| Jeff Smith | Agribusiness Association of Iowa | Opposing | GA90 |
| Maggie Smith-Fitzgerald | Agribusiness Association of Iowa | Opposing | GA90 |
| Matt Fitzgerald | Agribusiness Association of Iowa | Opposing | GA90 |
| Brad Epperly | Bayer U.S. LLC | Opposing | GA90 |
| Dustin Miller | Bayer U.S. LLC | Opposing | GA90 |
| Mark Joyce | Corteva Agriscience | Opposing | GA90 |
| John Cacciatore | Farm Credit Service of America | Undecided | GA90 |
| Justin Hupfer | Farm Credit Service of America | Undecided | GA90 |
| Kellie Paschke | Iowa Cattlemen's Association | Opposing | GA90 |
| Kelly Meyers | Iowa Cattlemen's Association | Opposing | GA90 |
| Troy Skinner | Iowa Cattlemen's Association | Opposing | GA90 |
| Jeff Smith | Iowa Corn Growers Association | Opposing | GA90 |
| Maggie Smith-Fitzgerald | Iowa Corn Growers Association | Opposing | GA90 |
| Matt Fitzgerald | Iowa Corn Growers Association | Opposing | GA90 |
| Mindy Poldberg | Iowa Corn Growers Association | Opposing | GA90 |
| Haley Hook | Iowa Department of Agriculture & Land Stewardship | Opposing | GA90 |
| Haley Hook | Iowa Department of Agriculture & Land Stewardship | Undecided | GA90 |
| Bobby Martens | Iowa Institute for Cooperatives | Opposing | GA90 |
| Bobby Martens | Iowa Institute for Cooperatives | Undecided | GA90 |
| Mike St. Clair | Iowa Institute for Cooperatives | Opposing | GA90 |
| Mike St. Clair | Iowa Institute for Cooperatives | Undecided | GA90 |
| Rebecca Boyer | Iowa Institute for Cooperatives | Opposing | GA90 |
| Rebecca Boyer | Iowa Institute for Cooperatives | Undecided | GA90 |
| Ben Nuelle | Iowa Pork Producers Association | Opposing | GA90 |
| Jeff Smith | Iowa Pork Producers Association | Opposing | GA90 |
| Maggie Smith-Fitzgerald | Iowa Pork Producers Association | Opposing | GA90 |
| Matt Fitzgerald | Iowa Pork Producers Association | Opposing | GA90 |
| Nathan Hohnstein | Iowa Renewable Fuels Association (IRF) | Undecided | GA90 |
| Doug Struyk | Iowa Soybean Association | Opposing | GA90 |
| Jennifer Dorman | Iowa Soybean Association | Opposing | GA90 |
| Jim Carney | Iowa Soybean Association | Opposing | GA90 |
| Jill Altringer | Iowa Turkey Federation | Opposing | GA90 |
| Jill Altringer | North Central Poultry Association | Opposing | GA90 |
| Mona Bond | Syngenta | Opposing | GA90 |
| Steven Schoenebaum | Syngenta Crop Protection | Opposing | GA90 |