| Mark Joyce | Boyd Gaming & Dubuque Diamond Jo & Diamond Jo Worth | Undecided | GA90 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA90 |
| Gary Grant | City of Cedar Rapids | Undecided | GA90 |
| Larry Murphy | City of Cedar Rapids | Undecided | GA90 |
| Clara Wulfsen | Department of Revenue | Undecided | GA90 |
| Robert Weiser | Horsemen's Benevolent and Protective Association (IHBPA) | Undecided | GA90 |
| Amy Campbell | Iowa Behavioral Health Association (IBHA) | Undecided | GA90 |
| Craig Patterson | Iowa Behavioral Health Association (IBHA) | Undecided | GA90 |
| Larry Murphy | Iowa Catholic Conference | Undecided | GA90 |
| Tom Chapman | Iowa Catholic Conference | Undecided | GA90 |
| David Adelman | Iowa Community Foundations | Supporting | GA90 |
| Frank Chiodo | Iowa Community Foundations | Supporting | GA90 |
| Lillie Brady | Iowa Community Foundations | Supporting | GA90 |
| Matt Hinch | Iowa Community Foundations | Supporting | GA90 |
| Sara Allen | Iowa Community Foundations | Supporting | GA90 |
| Deanna Triplett | Iowa Economic Development Authority | Undecided | GA90 |
| Wes Ehrecke | Iowa Gaming Association | Undecided | GA90 |
| Brad Epperly | Iowa Society of Certified Public Accountants | Undecided | GA90 |
| Dustin Miller | Iowa Society of Certified Public Accountants | Undecided | GA90 |
| Robert Weiser | Iowa Thoroughbred Breeders and Owners Association | Undecided | GA90 |
| Craig Walter | Iowa West Racing Association | Supporting | GA90 |
| Kate Walton | Iowa West Racing Association | Supporting | GA90 |
| Madeleine Bradley | Iowa West Racing Association | Supporting | GA90 |
| Matt Eide | Iowa West Racing Association | Supporting | GA90 |
| John Hall | Marshalltown Area Chamber of Commerce | Supporting | GA90 |
| Kellie Paschke | Prairie Meadows Racetrack and Casino | Supporting | GA90 |
| Kellie Paschke | Prairie Meadows Racetrack and Casino | Undecided | GA90 |
| Kelly Meyers | Prairie Meadows Racetrack and Casino | Supporting | GA90 |
| Kelly Meyers | Prairie Meadows Racetrack and Casino | Undecided | GA90 |
| Troy Skinner | Prairie Meadows Racetrack and Casino | Supporting | GA90 |
| Troy Skinner | Prairie Meadows Racetrack and Casino | Undecided | GA90 |
| Amy Campbell | Professional Developers of Iowa (PDI) | Undecided | GA90 |
| Craig Patterson | Professional Developers of Iowa (PDI) | Undecided | GA90 |
| Chuck Hurley | The Family Leader | Undecided | GA90 |
| Danny Carroll | The Family Leader | Undecided | GA90 |
| Rebekah Oleson | The Family Leader | Undecided | GA90 |
| Ryan Benn | The Family Leader | Undecided | GA90 |
| Chuck Hurley | The Family Leader Foundation | Undecided | GA90 |
| Danny Carroll | The Family Leader Foundation | Undecided | GA90 |
| Rebekah Oleson | The Family Leader Foundation | Undecided | GA90 |
| Ryan Benn | The Family Leader Foundation | Undecided | GA90 |