| Robert Weiser | Annett Holdings | Undecided | GA90 |
| Scott Newhard | Associated General Contractors of Iowa | Supporting | GA90 |
| Robert Weiser | CRST International | Undecided | GA90 |
| Molly Severn | Governor's Office | Supporting | GA90 |
| James Piazza, Jr. | Heavy Highway Contractors Association | Supporting | GA90 |
| Kelly Meyers | Iowa County Attorneys Association | Undecided | GA90 |
| Tom Ferguson | Iowa County Attorneys Association | Undecided | GA90 |
| Josie Wagler | Iowa Dept. of Public Safety | Supporting | GA90 |
| David Scott | Iowa Good Roads Association | Supporting | GA90 |
| David Scott | Iowa Motor Truck Association | Supporting | GA90 |
| Kellie Paschke | Iowa Peace Officers Association | Undecided | GA90 |
| Kelly Meyers | Iowa Peace Officers Association | Undecided | GA90 |
| Troy Skinner | Iowa Peace Officers Association | Undecided | GA90 |
| Larry Murphy | Iowa Police Chief Association (FKA Iowa Police Executive Forum) | Supporting | GA90 |
| BRITTANY LUMLEY | Iowa State Patrol Supervisors Association | Supporting | GA90 |
| Mark Joyce | Iowa State Patrol Supervisors Association | Supporting | GA90 |
| Christopher Rants | Iowa State Troopers Association | Supporting | GA90 |
| John Cacciatore | Iowa State Troopers Association | Supporting | GA90 |
| Gary Grant | Linn County Board of Supervisors | Supporting | GA90 |
| Larry Murphy | Linn County Board of Supervisors | Supporting | GA90 |
| Christopher Rants | State Police Officers Council | Supporting | GA90 |
| John Cacciatore | State Police Officers Council | Supporting | GA90 |