| Morgan Miller | AFSCME Iowa Council 61 | Opposing | GA87 |
| Drew Kamp | Ames Chamber of Commerce | Undecided | GA87 |
| Sandra Conlin | Associated Builders & Contractors of Iowa | Supporting | GA87 |
| Scott Newhard | Associated General 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 |
| Gary Grant | City of Cedar Rapids | Undecided | GA87 |
| Larry Murphy | City of Cedar Rapids | Undecided | GA87 |
| Meghan Malloy | City of Cedar Rapids | Undecided | GA87 |
| Jon Murphy | City of Coralville | Opposing | GA87 |
| Tom Cope | City of Coralville | Opposing | GA87 |
| Jen Schulte | City of Des Moines | Opposing | GA87 |
| Doug Struyk | City of Iowa City | Withdrawn | GA87 |
| Doug Struyk | City of Iowa City | Undecided | GA87 |
| Jennifer Dorman | City of Iowa City | Withdrawn | GA87 |
| Jennifer Dorman | City of Iowa City | Undecided | GA87 |
| Jim Carney | City of Iowa City | Withdrawn | GA87 |
| Jim Carney | City of Iowa City | Undecided | GA87 |
| Doug Struyk | City of Waukee | Withdrawn | GA87 |
| Doug Struyk | City of Waukee | Undecided | GA87 |
| Jennifer Dorman | City of Waukee | Withdrawn | GA87 |
| Jennifer Dorman | City of Waukee | Undecided | GA87 |
| Jim Carney | City of Waukee | Withdrawn | GA87 |
| Jim Carney | City of Waukee | Undecided | GA87 |
| Julie Smith | City of West Des Moines | Opposing | GA87 |
| Tim Coonan | City of West Des Moines | Opposing | 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 |
| Jeff Smith | Greater Fort Dodge Growth Alliance | Opposing | GA87 |
| Jerry Fitzgerald | Greater Fort Dodge Growth Alliance | Opposing | GA87 |
| Maggie Smith-Fitzgerald | Greater Fort Dodge Growth Alliance | Opposing | GA87 |
| Matt Fitzgerald | Greater Fort Dodge Growth Alliance | Opposing | GA87 |
| Dane Schumann | Grow Clinton County | Opposing | GA87 |
| Dane Schumann | Grow Clinton County | Undecided | GA87 |
| Emily Hockins | Grow Clinton County | Opposing | GA87 |
| Emily Hockins | Grow Clinton County | Undecided | GA87 |
| Threase Harms | Grow Clinton County | Opposing | GA87 |
| Threase Harms | Grow Clinton County | Undecided | GA87 |
| Jay Iverson | Home Builders Association of Iowa | Undecided | GA87 |
| Dane Schumann | IBEW Iowa State Conference | Opposing | GA87 |
| Dane Schumann | IBEW Iowa State Conference | Undecided | GA87 |
| Emily Hockins | IBEW Iowa State Conference | Opposing | GA87 |
| Emily Hockins | IBEW Iowa State Conference | Undecided | GA87 |
| Threase Harms | IBEW Iowa State Conference | Opposing | GA87 |
| Threase Harms | IBEW Iowa State Conference | Undecided | GA87 |
| Michael Triplett | Iowa Alliance of Surety Companies | Undecided | GA87 |
| David Palmer | Iowa Association of Community College Trustees (IACCT) | Undecided | GA87 |
| Laurie Wolf | Iowa Association of Community College Trustees (IACCT) | Undecided | 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 | Undecided | GA87 |
| Dustin Miller | Iowa Chapter, American Institute of Architects | Undecided | GA87 |
| Katie Graham | Iowa Chapter, American Institute of Architects | Undecided | GA87 |
| Paula Dierenfeld | Iowa Chapter, American Institute of Architects | Undecided | GA87 |
| Ryan Sempf | Iowa City Area Chamber of Commerce | Undecided | GA87 |
| Doug Struyk | Iowa Competitive Bidding Alliance, Inc. | Withdrawn | GA87 |
| Doug Struyk | Iowa Competitive Bidding Alliance, Inc. | Supporting | GA87 |
| Jennifer Dorman | Iowa Competitive Bidding Alliance, Inc. | Withdrawn | GA87 |
| Jennifer Dorman | Iowa Competitive Bidding Alliance, Inc. | Supporting | GA87 |
| Jim Carney | Iowa Competitive Bidding Alliance, Inc. | Withdrawn | GA87 |
| Jim Carney | Iowa Competitive Bidding Alliance, Inc. | Supporting | GA87 |
| Merea Bentrott | Iowa Dept. of Human Services | Undecided | GA87 |
| Charlie Wishman | Iowa Federation of Labor, AFL-CIO | Opposing | 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 | Opposing | GA87 |
| Lindsey McCune | Iowa League of Cities | Opposing | GA87 |
| Robert Palmer | Iowa League of Cities | Opposing | GA87 |
| Gary Grant | Iowa Police Chief Association (FKA Iowa Police Executive Forum) | Opposing | GA87 |
| Larry Murphy | Iowa Police Chief Association (FKA Iowa Police Executive Forum) | Opposing | GA87 |
| Jamie Cashman | Iowa State Association of Counties | Opposing | GA87 |
| Kristi Harshbarger | Iowa State Association of Counties | Opposing | GA87 |
| Lucas Beenken | Iowa State Association of Counties | Opposing | GA87 |
| William Peterson | Iowa State Association of Counties | Opposing | GA87 |
| Jamie Cashman | Iowa State Association of County Supervisors | Opposing | GA87 |
| Kristi Harshbarger | Iowa State Association of County Supervisors | Opposing | GA87 |
| Lucas Beenken | Iowa State Association of County Supervisors | Opposing | GA87 |
| William Peterson | Iowa State Association of County Supervisors | Opposing | GA87 |
| Doug Struyk | Iowa State Bar Association | Withdrawn | GA87 |
| Doug Struyk | Iowa State Bar Association | Undecided | GA87 |
| Jennifer Dorman | Iowa State Bar Association | Withdrawn | GA87 |
| Jennifer Dorman | Iowa State Bar Association | Undecided | GA87 |
| Jim Carney | Iowa State Bar Association | Withdrawn | GA87 |
| Jim Carney | Iowa State Bar Association | Undecided | GA87 |
| Erich Schmidt | Laborers International Union of North America | Opposing | GA87 |
| Gary Grant | Linn County Board of Supervisors | Opposing | GA87 |
| Larry Murphy | Linn County Board of Supervisors | Opposing | GA87 |
| Meghan Malloy | Linn County Board of Supervisors | Opposing | GA87 |
| Ben Hammes | Master Builders of Iowa | Opposing | GA87 |
| Ben Hammes | Master Builders of Iowa | Undecided | GA87 |
| Chad Kleppe | Master Builders of Iowa | Opposing | GA87 |
| Chad Kleppe | Master Builders of Iowa | Undecided | GA87 |
| Julie Smith | Master Builders of Iowa | Opposing | GA87 |
| Julie Smith | Master Builders of Iowa | Undecided | GA87 |
| Brian Johnson | Mechanical Contractors Association of Iowa (MCAI) | Opposing | GA87 |
| Craig Walter | Mechanical Contractors Association of Iowa (MCAI) | Opposing | GA87 |
| David Adelman | Metropolitan Coalition | Opposing | GA87 |
| David Adelman | Metropolitan Coalition | Undecided | GA87 |
| Frank Chiodo | Metropolitan Coalition | Opposing | GA87 |
| Frank Chiodo | Metropolitan Coalition | Undecided | GA87 |
| Matt Hinch | Metropolitan Coalition | Opposing | GA87 |
| Matt Hinch | Metropolitan Coalition | Undecided | GA87 |
| Sara Allen | Metropolitan Coalition | Opposing | GA87 |
| Sara Allen | Metropolitan Coalition | Undecided | GA87 |
| Brian Johnson | NECA - Iowa (NEC) | Opposing | GA87 |
| Craig Walter | NECA - Iowa (NEC) | Opposing | GA87 |
| Cody Carlson | National Federation of Independent Business (NFIB /IA) | Supporting | GA87 |
| Felicia Hilton | North Central States Regional Council of Carpenters | Opposing | GA87 |
| Donna Orton | North Iowa Area Community College | Undecided | GA87 |
| Tom Cope | Personal Interest-Tom Cope | Opposing | GA87 |
| Emily Piper | Piper Jaffray | Opposing | GA87 |
| Emily Piper | Piper Jaffray | Undecided | GA87 |
| Christopher Rants | Plumbers and Steam Fitters Local 33 | Opposing | GA87 |
| John Cacciatore | Plumbers and Steam Fitters Local 33 | Opposing | GA87 |
| Brian Johnson | Polk County - Board of Supervisors | Opposing | GA87 |
| Craig Walter | Polk County - Board of Supervisors | Opposing | GA87 |
| Amy Campbell | Professional Developers of Iowa (PDI) | Opposing | GA87 |
| Amy Campbell | Professional Developers of Iowa (PDI) | Undecided | GA87 |
| Craig Patterson | Professional Developers of Iowa (PDI) | Opposing | GA87 |
| Craig Patterson | Professional Developers of Iowa (PDI) | Undecided | GA87 |
| David Adelman | Sheet Metal Contractors of Iowa | Undecided | GA87 |
| Frank Chiodo | Sheet Metal Contractors of Iowa | Undecided | GA87 |
| Matt Hinch | Sheet Metal Contractors of Iowa | Undecided | GA87 |
| Sara Allen | Sheet Metal Contractors of Iowa | Undecided | GA87 |
| Gary Grant | Urban County Coalition | Opposing | GA87 |
| Larry Murphy | Urban County Coalition | Opposing | GA87 |
| Meghan Malloy | Urban County Coalition | Opposing | GA87 |