| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA91 |
| Jake Ketzner | Eastlake Partnership | Supporting | GA91 |
| Nick Boeyink | Eastlake Partnership | Supporting | GA91 |
| David Adelman | Hubbell Realty Company | Supporting | GA91 |
| Frank Chiodo | Hubbell Realty Company | Supporting | GA91 |
| Matt Hinch | Hubbell Realty Company | Supporting | GA91 |
| Paige Thorson | Hubbell Realty Company | Supporting | GA91 |
| Sara Allen | Hubbell Realty Company | Supporting | GA91 |
| Brad Epperly | Iowa Broadcasters Association | Undecided | GA91 |
| Casey Nickel | Iowa Broadcasters Association | Undecided | GA91 |
| Dustin Miller | Iowa Broadcasters Association | Undecided | GA91 |
| Chayce Glienke | Iowa Coalition Against Domestic Violence | Undecided | GA91 |
| Chip Baltimore | Iowa Coalition Against Domestic Violence | Undecided | GA91 |
| Laura Hessburg | Iowa Coalition Against Domestic Violence | Undecided | GA91 |
| Laura Hessburg | Iowa Coalition Against Domestic Violence | Opposing | GA91 |
| Matt Chapman | Iowa Manufactured Home Residents Network | Withdrawn | GA91 |
| Matt Chapman | Iowa Manufactured Home Residents Network | Opposing | GA91 |
| Brad Epperly | Iowa Newspaper Association | Undecided | GA91 |
| Casey Nickel | Iowa Newspaper Association | Undecided | GA91 |
| Dustin Miller | Iowa Newspaper Association | Undecided | GA91 |
| David Adelman | Iowa Real Estate Developers Association | Supporting | GA91 |
| Dustin Miller | Iowa Real Estate Developers Association | Supporting | GA91 |
| Frank Chiodo | Iowa Real Estate Developers Association | Supporting | GA91 |
| Matt Hinch | Iowa Real Estate Developers Association | Supporting | GA91 |
| Paige Thorson | Iowa Real Estate Developers Association | Supporting | GA91 |
| Sara Allen | Iowa Real Estate Developers Association | Supporting | GA91 |
| Doug Struyk | Iowa State Bar Association | Undecided | GA91 |
| Jennifer Dorman | Iowa State Bar Association | Undecided | GA91 |
| Jim Carney | Iowa State Bar Association | Undecided | GA91 |
| Gary Grant | Linn County Board of Supervisors | Undecided | GA91 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA91 |
| Gary Grant | Urban County Coalition | Undecided | GA91 |
| Larry Murphy | Urban County Coalition | Undecided | GA91 |