| Jeff Smith | Agribusiness Association of Iowa | Opposing | GA90 |
| Maggie Smith-Fitzgerald | Agribusiness Association of Iowa | Opposing | GA90 |
| Matt Fitzgerald | Agribusiness Association of Iowa | Opposing | GA90 |
| David Scott | American Council of Engineering Companies | Opposing | GA90 |
| Brad Epperly | Ames Regional Economic Alliance | Undecided | GA90 |
| Dustin Miller | Ames Regional Economic Alliance | Undecided | GA90 |
| Robert Weiser | Annett Holdings | Opposing | GA90 |
| Scott Newhard | Associated General Contractors of Iowa | Opposing | GA90 |
| Nick Laning | BLD Connection Iowa | Undecided | GA90 |
| Threase Harms | BLD Connection Iowa | Undecided | GA90 |
| Brad Epperly | BNSF Railway Co. | Undecided | GA90 |
| Dustin Miller | BNSF Railway Co. | Undecided | GA90 |
| Brad Epperly | Bayer U.S. LLC | Undecided | GA90 |
| Dustin Miller | Bayer U.S. LLC | Undecided | GA90 |
| Robert Weiser | CRST International | Opposing | GA90 |
| Jon Murphy | Casey's General Stores | Undecided | GA90 |
| Jon Murphy | Casey's General Stores | Opposing | GA90 |
| Tom Cope | Casey's General Stores | Undecided | GA90 |
| Tom Cope | Casey's General Stores | Opposing | GA90 |
| Barbra Solberg | Cedar Rapids Metro Economic Alliance | Opposing | GA90 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Opposing | GA90 |
| Drew Kamp | Council Bluffs Chamber of Commerce | Opposing | GA90 |
| Ryan Sempf | Dubuque Area Chamber of Commerce | Opposing | GA90 |
| Wendy Abrahamson | Episcopal Diocese of Iowa | Opposing | GA90 |
| Andrea Woodard | Greater Des Moines Partnership | Opposing | GA90 |
| Brad Epperly | Greater Des Moines Partnership | Opposing | GA90 |
| Dustin Miller | Greater Des Moines Partnership | Opposing | GA90 |
| James Piazza, Jr. | Heavy Highway Contractors Association | Undecided | GA90 |
| Brad Epperly | Helena Agri-Enterprises, LLC | Undecided | GA90 |
| Dustin Miller | Helena Agri-Enterprises, LLC | Undecided | GA90 |
| Connie Ryan | Interfaith Alliance of Iowa Action Fund | Opposing | GA90 |
| Brad Hartkopf | Iowa Association of Business and Industry (ABI) | Opposing | GA90 |
| John Davis | Iowa Association of Business and Industry (ABI) | Opposing | GA90 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Opposing | GA90 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Opposing | GA90 |
| Brad Epperly | Iowa Automobile Dealers Association | Undecided | GA90 |
| Dustin Miller | Iowa Automobile Dealers Association | Undecided | GA90 |
| Carolann Jensen | Iowa Board of Regents | Undecided | GA90 |
| Jennifer Harbison | Iowa Board of Regents | Undecided | GA90 |
| Keith Saunders | Iowa Board of Regents | Undecided | GA90 |
| Mary Braun | Iowa Board of Regents | Undecided | GA90 |
| Joe Murphy | Iowa Business Council | Opposing | GA90 |
| Larry Murphy | Iowa Catholic Conference | Opposing | GA90 |
| Tom Chapman | Iowa Catholic Conference | Opposing | GA90 |
| Brad Epperly | Iowa Chamber Alliance | Opposing | GA90 |
| Dustin Miller | Iowa Chamber Alliance | Opposing | GA90 |
| Barbra Solberg | Iowa City Area Business Partnership | Opposing | GA90 |
| Laura Hessburg | Iowa Coalition Against Domestic Violence | Opposing | GA90 |
| Brad Epperly | Iowa Collectors Association, Inc. | Undecided | GA90 |
| Dustin Miller | Iowa Collectors Association, Inc. | Undecided | GA90 |
| Kelly Meyers | Iowa County Attorneys Association | Undecided | GA90 |
| Tom Ferguson | Iowa County Attorneys Association | Undecided | GA90 |
| Carrie Malone | Iowa Department of Health and Human Services | Undecided | GA90 |
| Dax Oberreuter | Iowa Department of Health and Human Services | Undecided | GA90 |
| Jancy Nielson | Iowa Department of Health and Human Services | Undecided | GA90 |
| Deanna Triplett | Iowa Economic Development Authority | Undecided | GA90 |
| Jeff Pitts | Iowa Faith and Freedom Coalition | Supporting | GA90 |
| Chelsea Hoye | Iowa Farmers Union | Undecided | GA90 |
| Nick Laning | Iowa Farmers Union | Undecided | GA90 |
| Threase Harms | Iowa Farmers Union | Undecided | GA90 |
| Peter Hird | Iowa Federation of Labor, AFL-CIO | Opposing | GA90 |
| Jake Ketzner | Iowa Greenhouse Growers Association | Opposing | GA90 |
| Larry Blixt | Iowa Greenhouse Growers Association | Opposing | GA90 |
| Nick Boeyink | Iowa Greenhouse Growers Association | Opposing | GA90 |
| Brad Epperly | Iowa Grocery Industry Association | Undecided | GA90 |
| Dustin Miller | Iowa Grocery Industry Association | Undecided | GA90 |
| Eric Goranson | Iowa Hotel & Lodging Association | Opposing | GA90 |
| Frederick Haskins | Iowa Insurance Associates | Opposing | GA90 |
| Erica Johnson | Iowa Migrant Movement for Justice | Opposing | GA90 |
| Robert Ussery | Iowa Minuteman Civil Defense Corps | Supporting | GA90 |
| David Scott | Iowa Motor Truck Association | Opposing | GA90 |
| Eric Goranson | Iowa Restaurant Association | Opposing | GA90 |
| Jim Henter | Iowa Retail Federation | Opposing | GA90 |
| Eric Gookin | Iowa Secretary of State | Undecided | GA90 |
| Brad Epperly | Iowa Society of Certified Public Accountants | Undecided | GA90 |
| Dustin Miller | Iowa Society of Certified Public Accountants | Undecided | GA90 |
| Doug Struyk | Iowa State Bar Association | Opposing | GA90 |
| Jennifer Dorman | Iowa State Bar Association | Opposing | GA90 |
| Jim Carney | Iowa State Bar Association | Opposing | GA90 |
| David Scott | Iowa Water Well Association | Opposing | GA90 |
| John Hall | Marshalltown Area Chamber of Commerce | Opposing | GA90 |
| Ben Hammes | Master Builders of Iowa | Opposing | GA90 |
| Julie Smith | Master Builders of Iowa | Opposing | GA90 |
| Logan Shine | Master Builders of Iowa | Opposing | GA90 |
| Cody Carlson | National Federation of Independent Business (NFIB /IA) | Opposing | GA90 |
| Frederick Haskins | Patterson Law Firm LLP | Opposing | GA90 |
| Amy Campbell | Professional Developers of Iowa (PDI) | Undecided | GA90 |
| Craig Patterson | Professional Developers of Iowa (PDI) | Undecided | GA90 |
| Brad Epperly | Quad Cities Chamber of Commerce | Opposing | GA90 |
| Brad Epperly | Quad Cities Chamber of Commerce | Undecided | GA90 |
| Casey Nickel | Quad Cities Chamber of Commerce | Opposing | GA90 |
| Dustin Miller | Quad Cities Chamber of Commerce | Opposing | GA90 |
| Dustin Miller | Quad Cities Chamber of Commerce | Undecided | GA90 |
| Ryan Sempf | Quad Cities Chamber of Commerce | Opposing | GA90 |
| Steven Schoenebaum | Smithfield Foods, Inc. | Undecided | GA90 |
| Kelli Harrison | UAW Region 4 | Opposing | GA90 |
| Brandon Geib | Wellmark, Inc. | Undecided | GA90 |
| Scott Sundstrom | Wellmark, Inc. | Undecided | GA90 |