| Mazie Stilwell | AFSCME Iowa Council 61 | Supporting | GA88 |
| Morgan Miller | AFSCME Iowa Council 61 | Supporting | GA88 |
| Daniel Zeno | American Civil Liberties Union of Iowa (ACLU-IA) | Supporting | GA88 |
| Mark Stringer | American Civil Liberties Union of Iowa (ACLU-IA) | Supporting | GA88 |
| Pete McRoberts | American Civil Liberties Union of Iowa (ACLU-IA) | Supporting | GA88 |
| Rita Bettis Austen | American Civil Liberties Union of Iowa (ACLU-IA) | Supporting | GA88 |
| Brad Epperly | BNSF Railway Co. | Undecided | GA88 |
| Dustin Miller | BNSF Railway Co. | Undecided | GA88 |
| Katie Graham | BNSF Railway Co. | Undecided | GA88 |
| Paula Dierenfeld | BNSF Railway Co. | 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 |
| Mike Heller | Father Flanagans Boys Home | Supporting | GA88 |
| Paula Feltner | Father Flanagans Boys Home | Supporting | GA88 |
| Brad Epperly | Helena Agri-Enterprises, LLC | Undecided | GA88 |
| Dustin Miller | Helena Agri-Enterprises, LLC | Undecided | GA88 |
| Katie Graham | Helena Agri-Enterprises, LLC | Undecided | GA88 |
| Paula Dierenfeld | Helena Agri-Enterprises, LLC | Undecided | GA88 |
| Michael McCarthy | Iowa Alliance For Retired Americans | Supporting | GA88 |
| Brad Hartkopf | Iowa Association of Business and Industry (ABI) | Undecided | GA88 |
| Drew Wynes | 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 |
| Brad Epperly | Iowa Automobile Dealers Association | Undecided | GA88 |
| Dustin Miller | Iowa Automobile Dealers Association | Undecided | GA88 |
| Katie Graham | Iowa Automobile Dealers Association | Undecided | GA88 |
| Paula Dierenfeld | Iowa Automobile Dealers Association | Undecided | GA88 |
| Larry Murphy | Iowa Catholic Conference | Supporting | GA88 |
| Meghan Malloy | Iowa Catholic Conference | Supporting | GA88 |
| Tom Chapman | Iowa Catholic Conference | Supporting | GA88 |
| Laura Hessburg | Iowa Coalition Against Domestic Violence | Supporting | GA88 |
| Brad Epperly | Iowa Collectors Association, Inc. | Undecided | GA88 |
| Dustin Miller | Iowa Collectors Association, Inc. | Undecided | GA88 |
| Katie Graham | Iowa Collectors Association, Inc. | Undecided | GA88 |
| Paula Dierenfeld | Iowa Collectors Association, Inc. | Undecided | GA88 |
| Charlie Wishman | Iowa Federation of Labor, AFL-CIO | Supporting | GA88 |
| Julianne Frosolone | Iowa Federation of Labor, AFL-CIO | Supporting | GA88 |
| Brad Epperly | Iowa Grocery Industry Association | Undecided | GA88 |
| Dustin Miller | Iowa Grocery Industry Association | Undecided | GA88 |
| Katie Graham | Iowa Grocery Industry Association | Undecided | GA88 |
| Paula Dierenfeld | Iowa Grocery Industry Association | Undecided | GA88 |
| Damian Thompson | Iowa Safe Schools | Supporting | GA88 |
| Nate Monson | Iowa Safe Schools | Supporting | 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 | Supporting | GA88 |
| Melissa Peterson | Iowa State Education Association | Supporting | GA88 |
| Amy Campbell | League of Women Voters of Iowa | Supporting | GA88 |
| Craig Patterson | League of Women Voters of Iowa | Supporting | GA88 |
| Doug Struyk | Meredith Corporation | Undecided | GA88 |
| Jennifer Dorman | Meredith Corporation | Undecided | GA88 |
| Jim Carney | Meredith Corporation | Undecided | GA88 |
| Brad Epperly | Monsanto Company | Undecided | GA88 |
| Dustin Miller | Monsanto Company | Undecided | GA88 |
| Katie Graham | Monsanto Company | Undecided | GA88 |
| Cody Carlson | National Federation of Independent Business (NFIB /IA) | Undecided | GA88 |
| Keenan Crow | One Iowa Action | Supporting | GA88 |
| Jamie Burch | Planned Parenthood Advocates of Iowa | Supporting | GA88 |
| Jamie Burch | Planned Parenthood North Central States | Supporting | GA88 |
| Jim Romar | Teamsters Local 238 | Supporting | GA88 |
| Angie Long | The Family Leader | Supporting | GA88 |
| Angie Long | The Family Leader | Undecided | GA88 |
| Chuck Hurley | The Family Leader | Supporting | GA88 |
| Chuck Hurley | The Family Leader | Undecided | GA88 |
| Daniel Sunne | The Family Leader | Supporting | GA88 |
| Daniel Sunne | The Family Leader | Undecided | GA88 |
| Danny Carroll | The Family Leader | Supporting | GA88 |
| Danny Carroll | The Family Leader | Undecided | GA88 |
| Angie Long | The Family Leader Foundation | Supporting | GA88 |
| Angie Long | The Family Leader Foundation | Undecided | GA88 |
| Chuck Hurley | The Family Leader Foundation | Supporting | GA88 |
| Chuck Hurley | The Family Leader Foundation | Undecided | GA88 |
| Daniel Sunne | The Family Leader Foundation | Supporting | GA88 |
| Daniel Sunne | The Family Leader Foundation | Undecided | GA88 |
| Danny Carroll | The Family Leader Foundation | Supporting | GA88 |
| Danny Carroll | The Family Leader Foundation | Undecided | GA88 |
| Greg Baker | The Family Leader Foundation | Supporting | GA88 |