| David Scott | American Council of Engineering Companies | Opposing | GA87 |
| Drew Kamp | Ames Chamber of Commerce | Undecided | GA87 |
| Scott Newhard | Associated General Contractors of Iowa | Opposing | 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 | Supporting | GA87 |
| Gary Grant | City of Cedar Rapids | Undecided | GA87 |
| Larry Murphy | City of Cedar Rapids | Undecided | GA87 |
| Meghan Malloy | City of Cedar Rapids | 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 |
| Christopher Rants | Design Build Institute of America - Mid-American Region c/o MultiState Associate | Supporting | GA87 |
| John Cacciatore | Design Build Institute of America - Mid-American Region c/o MultiState Associate | Supporting | GA87 |
| Andrea Woodard | Greater Des Moines 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 |
| Jay Iverson | Home Builders Association of Iowa | Undecided | GA87 |
| Dane Schumann | IBEW Iowa State Conference | Undecided | GA87 |
| Emily Hockins | IBEW Iowa State Conference | Undecided | GA87 |
| Threase Harms | IBEW Iowa State Conference | Undecided | GA87 |
| Thomas Jochum | International Union of Operating Engineers-Local 234 | Supporting | GA87 |
| Emily Piper | Iowa Association of School Boards | Undecided | GA87 |
| Phil Jeneary | Iowa Association of School Boards | Undecided | GA87 |
| Brad Epperly | Iowa Chamber Alliance | Undecided | GA87 |
| Dustin Miller | Iowa Chamber Alliance | Undecided | GA87 |
| John Stineman | Iowa Chamber Alliance | Undecided | GA87 |
| Paula Dierenfeld | Iowa Chamber Alliance | Undecided | GA87 |
| Brad Epperly | Iowa Chapter, American Institute of Architects | Opposing | GA87 |
| Dustin Miller | Iowa Chapter, American Institute of Architects | Opposing | GA87 |
| Katie Graham | Iowa Chapter, American Institute of Architects | Opposing | GA87 |
| Paula Dierenfeld | Iowa Chapter, American Institute of Architects | Opposing | GA87 |
| Doug Struyk | Iowa Competitive Bidding Alliance, Inc. | Opposing | GA87 |
| Jennifer Dorman | Iowa Competitive Bidding Alliance, Inc. | Opposing | GA87 |
| Jim Carney | Iowa Competitive Bidding Alliance, Inc. | Opposing | GA87 |
| Charlie Wishman | Iowa Federation of Labor, AFL-CIO | Undecided | GA87 |
| Erika Eckley | Iowa Hospital Association | Undecided | GA87 |
| J. Norris | Iowa Hospital Association | Undecided | GA87 |
| Kim Murphy | Iowa Hospital Association | Undecided | GA87 |
| Maureen Keehnle | Iowa Hospital 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 |
| Gary Grant | Iowa Police Chief Association (FKA Iowa Police Executive Forum) | Undecided | GA87 |
| Larry Murphy | Iowa Police Chief Association (FKA Iowa Police Executive Forum) | 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 | Supporting | GA87 |
| Erich Schmidt | Laborers International Union of North America | Supporting | GA87 |
| Gary Grant | Linn County Board of Supervisors | Undecided | GA87 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA87 |
| Meghan Malloy | Linn County Board of Supervisors | Undecided | 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) | Supporting | GA87 |
| Craig Walter | Mechanical Contractors Association of Iowa (MCAI) | Supporting | GA87 |
| Brian Johnson | NECA - Iowa (NEC) | Supporting | GA87 |
| Craig Walter | NECA - Iowa (NEC) | Supporting | GA87 |
| Charlotte Eby | North Central States Regional Council of Carpenters | Supporting | GA87 |
| Felicia Hilton | North Central States Regional Council of Carpenters | Supporting | GA87 |
| Christopher Rants | Plumbers and Steam Fitters Local 33 | Supporting | GA87 |
| John Cacciatore | Plumbers and Steam Fitters Local 33 | Supporting | GA87 |
| Chris Smith | SMART Sheet Metal Local 263 | Supporting | GA87 |
| Chris Smith | SMART Sheet Metal Local 45 | Supporting | GA87 |
| Gary Grant | Urban County Coalition | Undecided | GA87 |
| Larry Murphy | Urban County Coalition | Undecided | GA87 |
| Meghan Malloy | Urban County Coalition | Undecided | GA87 |
| Jeffrey Boeyink | Weitz Company | Supporting | GA87 |