| Melissa Speed | AFSCME Iowa Council 61 | Opposing | GA90 |
| Mark Stringer | American Civil Liberties Union of Iowa (ACLU-IA) | Opposing | GA90 |
| Pete McRoberts | American Civil Liberties Union of Iowa (ACLU-IA) | Opposing | GA90 |
| David Scott | American Council of Engineering Companies | Undecided | GA90 |
| Chelsea Hoye | American Massage Therapy Association (AMTA) | Opposing | GA90 |
| Chelsea Hoye | American Massage Therapy Association (AMTA) | Undecided | GA90 |
| Nick Laning | American Massage Therapy Association (AMTA) | Opposing | GA90 |
| Nick Laning | American Massage Therapy Association (AMTA) | Undecided | GA90 |
| Threase Harms | American Massage Therapy Association (AMTA) | Opposing | GA90 |
| Threase Harms | American Massage Therapy Association (AMTA) | Undecided | GA90 |
| Tyler Raygor | Americans For Prosperity | Supporting | GA90 |
| Sandra Conlin | Associated Builders & Contractors of Iowa | Supporting | GA90 |
| Chaney Yeast | Blank Childrens Hospital | Undecided | GA90 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA90 |
| Gary Grant | City of Cedar Rapids | Undecided | GA90 |
| Larry Murphy | City of Cedar Rapids | Undecided | GA90 |
| Joseph Buffington | County Planning and Zoning Officials of Iowa | Undecided | GA90 |
| Connie Ryan | Interfaith Alliance of Iowa Action Fund | Opposing | GA90 |
| Mike Heller | Iowa Academy of Trial Lawyers | Undecided | GA90 |
| Robert Cook | Iowa Atheists and Freethinkers | Opposing | GA90 |
| Carolann Jensen | Iowa Board of Regents | Undecided | GA90 |
| Jennifer Harbison | Iowa Board of Regents | Undecided | GA90 |
| Jillian Carlson | Iowa Board of Regents | Undecided | GA90 |
| Keith Saunders | Iowa Board of Regents | Undecided | GA90 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Opposing | GA90 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Undecided | GA90 |
| Angela Caulk | Iowa Chapter, American Institute of Architects | Opposing | GA90 |
| Christian Frankl | Iowa Chapter, American Institute of Architects | Opposing | GA90 |
| Logan Murray | Iowa Chapter, American Institute of Architects | Opposing | GA90 |
| Noah Tabor | Iowa Chapter, American Institute of Architects | Opposing | GA90 |
| Laura Hessburg | Iowa Coalition Against Domestic Violence | Opposing | GA90 |
| Sara Throener | Iowa Department of Inspections, Appeals, and Licensing | Undecided | GA90 |
| Todd Coffelt | Iowa Dept. of Natural Resources | Undecided | GA90 |
| Brooke Lovelace | Iowa Developmental Disabilities Council | Undecided | GA90 |
| David Scott | Iowa Engineering Society | Undecided | GA90 |
| Chelsea Hoye | Iowa Environmental Council | Opposing | GA90 |
| Threase Harms | Iowa Environmental Council | Opposing | GA90 |
| Taylor McDonald | Iowa Ethics and Campaign Disclosure Board | Undecided | GA90 |
| Zach Goodrich | Iowa Ethics and Campaign Disclosure Board | Undecided | GA90 |
| Peter Hird | Iowa Federation of Labor, AFL-CIO | Opposing | GA90 |
| Nichole Hansen | Iowa Finance Authority | Undecided | GA90 |
| Amber Shanahan-Fricke | Iowa Judicial Branch - Supreme Court | Undecided | GA90 |
| Caitlin Jarzen | Iowa Judicial Branch - Supreme Court | Undecided | GA90 |
| Megan Tooker | Iowa Judicial Branch - Supreme Court | Undecided | GA90 |
| Chelsea Hoye | Iowa Occupational Therapy Association | Undecided | GA90 |
| Nick Laning | Iowa Occupational Therapy Association | Undecided | GA90 |
| Threase Harms | Iowa Occupational Therapy Association | Undecided | GA90 |
| Erika Eckley | Iowa Public Information Board | Undecided | GA90 |
| Nick Laning | Iowa Sleep Society | Undecided | GA90 |
| Threase Harms | Iowa Sleep Society | Undecided | GA90 |
| Jamie Cashman | Iowa State Association of Counties | Undecided | GA90 |
| Kristi Harshbarger | Iowa State Association of Counties | Undecided | GA90 |
| Lucas Beenken | Iowa State Association of Counties | Undecided | GA90 |
| William Peterson | Iowa State Association of Counties | Undecided | GA90 |
| Louis Vander Streek | Iowa Utilities Commission | Undecided | GA90 |
| Maison Bleam | Iowa Utilities Commission | Undecided | GA90 |
| Kellie Paschke | Justice Not Politics | Opposing | GA90 |
| Kelly Meyers | Justice Not Politics | Opposing | GA90 |
| Amy Campbell | League of Women Voters of Iowa | Opposing | GA90 |
| Chloe Gayer | League of Women Voters of Iowa | Opposing | GA90 |
| Craig Patterson | League of Women Voters of Iowa | Opposing | GA90 |
| Gary Grant | Linn County Board of Supervisors | Undecided | GA90 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA90 |
| Christopher Rants | Mechanical Contractors Association of Iowa (MCAI) | Undecided | GA90 |
| Justin Hupfer | Mechanical Contractors Association of Iowa (MCAI) | Undecided | GA90 |
| Christopher Rants | NECA - Iowa (NEC) | Undecided | GA90 |
| John Cacciatore | NECA - Iowa (NEC) | Undecided | GA90 |
| Justin Hupfer | NECA - Iowa (NEC) | Undecided | GA90 |
| Denise Rathman | National Association of Social Workers, Iowa Chapter | Opposing | GA90 |
| Sarah High | National Association of Social Workers, Iowa Chapter | Opposing | GA90 |
| Courtney Reyes | One Iowa | Opposing | GA90 |
| Keenan Crow | One Iowa | Opposing | GA90 |
| Courtney Reyes | One Iowa Action | Opposing | GA90 |
| Keenan Crow | One Iowa Action | Opposing | GA90 |
| Andy Conlin | Opportunity Solutions Project | Supporting | GA90 |
| Dennis Tibben | Opportunity Solutions Project | Supporting | GA90 |
| Kileen Lindgren | Pacific Legal Foundation | Supporting | GA90 |
| Mazie Stilwell | Planned Parenthood Advocates of Iowa | Opposing | GA90 |
| Amy Campbell | Polk County - Board of Supervisors | Undecided | GA90 |
| Craig Patterson | Polk County - Board of Supervisors | Undecided | GA90 |
| Chuck Hurley | The Family Leader | Supporting | GA90 |
| Danny Carroll | The Family Leader | Supporting | GA90 |
| Ryan Benn | The Family Leader | Supporting | GA90 |
| Chuck Hurley | The Family Leader Foundation | Supporting | GA90 |
| Danny Carroll | The Family Leader Foundation | Supporting | GA90 |
| Ryan Benn | The Family Leader Foundation | Supporting | GA90 |
| Gary Grant | Urban County Coalition | Undecided | GA90 |
| Larry Murphy | Urban County Coalition | Undecided | GA90 |