| Brad Epperly | Ames Chamber of Commerce | Undecided | GA89 |
| Dustin Miller | Ames Chamber of Commerce | Undecided | GA89 |
| Carolann Jensen | Board of Regents, State of Iowa | Undecided | GA89 |
| Jennifer Harbison | Board of Regents, State of Iowa | Undecided | GA89 |
| Keith Saunders | Board of Regents, State of Iowa | Undecided | GA89 |
| Mary Braun | Board of Regents, State of Iowa | Undecided | GA89 |
| Drew Kamp | Council Bluffs Chamber of Commerce | Undecided | GA89 |
| Ryan Sempf | Dubuque Area Chamber of Commerce | Undecided | GA89 |
| Molly Severn | Governor's Office | Supporting | GA89 |
| Andrea Woodard | Greater Des Moines Partnership | Undecided | GA89 |
| Brad Epperly | Greater Des Moines Partnership | Undecided | GA89 |
| Dustin Miller | Greater Des Moines Partnership | Undecided | GA89 |
| David Adelman | Iowa Academy of Family Physicians | Supporting | GA89 |
| Frank Chiodo | Iowa Academy of Family Physicians | Supporting | GA89 |
| Lillie Brady | Iowa Academy of Family Physicians | Supporting | GA89 |
| Matt Hinch | Iowa Academy of Family Physicians | Supporting | GA89 |
| Sara Allen | Iowa Academy of Family Physicians | Supporting | GA89 |
| Larry Murphy | Iowa Alliance for Arts Education | Undecided | GA89 |
| Meghan Malloy | Iowa Alliance for Arts Education | Undecided | GA89 |
| Brad Epperly | Iowa Chamber Alliance | Undecided | GA89 |
| Dustin Miller | Iowa Chamber Alliance | Undecided | GA89 |
| David Adelman | Iowa Osteopathic Medical Association | Supporting | GA89 |
| Frank Chiodo | Iowa Osteopathic Medical Association | Supporting | GA89 |
| Lillie Brady | Iowa Osteopathic Medical Association | Supporting | GA89 |
| Matt Hinch | Iowa Osteopathic Medical Association | Supporting | GA89 |
| Sara Allen | Iowa Osteopathic Medical Association | Supporting | GA89 |
| John Hall | Marshalltown Area Chamber of Commerce | Undecided | GA89 |
| Nathaniel Arnold | Professional Educators of Iowa | Undecided | GA89 |
| Brad Epperly | Quad Cities Chamber of Commerce | Undecided | GA89 |
| Dustin Miller | Quad Cities Chamber of Commerce | Undecided | GA89 |
| David Adelman | UnityPoint Health | Supporting | GA89 |
| Frank Chiodo | UnityPoint Health | Supporting | GA89 |
| Lillie Brady | UnityPoint Health | Supporting | GA89 |
| Matt Hinch | UnityPoint Health | Supporting | GA89 |
| Sara Allen | UnityPoint Health | Supporting | GA89 |