| Bob Rafferty | American Legion of Iowa | Undecided | GA88 |
| Maddie Wilcox | American Legion of Iowa | Undecided | GA88 |
| Robert Szalay | American Legion of Iowa | Undecided | GA88 |
| Threase Harms | American Legion of Iowa | Undecided | GA88 |
| Elizabeth Ledvina | IA State Of Commission of Veterans Of Veterans Affairs | Supporting | GA88 |
| Brad Epperly | Iowa Broadcasters Association | Undecided | GA88 |
| Dustin Miller | Iowa Broadcasters Association | Undecided | GA88 |
| Katie Graham | Iowa Broadcasters Association | Undecided | GA88 |
| Paula Dierenfeld | Iowa Broadcasters Association | Undecided | GA88 |
| John Murphy | Iowa County Recorders Association | Withdrawn | GA88 |
| John Murphy | Iowa County Recorders Association | Undecided | GA88 |
| John Murphy | Iowa County Recorders Association | Supporting | GA88 |
| Stacie Herridge | Iowa County Recorders Association | Supporting | GA88 |
| Brad Epperly | Iowa Newspaper Association | Undecided | GA88 |
| Dustin Miller | Iowa Newspaper Association | Undecided | GA88 |
| Katie Graham | Iowa Newspaper Association | Undecided | GA88 |
| Paula Dierenfeld | Iowa Newspaper Association | Undecided | GA88 |
| Brad Epperly | Iowa Society of Certified Public Accountants | Undecided | GA88 |
| Dustin Miller | Iowa Society of Certified Public Accountants | Undecided | GA88 |
| Katie Graham | Iowa Society of Certified Public Accountants | Undecided | GA88 |
| Paula Dierenfeld | Iowa Society of Certified Public Accountants | Undecided | GA88 |
| Mike Heller | Iowa State Association of Assessors | Undecided | GA88 |
| Paula Feltner | Iowa State Association of Assessors | Undecided | GA88 |
| Jamie Cashman | Iowa State Association of Counties | Supporting | GA88 |
| Kristi Harshbarger | Iowa State Association of Counties | Supporting | GA88 |
| Lucas Beenken | Iowa State Association of Counties | Supporting | GA88 |
| William Peterson | Iowa State Association of Counties | Supporting | GA88 |
| Doug Struyk | Iowa State Bar Association | Undecided | GA88 |
| Jennifer Dorman | Iowa State Bar Association | Undecided | GA88 |
| Jim Carney | Iowa State Bar Association | Undecided | GA88 |
| Gary Grant | Linn County Board of Supervisors | Undecided | GA88 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA88 |
| Meghan Malloy | Linn County Board of Supervisors | Undecided | GA88 |
| R. Bruce Beeston | Veterans National Recovery Center | Supporting | GA88 |
| Michael Young | Veterans of Foreign Wars; Department of Iowa | Undecided | GA88 |
| R. Bruce Beeston | Vietnam Veterans of America, Inc., State Council | Supporting | GA88 |