| Larry Murphy | Agribusiness Assn. of IA | Undecided | GA83 |
| Cal Hultman | Alliance of Automobile Manufacturers | Undecided | GA83 |
| Mary Hultman | Alliance of Automobile Manufacturers | Undecided | GA83 |
| Michael Triplett | Alliance of Automobile Manufacturers | Undecided | GA83 |
| Brad Epperly | BNSF Railway Co. | Undecided | GA83 |
| James West | BNSF Railway Co. | Undecided | GA83 |
| Keith Luchtel | BNSF Railway Co. | Undecided | GA83 |
| Paula Dierenfeld | BNSF Railway Co. | Undecided | GA83 |
| Scott Sundstrom | BNSF Railway Co. | Undecided | GA83 |
| Brad Epperly | Deere & Company | Undecided | GA83 |
| James West | Deere & Company | Undecided | GA83 |
| Keith Luchtel | Deere & Company | Undecided | GA83 |
| Paula Dierenfeld | Deere & Company | Undecided | GA83 |
| Scott Sundstrom | Deere & Company | Undecided | GA83 |
| Thomas Iles | Deere & Company | Undecided | GA83 |
| Jay Byers | Greater Des Moines Partnership | Undecided | GA83 |
| Bill Wimmer | Hy-Vee, Inc. | Opposing | GA83 |
| Craig Schoenfeld | Hy-Vee, Inc. | Opposing | GA83 |
| Emily Piper | IA. Assn. of School Boards | Undecided | GA83 |
| Margaret Buckton | IA. Assn. of School Boards | Undecided | GA83 |
| Mary Gannon | IA. Assn. of School Boards | Undecided | GA83 |
| Brad Epperly | IA. Automobile Dealers Assn. | Opposing | GA83 |
| Brad Epperly | IA. Automobile Dealers Assn. | Undecided | GA83 |
| James West | IA. Automobile Dealers Assn. | Opposing | GA83 |
| James West | IA. Automobile Dealers Assn. | Undecided | GA83 |
| Keith Luchtel | IA. Automobile Dealers Assn. | Opposing | GA83 |
| Keith Luchtel | IA. Automobile Dealers Assn. | Undecided | GA83 |
| Paula Dierenfeld | IA. Automobile Dealers Assn. | Opposing | GA83 |
| Paula Dierenfeld | IA. Automobile Dealers Assn. | Undecided | GA83 |
| Scott Sundstrom | IA. Automobile Dealers Assn. | Opposing | GA83 |
| Scott Sundstrom | IA. Automobile Dealers Assn. | Undecided | GA83 |
| Gary Dickey | IA. Biodiesel Board | Supporting | GA83 |
| Amber Markham | IA. Farm Bureau Federation | Undecided | GA83 |
| Joe Johnson | IA. Farm Bureau Federation | Undecided | GA83 |
| Mark Salvador | IA. Farm Bureau Federation | Undecided | GA83 |
| Janice Laue | IA. Federation of Labor, AFL-CIO | Undecided | GA83 |
| Ken Sagar | IA. Federation of Labor, AFL-CIO | Undecided | GA83 |
| Brad Epperly | IA. Grocery Industry Assn. | Opposing | GA83 |
| James West | IA. Grocery Industry Assn. | Opposing | GA83 |
| Keith Luchtel | IA. Grocery Industry Assn. | Opposing | GA83 |
| Paula Dierenfeld | IA. Grocery Industry Assn. | Opposing | GA83 |
| Scott Sundstrom | IA. Grocery Industry Assn. | Opposing | GA83 |
| Greg Boattenhamer | IA. Hospital Assn. | Undecided | GA83 |
| J. Norris | IA. Hospital Assn. | Undecided | GA83 |
| Shannon Strickler | IA. Hospital Assn. | Undecided | GA83 |
| Alan Kemp | IA. League of Cities | Undecided | GA83 |
| Jessica Hyland | IA. League of Cities | Undecided | GA83 |
| Julie Smith | IA. League of Cities | Undecided | GA83 |
| Larry Pope | IA. League of Cities | Undecided | GA83 |
| Megan Peiffer | IA. League of Cities | Undecided | GA83 |
| Brad Epperly | IA. Propane Gas Assn. | Undecided | GA83 |
| James West | IA. Propane Gas Assn. | Undecided | GA83 |
| Keith Luchtel | IA. Propane Gas Assn. | Undecided | GA83 |
| Paula Dierenfeld | IA. Propane Gas Assn. | Undecided | GA83 |
| Scott Sundstrom | IA. Propane Gas Assn. | Undecided | GA83 |
| Jim Obradovich | IA. Public Airports Assn. | Opposing | GA83 |
| Montgomery Shaw | IA. Renewable Fuels Assn. (IRF) | Supporting | GA83 |
| Emily Piper | IA. Rural Water Assn. | Undecided | GA83 |
| Jim Obradovich | IA. Shortline and Regional Railroad Assn. | Opposing | GA83 |
| Jim Obradovich | IA. Society of Solid Waste Operations (ISOSWO) | Opposing | GA83 |
| Jill Altringer | IA. Soybean Assn. | Undecided | GA83 |
| Larry Blixt | KWIK Trip, Inc. | Opposing | GA83 |
| Brice Oakley | Koch Companies Public Sector, LLC and Affiliates | Opposing | GA83 |
| Don Avenson | Koch Companies Public Sector, LLC and Affiliates | Opposing | GA83 |
| Tom Cope | Koch Companies Public Sector, LLC and Affiliates | Opposing | GA83 |
| John Pederson | Kum and Go | Opposing | GA83 |
| Matt Eide | Kum and Go | Opposing | GA83 |
| Robert Grayson | Office of Energy Independence | Undecided | GA83 |
| Mike Heller | Petroleum Marketers Management Insurance Company (PMMIC) | Undecided | GA83 |
| Paula Feltner | Petroleum Marketers Management Insurance Company (PMMIC) | Undecided | GA83 |
| Dawn Carlson | Petroleum Marketers and Convenience Stores of IA | Opposing | GA83 |
| Kellie Paschke | Petroleum Marketers and Convenience Stores of IA | Opposing | GA83 |
| Troy Skinner | Petroleum Marketers and Convenience Stores of IA | Opposing | GA83 |
| Nicole Woodroffe | Renewable Energy Group (REG) | Undecided | GA83 |
| Robert Weiser | Renewable Energy Group (REG) | Undecided | GA83 |
| Dr. Norman | School Administrators of IA | Undecided | GA83 |
| Cal Hultman | Union Pacific Railroad | Undecided | GA83 |
| Mary Hultman | Union Pacific Railroad | Undecided | GA83 |
| Michael Triplett | Union Pacific Railroad | Undecided | GA83 |