| Sandra Conlin | Associated Builders & Contractors of Iowa | Opposing | GA87 |
| Brad Epperly | BNSF Railway Co. | Undecided | GA87 |
| Dustin Miller | BNSF Railway Co. | Undecided | GA87 |
| Paige Thorson | BNSF Railway Co. | Undecided | GA87 |
| Paula Dierenfeld | BNSF Railway Co. | Undecided | GA87 |
| Thomas Jochum | Central Iowa Building Construction Trades Council | Undecided | GA87 |
| Doug Struyk | City of Des Moines | Opposing | GA87 |
| Jen Schulte | City of Des Moines | Opposing | GA87 |
| Jim Carney | City of Des Moines | Opposing | GA87 |
| Shannon Henson | City of Des Moines | Opposing | GA87 |
| James Piazza, Jr. | Heavy Highway Contractors Association | Opposing | GA87 |
| Jay Iverson | Home Builders Association of Iowa | Opposing | GA87 |
| Jay Iverson | Home Builders Association of Iowa | Undecided | 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 |
| Mike Heller | Iowa Academy of Trial Lawyers | Undecided | GA87 |
| Paula Feltner | Iowa Academy of Trial Lawyers | Undecided | GA87 |
| Michael Triplett | Iowa Alliance of Surety Companies | Supporting | GA87 |
| Angela Davis | Iowa Association for Justice | Opposing | GA87 |
| Bill Wimmer | Iowa Association for Justice | Opposing | GA87 |
| Brad Lint | Iowa Association for Justice | Opposing | GA87 |
| Lisa Davis-Cook | Iowa Association for Justice | Opposing | GA87 |
| Jennifer Kingland | Iowa Association of Realtors | Undecided | GA87 |
| Emily Piper | Iowa Association of School Boards | Opposing | GA87 |
| Phil Jeneary | Iowa Association of School Boards | Opposing | GA87 |
| Eric Tabor | Iowa Attorney General Dept. of Justice | Opposing | GA87 |
| Robert Hartwig | Iowa Bankers Association | Undecided | GA87 |
| Sharon Presnall | Iowa Bankers Association | Undecided | GA87 |
| Robert Hartwig | Iowa Bankers Mortgage Corp. | Undecided | GA87 |
| Sharon Presnall | Iowa Bankers Mortgage Corp. | Undecided | GA87 |
| Brad Epperly | Iowa Chapter, American Institute of Architects | Undecided | GA87 |
| Dustin Miller | Iowa Chapter, American Institute of Architects | Undecided | GA87 |
| Paige Thorson | Iowa Chapter, American Institute of Architects | Undecided | GA87 |
| Paula Dierenfeld | Iowa Chapter, American Institute of Architects | Undecided | GA87 |
| Doug Struyk | Iowa Commercial Real Estate Association (ICREA) | Undecided | GA87 |
| Jim Carney | Iowa Commercial Real Estate Association (ICREA) | Undecided | GA87 |
| Shannon Henson | Iowa Commercial Real Estate Association (ICREA) | Undecided | GA87 |
| Doug Struyk | Iowa Competitive Bidding Alliance, Inc. | Undecided | GA87 |
| Jim Carney | Iowa Competitive Bidding Alliance, Inc. | Undecided | GA87 |
| Shannon Henson | Iowa Competitive Bidding Alliance, Inc. | Undecided | GA87 |
| Christopher Rants | Iowa Credit Union League | Undecided | GA87 |
| John Cacciatore | Iowa Credit Union League | Undecided | GA87 |
| Jon Murphy | Iowa Credit Union League | Undecided | GA87 |
| Justin Hupfer | Iowa Credit Union League | Undecided | GA87 |
| Lon Anderson | Iowa Credit Union League | Undecided | GA87 |
| Mikel Derby | Iowa Dept. of Transportation | Undecided | GA87 |
| Charlie Wishman | Iowa Federation of Labor, AFL-CIO | Opposing | GA87 |
| Charlie Wishman | Iowa Federation of Labor, AFL-CIO | Withdrawn | GA87 |
| Charlie Wishman | Iowa Federation of Labor, AFL-CIO | Undecided | GA87 |
| Wes Peterson | Iowa Finance Authority | Undecided | GA87 |
| Mike St. Clair | Iowa Land Title 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 |
| Angela Davis | Iowa Lumber Association | Opposing | GA87 |
| Angela Davis | Iowa Lumber Association | Undecided | GA87 |
| Bill Wimmer | Iowa Lumber Association | Opposing | GA87 |
| Bill Wimmer | Iowa Lumber Association | Undecided | GA87 |
| Robert Hartwig | Iowa Mortgage Association | Undecided | GA87 |
| Sharon Presnall | Iowa Mortgage Association | Undecided | GA87 |
| Emily Piper | Iowa Rural Water Association | Opposing | GA87 |
| Doug Struyk | Iowa State Bar Association | Undecided | GA87 |
| Jim Carney | Iowa State Bar Association | Undecided | GA87 |
| Shannon Henson | Iowa State Bar Association | Undecided | GA87 |
| tom fey | Iowa State Building and Construction Trades Council | Opposing | GA87 |
| tom fey | Iowa State Building and Construction Trades Council | Undecided | 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) | Opposing | 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 |
| Eric Goranson | Plumbing Heating & Cooling Contractors of IA | Opposing | GA87 |
| Eric Goranson | Plumbing Heating & Cooling Contractors of IA | Undecided | GA87 |
| Brian Johnson | Polk County - Board of Supervisors | Undecided | GA87 |
| David Adelman | Sheet Metal Contractors of Iowa | Opposing | GA87 |
| David Adelman | Sheet Metal Contractors of Iowa | Undecided | GA87 |
| Frank Chiodo | Sheet Metal Contractors of Iowa | Opposing | GA87 |
| Frank Chiodo | Sheet Metal Contractors of Iowa | Undecided | GA87 |
| Matt Hinch | Sheet Metal Contractors of Iowa | Opposing | GA87 |
| Matt Hinch | Sheet Metal Contractors of Iowa | Undecided | GA87 |
| Sara Allen | Sheet Metal Contractors of Iowa | Opposing | GA87 |
| Sara Allen | Sheet Metal Contractors of Iowa | Undecided | GA87 |
| Eric Goranson | Union Pacific Railroad | Undecided | GA87 |
| Karla Fultz McHenry | Union Pacific Railroad | Undecided | GA87 |
| Michael Triplett | Union Pacific Railroad | Undecided | GA87 |
| Doug Struyk | Wells Fargo & Company | Undecided | GA87 |
| Jim Carney | Wells Fargo & Company | Undecided | GA87 |
| Shannon Henson | Wells Fargo & Company | Undecided | GA87 |