| Mazie Stilwell | AFSCME Iowa Council 61 | Opposing | GA88 |
| Morgan Miller | AFSCME Iowa Council 61 | Opposing | GA88 |
| Drew Klein | Americans For Prosperity | Supporting | GA88 |
| Tyler Raygor | Americans For Prosperity | Supporting | GA88 |
| Sandra Conlin | Associated Builders & Contractors of Iowa | Undecided | GA88 |
| Keith Saunders | Board of Regents, State of Iowa | Undecided | GA88 |
| Kristin Bauer | Board of Regents, State of Iowa | Undecided | GA88 |
| Mark Braun | Board of Regents, State of Iowa | Undecided | GA88 |
| Mary Braun | Board of Regents, State of Iowa | Undecided | GA88 |
| Dane Schumann | Brain Injury Alliance of Iowa | Opposing | GA88 |
| Maddie Wilcox | Brain Injury Alliance of Iowa | Opposing | GA88 |
| Threase Harms | Brain Injury Alliance of Iowa | Opposing | GA88 |
| Mike Heller | Iowa Academy of Trial Lawyers | Undecided | GA88 |
| Paula Feltner | Iowa Academy of Trial Lawyers | Undecided | GA88 |
| Amy Campbell | Iowa Association of Area Agencies on Aging | Undecided | GA88 |
| Craig Patterson | Iowa Association of Area Agencies on Aging | Undecided | GA88 |
| Kelly Meyers | Iowa Association of Behavior Analysis | Undecided | GA88 |
| Susan Cameron Daemen | Iowa Association of Behavior Analysis | Undecided | GA88 |
| Brad Hartkopf | 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 |
| Amy Campbell | Iowa Association of County Conservation Boards | Undecided | GA88 |
| Craig Patterson | Iowa Association of County Conservation Boards | Undecided | GA88 |
| Brad Epperly | Iowa Association of Electric Cooperatives | Undecided | GA88 |
| Dustin Miller | Iowa Association of Electric Cooperatives | Undecided | GA88 |
| Kevin Condon | Iowa Association of Electric Cooperatives | Undecided | GA88 |
| Doug Struyk | Iowa Association of Nurse Anesthetists | Undecided | GA88 |
| Jennifer Dorman | Iowa Association of Nurse Anesthetists | Undecided | GA88 |
| Jim Carney | Iowa Association of Nurse Anesthetists | Undecided | GA88 |
| Jennifer Kingland | Iowa Association of Realtors | Undecided | GA88 |
| Amy Campbell | Iowa Association of Rural Health Clinics | Undecided | GA88 |
| Craig Patterson | Iowa Association of Rural Health Clinics | Undecided | GA88 |
| Doug Struyk | Iowa Athletic Trainers Society | Undecided | GA88 |
| Jennifer Dorman | Iowa Athletic Trainers Society | Undecided | GA88 |
| Jim Carney | Iowa Athletic Trainers Society | Undecided | GA88 |
| Amy Campbell | Iowa Behavioral Health Association (IBHA) | Undecided | GA88 |
| Craig Patterson | Iowa Behavioral Health Association (IBHA) | Undecided | GA88 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Opposing | GA88 |
| Kelly Meyers | Iowa Chapter of the National Association of Pediatric Nurse Practitioners | Undecided | GA88 |
| Susan Cameron Daemen | Iowa Chapter of the National Association of Pediatric Nurse Practitioners | Undecided | GA88 |
| Jon Murphy | Iowa Dental Hygienists Association | Undecided | GA88 |
| Tom Cope | Iowa Dental Hygienists Association | Undecided | GA88 |
| Amy McCoy | Iowa Dept. of Public Health | Undecided | GA88 |
| Cohl Bultje | Iowa Ethics and Campaign Disclosure Board | Opposing | GA88 |
| Megan Tooker | Iowa Ethics and Campaign Disclosure Board | Opposing | GA88 |
| Charlie Wishman | Iowa Federation of Labor, AFL-CIO | Opposing | GA88 |
| Carolann Jensen | Iowa Finance Authority | Undecided | GA88 |
| Erika Eckley | Iowa Hospital Association | Undecided | GA88 |
| Erin Cubit | Iowa Hospital Association | Undecided | GA88 |
| J. Norris | Iowa Hospital Association | Undecided | GA88 |
| Kim Murphy | Iowa Hospital Association | Undecided | GA88 |
| Maureen Keehnle | Iowa Hospital Association | Undecided | GA88 |
| Karla Fultz McHenry | Iowa Independent Physician Group | Opposing | GA88 |
| Amy Campbell | Iowa Library Association (ILA) | Undecided | GA88 |
| Craig Patterson | Iowa Library Association (ILA) | Undecided | GA88 |
| Sandra Conlin | Iowa Medical Society | Opposing | GA88 |
| Amy Campbell | Iowa Natural Heritage Foundation | Undecided | GA88 |
| Craig Patterson | Iowa Natural Heritage Foundation | Undecided | GA88 |
| Kelly Meyers | Iowa Nurse Practitioners Society | Undecided | GA88 |
| Susan Cameron Daemen | Iowa Nurse Practitioners Society | Undecided | GA88 |
| Gary Ellis | Iowa Optometric Association | Undecided | GA88 |
| Amy Campbell | Iowa Primary Care Association | Undecided | GA88 |
| Craig Patterson | Iowa Primary Care Association | Undecided | GA88 |
| Amy Campbell | Iowa Psychological Association | Undecided | GA88 |
| Craig Patterson | Iowa Psychological Association | Undecided | GA88 |
| Amy Campbell | Iowa Public Transit Association (IPT) | Undecided | GA88 |
| Craig Patterson | Iowa Public Transit Association (IPT) | Undecided | GA88 |
| Jon Murphy | Iowa Society of Anesthesiologists | Undecided | GA88 |
| Tom Cope | Iowa Society of Anesthesiologists | 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 |
| Alexander Cutchey | Iowa Utilities Board | Withdrawn | GA88 |
| Alexander Cutchey | Iowa Utilities Board | Undecided | GA88 |
| Doug Struyk | Iowa Veterinary Medical Association | Undecided | GA88 |
| Jennifer Dorman | Iowa Veterinary Medical Association | Undecided | GA88 |
| Jim Carney | Iowa Veterinary Medical Association | Undecided | GA88 |
| Ernie Adkison | Iowans for Tax Relief | Supporting | GA88 |
| Ernie Adkison | Iowans for Tax Relief | Undecided | GA88 |
| Victoria Sinclair | Iowans for Tax Relief | Supporting | GA88 |
| Victoria Sinclair | Iowans for Tax Relief | Undecided | GA88 |
| Amy Campbell | League of Women Voters of Iowa | Undecided | GA88 |
| Craig Patterson | League of Women Voters of Iowa | Undecided | GA88 |
| Amy Campbell | Loess Hills Alliance | Undecided | GA88 |
| Craig Patterson | Loess Hills Alliance | Undecided | GA88 |
| Amy Campbell | Lutheran Services in IA, Inc. | Undecided | GA88 |
| Craig Patterson | Lutheran Services in IA, Inc. | Undecided | GA88 |
| Amy Campbell | Okoboji Tourism | Undecided | GA88 |
| Craig Patterson | Okoboji Tourism | Undecided | GA88 |
| Eric Goranson | Plumbing Heating & Cooling Contractors of IA | Undecided | GA88 |
| Amy Campbell | Professional Developers of Iowa (PDI) | Undecided | GA88 |
| Craig Patterson | Professional Developers of Iowa (PDI) | Undecided | GA88 |
| Jamie Van Fossen | Public Employment Relations Board (PERB) | Undecided | GA88 |
| Amy Campbell | Travel Federation of Iowa | Undecided | GA88 |
| Craig Patterson | Travel Federation of Iowa | Undecided | GA88 |