| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA91 |
| Clair Lewis | City of Bettendorf | Undecided | GA91 |
| Kate Walton | City of Bettendorf | Undecided | GA91 |
| Matt Eide | City of Bettendorf | Undecided | GA91 |
| Gary Grant | City of Cedar Rapids | Undecided | GA91 |
| Larry Murphy | City of Cedar Rapids | Undecided | GA91 |
| Brad Epperly | City of Marion | Undecided | GA91 |
| Casey Nickel | City of Marion | Undecided | GA91 |
| Dustin Miller | City of Marion | Undecided | GA91 |
| James Piazza III | Heavy Highway Contractors Association | Undecided | GA91 |
| Nick Laning | IBEW Iowa State Conference | Undecided | GA91 |
| Threase Harms | IBEW Iowa State Conference | Undecided | GA91 |
| Michael Triplett | Iowa Alliance of Surety Companies | Undecided | GA91 |
| David Peck | Iowa Association of Municipal Utilities | Undecided | GA91 |
| Marc Beltrame | Iowa Association of Municipal Utilities | Undecided | GA91 |
| Emily Piper | Iowa Association of School Boards | Undecided | GA91 |
| Michelle Johnson | Iowa Association of School Boards | Undecided | GA91 |
| Carolann Jensen | Iowa Board of Regents | Undecided | GA91 |
| Jason Chapman | Iowa Board of Regents | Undecided | GA91 |
| Jennifer Harbison | Iowa Board of Regents | Undecided | GA91 |
| Jillian Carlson | Iowa Board of Regents | Undecided | GA91 |
| Chelsea Hoye | Iowa League of Cities | Undecided | GA91 |
| Cody Carlson | Iowa League of Cities | Undecided | GA91 |
| Doug Struyk | Iowa State Bar Association | Supporting | GA91 |
| Jennifer Dorman | Iowa State Bar Association | Supporting | GA91 |
| Jim Carney | Iowa State Bar Association | Supporting | GA91 |
| Jon Murphy | Iowa State Building and Construction Trades | Undecided | GA91 |
| Tom Cope | Iowa State Building and Construction Trades | Undecided | GA91 |
| Kurtis Bower | Kurtis Bower | Undecided | GA91 |
| Gary Grant | Linn County Board of Supervisors | Undecided | GA91 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA91 |
| Kellie Paschke | Marion County Board of Supervisors | Undecided | GA91 |
| Ben Hammes | Master Builders of Iowa | Supporting | GA91 |
| Logan Shine | Master Builders of Iowa | Supporting | GA91 |
| Christopher Rants | Mechanical Contractors Association of Iowa (MCAI) | Undecided | GA91 |
| Justin Hupfer | Mechanical Contractors Association of Iowa (MCAI) | Undecided | GA91 |
| David Adelman | Metropolitan Coalition | Undecided | GA91 |
| Frank Chiodo | Metropolitan Coalition | Undecided | GA91 |
| Matt Hinch | Metropolitan Coalition | Undecided | GA91 |
| Paige Thorson | Metropolitan Coalition | Undecided | GA91 |
| Sara Allen | Metropolitan Coalition | Undecided | GA91 |
| Dane Schumann | Mid-American Carpenters Regional Council | Undecided | GA91 |
| Felicia Hilton | Mid-American Carpenters Regional Council | Undecided | GA91 |
| Christopher Rants | NECA - Iowa (NEC) | Undecided | GA91 |
| Jake Friedrichsen | NECA - Iowa (NEC) | Undecided | GA91 |
| Justin Hupfer | NECA - Iowa (NEC) | Undecided | GA91 |
| Gary Grant | Urban County Coalition | Undecided | GA91 |
| Larry Murphy | Urban County Coalition | Undecided | GA91 |