| David Scott | American Petroleum Institute | Opposing | GA84 |
| Daniel Weiser | Annett Holdings | Undecided | GA84 |
| Robert Weiser | Annett Holdings | Undecided | GA84 |
| Frank Chiodo | Associated General Contractors of IA | Opposing | GA84 |
| Ned Chiodo | Associated General Contractors of IA | Opposing | GA84 |
| Scott Newhard | Associated General Contractors of IA | Opposing | GA84 |
| Brad Epperly | BNSF Railway Co. | Undecided | GA84 |
| Keith Luchtel | BNSF Railway Co. | Undecided | GA84 |
| Paula Dierenfeld | BNSF Railway Co. | Undecided | GA84 |
| Scott Sundstrom | BNSF Railway Co. | Undecided | GA84 |
| Daniel Weiser | CRST International | Undecided | GA84 |
| Robert Weiser | CRST International | Undecided | GA84 |
| Jim Obradovich | Canadian Pacific Railway | Undecided | GA84 |
| Robert Mulqueen | Canadian Pacific Railway | Undecided | GA84 |
| Brice Oakley | Casey's General Stores | Opposing | GA84 |
| Don Avenson | Casey's General Stores | Opposing | GA84 |
| Tom Cope | Casey's General Stores | Opposing | GA84 |
| F. Thornton | Central IA Power Cooperative (CIPCO) | Undecided | GA84 |
| Stephen Roberts | Central IA Power Cooperative (CIPCO) | Undecided | GA84 |
| Brad Epperly | Deere & Company | Undecided | GA84 |
| Jason Francque | Deere & Company | Undecided | GA84 |
| Keith Luchtel | Deere & Company | Undecided | GA84 |
| Paula Dierenfeld | Deere & Company | Undecided | GA84 |
| Scott Sundstrom | Deere & Company | Undecided | GA84 |
| Jay Byers | Greater Des Moines Partnership | Undecided | GA84 |
| Bill Wimmer | Hy-Vee, Inc. | Undecided | GA84 |
| Craig Schoenfeld | Hy-Vee, Inc. | Undecided | GA84 |
| John Gilliland | IA. Assn. of Business and Industry (ABI) | Opposing | GA84 |
| Michael Ralston | IA. Assn. of Business and Industry (ABI) | Opposing | GA84 |
| Nicole Crain | IA. Assn. of Business and Industry (ABI) | Opposing | GA84 |
| Brad Epperly | IA. Assn. of Electric Cooperatives | Undecided | GA84 |
| Keith Luchtel | IA. Assn. of Electric Cooperatives | Undecided | GA84 |
| Paula Dierenfeld | IA. Assn. of Electric Cooperatives | Undecided | GA84 |
| Scott Sundstrom | IA. Assn. of Electric Cooperatives | Undecided | GA84 |
| Tim Coonan | IA. Assn. of Electric Cooperatives | Undecided | GA84 |
| Emily Piper | IA. Assn. of School Boards | Opposing | GA84 |
| Mary Gannon | IA. Assn. of School Boards | Opposing | GA84 |
| Brad Epperly | IA. Automobile Dealers Assn. | Undecided | GA84 |
| Keith Luchtel | IA. Automobile Dealers Assn. | Undecided | GA84 |
| Paula Dierenfeld | IA. Automobile Dealers Assn. | Undecided | GA84 |
| Scott Sundstrom | IA. Automobile Dealers Assn. | Undecided | GA84 |
| Gary Dickey | IA. Biodiesel Board | Undecided | GA84 |
| Randy Olson | IA. Biodiesel Board | Undecided | GA84 |
| Neila Seaman | IA. Chapter of Sierra Club | Undecided | GA84 |
| Jerry Fitzgerald | IA. Corn Growers Assn.(ICG) | Undecided | GA84 |
| Maggie Smith-Fitzgerald | IA. Corn Growers Assn.(ICG) | Undecided | GA84 |
| Mark Joyce | IA. Corn Growers Assn.(ICG) | Undecided | GA84 |
| Mindy Poldberg | IA. Corn Growers Assn.(ICG) | Undecided | GA84 |
| Jen Schulte | IA. Farmers Union | Supporting | GA84 |
| Kent Hartwig | IA. Farmers Union | Supporting | GA84 |
| Kyle Frette | IA. Farmers Union | Supporting | GA84 |
| Threase Harms | IA. Farmers Union | Supporting | GA84 |
| Brad Epperly | IA. Grocery Industry Assn. | Opposing | GA84 |
| Keith Luchtel | IA. Grocery Industry Assn. | Opposing | GA84 |
| Paula Dierenfeld | IA. Grocery Industry Assn. | Opposing | GA84 |
| Scott Sundstrom | IA. Grocery Industry Assn. | Opposing | GA84 |
| Alan Kemp | IA. League of Cities | Undecided | GA84 |
| Jessica Hyland | IA. League of Cities | Undecided | GA84 |
| Julie Smith | IA. League of Cities | Undecided | GA84 |
| Larry Pope | IA. League of Cities | Undecided | GA84 |
| Megan Peiffer | IA. League of Cities | Undecided | GA84 |
| David Scott | IA. Motor Truck Assn. | Opposing | GA84 |
| Jim Obradovich | IA. Public Airports Assn. | Undecided | GA84 |
| Mike Heller | IA. Renewable Fuels Assn. (IRF) | Supporting | GA84 |
| Montgomery Shaw | IA. Renewable Fuels Assn. (IRF) | Supporting | GA84 |
| Paula Feltner | IA. Renewable Fuels Assn. (IRF) | Supporting | GA84 |
| Mike Heller | IA. Retail Federation | Undecided | GA84 |
| Paula Feltner | IA. Retail Federation | Undecided | GA84 |
| Emily Piper | IA. Rural Water Assn. | Opposing | GA84 |
| Jim Obradovich | IA. Shortline and Regional Railroad Assn. | Undecided | GA84 |
| Larry Blixt | KWIK Trip, Inc. | Opposing | GA84 |
| Brice Oakley | Koch Companies Public Sector, LLC and Affiliates | Opposing | GA84 |
| Don Avenson | Koch Companies Public Sector, LLC and Affiliates | Opposing | GA84 |
| Tom Cope | Koch Companies Public Sector, LLC and Affiliates | Opposing | GA84 |
| John Pederson | Kum and Go | Opposing | GA84 |
| Matt Eide | Kum and Go | Opposing | GA84 |
| Mike Heller | Petroleum Marketers Management Insurance Company (PMMIC) | Undecided | GA84 |
| Paula Feltner | Petroleum Marketers Management Insurance Company (PMMIC) | Undecided | GA84 |
| Dawn Carlson | Petroleum Marketers and Convenience Stores of IA | Opposing | GA84 |
| Kellie Paschke | Petroleum Marketers and Convenience Stores of IA | Opposing | GA84 |
| Mona Bond | Petroleum Marketers and Convenience Stores of IA | Opposing | GA84 |
| Troy Skinner | Petroleum Marketers and Convenience Stores of IA | Opposing | GA84 |
| Scott Hedderich | Renewable Energy Group (REG) | Undecided | GA84 |
| Margaret Buckton | Urban Education Network of IA | Undecided | GA84 |