| Courtney Craig | 3M Company and its affiliates | Undecided | GA88 |
| Robert Weiser | 3M Company and its affiliates | Undecided | GA88 |
| Julie Vande Hoef | Alliant Energy Corporation | Undecided | GA88 |
| David Scott | American Council of Engineering Companies | Opposing | GA88 |
| Courtney Craig | Annett Holdings | Undecided | GA88 |
| Robert Weiser | Annett Holdings | Undecided | GA88 |
| Kate Walton | Arconic (Formerly Alcoa) | Opposing | 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 |
| Carolann Jensen | Board of Regents, State of Iowa | 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 |
| Kate Walton | CN Rail | Undecided | GA88 |
| Matt Eide | CN Rail | Undecided | GA88 |
| Courtney Craig | CRST International | Undecided | GA88 |
| Robert Weiser | CRST International | Undecided | GA88 |
| Maddie Wilcox | Easter Seals Iowa | Opposing | GA88 |
| Threase Harms | Easter Seals Iowa | Opposing | GA88 |
| Wendy Abrahamson | Episcopal Diocese of Iowa | Opposing | GA88 |
| Sydney Gangestad | Everytown for Gun Safety Action Fund | Opposing | GA88 |
| Tim Coonan | Everytown for Gun Safety Action Fund | Opposing | GA88 |
| Charlotte Eby | Giffords | Undecided | GA88 |
| Taylor McDonald | Giffords | 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 |
| Teresa Bomhoff | IA Mental Health Planning Council | Opposing | GA88 |
| Connie Ryan | Interfaith Alliance of Iowa Action Fund | Opposing | GA88 |
| Dane Schumann | Iowa Alliance of YMCA's | Undecided | GA88 |
| Maddie Wilcox | Iowa Alliance of YMCA's | Undecided | GA88 |
| Threase Harms | Iowa Alliance of YMCA's | Undecided | 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 |
| David Palmer | Iowa Association of Community College Trustees | Undecided | GA88 |
| Emily Shields | Iowa Association of Community College Trustees | Undecided | GA88 |
| James Kersten | Iowa Association of Community College Trustees | Undecided | GA88 |
| Laurie Wolf | Iowa Association of Community College Trustees | 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 |
| Jenica Lensmeyer | Iowa Bankers Association | Undecided | GA88 |
| Mike Rozenboom | Iowa Bankers Association | Undecided | GA88 |
| Robert Hartwig | Iowa Bankers Association | Undecided | GA88 |
| Sharon Presnall | Iowa Bankers Association | Undecided | GA88 |
| Jenica Lensmeyer | Iowa Bankers Insurance & Services, Inc. | Undecided | GA88 |
| Mike Rozenboom | Iowa Bankers Insurance & Services, Inc. | Undecided | GA88 |
| Robert Hartwig | Iowa Bankers Insurance & Services, Inc. | Undecided | GA88 |
| Sharon Presnall | Iowa Bankers Insurance & Services, Inc. | Undecided | GA88 |
| Jenica Lensmeyer | Iowa Bankers Mortgage Corp. | Undecided | GA88 |
| Mike Rozenboom | Iowa Bankers Mortgage Corp. | Undecided | GA88 |
| Robert Hartwig | Iowa Bankers Mortgage Corp. | Undecided | GA88 |
| Sharon Presnall | Iowa Bankers Mortgage Corp. | Undecided | GA88 |
| Tom Chapman | Iowa Catholic Conference | Opposing | GA88 |
| James Kersten | Iowa Central Community College | Undecided | GA88 |
| Laura Hessburg | Iowa Coalition Against Domestic Violence | Opposing | 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 |
| 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 |
| Kelly Meyers | Iowa County Attorneys Association | Undecided | GA88 |
| Susan Cameron Daemen | Iowa County Attorneys Association | Undecided | GA88 |
| Richard Rogers | Iowa Firearms Coalition, Inc. | Supporting | GA88 |
| Michael Triplett | Iowa Funeral Directors 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 |
| David Scott | Iowa Motor Truck Association | Opposing | GA88 |
| Kellie Paschke | Iowa Peace Officers Association | Undecided | GA88 |
| Troy Skinner | Iowa Peace Officers Association | Undecided | GA88 |
| Gary Grant | Iowa Police Chief Association (FKA Iowa Police Executive Forum) | Opposing | GA88 |
| Gary Grant | Iowa Police Chief Association (FKA Iowa Police Executive Forum) | Withdrawn | GA88 |
| Gary Grant | Iowa Police Chief Association (FKA Iowa Police Executive Forum) | Undecided | GA88 |
| Larry Murphy | Iowa Police Chief Association (FKA Iowa Police Executive Forum) | Opposing | GA88 |
| Larry Murphy | Iowa Police Chief Association (FKA Iowa Police Executive Forum) | Withdrawn | GA88 |
| Larry Murphy | Iowa Police Chief Association (FKA Iowa Police Executive Forum) | Undecided | 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 |
| Melissa Peterson | Iowa State Education Association | Opposing | GA88 |
| Jeff Smith | Iowa State Police Association | Undecided | GA88 |
| Jerry Fitzgerald | Iowa State Police Association | Undecided | GA88 |
| Maggie Smith-Fitzgerald | Iowa State Police Association | Undecided | GA88 |
| Matt Fitzgerald | Iowa State Police Association | Undecided | GA88 |
| Kelly Meyers | Iowa State Sheriffs' & Deputies' Association | Undecided | GA88 |
| Susan Cameron Daemen | Iowa State Sheriffs' & Deputies' Association | Undecided | GA88 |
| Cindy Schulte | Iowa Valley Community College District | Undecided | GA88 |
| Jeremy Brigham | Iowans for Gun Safety | Opposing | GA88 |
| Scott Peterson | Iowans for Gun Safety | Opposing | GA88 |
| Amy Campbell | League of Women Voters of Iowa | Opposing | GA88 |
| Craig Patterson | League of Women Voters of Iowa | Opposing | GA88 |
| Ben Hammes | Master Builders of Iowa | Undecided | GA88 |
| Chad Kleppe | Master Builders of Iowa | Undecided | GA88 |
| Julie Smith | Master Builders of Iowa | Undecided | GA88 |
| Brad Epperly | Monsanto Company | Undecided | GA88 |
| Dustin Miller | Monsanto Company | Undecided | GA88 |
| Katie Graham | Monsanto Company | Undecided | GA88 |
| Scott Jones | National Rifle Association of America | Supporting | GA88 |
| Jesse Cickavage | Personal Interest-Jesse Cickavage | Supporting | GA88 |
| Zachariah Van Der Hart | Personal Interest-Zachariah Van Der Hart | Supporting | GA88 |
| Margaret Buckton | Rural School Advocates of Iowa | Opposing | GA88 |
| Michael Triplett | Union Pacific Railroad | Undecided | GA88 |
| Margaret Buckton | Urban Education Network of Iowa | Opposing | GA88 |
| Frank Stork | Wellmark, Inc. | Opposing | GA88 |
| Scott Sundstrom | Wellmark, Inc. | Opposing | GA88 |