| David Scott | American Council of Engineering Companies | Opposing | GA88 |
| David Scott | American Water Works Association | Undecided | GA88 |
| Scott Newhard | Associated General Contractors of Iowa | Opposing | GA88 |
| Amy Campbell | Iowa Association of Area Agencies on Aging | Undecided | GA88 |
| Craig Patterson | Iowa Association of Area Agencies on Aging | Undecided | GA88 |
| Brad Hartkopf | Iowa Association of Business and Industry (ABI) | Opposing | GA88 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Opposing | GA88 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Opposing | GA88 |
| Amy Campbell | Iowa Association of Rural Health Clinics | Undecided | GA88 |
| Craig Patterson | Iowa Association of Rural Health Clinics | Undecided | GA88 |
| Brad Epperly | Iowa Chapter, American Institute of Architects | Opposing | GA88 |
| Dustin Miller | Iowa Chapter, American Institute of Architects | Opposing | GA88 |
| Katie Graham | Iowa Chapter, American Institute of Architects | Opposing | GA88 |
| Paula Dierenfeld | Iowa Chapter, American Institute of Architects | Opposing | GA88 |
| Amy Campbell | Iowa Coalition Against Sexual Assault | Undecided | GA88 |
| Craig Patterson | Iowa Coalition Against Sexual Assault | Undecided | GA88 |
| Dane Schumann | Iowa Emergency Management Association | Undecided | GA88 |
| Maddie Wilcox | Iowa Emergency Management Association | Undecided | GA88 |
| Threase Harms | Iowa Emergency Management Association | Undecided | GA88 |
| David Scott | Iowa Engineering Society | Opposing | GA88 |
| David Scott | Iowa Good Roads Association | Opposing | GA88 |
| Amy Campbell | Iowa Library Association (ILA) | Undecided | GA88 |
| Craig Patterson | Iowa Library Association (ILA) | Undecided | GA88 |
| David Scott | Iowa Motor Truck Association | Opposing | GA88 |
| Amy Campbell | Iowa Primary Care Association | Undecided | GA88 |
| Craig Patterson | Iowa Primary Care Association | Undecided | GA88 |
| Amy Campbell | Lutheran Services in IA, Inc. | Undecided | GA88 |
| Craig Patterson | Lutheran Services in IA, Inc. | Undecided | GA88 |
| Doug Struyk | RELX Inc. | Opposing | GA88 |
| Jennifer Dorman | RELX Inc. | Opposing | GA88 |
| Jim Carney | RELX Inc. | Opposing | GA88 |
| Amy Campbell | SafeNetRX | Undecided | GA88 |
| David Scott | Society of Land Surveyors of Iowa | Opposing | GA88 |