| Drew Kamp | Ames Chamber of Commerce | Undecided | GA87 |
| Sandra Conlin | Associated Builders & Contractors of Iowa | Supporting | GA87 |
| Keith Saunders | Board of Regents, State of Iowa | Undecided | GA87 |
| Kristin Bauer | Board of Regents, State of Iowa | Undecided | GA87 |
| Mary Braun | Board of Regents, State of Iowa | Undecided | GA87 |
| Thomas Jochum | Central Iowa Building Construction Trades Council | Opposing | GA87 |
| Doug Struyk | City of Des Moines | Undecided | GA87 |
| Jennifer Dorman | City of Des Moines | Undecided | GA87 |
| Jim Carney | City of Des Moines | Undecided | GA87 |
| Doug Struyk | City of Iowa City | Undecided | GA87 |
| Jennifer Dorman | City of Iowa City | Undecided | GA87 |
| Jim Carney | City of Iowa City | Undecided | GA87 |
| Doug Struyk | City of Waukee | Undecided | GA87 |
| Jennifer Dorman | City of Waukee | Undecided | GA87 |
| Jim Carney | City of Waukee | Undecided | GA87 |
| Brad Epperly | Eastlake Partnership | Undecided | GA87 |
| Dustin Miller | Eastlake Partnership | Undecided | GA87 |
| Paula Dierenfeld | Eastlake Partnership | Undecided | GA87 |
| Brad Epperly | Greater Des Moines Partnership | Undecided | GA87 |
| Dustin Miller | Greater Des Moines Partnership | Undecided | GA87 |
| Joe Murphy | Greater Des Moines Partnership | Undecided | GA87 |
| Paula Dierenfeld | Greater Des Moines Partnership | Undecided | GA87 |
| Michael Triplett | Greater Iowa Apartment Association | Supporting | GA87 |
| James Piazza, Jr. | Heavy Highway Contractors Association | Opposing | GA87 |
| Jay Iverson | Home Builders Association of Iowa | Supporting | GA87 |
| David Adelman | Hubbell Realty Company | Undecided | GA87 |
| Frank Chiodo | Hubbell Realty Company | Undecided | GA87 |
| Matt Hinch | Hubbell Realty Company | Undecided | GA87 |
| Sara Allen | Hubbell Realty Company | Undecided | GA87 |
| Thomas Jochum | International Union of Operating Engineers-Local 234 | Opposing | GA87 |
| Michael Triplett | Iowa Alliance of Surety Companies | Supporting | GA87 |
| Michael Triplett | Iowa Alliance of Surety Companies | Withdrawn | GA87 |
| Michael Triplett | Iowa Alliance of Surety Companies | Undecided | GA87 |
| Brad Hartkopf | Iowa Association of Business and Industry (ABI) | Undecided | GA87 |
| Jessica Hyland | Iowa Association of Business and Industry (ABI) | Undecided | GA87 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Undecided | GA87 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Undecided | GA87 |
| Jennifer Kingland | Iowa Association of Realtors | Undecided | GA87 |
| Emily Piper | Iowa Association of School Boards | Undecided | GA87 |
| Phil Jeneary | Iowa Association of School Boards | Undecided | GA87 |
| Nathan Blake | Iowa Attorney General Dept. of Justice | Undecided | GA87 |
| Robert Hartwig | Iowa Bankers Association | Undecided | GA87 |
| Sharon Presnall | Iowa Bankers Association | Undecided | GA87 |
| Brad Epperly | Iowa Chamber Alliance | Undecided | GA87 |
| Dustin Miller | Iowa Chamber Alliance | Undecided | GA87 |
| Paula Dierenfeld | Iowa Chamber Alliance | Undecided | GA87 |
| Brad Epperly | Iowa Chapter, American Institute of Architects | Undecided | GA87 |
| Dustin Miller | Iowa Chapter, American Institute of Architects | Undecided | GA87 |
| Paula Dierenfeld | Iowa Chapter, American Institute of Architects | Undecided | GA87 |
| Doug Struyk | Iowa Competitive Bidding Alliance, Inc. | Undecided | GA87 |
| Jennifer Dorman | Iowa Competitive Bidding Alliance, Inc. | Undecided | GA87 |
| Jim Carney | Iowa Competitive Bidding Alliance, Inc. | Undecided | GA87 |
| Amber Markham | Iowa Dept. of Public Safety | Undecided | GA87 |
| Charlie Wishman | Iowa Federation of Labor, AFL-CIO | Opposing | GA87 |
| Wes Peterson | Iowa Finance Authority | Undecided | GA87 |
| James Piazza, Jr. | Iowa Independent Automobile Dealers Association | Withdrawn | GA87 |
| James Piazza, Jr. | Iowa Independent Automobile Dealers Association | Undecided | GA87 |
| Alan Kemp | Iowa League of Cities | Undecided | GA87 |
| Lindsey McCune | Iowa League of Cities | Undecided | GA87 |
| Robert Palmer | Iowa League of Cities | Undecided | GA87 |
| Bill Wimmer | Iowa Lumber Association | Undecided | GA87 |
| Jamie Cashman | Iowa State Association of Counties | Undecided | GA87 |
| Kristi Harshbarger | Iowa State Association of Counties | Undecided | GA87 |
| Lucas Beenken | Iowa State Association of Counties | Undecided | GA87 |
| William Peterson | Iowa State Association of Counties | Undecided | GA87 |
| Jamie Cashman | Iowa State Association of County Supervisors | Undecided | GA87 |
| Kristi Harshbarger | Iowa State Association of County Supervisors | Undecided | GA87 |
| Lucas Beenken | Iowa State Association of County Supervisors | Undecided | GA87 |
| William Peterson | Iowa State Association of County Supervisors | Undecided | GA87 |
| Doug Struyk | Iowa State Bar Association | Undecided | GA87 |
| Jennifer Dorman | Iowa State Bar Association | Undecided | GA87 |
| Jim Carney | Iowa State Bar Association | Undecided | GA87 |
| tom fey | Iowa State Building and Construction Trades Council | Opposing | GA87 |
| Erich Schmidt | Laborers International Union of North America | Opposing | GA87 |
| Ben Hammes | Master Builders of Iowa | Supporting | GA87 |
| Chad Kleppe | Master Builders of Iowa | Supporting | GA87 |
| Julie Smith | Master Builders of Iowa | Supporting | GA87 |
| Brian Johnson | Mechanical Contractors Association of Iowa (MCAI) | Undecided | GA87 |
| Craig Walter | Mechanical Contractors Association of Iowa (MCAI) | Undecided | GA87 |
| Brian Johnson | NECA - Iowa (NEC) | Undecided | GA87 |
| Craig Walter | NECA - Iowa (NEC) | Undecided | GA87 |
| Cody Carlson | National Federation of Independent Business (NFIB /IA) | Undecided | GA87 |
| Charlotte Eby | North Central States Regional Council of Carpenters | Opposing | GA87 |
| Felicia Hilton | North Central States Regional Council of Carpenters | Opposing | GA87 |
| Doug Struyk | One Main Holdings, Inc. | Undecided | GA87 |
| Jennifer Dorman | One Main Holdings, Inc. | Undecided | GA87 |
| Jim Carney | One Main Holdings, Inc. | Undecided | GA87 |
| Eric Goranson | Plumbing Heating & Cooling Contractors of IA | Undecided | GA87 |
| Karla Fultz McHenry | Plumbing Heating & Cooling Contractors of IA | Undecided | GA87 |
| Michael Triplett | Plumbing Heating & Cooling Contractors of IA | Undecided | GA87 |
| Margaret Buckton | Rural School Advocates of Iowa | Undecided | GA87 |
| Chris Smith | SMART Sheet Metal Local 263 | Opposing | GA87 |
| Chris Smith | SMART Sheet Metal Local 91 | Opposing | GA87 |
| David Adelman | Sheet Metal Contractors of Iowa | Supporting | GA87 |
| Frank Chiodo | Sheet Metal Contractors of Iowa | Supporting | GA87 |
| Matt Hinch | Sheet Metal Contractors of Iowa | Supporting | GA87 |
| Sara Allen | Sheet Metal Contractors of Iowa | Supporting | GA87 |
| Doug Struyk | Town Financial | Undecided | GA87 |
| Jennifer Dorman | Town Financial | Undecided | GA87 |
| Jim Carney | Town Financial | Undecided | GA87 |
| Margaret Buckton | Urban Education Network of Iowa | Undecided | GA87 |
| Doug Struyk | Wells Fargo & Company | Undecided | GA87 |
| Jennifer Dorman | Wells Fargo & Company | Undecided | GA87 |
| Jim Carney | Wells Fargo & Company | Undecided | GA87 |