| Steven Lukan | Black Hills Energy | Supporting | GA91 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA91 |
| Jennifer Breon | Food & Water Watch | Opposing | GA91 |
| Kent Hartwig | Gevo | Undecided | GA91 |
| Jake Swanson | Iowa Cattlemen's Association | Supporting | GA91 |
| Kelli Wicks | Iowa Cattlemen's Association | Supporting | GA91 |
| Jessica Mazour | Iowa Chapter of Sierra Club | Opposing | GA91 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Opposing | GA91 |
| Stacie Herridge | Iowa County Recorders Association | Undecided | GA91 |
| Todd Coffelt | Iowa Dept. of Natural Resources | Undecided | GA91 |
| Ben Nuelle | Iowa Pork Producers Association | Supporting | GA91 |
| Jeff Smith | Iowa Pork Producers Association | Supporting | GA91 |
| Maggie Smith-Fitzgerald | Iowa Pork Producers Association | Supporting | GA91 |
| Matt Fitzgerald | Iowa Pork Producers Association | Supporting | GA91 |
| Emily Piper | Iowa Rural Water Association | Undecided | GA91 |
| Logan Shine | Iowa Rural Water Association | Undecided | GA91 |
| Jefferson Fink | Iowa Society of Solid Waste Operations (ISOSWO) | Undecided | GA91 |
| Jim Obradovich | Iowa Society of Solid Waste Operations (ISOSWO) | Undecided | GA91 |
| Victoria Sinclair | Iowa Society of Solid Waste Operations (ISOSWO) | Undecided | GA91 |
| Eric Goranson | Iowa State Dairy Association | Supporting | GA91 |
| Jill Altringer | Iowa State Dairy Association | Supporting | GA91 |
| Gary Grant | Linn County Board of Supervisors | Undecided | GA91 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA91 |
| Matt McKinney | Roeslein Renewables | Supporting | GA91 |
| RG Schwarm | Roeslein Renewables | Supporting | GA91 |
| Brad Epperly | Smithfield Foods, Inc. | Undecided | GA91 |
| Casey Nickel | Smithfield Foods, Inc. | Undecided | GA91 |
| Dustin Miller | Smithfield Foods, Inc. | Undecided | GA91 |
| Gary Grant | Urban County Coalition | Undecided | GA91 |
| Larry Murphy | Urban County Coalition | Undecided | GA91 |