| Charlie Wishman | Iowa Federation of Labor, AFL-CIO | Opposing | GA87 |
| Jamie Cashman | Iowa State Association of Counties | Opposing | GA87 |
| Jamie Cashman | Iowa State Association of Counties | Undecided | GA87 |
| Kristi Harshbarger | Iowa State Association of Counties | Opposing | GA87 |
| Kristi Harshbarger | Iowa State Association of Counties | Undecided | GA87 |
| Lucas Beenken | Iowa State Association of Counties | Opposing | GA87 |
| Lucas Beenken | Iowa State Association of Counties | Undecided | GA87 |
| William Peterson | Iowa State Association of Counties | Opposing | GA87 |
| William Peterson | Iowa State Association of Counties | Undecided | GA87 |
| Dennis Parrott | Iowa State Association of County Auditors | Opposing | GA87 |
| Heidi Burhans | Iowa State Association of County Auditors | Opposing | GA87 |
| Jamie Cashman | Iowa State Association of County Supervisors | Opposing | GA87 |
| Jamie Cashman | Iowa State Association of County Supervisors | Undecided | GA87 |
| Kristi Harshbarger | Iowa State Association of County Supervisors | Opposing | GA87 |
| Kristi Harshbarger | Iowa State Association of County Supervisors | Undecided | GA87 |
| Lucas Beenken | Iowa State Association of County Supervisors | Opposing | GA87 |
| Lucas Beenken | Iowa State Association of County Supervisors | Undecided | GA87 |
| William Peterson | Iowa State Association of County Supervisors | Opposing | GA87 |
| William Peterson | Iowa State Association of County Supervisors | 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 |
| Amy Campbell | League of Women Voters of Iowa | Undecided | GA87 |
| Craig Patterson | League of Women Voters of Iowa | Undecided | GA87 |
| Gary Grant | Linn County Board of Supervisors | Opposing | GA87 |
| Gary Grant | Linn County Board of Supervisors | Withdrawn | GA87 |
| Gary Grant | Linn County Board of Supervisors | Undecided | GA87 |
| Larry Murphy | Linn County Board of Supervisors | Opposing | GA87 |
| Larry Murphy | Linn County Board of Supervisors | Withdrawn | GA87 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA87 |
| Meghan Malloy | Linn County Board of Supervisors | Opposing | GA87 |
| Meghan Malloy | Linn County Board of Supervisors | Withdrawn | GA87 |
| Meghan Malloy | Linn County Board of Supervisors | Undecided | GA87 |
| Brian Johnson | Polk County - Board of Supervisors | Undecided | GA87 |
| Craig Walter | Polk County - Board of Supervisors | Undecided | GA87 |
| Jason Gordon | Quad Cities Chamber of Commerce | Opposing | GA87 |
| Gary Grant | Urban County Coalition | Opposing | GA87 |
| Gary Grant | Urban County Coalition | Withdrawn | GA87 |
| Gary Grant | Urban County Coalition | Undecided | GA87 |
| Larry Murphy | Urban County Coalition | Opposing | GA87 |
| Larry Murphy | Urban County Coalition | Withdrawn | GA87 |
| Larry Murphy | Urban County Coalition | Undecided | GA87 |
| Meghan Malloy | Urban County Coalition | Opposing | GA87 |
| Meghan Malloy | Urban County Coalition | Withdrawn | GA87 |
| Meghan Malloy | Urban County Coalition | Undecided | GA87 |