| Cheryl Riley | AT & T | Supporting | GA87 |
| Dustin Blythe | AT & T | Supporting | GA87 |
| Angela Davis | Alamo Rent A Car | Undecided | GA87 |
| Bill Wimmer | Alamo Rent A Car | Withdrawn | GA87 |
| Bill Wimmer | Alamo Rent A Car | Undecided | GA87 |
| Eric Goranson | Alliance of Automobile Manufacturers | Undecided | GA87 |
| Karla Fultz McHenry | Alliance of Automobile Manufacturers | Undecided | GA87 |
| Michael Triplett | Alliance of Automobile Manufacturers | Undecided | GA87 |
| Robert Weiser | Annett Holdings | Undecided | GA87 |
| Connor Slack | Brain Injury Alliance of Iowa | Supporting | GA87 |
| Dane Schumann | Brain Injury Alliance of Iowa | Supporting | GA87 |
| Emily Hockins | Brain Injury Alliance of Iowa | Supporting | GA87 |
| Threase Harms | Brain Injury Alliance of Iowa | Supporting | GA87 |
| Robert Weiser | CRST International | Undecided | GA87 |
| Angela Davis | Enterprise Rent-A-Car | Undecided | GA87 |
| Bill Wimmer | Enterprise Rent-A-Car | Withdrawn | GA87 |
| Bill Wimmer | Enterprise Rent-A-Car | Undecided | GA87 |
| Marty Ryan | Fawkes-Lee & Ryan Inc. | Undecided | GA87 |
| Stephanie Fawkes-Lee | Fawkes-Lee & Ryan Inc. | Undecided | GA87 |
| Mike St. Clair | Grinnell Mutual Reinsurance Company | Supporting | GA87 |
| Angela Davis | Hy-Vee, Inc. | Undecided | GA87 |
| Bill Wimmer | Hy-Vee, Inc. | Withdrawn | GA87 |
| Bill Wimmer | Hy-Vee, Inc. | Undecided | GA87 |
| Robert Hartwig | Iowa Bankers Association | Undecided | GA87 |
| Sharon Presnall | Iowa Bankers Association | Undecided | GA87 |
| Angela Davis | Iowa Beverage Association | Undecided | GA87 |
| Bill Wimmer | Iowa Beverage Association | Withdrawn | GA87 |
| Bill Wimmer | Iowa Beverage Association | Undecided | GA87 |
| Connor Slack | Iowa Bicycle Coalition | Supporting | GA87 |
| Dane Schumann | Iowa Bicycle Coalition | Supporting | GA87 |
| Emily Hockins | Iowa Bicycle Coalition | Supporting | GA87 |
| Threase Harms | Iowa Bicycle Coalition | Supporting | GA87 |
| Kelly Meyers | Iowa County Attorneys Association | Supporting | GA87 |
| Susan Cameron Daemen | Iowa County Attorneys Association | Supporting | GA87 |
| Amber Markham | Iowa Dept. of Public Safety | Supporting | GA87 |
| Eric Goranson | Iowa Emergency Medical Services Association | Supporting | GA87 |
| Karla Fultz McHenry | Iowa Emergency Medical Services Association | Supporting | GA87 |
| Michael Triplett | Iowa Emergency Medical Services Association | Supporting | GA87 |
| Jeffrey Boeyink | Iowa Insurance Institute | Supporting | GA87 |
| Alan Kemp | Iowa League of Cities | Supporting | GA87 |
| Lindsey McCune | Iowa League of Cities | Supporting | GA87 |
| Robert Palmer | Iowa League of Cities | Supporting | GA87 |
| Angela Davis | Iowa Lumber Association | Undecided | GA87 |
| Bill Wimmer | Iowa Lumber Association | Withdrawn | GA87 |
| Bill Wimmer | Iowa Lumber Association | Undecided | GA87 |
| Kellie Paschke | Iowa Peace Officers Association | Supporting | GA87 |
| Troy Skinner | Iowa Peace Officers Association | Supporting | GA87 |
| Gary Grant | Iowa Police Chief Association (FKA Iowa Police Executive Forum) | Supporting | GA87 |
| Larry Murphy | Iowa Police Chief Association (FKA Iowa Police Executive Forum) | Supporting | GA87 |
| Amy Campbell | Iowa Public Transit Association (IPT) | Undecided | GA87 |
| Craig Patterson | Iowa Public Transit Association (IPT) | Undecided | GA87 |
| Jamie Cashman | Iowa State Association of Counties | Supporting | GA87 |
| Kristi Harshbarger | Iowa State Association of Counties | Supporting | GA87 |
| Lucas Beenken | Iowa State Association of Counties | Supporting | GA87 |
| William Peterson | Iowa State Association of Counties | Supporting | GA87 |
| William Heckroth | Iowa State Association of County Supervisors | Supporting | GA87 |
| Doug Struyk | Iowa State Bar Association | Undecided | GA87 |
| Jim Carney | Iowa State Bar Association | Undecided | GA87 |
| Shannon Henson | Iowa State Bar Association | Undecided | GA87 |
| Mike Heller | Iowa State Police Association | Supporting | GA87 |
| Paula Feltner | Iowa State Police Association | Supporting | GA87 |
| Kelly Meyers | Iowa State Sheriffs' & Deputies' Association | Supporting | GA87 |
| Susan Cameron Daemen | Iowa State Sheriffs' & Deputies' Association | Supporting | GA87 |
| Marty Ryan | Justice Reform Consortium | Undecided | GA87 |
| Stephanie Fawkes-Lee | Justice Reform Consortium | Undecided | GA87 |
| Gary Grant | Linn County Board of Supervisors | Undecided | GA87 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA87 |
| Meghan Malloy | Linn County Board of Supervisors | Undecided | GA87 |
| Angela Davis | National Rent A Car | Undecided | GA87 |
| Bill Wimmer | National Rent A Car | Withdrawn | GA87 |
| Bill Wimmer | National Rent A Car | Undecided | GA87 |
| Mike St. Clair | Property Casualty Insurers Association of America (PCI) | Supporting | GA87 |
| David Adelman | State Farm Insurance | Supporting | GA87 |
| Frank Chiodo | State Farm Insurance | Supporting | GA87 |
| Matt Hinch | State Farm Insurance | Supporting | GA87 |
| Sara Allen | State Farm Insurance | Supporting | GA87 |
| Christopher Rants | State Police Officers Council | Supporting | GA87 |
| John Cacciatore | State Police Officers Council | Supporting | GA87 |
| Robert Weiser | Trans Iowa | Undecided | GA87 |
| Brian Johnson | U.S. Cellular | Supporting | GA87 |
| Gary Grant | Urban County Coalition | Undecided | GA87 |
| Larry Murphy | Urban County Coalition | Undecided | GA87 |
| Meghan Malloy | Urban County Coalition | Undecided | GA87 |