| Marc Beltrame | Agribusiness Assn. of IA | Undecided | GA83 |
| Steven Schoenebaum | Agribusiness Assn. of IA | Undecided | GA83 |
| Larry Murphy | City of Cedar Rapids | Undecided | GA83 |
| Bill Wimmer | Home Builders Assn. of IA | Undecided | GA83 |
| Craig Schoenfeld | Home Builders Assn. of IA | Undecided | GA83 |
| John Gilliland | IA. Assn. of Business and Industry (ABI) | Undecided | GA83 |
| Nicole Crain | IA. Assn. of Business and Industry (ABI) | Undecided | GA83 |
| Brad Epperly | IA. Assn. of Electric Cooperatives | Undecided | GA83 |
| James West | IA. Assn. of Electric Cooperatives | Undecided | GA83 |
| Keith Luchtel | IA. Assn. of Electric Cooperatives | Undecided | GA83 |
| Paula Dierenfeld | IA. Assn. of Electric Cooperatives | Undecided | GA83 |
| Scott Sundstrom | IA. Assn. of Electric Cooperatives | Undecided | GA83 |
| Tim Coonan | IA. Assn. of Electric Cooperatives | Undecided | GA83 |
| Jim Obradovich | IA. Environmental Council | Undecided | GA83 |
| Nathaniel Baer | IA. Environmental Council | Undecided | GA83 |
| David Adelman | IA. Medical Society | Undecided | GA83 |
| Eric Nemmers | IA. Medical Society | Undecided | GA83 |
| Karla Fultz McHenry | IA. Medical Society | Undecided | GA83 |
| Betty Lord-Dinan | IA. Nurses Assn. | Supporting | GA83 |
| Linda Goeldner | IA. Nurses Assn. | Supporting | GA83 |
| Jim Obradovich | IA. Recycling Assn. | 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 |
| Jim Obradovich | IA. Society of Solid Waste Operations (ISOSWO) | Undecided | GA83 |
| Hanna DeGroot | IA. State Assn. of Counties | Opposing | GA83 |
| Linda Hinton | IA. State Assn. of Counties | Opposing | GA83 |
| Nathan Bonnett | IA. State Assn. of Counties | Opposing | GA83 |
| William Peterson | IA. State Assn. of Counties | Opposing | GA83 |
| Marc Beltrame | M2P2, LLC | Undecided | GA83 |
| Michael Blaser | M2P2, LLC | Undecided | GA83 |
| Robert Grayson | Office of Energy Independence | Undecided | GA83 |
| Brian Johnson | Polk County - Board of Supervisors | Supporting | GA83 |
| JoAnn Johnson | Polk County - Board of Supervisors | Supporting | GA83 |
| Marc Beltrame | Smithfield Foods, Inc. | Undecided | GA83 |
| Steven Schoenebaum | Smithfield Foods, Inc. | Undecided | GA83 |
| Mike Heller | Waste Management, Inc. | Undecided | GA83 |
| Paula Feltner | Waste Management, Inc. | Undecided | GA83 |