| 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 |
| Brad Epperly | Ames Chamber of Commerce | Undecided | GA89 |
| Dustin Miller | Ames Chamber of Commerce | Opposing | GA89 |
| Dustin Miller | Ames Chamber of Commerce | Undecided | 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 |
| Jon Murphy | City of Cedar Falls | Opposing | GA89 |
| Tom Cope | City of Cedar Falls | 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 |
| Ryan Sempf | Dubuque Area Chamber of Commerce | Undecided | GA89 |
| Steve Firman | Grow Cedar Valley | Opposing | GA89 |
| Brad Hartkopf | Iowa Association of Business and Industry (ABI) | Undecided | GA89 |
| John Davis | Iowa Association of Business and Industry (ABI) | Undecided | GA89 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Undecided | GA89 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | 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 |
| Maggie Smith-Fitzgerald | Iowa Association of Community College Trustees | Undecided | GA89 |
| Matt Fitzgerald | Iowa Association of Community College Trustees | Undecided | GA89 |
| David Adelman | Iowa Association of Independent Colleges and Universities | Undecided | GA89 |
| Frank Chiodo | Iowa Association of Independent Colleges and Universities | Undecided | GA89 |
| Matt Hinch | Iowa Association of Independent Colleges and Universities | Undecided | GA89 |
| Sara Allen | Iowa Association of Independent Colleges and Universities | Undecided | GA89 |
| David Adelman | Iowa Biotechnology Association | Undecided | GA89 |
| Frank Chiodo | Iowa Biotechnology Association | Undecided | GA89 |
| Matt Hinch | Iowa Biotechnology Association | Undecided | GA89 |
| Sara Allen | Iowa Biotechnology Association | Undecided | GA89 |
| Joe Murphy | Iowa Business Council | Opposing | 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 |
| 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 |
| Sandra Conlin | Iowa Medical Society | 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 |
| Jill Altringer | Iowa Poultry Association | Opposing | GA89 |
| Jill Altringer | Iowa Poultry Association | Undecided | GA89 |
| Doug Struyk | Iowa Soybean Association | Opposing | GA89 |
| Jennifer Dorman | Iowa Soybean Association | Opposing | GA89 |
| Jim Carney | Iowa Soybean Association | Opposing | GA89 |
| Michael Dolch | 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 |
| Steve Firman | Personal Interest-Steve Firman | Opposing | GA89 |
| Tammy Kobza | Phyllis Schlafly Eagles of Iowa | Supporting | GA89 |
| Kelli Harrison | UAW Region 4 | Opposing | GA89 |
| Karl Schilling | United Professionals/UE | Opposing | GA89 |