| Jeff Smith | Agribusiness Association of Iowa | Opposing | GA87 |
| Jerry Fitzgerald | Agribusiness Association of Iowa | Opposing | GA87 |
| Jonathan DeReus | Agribusiness Association of Iowa | Opposing | GA87 |
| Maggie Smith-Fitzgerald | Agribusiness Association of Iowa | Opposing | GA87 |
| Matt Fitzgerald | Agribusiness Association of Iowa | Opposing | GA87 |
| David Scott | American Petroleum Institute | Supporting | GA87 |
| Christopher Riley | Archer Daniels Midland Company | Opposing | GA87 |
| Brice Oakley | Casey's General Stores | Undecided | GA87 |
| Don Avenson | Casey's General Stores | Undecided | GA87 |
| Tom Cope | Casey's General Stores | Undecided | GA87 |
| Stacey Pellett | Deere & Company | Undecided | GA87 |
| Kellie Paschke | FUELIowa | Supporting | GA87 |
| Troy Skinner | FUELIowa | Supporting | GA87 |
| Angela Davis | Hy-Vee, Inc. | Undecided | GA87 |
| Bill Wimmer | Hy-Vee, Inc. | Undecided | GA87 |
| Doug Struyk | Iowa Biodiesel Board | Undecided | GA87 |
| Jim Carney | Iowa Biodiesel Board | Undecided | GA87 |
| Shannon Henson | Iowa Biodiesel Board | Undecided | GA87 |
| Neila Seaman | Iowa Chapter of Sierra Club | Undecided | GA87 |
| Jeff Smith | Iowa Corn Growers Association(ICG) | Opposing | GA87 |
| Jerry Fitzgerald | Iowa Corn Growers Association(ICG) | Opposing | GA87 |
| Maggie Smith-Fitzgerald | Iowa Corn Growers Association(ICG) | Opposing | GA87 |
| Matt Fitzgerald | Iowa Corn Growers Association(ICG) | Opposing | GA87 |
| Mindy Poldberg | Iowa Corn Growers Association(ICG) | Opposing | GA87 |
| Matt Gronewald | Iowa Dept. of Agriculture | Opposing | GA87 |
| Brad Epperly | Iowa Grocery Industry Association | Undecided | GA87 |
| Dustin Miller | Iowa Grocery Industry Association | Undecided | GA87 |
| Paige Thorson | Iowa Grocery Industry Association | Undecided | GA87 |
| Paula Dierenfeld | Iowa Grocery Industry Association | Undecided | GA87 |
| Grant Menke | Iowa Renewable Fuels Association (IRF) | Opposing | GA87 |
| Mike Heller | Iowa Renewable Fuels Association (IRF) | Opposing | GA87 |
| Paula Feltner | Iowa Renewable Fuels Association (IRF) | Opposing | GA87 |
| Carol Balvanz | Iowa Soybean Association | Undecided | GA87 |
| Jill Altringer | Iowa Soybean Association | Undecided | GA87 |
| John Pederson | Kum and Go, L.C. | Opposing | GA87 |
| Kate Walton | Kum and Go, L.C. | Opposing | GA87 |
| Matt Eide | Kum and Go, L.C. | Opposing | GA87 |
| John Pederson | POET, LLC | Opposing | GA87 |
| Matt Eide | POET, LLC | Opposing | GA87 |
| Bob Rafferty | Truckstops of Iowa | Undecided | GA87 |