| Cal Hultman | Alliance of Automobile Manufacturers | Opposing | GA85 |
| Michael Triplett | Alliance of Automobile Manufacturers | Opposing | GA85 |
| David Scott | American Petroleum Institute | Opposing | GA85 |
| Christopher Riley | Archer Daniels Midland Company | Undecided | GA85 |
| Jim Obradovich | Butler Logistics Park | Undecided | GA85 |
| Don Avenson | Casey's General Stores | Supporting | GA85 |
| Mike St. Clair | General Motors LLC | Opposing | GA85 |
| tom fey | General Motors LLC | Opposing | GA85 |
| Angela Davis | Hy-Vee, Inc. | Undecided | GA85 |
| Bill Wimmer | Hy-Vee, Inc. | Undecided | GA85 |
| Brad Epperly | Iowa Automobile Dealers Association | Undecided | GA85 |
| Paula Dierenfeld | Iowa Automobile Dealers Association | Undecided | GA85 |
| Scott Sundstrom | Iowa Automobile Dealers Association | Undecided | GA85 |
| Gary Dickey | Iowa Biodiesel Board | Supporting | GA85 |
| Gary Dickey | Iowa Biodiesel Board | Undecided | GA85 |
| Randy Olson | Iowa Biodiesel Board | Supporting | 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 |
| Amber Markham | Iowa Dept. of Public Safety | Undecided | GA85 |
| David Scott | Iowa Engineering Society | Opposing | GA85 |
| Brad Epperly | Iowa Grocery Industry Association | Supporting | GA85 |
| Paula Dierenfeld | Iowa Grocery Industry Association | Supporting | GA85 |
| Scott Sundstrom | Iowa Grocery Industry Association | Supporting | GA85 |
| Drue Sander | Iowa Institute for Cooperatives | Undecided | GA85 |
| Kayla Lyon | Iowa Institute for Cooperatives | Undecided | GA85 |
| David Scott | Iowa Motor Truck Association | Opposing | GA85 |
| Jim Obradovich | Iowa Public Airports Association | Undecided | GA85 |
| Mike Heller | Iowa Renewable Fuels Association (IRF) | Opposing | GA85 |
| Montgomery Shaw | Iowa Renewable Fuels Association (IRF) | Opposing | GA85 |
| Paula Feltner | Iowa Renewable Fuels Association (IRF) | Opposing | GA85 |
| Jim Obradovich | Iowa Shortline and Regional Railroad Association | Undecided | GA85 |
| Larry Blixt | KWIK Trip, Inc. | Supporting | GA85 |
| Tom Cope | Koch Companies Public Sector, LLC and Affiliates | Opposing | GA85 |
| Tom Cope | Koch Companies Public Sector, LLC and Affiliates | Supporting | GA85 |
| Jason Bassett | Kum and Go | Supporting | GA85 |
| John Pederson | Kum and Go | Supporting | GA85 |
| Matt Eide | Kum and Go | Supporting | GA85 |
| John Cacciatore | Magellan Midstream Partners | Undecided | GA85 |
| Jon Murphy | Magellan Midstream Partners | Undecided | GA85 |
| Justin Hupfer | Magellan Midstream Partners | Undecided | GA85 |
| Mary Earnhardt | Magellan Midstream Partners | Undecided | GA85 |
| Jim Obradovich | Manly Logistics Park | Undecided | GA85 |
| Dawn Carlson | Petroleum Marketers and Convenience Stores of Iowa | Supporting | GA85 |
| Kellie Paschke | Petroleum Marketers and Convenience Stores of Iowa | Supporting | GA85 |
| Lindsay Phillips | Petroleum Marketers and Convenience Stores of Iowa | Supporting | GA85 |
| Troy Skinner | Petroleum Marketers and Convenience Stores of Iowa | Supporting | GA85 |
| Scott Hedderich | Renewable Energy Group (REG) | Undecided | GA85 |
| Bob Rafferty | Truckstops of Iowa | Supporting | GA85 |