| David Scott | American Council of Engineering Companies | Opposing | GA88 |
| Drew Kamp | Ames Chamber of Commerce | Undecided | GA88 |
| Sandra Conlin | Associated Builders & Contractors of Iowa | Opposing | GA88 |
| Scott Newhard | Associated General Contractors of Iowa | Opposing | 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 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Supporting | GA88 |
| Thomas Jochum | Central Iowa Building Construction Trades Council | Supporting | GA88 |
| Gary Grant | City of Cedar Rapids | Supporting | GA88 |
| Larry Murphy | City of Cedar Rapids | Supporting | GA88 |
| Meghan Malloy | City of Cedar Rapids | Supporting | GA88 |
| Christopher Rants | Design Build Institute of America - Mid-American Region c/o MultiState Associate | Supporting | GA88 |
| John Cacciatore | Design Build Institute of America - Mid-American Region c/o MultiState Associate | Supporting | GA88 |
| Dane Schumann | IBEW Iowa State Conference | Undecided | GA88 |
| Maddie Wilcox | IBEW Iowa State Conference | Undecided | GA88 |
| Threase Harms | IBEW Iowa State Conference | Undecided | GA88 |
| Thomas Jochum | International Union of Operating Engineers-Local 234 | Supporting | GA88 |
| Julie Smith | Iowa Association of Municipal Utilities | Supporting | GA88 |
| Timothy Whipple | Iowa Association of Municipal Utilities | Supporting | GA88 |
| Brad Epperly | Iowa Chamber Alliance | Supporting | GA88 |
| Dustin Miller | Iowa Chamber Alliance | Supporting | GA88 |
| John Stineman | Iowa Chamber Alliance | Supporting | GA88 |
| Katie Graham | Iowa Chamber Alliance | Supporting | GA88 |
| Paula Dierenfeld | Iowa Chamber Alliance | Supporting | GA88 |
| Jennifer Banta | Iowa City Area Chamber of Commerce | Supporting | GA88 |
| Doug Struyk | Iowa Competitive Bidding Alliance, Inc. | Opposing | GA88 |
| Jennifer Dorman | Iowa Competitive Bidding Alliance, Inc. | Opposing | GA88 |
| Jim Carney | Iowa Competitive Bidding Alliance, Inc. | Opposing | GA88 |
| Jamie Cashman | Iowa State Association of Counties | Supporting | GA88 |
| Kristi Harshbarger | Iowa State Association of Counties | Supporting | GA88 |
| Lucas Beenken | Iowa State Association of Counties | Supporting | GA88 |
| William Peterson | Iowa State Association of Counties | Supporting | GA88 |
| Jamie Cashman | Iowa State Association of County Supervisors | Supporting | GA88 |
| Kristi Harshbarger | Iowa State Association of County Supervisors | Supporting | GA88 |
| Lucas Beenken | Iowa State Association of County Supervisors | Supporting | GA88 |
| William Peterson | Iowa State Association of County Supervisors | Supporting | GA88 |
| Michael Gronstal | Iowa State Building and Construction Trades | Supporting | GA88 |
| Stephanie Bredman | Kirkwood Community College | Undecided | GA88 |
| Gary Grant | Linn County Board of Supervisors | Supporting | GA88 |
| Larry Murphy | Linn County Board of Supervisors | Supporting | GA88 |
| Meghan Malloy | Linn County Board of Supervisors | Supporting | GA88 |
| Ben Hammes | Master Builders of Iowa | Supporting | GA88 |
| Chad Kleppe | Master Builders of Iowa | Supporting | GA88 |
| Julie Smith | Master Builders of Iowa | Supporting | GA88 |
| Brian Johnson | Mechanical Contractors Association of Iowa (MCAI) | Supporting | GA88 |
| Craig Walter | Mechanical Contractors Association of Iowa (MCAI) | Supporting | GA88 |
| Brian Johnson | NECA - Iowa (NEC) | Supporting | GA88 |
| Craig Walter | NECA - Iowa (NEC) | Supporting | GA88 |
| Charlotte Eby | North Central States Regional Council of Carpenters | Supporting | GA88 |
| Felicia Hilton | North Central States Regional Council of Carpenters | Supporting | GA88 |
| Taylor McDonald | North Central States Regional Council of Carpenters | Supporting | GA88 |
| Brian Johnson | Polk County - Board of Supervisors | Supporting | GA88 |
| Craig Walter | Polk County - Board of Supervisors | Supporting | GA88 |
| Chris Smith | SMART Sheet Metal Local 263 | Supporting | GA88 |
| Chris Smith | SMART Sheet Metal Local 45 | Supporting | GA88 |
| Chris Smith | SMART Sheet Metal Local 91 | Supporting | GA88 |
| David Adelman | Sheet Metal Contractors of Iowa | Supporting | GA88 |
| Frank Chiodo | Sheet Metal Contractors of Iowa | Supporting | GA88 |
| Matt Hinch | Sheet Metal Contractors of Iowa | Supporting | GA88 |
| Sara Allen | Sheet Metal Contractors of Iowa | Supporting | GA88 |
| Gary Grant | Urban County Coalition | Undecided | GA88 |
| Larry Murphy | Urban County Coalition | Undecided | GA88 |
| Meghan Malloy | Urban County Coalition | Undecided | GA88 |
| BRITTANY LUMLEY | Weitz Company | Supporting | GA88 |
| Charlotte Eby | Weitz Company | Supporting | GA88 |
| Jeffrey Boeyink | Weitz Company | Supporting | GA88 |
| Taylor McDonald | Weitz Company | Supporting | GA88 |