| Brad Epperly | AIG-American International Companies | Undecided | GA87 |
| Dustin Miller | AIG-American International Companies | Undecided | GA87 |
| Paige Thorson | AIG-American International Companies | Undecided | GA87 |
| Paula Dierenfeld | AIG-American International Companies | Undecided | GA87 |
| Brad Epperly | American Insurance Association | Undecided | GA87 |
| Dustin Miller | American Insurance Association | Undecided | GA87 |
| Paige Thorson | American Insurance Association | Undecided | GA87 |
| Paula Dierenfeld | American Insurance Association | Undecided | GA87 |
| Connor Slack | Brain Injury Alliance of Iowa | Opposing | GA87 |
| Dane Schumann | Brain Injury Alliance of Iowa | Opposing | GA87 |
| Emily Hockins | Brain Injury Alliance of Iowa | Opposing | GA87 |
| Threase Harms | Brain Injury Alliance of Iowa | Opposing | GA87 |
| John Pederson | CN Rail | Undecided | GA87 |
| Matt Eide | CN Rail | Undecided | GA87 |
| Brad Epperly | Iowa Automobile Dealers Association | Undecided | GA87 |
| Dustin Miller | Iowa Automobile Dealers Association | Undecided | GA87 |
| Paige Thorson | Iowa Automobile Dealers Association | Undecided | GA87 |
| Paula Dierenfeld | Iowa Automobile Dealers Association | Undecided | GA87 |
| Neila Seaman | Iowa Chapter of Sierra Club | Opposing | GA87 |
| Kelly Meyers | Iowa County Attorneys Association | Undecided | GA87 |
| Susan Cameron Daemen | Iowa County Attorneys Association | Undecided | GA87 |
| Mikel Derby | Iowa Dept. of Transportation | Undecided | GA87 |
| MARK MAXWELL | Iowa Motorcycle Dealers Association | Undecided | GA87 |
| David Adelman | Iowa Nebraska Farm Equipment Dealers Association | Undecided | GA87 |
| Frank Chiodo | Iowa Nebraska Farm Equipment Dealers Association | Undecided | GA87 |
| Matt Hinch | Iowa Nebraska Farm Equipment Dealers Association | Undecided | GA87 |
| Sara Allen | Iowa Nebraska Farm Equipment Dealers Association | Undecided | GA87 |
| Will Rogers | Iowa Nebraska Farm Equipment Dealers Association | Undecided | GA87 |
| Dan Kleen | Iowa Off -Highway Vehicle Association | Supporting | GA87 |
| Dan Kleen | Iowa Off -Highway Vehicle Association | Withdrawn | GA87 |
| Dan Kleen | Iowa Off -Highway Vehicle Association | Undecided | GA87 |
| Gary Grant | Iowa Police Chief Association (FKA Iowa Police Executive Forum) | Undecided | GA87 |
| Larry Murphy | Iowa Police Chief Association (FKA Iowa Police Executive Forum) | Undecided | GA87 |
| Mike Heller | Iowa State Snowmobile Association | Undecided | GA87 |
| Paula Feltner | Iowa State Snowmobile Association | Undecided | GA87 |