| Karen Sisson | 3M Company and its affiliates | Opposing | GA89 |
| Robert Weiser | 3M Company and its affiliates | Opposing | GA89 |
| Michael Triplett | Alliance For Automotive Innovation | Undecided | GA89 |
| Brad Epperly | Iowa Automobile Dealers Association | Supporting | GA89 |
| Dustin Miller | Iowa Automobile Dealers Association | Supporting | GA89 |
| Kelly Meyers | Iowa County Attorneys Association | Opposing | GA89 |
| Sarah Jennings | Iowa Dept. of Public Safety | Undecided | GA89 |
| Susan Fenton | Iowa Dept. of Transportation | Undecided | GA89 |
| James Piazza, Jr. | Iowa Independent Automobile Dealers Association | Undecided | GA89 |
| Kellie Paschke | Iowa Peace Officers Association | Opposing | GA89 |
| Kelly Meyers | Iowa Peace Officers Association | Opposing | GA89 |
| Logan Murray | Iowa Peace Officers Association | Opposing | GA89 |
| Troy Skinner | Iowa Peace Officers Association | Opposing | GA89 |
| Larry Murphy | Iowa Police Chief Association (FKA Iowa Police Executive Forum) | Opposing | GA89 |
| Larry Murphy | Iowa Police Chief Association (FKA Iowa Police Executive Forum) | Withdrawn | GA89 |
| Larry Murphy | Iowa Police Chief Association (FKA Iowa Police Executive Forum) | Undecided | GA89 |
| Meghan Malloy | Iowa Police Chief Association (FKA Iowa Police Executive Forum) | Opposing | GA89 |
| Meghan Malloy | Iowa Police Chief Association (FKA Iowa Police Executive Forum) | Withdrawn | GA89 |
| Meghan Malloy | Iowa Police Chief Association (FKA Iowa Police Executive Forum) | Undecided | GA89 |
| Susan Cameron Daemen | Iowa State Sheriffs' & Deputies' Association | Opposing | GA89 |
| Tony Phillips | Iowa State Sheriffs' & Deputies' Association | Opposing | GA89 |
| Fernando Trevino Jr. | Lyft, Inc. | Opposing | GA89 |
| Christopher Rants | State Police Officers Council | Opposing | GA89 |
| John Cacciatore | State Police Officers Council | Opposing | GA89 |
| Kate Walton | Uber Technologies | Undecided | GA89 |
| Matt Eide | Uber Technologies | Undecided | GA89 |