| Daniel Zeno | American Civil Liberties Union of Iowa (ACLU-IA) | Opposing | GA88 |
| Mark Stringer | American Civil Liberties Union of Iowa (ACLU-IA) | Opposing | GA88 |
| Pete McRoberts | American Civil Liberties Union of Iowa (ACLU-IA) | Opposing | GA88 |
| Erica Johnson | American Friends Service Committee Iowa | Opposing | GA88 |
| Drew Kamp | Ames Chamber of Commerce | Opposing | GA88 |
| Drew Kamp | Ames Chamber of Commerce | 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 |
| Barbra Solberg | Cedar Rapids Metro Economic Alliance | Opposing | GA88 |
| Barbra Solberg | Cedar Rapids Metro Economic Alliance | Undecided | GA88 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA88 |
| Barry Gentry | Dubuque Area Chamber of Commerce | Opposing | GA88 |
| Andrea Woodard | Greater Des Moines Partnership | Opposing | GA88 |
| Andrea Woodard | Greater Des Moines Partnership | Undecided | GA88 |
| Brad Epperly | Greater Des Moines Partnership | Opposing | GA88 |
| Brad Epperly | Greater Des Moines Partnership | Undecided | GA88 |
| Dustin Miller | Greater Des Moines Partnership | Opposing | GA88 |
| Dustin Miller | Greater Des Moines Partnership | Undecided | GA88 |
| Joe Murphy | Greater Des Moines Partnership | Opposing | GA88 |
| Joe Murphy | Greater Des Moines Partnership | Undecided | GA88 |
| Katie Graham | Greater Des Moines Partnership | Opposing | GA88 |
| Katie Graham | Greater Des Moines Partnership | Undecided | GA88 |
| Paula Dierenfeld | Greater Des Moines Partnership | Opposing | GA88 |
| Paula Dierenfeld | Greater Des Moines Partnership | Undecided | 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 |
| Connie Ryan | Interfaith Alliance of Iowa Action Fund | Opposing | GA88 |
| Brad Hartkopf | Iowa Association of Business and Industry (ABI) | Opposing | GA88 |
| Drew Wynes | Iowa Association of Business and Industry (ABI) | Opposing | GA88 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Opposing | GA88 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Opposing | 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 | Opposing | GA88 |
| Meghan Malloy | Iowa Catholic Conference | Opposing | GA88 |
| Tom Chapman | Iowa Catholic Conference | Opposing | GA88 |
| Brad Epperly | Iowa Chamber Alliance | Opposing | GA88 |
| Brad Epperly | Iowa Chamber Alliance | Undecided | GA88 |
| Dustin Miller | Iowa Chamber Alliance | Opposing | GA88 |
| Dustin Miller | Iowa Chamber Alliance | Undecided | GA88 |
| John Stineman | Iowa Chamber Alliance | Opposing | GA88 |
| John Stineman | Iowa Chamber Alliance | Undecided | GA88 |
| Katie Graham | Iowa Chamber Alliance | Opposing | GA88 |
| Katie Graham | Iowa Chamber Alliance | Undecided | GA88 |
| Paula Dierenfeld | Iowa Chamber Alliance | Opposing | GA88 |
| Paula Dierenfeld | Iowa Chamber Alliance | Undecided | GA88 |
| Laura Hessburg | Iowa Coalition Against Domestic Violence | Opposing | GA88 |
| Brian Carter | Iowa Conference of United Methodist Church | Opposing | GA88 |
| Gary Nims | Iowa Conference of United Methodist Church | Opposing | GA88 |
| Rita Carter | Iowa Conference of United Methodist Church | Opposing | GA88 |
| Sheila Corsbie | Iowa Conference of United Methodist Church | Opposing | GA88 |
| Amy McCoy | Iowa Dept. of Public Health | Undecided | GA88 |
| Charlie Wishman | Iowa Federation of Labor, AFL-CIO | Undecided | GA88 |
| Jake Ketzner | Iowa Greenhouse Growers Association | Undecided | GA88 |
| Larry Blixt | Iowa Greenhouse Growers Association | Undecided | 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 |
| Alan Kemp | Iowa League of Cities | Undecided | GA88 |
| Daniel Stalder | Iowa League of Cities | Undecided | GA88 |
| Robert Palmer | Iowa League of Cities | Undecided | GA88 |
| Robert Ussery | Iowa Minuteman Civil Defense Corps | Supporting | GA88 |
| Eric Goranson | Iowa Restaurant Association | Opposing | GA88 |
| Eric Goranson | Iowa Restaurant Association | Undecided | GA88 |
| Michael Triplett | Iowa Restaurant Association | Opposing | GA88 |
| Jim Henter | Iowa Retail Federation | Opposing | 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 |
| Ben Hammes | Master Builders of Iowa | Opposing | GA88 |
| Chad Kleppe | Master Builders of Iowa | Opposing | GA88 |
| Julie Smith | Master Builders of Iowa | Opposing | 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 |
| Tammy Kobza | Phyllis Schlafly Eagles of Iowa | Supporting | GA88 |
| Amy Campbell | Professional Developers of Iowa (PDI) | Undecided | GA88 |
| Craig Patterson | Professional Developers of Iowa (PDI) | Undecided | GA88 |
| Tyler Power | Quad Cities Chamber of Commerce | Opposing | GA88 |
| Jim Romar | Teamsters Local 238 | Undecided | GA88 |
| Frank Stork | Wellmark, Inc. | Undecided | GA88 |
| Scott Sundstrom | Wellmark, Inc. | Undecided | GA88 |