| Mark Stringer | American Civil Liberties Union of Iowa (ACLU-IA) | Opposing | GA89 |
| Pete McRoberts | American Civil Liberties Union of Iowa (ACLU-IA) | Opposing | GA89 |
| Rita Bettis Austen | American Civil Liberties Union of Iowa (ACLU-IA) | Opposing | GA89 |
| Brad Epperly | Ames Chamber of Commerce | Opposing | GA89 |
| Dustin Miller | Ames Chamber of Commerce | Opposing | GA89 |
| Carolann Jensen | Board of Regents, State of Iowa | Opposing | GA89 |
| Jennifer Harbison | Board of Regents, State of Iowa | Opposing | GA89 |
| Keith Saunders | Board of Regents, State of Iowa | Opposing | GA89 |
| Mary Braun | Board of Regents, State of Iowa | Opposing | GA89 |
| Barbra Solberg | Cedar Rapids Metro Economic Alliance | Opposing | GA89 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Opposing | GA89 |
| Drew Kamp | Council Bluffs Chamber of Commerce | Opposing | GA89 |
| Karla Fultz McHenry | Delta Dental of Iowa | Undecided | GA89 |
| Lynh Patterson | Delta Dental of Iowa | Undecided | GA89 |
| Ryan Sempf | Dubuque Area Chamber of Commerce | Opposing | GA89 |
| Steve Firman | Grow Cedar Valley | Opposing | GA89 |
| Teresa Bomhoff | IA Mental Health Planning Council | Opposing | GA89 |
| David Palmer | Iowa Association of Community College Trustees | Undecided | GA89 |
| Emily Shields | Iowa Association of Community College Trustees | Undecided | GA89 |
| Jeff Smith | Iowa Association of Community College Trustees | Undecided | GA89 |
| Jerry Fitzgerald | Iowa Association of Community College Trustees | Undecided | GA89 |
| Laurie Wolf | Iowa Association of Community College Trustees | Undecided | GA89 |
| Maggie Smith-Fitzgerald | Iowa Association of Community College Trustees | Undecided | GA89 |
| Matt Fitzgerald | Iowa Association of Community College Trustees | Undecided | GA89 |
| Kellie Paschke | Iowa Cattlemen's Association | Opposing | GA89 |
| Kelly Meyers | Iowa Cattlemen's Association | Opposing | GA89 |
| Logan Murray | Iowa Cattlemen's Association | Opposing | GA89 |
| Troy Skinner | Iowa Cattlemen's Association | Opposing | GA89 |
| James Kersten | Iowa Central Community College | Undecided | GA89 |
| Brad Epperly | Iowa Chamber Alliance | Opposing | GA89 |
| Dustin Miller | Iowa Chamber Alliance | Opposing | GA89 |
| Jennifer Banta | Iowa City Area Chamber of Commerce | Opposing | GA89 |
| Angela Davis | Iowa Environmental Council | Opposing | GA89 |
| Peter Hird | Iowa Federation of Labor, AFL-CIO | Opposing | GA89 |
| Bobby Martens | Iowa Institute for Cooperatives | Opposing | GA89 |
| Katie Hall | Iowa Institute for Cooperatives | Opposing | GA89 |
| Mike St. Clair | Iowa Institute for Cooperatives | Opposing | GA89 |
| Frederick Haskins | Iowa Insurance Associates | Opposing | GA89 |
| Casey Ficek | Iowa Pharmacy Association | Opposing | GA89 |
| Drew Mogler | Iowa Pork Producers Association | Opposing | GA89 |
| Jeff Smith | Iowa Pork Producers Association | Opposing | GA89 |
| Jerry Fitzgerald | Iowa Pork Producers Association | Opposing | GA89 |
| Maggie Smith-Fitzgerald | Iowa Pork Producers Association | Opposing | GA89 |
| Matt Fitzgerald | Iowa Pork Producers Association | Opposing | GA89 |
| Amy Campbell | Iowa Psychological Association | Opposing | GA89 |
| Craig Patterson | Iowa Psychological Association | Opposing | GA89 |
| Doug Struyk | Iowa Soybean Association | Opposing | GA89 |
| Jennifer Dorman | Iowa Soybean Association | Opposing | GA89 |
| Jim Carney | Iowa Soybean Association | Opposing | GA89 |
| Melissa Peterson | Iowa State Education Association | Opposing | GA89 |
| Morgan Miller | Iowa State Education Association | Opposing | GA89 |
| Doug Struyk | Iowa Veterinary Medical Association | Opposing | GA89 |
| Jennifer Dorman | Iowa Veterinary Medical Association | Opposing | GA89 |
| Jim Carney | Iowa Veterinary Medical Association | Opposing | GA89 |
| Frederick Haskins | Patterson Law Firm LLP | Opposing | GA89 |
| Amy Campbell | Professional Developers of Iowa (PDI) | Opposing | GA89 |
| Craig Patterson | Professional Developers of Iowa (PDI) | Opposing | GA89 |
| Kelli Harrison | UAW Region 4 | Opposing | GA89 |