| Scott Newhard | Associated General Contractors of Iowa | Supporting | GA90 |
| Barbra Solberg | Cedar Rapids Metro Economic Alliance | Undecided | GA90 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA90 |
| Drew Kamp | Council Bluffs Chamber of Commerce | Undecided | GA90 |
| Bill Dix | Fareway Stores, Inc. | Supporting | GA90 |
| Chip Baltimore | Fareway Stores, Inc. | Supporting | GA90 |
| David Adelman | Hubbell Realty Company | Supporting | GA90 |
| Frank Chiodo | Hubbell Realty Company | Supporting | GA90 |
| Lillie Brady | Hubbell Realty Company | Supporting | GA90 |
| Matt Hinch | Hubbell Realty Company | Supporting | GA90 |
| Sara Allen | Hubbell Realty Company | Supporting | GA90 |
| Brad Epperly | Iowa Automobile Dealers Association | Supporting | GA90 |
| Dustin Miller | Iowa Automobile Dealers Association | Supporting | GA90 |
| Mike Rozenboom | Iowa Bankers Association | Supporting | GA90 |
| Sharon Presnall | Iowa Bankers Association | Supporting | GA90 |
| Brad Epperly | Iowa Chamber Alliance | Undecided | GA90 |
| Dustin Miller | Iowa Chamber Alliance | Undecided | GA90 |
| Brad Epperly | Iowa Grocery Industry Association | Supporting | GA90 |
| Brad Epperly | Iowa Grocery Industry Association | Undecided | GA90 |
| Dustin Miller | Iowa Grocery Industry Association | Supporting | GA90 |
| Dustin Miller | Iowa Grocery Industry Association | Undecided | GA90 |
| David Adelman | Iowa Real Estate Developers Association | Supporting | GA90 |
| Frank Chiodo | Iowa Real Estate Developers Association | Supporting | GA90 |
| Lillie Brady | Iowa Real Estate Developers Association | Supporting | GA90 |
| Matt Hinch | Iowa Real Estate Developers Association | Supporting | GA90 |
| Sara Allen | Iowa Real Estate Developers Association | Supporting | GA90 |
| Matt McKinney | Iowa Select Farms, L.L.P. | Supporting | GA90 |
| RG Schwarm | Iowa Select Farms, L.L.P. | Supporting | GA90 |
| Brad Epperly | Iowa Society of Certified Public Accountants | Undecided | GA90 |
| Dustin Miller | Iowa Society of Certified Public Accountants | Undecided | GA90 |
| Tom Sands | Iowa Taxpayers Association | Supporting | GA90 |
| John Hall | Marshalltown Area Chamber of Commerce | Undecided | GA90 |
| Cody Carlson | National Federation of Independent Business (NFIB /IA) | Supporting | GA90 |
| Sydney Gangestad | The Iowa Academy of Trust and Estate Counsel | Supporting | GA90 |
| Tim Coonan | The Iowa Academy of Trust and Estate Counsel | Supporting | GA90 |