| Doug Struyk | Accountants Association of Iowa | Undecided | GA88 |
| Jennifer Dorman | Accountants Association of Iowa | Undecided | GA88 |
| Jim Carney | Accountants Association of Iowa | Undecided | GA88 |
| Drew Klein | Americans For Prosperity | Undecided | GA88 |
| Tyler Raygor | Americans For Prosperity | Undecided | GA88 |
| Brandon Geib | Black Hills Energy | Undecided | GA88 |
| Tim Reilly | Department of Revenue | Undecided | GA88 |
| Kellie Paschke | Iowa Cattlemen's Association | Undecided | GA88 |
| Troy Skinner | Iowa Cattlemen's Association | Undecided | GA88 |
| Dane Schumann | Iowa Farmers Union | Undecided | GA88 |
| Maddie Wilcox | Iowa Farmers Union | Undecided | GA88 |
| Threase Harms | Iowa Farmers Union | Undecided | GA88 |
| Charlie Wishman | Iowa Federation of Labor, AFL-CIO | Opposing | GA88 |
| David Adelman | Iowa Nebraska Farm Equipment Dealers Association | Undecided | GA88 |
| Frank Chiodo | Iowa Nebraska Farm Equipment Dealers Association | Undecided | GA88 |
| Matt Hinch | Iowa Nebraska Farm Equipment Dealers Association | Undecided | GA88 |
| Sara Allen | Iowa Nebraska Farm Equipment Dealers Association | Undecided | GA88 |
| Will Rogers | Iowa Nebraska Farm Equipment Dealers Association | Undecided | GA88 |
| Mike Heller | Iowa Renewable Fuels Association (IRF) | Undecided | GA88 |
| Paula Feltner | Iowa Renewable Fuels Association (IRF) | Undecided | GA88 |
| Brad Epperly | Iowa Society of Certified Public Accountants | Undecided | GA88 |
| Dustin Miller | Iowa Society of Certified Public Accountants | Undecided | GA88 |
| Katie Graham | Iowa Society of Certified Public Accountants | Undecided | GA88 |
| Paula Dierenfeld | Iowa Society of Certified Public Accountants | Undecided | GA88 |
| Doug Struyk | Iowa State Bar Association | Undecided | GA88 |
| Jennifer Dorman | Iowa State Bar Association | Undecided | GA88 |
| Jim Carney | Iowa State Bar Association | Undecided | GA88 |
| Bradley Hudson | Iowa State Education Association | Opposing | GA88 |
| Melissa Peterson | Iowa State Education Association | Opposing | GA88 |
| Christopher Nelson | Kemin Industries | Undecided | GA88 |
| Dane Schumann | Kemin Industries | Undecided | GA88 |
| Maddie Wilcox | Kemin Industries | Undecided | GA88 |
| Threase Harms | Kemin Industries | Undecided | GA88 |