| Brad Lint | Iowa Association for Justice | Opposing | GA89 |
| Lisa Davis-Cook | Iowa Association for Justice | Opposing | GA89 |
| Nick Laning | Iowa Bicycle Coalition | Supporting | GA89 |
| Nick Laning | Iowa Bicycle Coalition | Undecided | GA89 |
| Rachel Ong | Iowa Bicycle Coalition | Supporting | GA89 |
| Rachel Ong | Iowa Bicycle Coalition | Undecided | GA89 |
| Threase Harms | Iowa Bicycle Coalition | Supporting | GA89 |
| Threase Harms | Iowa Bicycle Coalition | Undecided | GA89 |
| Kelly Meyers | Iowa County Attorneys Association | Undecided | GA89 |
| Maddie Wilcox | Iowa Dept. of Public Health | Undecided | GA89 |
| Sarah Jennings | Iowa Dept. of Public Safety | Undecided | GA89 |
| Marc Beltrame | Iowa Motor Truck Association | Undecided | GA89 |
| Kellie Paschke | Iowa Peace Officers Association | Supporting | GA89 |
| Kelly Meyers | Iowa Peace Officers Association | Supporting | GA89 |
| Logan Murray | Iowa Peace Officers Association | Supporting | GA89 |
| Troy Skinner | Iowa Peace Officers Association | Supporting | GA89 |
| Larry Murphy | Iowa Police Chief Association (FKA Iowa Police Executive Forum) | Supporting | GA89 |
| Meghan Malloy | Iowa Police Chief Association (FKA Iowa Police Executive Forum) | Supporting | GA89 |
| Jamie Cashman | Iowa State Association of Counties | Supporting | GA89 |
| Kristi Harshbarger | Iowa State Association of Counties | Supporting | GA89 |
| Lucas Beenken | Iowa State Association of Counties | Supporting | GA89 |
| William Peterson | Iowa State Association of Counties | Supporting | GA89 |
| Doug Struyk | Iowa State Bar Association | Undecided | GA89 |
| Jennifer Dorman | Iowa State Bar Association | Undecided | GA89 |
| Jim Carney | Iowa State Bar Association | Undecided | GA89 |
| Susan Cameron Daemen | Iowa State Sheriffs' & Deputies' Association | Supporting | GA89 |
| Tony Phillips | Iowa State Sheriffs' & Deputies' Association | Supporting | GA89 |