| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA91 |
| Chip Baltimore | Chip Baltimore | Supporting | GA91 |
| Nick Laning | Des Moines Water Works | Supporting | GA91 |
| Noah Hackbart | Des Moines Water Works | Supporting | GA91 |
| Threase Harms | Des Moines Water Works | Supporting | GA91 |
| Brad Epperly | Developers Council | Undecided | GA91 |
| Casey Nickel | Developers Council | Undecided | GA91 |
| Dustin Miller | Developers Council | Undecided | GA91 |
| Census Lo-liyong | Electronic Services System | Undecided | GA91 |
| Brad Epperly | Iowa Chamber Alliance | Undecided | GA91 |
| Casey Nickel | Iowa Chamber Alliance | Undecided | GA91 |
| Dustin Miller | Iowa Chamber Alliance | Undecided | GA91 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Undecided | GA91 |
| Census Lo-liyong | Iowa County Recorders Association | Undecided | GA91 |
| Megan Clyman | Iowa County Recorders Association | Undecided | GA91 |
| Stacie Herridge | Iowa County Recorders Association | Undecided | GA91 |
| Todd Coffelt | Iowa Dept. of Natural Resources | Undecided | GA91 |
| Clara Wulfsen | Iowa Drainage District Association | Undecided | GA91 |
| Doug Struyk | Iowa Drainage District Association | Undecided | GA91 |
| Jennifer Dorman | Iowa Drainage District Association | Undecided | GA91 |
| Jim Carney | Iowa Drainage District Association | Undecided | GA91 |
| John Torbert | Iowa Drainage District Association | Undecided | GA91 |
| Mona Bond | Iowa Drainage District Association | Undecided | GA91 |
| Cody Smith | Iowa Environmental Council | Undecided | GA91 |
| Colleen Fowle | Iowa Environmental Council | Undecided | GA91 |
| Kerri Johannsen | Iowa Environmental Council | Undecided | GA91 |
| Michael Schmidt | Iowa Environmental Council | Undecided | GA91 |
| Noah Hackbart | Iowa Environmental Council | Undecided | GA91 |
| Sarah Green | Iowa Environmental Council | Undecided | GA91 |
| Threase Harms | Iowa Environmental Council | Undecided | GA91 |
| Jefferson Fink | Iowa Interstate Railroad | Undecided | GA91 |
| Jim Obradovich | Iowa Interstate Railroad | Undecided | GA91 |
| Victoria Sinclair | Iowa Interstate Railroad | Undecided | GA91 |
| Mike St. Clair | Iowa Land Title Association | Opposing | GA91 |
| Andrea Woodard | Iowa State Association of Counties | Undecided | GA91 |
| Jamie Cashman | Iowa State Association of Counties | Undecided | GA91 |
| Lucas Beenken | Iowa State Association of Counties | Undecided | GA91 |
| John Hall | Marshalltown Area Chamber of Commerce | Undecided | GA91 |
| Michael Triplett | Union Pacific Railroad | Undecided | GA91 |
| Brad Epperly | res | Undecided | GA91 |
| Casey Nickel | res | Undecided | GA91 |
| Dustin Miller | res | Undecided | GA91 |