Schnell | IA. Pork Producers Assn. (IPP) | Supporting | GA83 |
| Jerry Fitzgerald | IA. Pork Producers Assn. (IPP) | Undecided | GA83 |
| Maggie Smith-Fitzgerald | IA. Pork Producers Assn. (IPP) | Undecided | GA83 |
| Mark Joyce | IA. Pork Producers Assn. (IPP) | Undecided | GA83 |
| Hanna DeGroot | IA. State Assn. of Counties | Undecided | GA83 |
| Linda Hinton | IA. State Assn. of Counties | Undecided | GA83 |
| MaryBeth Mellick | IA. State Assn. of Counties | Undecided | GA83 |
| Nathan Bonnett | IA. State Assn. of Counties | Undecided | GA83 |
| William Peterson | IA. State Assn. of Counties | Undecided | GA83 |
| George Appleby | IA. State Bar Assn. | Undecided | GA83 |
| Jennifer Tyler | IA. State Bar Assn. | Undecided | GA83 |
| Jim Carney | IA. State Bar Assn. | Undecided | GA83 |
| Jessica Bloomberg | IA. State Dairy Assn. | Supporting | GA83 |
| George Appleby | IA. Veterinary Medical Assn. | Undecided | GA83 |
| Jennifer Tyler | IA. Veterinary Medical Assn. | Undecided | GA83 |
| Jim Carney | IA. Veterinary Medical Assn. | Undecided | GA83 |
| Roy Overton | Izaak Walton League - Iowa Division | Opposing | GA83 |