| Morgan Miller | AFSCME Iowa Council 61 | Supporting | GA88 |
| Barry Snell | Cedar Falls Mobile Home Village | Opposing | GA88 |
| Jon Murphy | City of Coralville | Supporting | GA88 |
| Tom Cope | City of Coralville | Supporting | GA88 |
| Doug Struyk | City of Iowa City | Supporting | GA88 |
| Jennifer Dorman | City of Iowa City | Supporting | GA88 |
| Jim Carney | City of Iowa City | Supporting | GA88 |
| Luke Elzinga | Des Moines Area Religious Council | Undecided | GA88 |
| Michael Triplett | Greater Iowa Apartment Association | Supporting | GA88 |
| Eric Goranson | Habitat for Humanity of Iowa | Supporting | GA88 |
| Jay Iverson | Home Builders Association of Iowa | Undecided | GA88 |
| Jay Iverson | Home Builders Association of Iowa | Withdrawn | GA88 |
| Jay Iverson | Home Builders Association of Iowa | Opposing | GA88 |
| Maddie Wilcox | IBEW Iowa State Conference | Supporting | GA88 |
| Maddie Wilcox | IBEW Iowa State Conference | Undecided | GA88 |
| Threase Harms | IBEW Iowa State Conference | Supporting | GA88 |
| Threase Harms | IBEW Iowa State Conference | Undecided | GA88 |
| Michael McCarthy | Iowa Alliance For Retired Americans | Supporting | GA88 |
| Jennifer Kingland | Iowa Association of Realtors | Undecided | GA88 |
| Nathan Blake | Iowa Attorney General Dept. of Justice | Supporting | GA88 |
| Larry Murphy | Iowa Catholic Conference | Supporting | GA88 |
| Meghan Malloy | Iowa Catholic Conference | Supporting | GA88 |
| Tom Chapman | Iowa Catholic Conference | Supporting | GA88 |
| Brian Carter | Iowa Conference of United Methodist Church | Undecided | GA88 |
| Carolyn Uhlenhake-Walker | Iowa Conference of United Methodist Church | Undecided | GA88 |
| Gary Nims | Iowa Conference of United Methodist Church | Undecided | GA88 |
| Rita Carter | Iowa Conference of United Methodist Church | Undecided | GA88 |
| Roberta Paige | Iowa Conference of United Methodist Church | Undecided | GA88 |
| Gracie Brandsgard | Iowa Credit Union League | Undecided | GA88 |
| Justin Hupfer | Iowa Credit Union League | Undecided | GA88 |
| Charlie Wishman | Iowa Federation of Labor, AFL-CIO | Supporting | GA88 |
| Kristin Hanks-Bents | Iowa Finance Authority | Undecided | GA88 |
| Bob Rafferty | Iowa Housing Partnership | Undecided | GA88 |
| Rachel Ong | Iowa Housing Partnership | Undecided | GA88 |
| Alan Kemp | Iowa League of Cities | Undecided | GA88 |
| Daniel Stalder | Iowa League of Cities | Undecided | GA88 |
| Robert Palmer | Iowa League of Cities | Undecided | GA88 |
| Joe Kelly | Iowa Manufactured Housing Association | Opposing | GA88 |
| Sydney Gangestad | Iowa Manufactured Housing Association | Opposing | GA88 |
| Tim Coonan | Iowa Manufactured Housing Association | Opposing | GA88 |
| Mike Heller | Iowa State Association of Assessors | Undecided | GA88 |
| Paula Feltner | Iowa State Association of Assessors | Undecided | GA88 |
| Doug Struyk | Iowa State Bar Association | Undecided | GA88 |
| Jennifer Dorman | Iowa State Bar Association | Undecided | GA88 |
| Jim Carney | Iowa State Bar Association | Undecided | GA88 |
| Gary Grant | Linn County Board of Supervisors | Undecided | GA88 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA88 |
| Meghan Malloy | Linn County Board of Supervisors | Undecided | GA88 |
| Amy Campbell | Professional Developers of Iowa (PDI) | Undecided | GA88 |
| Craig Patterson | Professional Developers of Iowa (PDI) | Undecided | GA88 |
| Angie Long | The Family Leader | Supporting | GA88 |
| Chuck Hurley | The Family Leader | Supporting | GA88 |
| Daniel Sunne | The Family Leader | Supporting | GA88 |
| Danny Carroll | The Family Leader | Supporting | GA88 |
| Angie Long | The Family Leader Foundation | Supporting | GA88 |
| Chuck Hurley | The Family Leader Foundation | Supporting | GA88 |
| Daniel Sunne | The Family Leader Foundation | Supporting | GA88 |
| Danny Carroll | The Family Leader Foundation | Supporting | GA88 |
| Greg Baker | The Family Leader Foundation | Supporting | GA88 |
| Madeline Crook | The Family Leader Foundation | Supporting | GA88 |
| Gary Grant | Urban County Coalition | Supporting | GA88 |
| Gary Grant | Urban County Coalition | Withdrawn | GA88 |
| Gary Grant | Urban County Coalition | Undecided | GA88 |
| Larry Murphy | Urban County Coalition | Supporting | GA88 |
| Larry Murphy | Urban County Coalition | Withdrawn | GA88 |
| Larry Murphy | Urban County Coalition | Undecided | GA88 |
| Meghan Malloy | Urban County Coalition | Supporting | GA88 |
| Meghan Malloy | Urban County Coalition | Withdrawn | GA88 |
| Meghan Malloy | Urban County Coalition | Undecided | GA88 |