| Dane Schumann | Des Moines Water Works | Undecided | GA88 |
| Maddie Wilcox | Des Moines Water Works | Undecided | GA88 |
| Threase Harms | Des Moines Water Works | Undecided | GA88 |
| Bob Rafferty | Electronic Services System | Undecided | GA88 |
| Rachel Ong | Electronic Services System | Undecided | GA88 |
| Jay Iverson | Home Builders Association of Iowa | Supporting | GA88 |
| Brad Hartkopf | Iowa Association of Business and Industry (ABI) | Undecided | GA88 |
| Drew Wynes | Iowa Association of Business and Industry (ABI) | Undecided | GA88 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Undecided | GA88 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Undecided | GA88 |
| Jennifer Kingland | Iowa Association of Realtors | Supporting | GA88 |
| Robert Hartwig | Iowa Bankers Association | Supporting | GA88 |
| Sharon Presnall | Iowa Bankers Association | Supporting | GA88 |
| Robert Hartwig | Iowa Bankers Mortgage Corp. | Supporting | GA88 |
| Sharon Presnall | Iowa Bankers Mortgage Corp. | Supporting | GA88 |
| Chad Airhart | Iowa County Recorders Association | Undecided | GA88 |
| Megan Clyman | Iowa County Recorders Association | Undecided | GA88 |
| Dane Schumann | Iowa Environmental Council | Opposing | GA88 |
| Dane Schumann | Iowa Environmental Council | Undecided | GA88 |
| Maddie Wilcox | Iowa Environmental Council | Opposing | GA88 |
| Maddie Wilcox | Iowa Environmental Council | Undecided | GA88 |
| Threase Harms | Iowa Environmental Council | Opposing | GA88 |
| Threase Harms | Iowa Environmental Council | Undecided | GA88 |
| Eric Bradley | Iowa Environmental Health Association | Opposing | GA88 |
| Jim Obradovich | Iowa Environmental Health Association | Opposing | GA88 |
| Pete McRoberts | Iowa Environmental Health Association | Opposing | GA88 |
| Robert Mulqueen | Iowa Environmental Health Association | Opposing | GA88 |
| Dane Schumann | Iowa Farmers Union | Undecided | GA88 |
| Maddie Wilcox | Iowa Farmers Union | Undecided | GA88 |
| Threase Harms | Iowa Farmers Union | Undecided | GA88 |
| Katie Hall | Iowa Land Title Association | Supporting | GA88 |
| Mike St. Clair | Iowa Land Title Association | Supporting | GA88 |
| Jamie Cashman | Iowa State Association of Counties | Opposing | GA88 |
| Kristi Harshbarger | Iowa State Association of Counties | Opposing | GA88 |
| Lucas Beenken | Iowa State Association of Counties | Opposing | GA88 |
| William Peterson | Iowa State Association of Counties | Opposing | 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 |
| Amy Campbell | Professional Developers of Iowa (PDI) | Undecided | GA88 |
| Craig Patterson | Professional Developers of Iowa (PDI) | Undecided | GA88 |