| Jeff Smith | Agribusiness Association of Iowa | Supporting | GA91 |
| Maggie Smith-Fitzgerald | Agribusiness Association of Iowa | Supporting | GA91 |
| Matt Fitzgerald | Agribusiness Association of Iowa | Supporting | GA91 |
| Scott Newhard | Associated General Contractors of Iowa | Supporting | GA91 |
| Brad Epperly | BNSF Railway Co. | Opposing | GA91 |
| Casey Nickel | BNSF Railway Co. | Opposing | GA91 |
| Dustin Miller | BNSF Railway Co. | Opposing | GA91 |
| Ross Grooters | Brotherhood of Locomotive Engineers and Trainmen | Undecided | GA91 |
| Jake Swanson | Iowa Cattlemen's Association | Supporting | GA91 |
| Kelli Wicks | Iowa Cattlemen's Association | Supporting | GA91 |
| Ian Latham | Iowa Corn Growers Association | Supporting | GA91 |
| Jeff Smith | Iowa Corn Growers Association | Supporting | GA91 |
| Maggie Smith-Fitzgerald | Iowa Corn Growers Association | Supporting | GA91 |
| Matt Fitzgerald | Iowa Corn Growers Association | Supporting | GA91 |
| Nathan Hohnstein | Iowa Corn Growers Association | Supporting | GA91 |
| Haley Hook | Iowa Department of Agriculture & Land Stewardship | Supporting | GA91 |
| Catherine Pollard | Iowa Farmers Union | Undecided | GA91 |
| Threase Harms | Iowa Farmers Union | Undecided | GA91 |
| Megan Carlson | Iowa Institute for Cooperatives | Supporting | GA91 |
| Blake Grolmus | Iowa Motor Truck Association | Undecided | GA91 |
| David Scott | Iowa Motor Truck Association | Undecided | GA91 |
| Clara Wulfsen | Iowa Soybean Association | Supporting | GA91 |
| Doug Struyk | Iowa Soybean Association | Supporting | GA91 |
| Jennifer Dorman | Iowa Soybean Association | Supporting | GA91 |
| Jim Carney | Iowa Soybean Association | Supporting | GA91 |
| Katie Hall | Iowa Soybean Association | Supporting | GA91 |
| Matt Herman | Iowa Soybean Association | Supporting | GA91 |
| Megan Decker | Iowa Soybean Association | Supporting | GA91 |
| Chris Smith | SMART-Transportation Division | Undecided | GA91 |
| Larry Lloyd | Soo Line Railroad Company d/b/a Canadian Pacific Kansas City (CPKC) | Opposing | GA91 |
| Michael Triplett | Union Pacific Railroad | Opposing | GA91 |