| Amy Campbell | AARP IA | Opposing | GA84 |
| Brad Anderson | AARP IA | Opposing | GA84 |
| Bruce Koeppl | AARP IA | Opposing | GA84 |
| Craig Patterson | AARP IA | Opposing | GA84 |
| Marcia Nichols | AFSCME IA Council 61 | Opposing | GA84 |
| Mitchell Stille | AFSCME IA Council 61 | Opposing | GA84 |
| Ben Stone | American Civil Liberties Union of IA (ACLU-IA) | Opposing | GA84 |
| Stephen Roberts | Disability Rights IA | Undecided | GA84 |
| Marty Ryan | Fawkes-Lee & Ryan Inc. | Opposing | GA84 |
| Stephanie Fawkes-Lee | Fawkes-Lee & Ryan Inc. | Opposing | GA84 |
| NaomiSeaYoung Wittstruck | IA. Annual Conference of United Methodist Church | Opposing | GA84 |
| Larry Murphy | IA. Catholic Conference | Undecided | GA84 |
| Neila Seaman | IA. Chapter of Sierra Club | Opposing | GA84 |
| Adam Mason | IA. Citizens for Community Improvement Action Fund | Opposing | GA84 |
| Rik Shannon | IA. Developmental Disabilities Council | Undecided | GA84 |
| Norman Pawlewski | IA. Faith & Freedom Coalition | Supporting | GA84 |
| Janice Laue | IA. Federation of Labor, AFL-CIO | Opposing | GA84 |
| Ken Sagar | IA. Federation of Labor, AFL-CIO | Opposing | GA84 |
| Robert Ussery | IA. Minuteman Civil Defense Corps | Supporting | GA84 |
| Dennis Parrott | IA. Precinct Atlas Association of County Auditors | Undecided | GA84 |
| Sonia Ashe | IA. Public Interest Research Group | Opposing | GA84 |
| Doug Struyk | IA. Secretary of State | Supporting | GA84 |
| Brad Epperly | IA. Society of Certified Public Accountants | Undecided | GA84 |
| Keith Luchtel | IA. Society of Certified Public Accountants | Undecided | GA84 |
| Paula Dierenfeld | IA. Society of Certified Public Accountants | Undecided | GA84 |
| Scott Sundstrom | IA. Society of Certified Public Accountants | Undecided | GA84 |
| Hanna DeGroot | IA. State Assn. of Counties | Undecided | GA84 |
| Linda Hinton | IA. State Assn. of Counties | Undecided | GA84 |
| MaryBeth Mellick | IA. State Assn. of Counties | Undecided | GA84 |
| Nathan Bonnett | IA. State Assn. of Counties | Undecided | GA84 |
| William Peterson | IA. State Assn. of Counties | Undecided | GA84 |
| Michael Wentzien | IA. State Assn. of County Supervisors | Undecided | GA84 |
| Brad Hudson | IA. State Education Assn. | Undecided | GA84 |
| Melissa Peterson | IA. State Education Assn. | Undecided | GA84 |
| Susan Cameron Daemen | IA. State Sheriffs' & Deputies' Assn. | Supporting | GA84 |
| Susan Cameron Daemen | IA. State Sheriffs' & Deputies' Assn. | Undecided | GA84 |
| Connie Ryan | Interfaith Alliance of IA Action Fund | Opposing | GA84 |
| Don Racheter | Iowans for Tax Relief | Supporting | GA84 |
| Edward Failor, | Iowans for Tax Relief | Supporting | GA84 |
| Katie Koberg | Iowans for Tax Relief | Supporting | GA84 |
| Kellie Paschke | Iowans for Tax Relief | Supporting | GA84 |
| Mary Earnhardt | Iowans for Tax Relief | Supporting | GA84 |
| Troy Skinner | Iowans for Tax Relief | Supporting | GA84 |
| Amy Campbell | League of Women Voters of IA | Opposing | GA84 |
| Gary Grant | Linn County Board of Supervisors | Undecided | GA84 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA84 |
| Amy Campbell | Polk County - Board of Supervisors | Undecided | GA84 |
| Brian Johnson | Polk County - Board of Supervisors | Undecided | GA84 |
| Jamie Cashman | Polk County - Board of Supervisors | Undecided | GA84 |
| Mark Cooper | South Central Iowa Federation of Labor AFL-CIO | Opposing | GA84 |