| Frank Chiodo | Associated General Contractors of IA | Undecided | GA84 |
| Ned Chiodo | Associated General Contractors of IA | Undecided | GA84 |
| Scott Newhard | Associated General Contractors of IA | Undecided | GA84 |
| Brice Oakley | Casey's General Stores | Undecided | GA84 |
| Don Avenson | Casey's General Stores | Undecided | GA84 |
| Tom Cope | Casey's General Stores | Undecided | GA84 |
| Brad Epperly | Greater Des Moines Partnership | Undecided | GA84 |
| Keith Luchtel | Greater Des Moines Partnership | Undecided | GA84 |
| Paula Dierenfeld | Greater Des Moines Partnership | Undecided | GA84 |
| Scott Sundstrom | Greater Des Moines Partnership | Undecided | GA84 |
| John Gilliland | IA. Assn. of Business and Industry (ABI) | Undecided | GA84 |
| Kevin Condon | IA. Assn. of Business and Industry (ABI) | Undecided | GA84 |
| Michael Ralston | IA. Assn. of Business and Industry (ABI) | Undecided | 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 |
| Brad Epperly | IA. Chamber Alliance | Undecided | GA84 |
| John Stineman | IA. Chamber Alliance | Undecided | GA84 |
| Keith Luchtel | IA. Chamber Alliance | Undecided | GA84 |
| Paula Dierenfeld | IA. Chamber Alliance | Undecided | GA84 |
| Scott Sundstrom | IA. Chamber Alliance | Undecided | GA84 |
| Jerry Fitzgerald | IA. Corn Growers Assn.(ICG) | Supporting | GA84 |
| Maggie Smith-Fitzgerald | IA. Corn Growers Assn.(ICG) | Supporting | GA84 |
| Mark Joyce | IA. Corn Growers Assn.(ICG) | Supporting | GA84 |
| Mindy Poldberg | IA. Corn Growers Assn.(ICG) | Supporting | GA84 |
| Elizabeth Baird | IA. Dept. of Transportation | Undecided | GA84 |
| John Pederson | IA. Ethanol Producers Assn. | Supporting | GA84 |
| Matt Eide | IA. Ethanol Producers Assn. | Supporting | GA84 |
| Don Petersen | IA. Farm Bureau Federation | Supporting | GA84 |
| Marty Schwager | IA. Farm Bureau Federation | Supporting | GA84 |
| Matthew Steinfeldt | IA. Farm Bureau Federation | Supporting | GA84 |
| Jen Schulte | IA. Farmers Union | Supporting | GA84 |
| Kent Hartwig | IA. Farmers Union | Supporting | GA84 |
| Threase Harms | IA. Farmers Union | Supporting | GA84 |
| Brad Epperly | IA. Grocery Industry Assn. | Undecided | GA84 |
| Keith Luchtel | IA. Grocery Industry Assn. | Undecided | GA84 |
| Paula Dierenfeld | IA. Grocery Industry Assn. | Undecided | GA84 |
| Scott Sundstrom | IA. Grocery Industry 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 |
| Hanna DeGroot | IA. State Assn. of Counties | Undecided | GA84 |
| Kristi Harshbarger | IA. State Assn. of Counties | Undecided | GA84 |
| Linda Hinton | IA. State Assn. of Counties | Undecided | GA84 |
| MaryBeth Mellick | IA. State Assn. of Counties | Undecided | GA84 |
| William Peterson | IA. State Assn. of Counties | Undecided | GA84 |
| Nicole Crain | IA. Taxpayers Assn. | Undecided | GA84 |
| John Pederson | Kum and Go | Supporting | GA84 |
| Matt Eide | Kum and Go | Supporting | GA84 |
| John Cacciatore | Magellan Midstream Partners | Undecided | GA84 |
| Justin Hupfer | Magellan Midstream Partners | Undecided | GA84 |
| Lynzey Tharp | Magellan Midstream Partners | Undecided | GA84 |
| Dawn Carlson | Petroleum Marketers and Convenience Stores of IA | Supporting | GA84 |
| Kellie Paschke | Petroleum Marketers and Convenience Stores of IA | Supporting | GA84 |
| Troy Skinner | Petroleum Marketers and Convenience Stores of IA | Supporting | GA84 |