| Melissa Speed | AFSCME Iowa Council 61 | Opposing | GA90 |
| Sandra Conlin | American Federation for Children | Supporting | GA90 |
| Tyler Raygor | Americans For Prosperity | Supporting | GA90 |
| Kate Walton | Area Education Agencies of Iowa | Opposing | GA90 |
| Madeleine Bradley | Area Education Agencies of Iowa | Opposing | GA90 |
| Matt Eide | Area Education Agencies of Iowa | Opposing | GA90 |
| Kate Walton | Autism Speaks | Opposing | GA90 |
| Madeleine Bradley | Autism Speaks | Opposing | GA90 |
| Matt Eide | Autism Speaks | Opposing | GA90 |
| Chaney Yeast | Blank Childrens Hospital | Undecided | GA90 |
| Chelsea Hoye | Brain Injury Alliance of Iowa | Undecided | GA90 |
| Lindsey Herazy | Brain Injury Alliance of Iowa | Undecided | GA90 |
| Nick Laning | Brain Injury Alliance of Iowa | Undecided | GA90 |
| Threase Harms | Brain Injury Alliance of Iowa | Undecided | GA90 |
| Sydney Gangestad | CHILDSERVE | Undecided | GA90 |
| Tim Coonan | CHILDSERVE | Undecided | GA90 |
| Gary Grant | City of Cedar Rapids | Undecided | GA90 |
| Larry Murphy | City of Cedar Rapids | Undecided | GA90 |
| Mike Owen | Common Good Iowa | Opposing | GA90 |
| Sean Finn | Common Good Iowa | Opposing | GA90 |
| Sheila Hansen | Common Good Iowa | Opposing | GA90 |
| Catherine Johnson | Disability Rights Iowa | Opposing | GA90 |
| Chelsea Hoye | Easterseals Iowa | Undecided | GA90 |
| Lindsey Herazy | Easterseals Iowa | Undecided | GA90 |
| Nick Laning | Easterseals Iowa | Undecided | GA90 |
| Threase Harms | Easterseals Iowa | Undecided | GA90 |
| Wendy Abrahamson | Episcopal Diocese of Iowa | Opposing | GA90 |
| Molly Severn | Governor's Office | Supporting | GA90 |
| Connie Ryan | Interfaith Alliance of Iowa Action Fund | Opposing | GA90 |
| Andrea Dencklau | Iowa ACEs 360 | Undecided | GA90 |
| Lisa Cushatt | Iowa ACEs 360 | Undecided | GA90 |
| MaryNelle Trefz | Iowa ACEs 360 | Undecided | GA90 |
| Larry Murphy | Iowa Alliance for Arts Education | Undecided | GA90 |
| Eric Goranson | Iowa Association of Christian Schools | Undecided | GA90 |
| Emily Shields | Iowa Association of Community College Trustees | Undecided | GA90 |
| Jeff Smith | Iowa Association of Community College Trustees | Undecided | GA90 |
| Maggie Smith-Fitzgerald | Iowa Association of Community College Trustees | Undecided | GA90 |
| Matt Fitzgerald | Iowa Association of Community College Trustees | Undecided | GA90 |
| Emily Piper | Iowa Association of School Boards | Opposing | GA90 |
| Michelle Johnson | Iowa Association of School Boards | Opposing | GA90 |
| Jason Benell | Iowa Atheists and Freethinkers | Opposing | 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 |
| Larry Murphy | Iowa Catholic Conference | Opposing | GA90 |
| Tom Chapman | Iowa Catholic Conference | Opposing | GA90 |
| Kady Reese | Iowa Chapter-American Academy of Pediatrics | Opposing | GA90 |
| Matthew Covington | Iowa Citizens for Community Improvement Action Fund | Opposing | GA90 |
| Amy Campbell | Iowa Coalition Against Sexual Assault | Opposing | GA90 |
| Chloe Gayer | Iowa Coalition Against Sexual Assault | Opposing | GA90 |
| Craig Patterson | Iowa Coalition Against Sexual Assault | Opposing | GA90 |
| Eric St Clair | Iowa Department of Education | Supporting | GA90 |
| Carlyn Crowe | Iowa Developmental Disabilities Council | Opposing | GA90 |
| Carlyn Crowe | Iowa Developmental Disabilities Council | Undecided | GA90 |
| Jeff Pitts | Iowa Faith and Freedom Coalition | Undecided | GA90 |
| Peter Hird | Iowa Federation of Labor, AFL-CIO | Opposing | GA90 |
| Andy Conlin | Iowa Manufactured Housing Association | Supporting | GA90 |
| Dennis Tibben | Iowa Manufactured Housing Association | Supporting | GA90 |
| Chelsea Hoye | Iowa Occupational Therapy Association | Opposing | GA90 |
| Lindsey Herazy | Iowa Occupational Therapy Association | Opposing | GA90 |
| Nick Laning | Iowa Occupational Therapy Association | Opposing | GA90 |
| Threase Harms | Iowa Occupational Therapy Association | Opposing | GA90 |
| Larry Murphy | Iowa Police Chief Association (FKA Iowa Police Executive Forum) | Undecided | GA90 |
| Becky Tayler | Iowa Safe Schools | Opposing | GA90 |
| Damian Thompson | Iowa Safe Schools | Opposing | GA90 |
| Jefferson Fink | Iowa School Counselors Association | Opposing | GA90 |
| Jim Obradovich | Iowa School Counselors Association | Opposing | GA90 |
| Victoria Sinclair | Iowa School Counselors Association | Opposing | GA90 |
| Jefferson Fink | Iowa School Psychologists Association | Opposing | GA90 |
| Jim Obradovich | Iowa School Psychologists Association | Opposing | GA90 |
| Victoria Sinclair | Iowa School Psychologists Association | Opposing | GA90 |
| Jefferson Fink | Iowa School Social Workers Association | Opposing | GA90 |
| Jim Obradovich | Iowa School Social Workers Association | Opposing | GA90 |
| Victoria Sinclair | Iowa School Social Workers Association | Opposing | GA90 |
| Kate Walton | Iowa Speech Language Hearing Association | Opposing | GA90 |
| Madeleine Bradley | Iowa Speech Language Hearing Association | Opposing | GA90 |
| Matt Eide | Iowa Speech Language Hearing Association | Opposing | GA90 |
| Kellie Paschke | Iowa State Education Association | Opposing | GA90 |
| Kelly Meyers | Iowa State Education Association | Opposing | GA90 |
| Melissa Peterson | Iowa State Education Association | Opposing | GA90 |
| Morgan Miller | Iowa State Education Association | Opposing | GA90 |
| Mike Heller | Iowa Talented and Gifted Association | Opposing | GA90 |
| Andy Conlin | Iowans for Tax Relief | Supporting | GA90 |
| Chris Hagenow | Iowans for Tax Relief | Supporting | GA90 |
| Jake Highfill | Iowans for Tax Relief | Supporting | GA90 |
| Tony Phillips | Iowans for Tax Relief | Supporting | 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 |
| Gary Grant | MH/DS of East Central Region | Undecided | GA90 |
| Larry Murphy | MH/DS of East Central Region | Undecided | GA90 |
| Jennifer Ulie | Mensana Wellness Solutions | Opposing | GA90 |
| Sydney Gangestad | Mindspring Mental Health Alliance | Undecided | GA90 |
| Tim Coonan | Mindspring Mental Health Alliance | Undecided | GA90 |
| John Cacciatore | National Alliance on Mental Illness - Iowa | Undecided | GA90 |
| Lon Anderson | National Alliance on Mental Illness - Iowa | 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 |
| Denise Bubeck | Personal Interest-Denise Bubeck | Supporting | GA90 |
| Nathaniel Arnold | Professional Educators of Iowa | Opposing | GA90 |
| Dave Daughton | Rural School Advocates of Iowa | Opposing | GA90 |
| Margaret Buckton | Rural School Advocates of Iowa | Opposing | GA90 |
| Dave Daughton | School Administrators of Iowa | Opposing | GA90 |
| Kelli Harrison | UAW Region 4 | Opposing | GA90 |
| Gary Grant | Urban County Coalition | Undecided | GA90 |
| Larry Murphy | Urban County Coalition | Undecided | GA90 |
| Margaret Buckton | Urban Education Network of Iowa | Undecided | GA90 |
| Andy Conlin | Yes. Every Kid. | Supporting | GA90 |
| Dennis Tibben | Yes. Every Kid. | Supporting | GA90 |