| Daniel Zeno | American Civil Liberties Union of Iowa (ACLU-IA) | Opposing | GA87 |
| Mark Stringer | American Civil Liberties Union of Iowa (ACLU-IA) | Opposing | GA87 |
| Pete McRoberts | American Civil Liberties Union of Iowa (ACLU-IA) | Opposing | GA87 |
| Rita Bettis Austen | American Civil Liberties Union of Iowa (ACLU-IA) | Opposing | GA87 |
| Marty Ryan | Fawkes-Lee & Ryan Inc. | Opposing | GA87 |
| Stephanie Fawkes-Lee | Fawkes-Lee & Ryan Inc. | Opposing | GA87 |
| Doug Struyk | Intoximeters, Inc. | Undecided | GA87 |
| Jennifer Dorman | Intoximeters, Inc. | Undecided | GA87 |
| Jim Carney | Intoximeters, Inc. | Undecided | GA87 |
| Mike Heller | Iowa Academy of Trial Lawyers | Undecided | GA87 |
| Paula Feltner | Iowa Academy of Trial Lawyers | Undecided | GA87 |
| Brad Lint | Iowa Association for Justice | Opposing | GA87 |
| Lisa Davis-Cook | Iowa Association for Justice | Opposing | GA87 |
| David Palmer | Iowa Association of Community College Trustees (IACCT) | Undecided | GA87 |
| Mike Heller | Iowa Association of Magistrate Judges | Undecided | GA87 |
| Paula Feltner | Iowa Association of Magistrate Judges | Undecided | GA87 |
| Robert Hartwig | Iowa Bankers Association | Undecided | GA87 |
| Sharon Presnall | Iowa Bankers Association | Undecided | GA87 |
| Kelly Meyers | Iowa County Attorneys Association | Undecided | GA87 |
| Susan Cameron Daemen | Iowa County Attorneys Association | Undecided | GA87 |
| Amber Markham | Iowa Dept. of Public Safety | Undecided | GA87 |
| Susan Fenton | Iowa Dept. of Transportation | Undecided | GA87 |
| Kellie Paschke | Iowa Peace Officers Association | Undecided | GA87 |
| Troy Skinner | Iowa Peace Officers Association | Undecided | GA87 |
| Doug Struyk | Iowa State Bar Association | Undecided | GA87 |
| Jennifer Dorman | Iowa State Bar Association | Undecided | GA87 |
| Jim Carney | Iowa State Bar Association | Undecided | GA87 |
| Mike Heller | Iowa State Police Association | Undecided | GA87 |
| Paula Feltner | Iowa State Police Association | Undecided | 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 | Opposing | GA87 |
| Stephanie Fawkes-Lee | Justice Reform Consortium | Opposing | GA87 |