| Jeff Smith | Agribusiness Association of Iowa | Undecided | GA89 |
| Jerry Fitzgerald | Agribusiness Association of Iowa | Undecided | GA89 |
| Maggie Smith-Fitzgerald | Agribusiness Association of Iowa | Undecided | GA89 |
| Matt Fitzgerald | Agribusiness Association of Iowa | Undecided | GA89 |
| Brad Epperly | Bayer U.S. LLC | Undecided | GA89 |
| Dustin Miller | Bayer U.S. LLC | Undecided | GA89 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA89 |
| Mark Joyce | Corteva Agriscience | Supporting | GA89 |
| Robert Haus | Corteva Agriscience | Supporting | GA89 |
| Brad Epperly | Helena Agri-Enterprises, LLC | Undecided | GA89 |
| Dustin Miller | Helena Agri-Enterprises, LLC | Undecided | GA89 |
| Kellie Paschke | Iowa Cattlemen's Association | Undecided | GA89 |
| Kelly Meyers | Iowa Cattlemen's Association | Undecided | GA89 |
| Logan Murray | Iowa Cattlemen's Association | Undecided | GA89 |
| Troy Skinner | Iowa Cattlemen's Association | Undecided | GA89 |
| Jeff Smith | Iowa Corn Growers Association | Undecided | GA89 |
| Jerry Fitzgerald | Iowa Corn Growers Association | Undecided | GA89 |
| Maggie Smith-Fitzgerald | Iowa Corn Growers Association | Undecided | GA89 |
| Matt Fitzgerald | Iowa Corn Growers Association | Undecided | GA89 |
| Mindy Poldberg | Iowa Corn Growers Association | Undecided | GA89 |
| Colin Tadlock | Iowa Department of Agriculture & Land Stewardship | Supporting | GA89 |
| Angela Davis | Iowa Environmental Council | Undecided | GA89 |
| Hannah McDowell | Iowa Farmers Union | Undecided | GA89 |
| Nick Laning | Iowa Farmers Union | Undecided | GA89 |
| Threase Harms | Iowa Farmers Union | Undecided | GA89 |
| Steven Schoenebaum | Syngenta Crop Protection | Undecided | GA89 |