| Brad Epperly | Greater Des Moines Partnership | Undecided | GA83 |
| James West | Greater Des Moines Partnership | Undecided | GA83 |
| Jay Byers | Greater Des Moines Partnership | Undecided | GA83 |
| Keith Luchtel | Greater Des Moines Partnership | Undecided | GA83 |
| Paula Dierenfeld | Greater Des Moines Partnership | Undecided | GA83 |
| Scott Sundstrom | Greater Des Moines Partnership | Undecided | GA83 |
| Jim Obradovich | Green Tech, Inc. | Supporting | GA83 |
| Brad Epperly | IA. Automobile Dealers Assn. | Undecided | GA83 |
| James West | IA. Automobile Dealers Assn. | Undecided | GA83 |
| Keith Luchtel | IA. Automobile Dealers Assn. | Undecided | GA83 |
| Paula Dierenfeld | IA. Automobile Dealers Assn. | Undecided | GA83 |
| Scott Sundstrom | IA. Automobile Dealers Assn. | Undecided | GA83 |
| Brad Epperly | IA. Chamber Alliance | Undecided | GA83 |
| James West | IA. Chamber Alliance | Undecided | GA83 |
| Keith Luchtel | IA. Chamber Alliance | Undecided | GA83 |
| Paula Dierenfeld | IA. Chamber Alliance | Undecided | GA83 |
| Scott Sundstrom | IA. Chamber Alliance | Undecided | GA83 |
| Lyle Krewson | IA. Chapter of Sierra Club | Supporting | GA83 |
| Sharon Tahtinen | IA. Dept. of Natural Resources | Supporting | GA83 |
| Jim Obradovich | IA. Environmental Council | Supporting | GA83 |
| Jim Obradovich | IA. Recycling Assn. | Supporting | GA83 |
| Jim Henter | IA. Retail Federation | Undecided | GA83 |
| Mike Heller | IA. Retail Federation | Undecided | GA83 |
| Paula Feltner | IA. Retail Federation | Undecided | GA83 |
| Brad Epperly | IA. Society of Certified Public Accountants | Undecided | GA83 |
| James West | IA. Society of Certified Public Accountants | Undecided | GA83 |
| Keith Luchtel | IA. Society of Certified Public Accountants | Undecided | GA83 |
| Paula Dierenfeld | IA. Society of Certified Public Accountants | Undecided | GA83 |
| Scott Sundstrom | IA. Society of Certified Public Accountants | Undecided | GA83 |
| Hanna DeGroot | IA. State Assn. of Counties | Supporting | GA83 |
| Linda Hinton | IA. State Assn. of Counties | Supporting | GA83 |
| Nathan Bonnett | IA. State Assn. of Counties | Supporting | GA83 |
| William Peterson | IA. State Assn. of Counties | Supporting | GA83 |
| Michael Wentzien | IA. State Assn. of County Supervisors | Supporting | GA83 |
| Cloyd Robinson | Iowans for Tax Relief | Opposing | GA83 |
| Edward Failor, | Iowans for Tax Relief | Opposing | GA83 |
| Katie Koberg | Iowans for Tax Relief | Opposing | GA83 |
| Mary Earnhardt | Iowans for Tax Relief | Opposing | GA83 |
| Mike Heller | Waste Management, Inc. | Undecided | GA83 |
| Paula Feltner | Waste Management, Inc. | Undecided | GA83 |