| Jim Obradovich | Conservation Districts of Iowa | Undecided | GA85 |
| Steven Schoenebaum | Dow AgroSciences | Undecided | GA85 |
| Jennifer Kingland | Iowa Association of Realtors | Undecided | GA85 |
| Robert Hartwig | Iowa Bankers Association | Undecided | GA85 |
| Sharon Presnall | Iowa Bankers Association | Undecided | GA85 |
| Justine Stevenson | Iowa Cattlemen's Association | Undecided | GA85 |
| Kellie Paschke | Iowa Cattlemen's Association | Undecided | GA85 |
| Lindsay Phillips | Iowa Cattlemen's Association | Undecided | GA85 |
| Troy Skinner | Iowa Cattlemen's Association | Undecided | GA85 |
| Mike Heller | Iowa Conservation Alliance | Undecided | GA85 |
| Paula Feltner | Iowa Conservation Alliance | Undecided | GA85 |
| Jerry Fitzgerald | Iowa Corn Growers Association(ICG) | Undecided | GA85 |
| Maggie Smith-Fitzgerald | Iowa Corn Growers Association(ICG) | Undecided | GA85 |
| Mark Joyce | Iowa Corn Growers Association(ICG) | Undecided | GA85 |
| Mindy Poldberg | Iowa Corn Growers Association(ICG) | Undecided | GA85 |
| Matt Gronewald | Iowa Dept. of Agriculture | Undecided | GA85 |
| Diane Ford | Iowa Dept. of Natural Resources | Undecided | GA85 |
| Jim Obradovich | Iowa Environmental Council | Undecided | GA85 |
| Robert Mulqueen | Iowa Environmental Council | Undecided | GA85 |
| Don Petersen | Iowa Farm Bureau Federation | Undecided | GA85 |
| Don Petersen | Iowa Farm Bureau Federation | Supporting | GA85 |
| Marty Schwager | Iowa Farm Bureau Federation | Undecided | GA85 |
| Marty Schwager | Iowa Farm Bureau Federation | Supporting | GA85 |
| Matthew Steinfeldt | Iowa Farm Bureau Federation | Undecided | GA85 |
| Matthew Steinfeldt | Iowa Farm Bureau Federation | Supporting | GA85 |
| Dane Schumann | Iowa Farmers Union | Undecided | GA85 |
| Kent Hartwig | Iowa Farmers Union | Undecided | GA85 |
| Threase Harms | Iowa Farmers Union | Undecided | GA85 |
| Don Brazelton | Iowa Natural Heritage Foundation | Undecided | GA85 |
| Jerry Fitzgerald | Iowa Public Transit Association (IPT) | Undecided | GA85 |
| Maggie Smith-Fitzgerald | Iowa Public Transit Association (IPT) | Undecided | GA85 |
| Mark Joyce | Iowa Public Transit Association (IPT) | Undecided | GA85 |
| Carol Balvanz | Iowa Soybean Association | Undecided | GA85 |
| Jill Altringer | Iowa Soybean Association | Undecided | GA85 |
| Jill Altringer | Iowa Turkey Federation | Undecided | GA85 |
| Steven Schoenebaum | Smithfield Foods, Inc. | Undecided | GA85 |
| Steven Schoenebaum | Syngenta Crop Protection | Undecided | GA85 |