| Brad Epperly | Americas Health Insurance Plans (AHIP) | Opposing | GA88 |
| Dustin Miller | Americas Health Insurance Plans (AHIP) | Opposing | GA88 |
| Katie Graham | Americas Health Insurance Plans (AHIP) | Opposing | GA88 |
| Paula Dierenfeld | Americas Health Insurance Plans (AHIP) | Opposing | GA88 |
| Drew Kamp | Ames Chamber of Commerce | Opposing | GA88 |
| Christopher Riley | Archer Daniels Midland Company | Opposing | GA88 |
| Barbra Solberg | Cedar Rapids Metro Economic Alliance | Opposing | GA88 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA88 |
| Gary Grant | City of Cedar Rapids | Undecided | GA88 |
| Larry Murphy | City of Cedar Rapids | Undecided | GA88 |
| Meghan Malloy | City of Cedar Rapids | Undecided | GA88 |
| Tim Reilly | Department of Revenue | Undecided | GA88 |
| Mark Joyce | E. I. du Pont de Nemours and Company dba Corteva Agriscience | Undecided | GA88 |
| Brad Epperly | Federation of Iowa Insurers | Opposing | GA88 |
| Dustin Miller | Federation of Iowa Insurers | Opposing | GA88 |
| Katie Graham | Federation of Iowa Insurers | Opposing | GA88 |
| Paula Dierenfeld | Federation of Iowa Insurers | Opposing | GA88 |
| Andrea Woodard | Greater Des Moines Partnership | Opposing | GA88 |
| Brad Epperly | Greater Des Moines Partnership | Opposing | GA88 |
| Dustin Miller | Greater Des Moines Partnership | Opposing | GA88 |
| Joe Murphy | Greater Des Moines Partnership | Opposing | GA88 |
| Katie Graham | Greater Des Moines Partnership | Opposing | GA88 |
| Paula Dierenfeld | Greater Des Moines Partnership | Opposing | GA88 |
| Brad Epperly | Helena Agri-Enterprises, LLC | Opposing | GA88 |
| Dustin Miller | Helena Agri-Enterprises, LLC | Opposing | GA88 |
| Katie Graham | Helena Agri-Enterprises, LLC | Opposing | GA88 |
| Paula Dierenfeld | Helena Agri-Enterprises, LLC | Opposing | GA88 |
| Brad Hartkopf | 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 |
| Jessica Hyland | Iowa Biotechnology Association | Opposing | GA88 |
| Brad Epperly | Iowa Broadcasters Association | Undecided | GA88 |
| Dustin Miller | Iowa Broadcasters Association | Undecided | GA88 |
| Katie Graham | Iowa Broadcasters Association | Undecided | GA88 |
| Paula Dierenfeld | Iowa Broadcasters Association | Undecided | GA88 |
| James Kersten | Iowa Central Community College | Undecided | GA88 |
| Brad Epperly | Iowa Chamber Alliance | Opposing | GA88 |
| Dustin Miller | Iowa Chamber Alliance | Opposing | GA88 |
| John Stineman | Iowa Chamber Alliance | Opposing | GA88 |
| Katie Graham | Iowa Chamber Alliance | Opposing | GA88 |
| Paula Dierenfeld | Iowa Chamber Alliance | Opposing | GA88 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Opposing | GA88 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Undecided | GA88 |
| Jennifer Klein | Iowa Economic Development Authority | Undecided | GA88 |
| Kristin Hanks-Bents | Iowa Economic Development Authority | Undecided | GA88 |
| Carolann Jensen | Iowa Finance Authority | Undecided | GA88 |
| Brad Epperly | Iowa Geothermal Association | Undecided | GA88 |
| Dustin Miller | Iowa Geothermal Association | Undecided | GA88 |
| Katie Graham | Iowa Geothermal Association | Undecided | GA88 |
| Paula Dierenfeld | Iowa Geothermal 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 |
| Anna Gray | Iowa Natural Heritage Foundation | Opposing | GA88 |
| Brad Epperly | Iowa Newspaper Association | Undecided | GA88 |
| Dustin Miller | Iowa Newspaper Association | Undecided | GA88 |
| Katie Graham | Iowa Newspaper Association | Undecided | GA88 |
| Paula Dierenfeld | Iowa Newspaper Association | Undecided | GA88 |
| Robert Weiser | Iowa Northern Railway Company | Undecided | GA88 |
| Mike Heller | Iowa Renewable Fuels Association (IRF) | Undecided | GA88 |
| Paula Feltner | Iowa Renewable Fuels Association (IRF) | Undecided | GA88 |
| Jim Henter | Iowa Retail Federation | 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 |
| Bradley Hudson | Iowa State Education Association | Supporting | GA88 |
| Melissa Peterson | Iowa State Education Association | Supporting | GA88 |
| Alexander Cutchey | Iowa Utilities Board | Withdrawn | GA88 |
| Alexander Cutchey | Iowa Utilities Board | Undecided | GA88 |
| Gary Grant | Linn County Board of Supervisors | Undecided | GA88 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA88 |
| Meghan Malloy | Linn County Board of Supervisors | Undecided | GA88 |
| Taylor Teepell | Lumen | Undecided | GA88 |
| Doug Struyk | Meredith Corporation | Undecided | GA88 |
| Jennifer Dorman | Meredith Corporation | Undecided | GA88 |
| Jim Carney | Meredith Corporation | Undecided | GA88 |
| Brad Epperly | Monsanto Company | Opposing | GA88 |
| Dustin Miller | Monsanto Company | Opposing | GA88 |
| Katie Graham | Monsanto Company | Opposing | GA88 |
| Cody Carlson | National Federation of Independent Business (NFIB /IA) | Undecided | GA88 |
| Sydney Gangestad | Principal Financial Group | Opposing | GA88 |
| Tim Coonan | Principal Financial Group | Opposing | GA88 |
| Amy Campbell | Professional Developers of Iowa (PDI) | Opposing | GA88 |
| Craig Patterson | Professional Developers of Iowa (PDI) | Opposing | GA88 |
| Steven Schoenebaum | Syngenta Crop Protection | Opposing | GA88 |
| Steven Schoenebaum | Syngenta Crop Protection | Undecided | GA88 |
| Gary Grant | Urban County Coalition | Undecided | GA88 |
| Larry Murphy | Urban County Coalition | Undecided | GA88 |
| Meghan Malloy | Urban County Coalition | Undecided | GA88 |