Below is a current list of registrants.
| Full Name | Company |
|---|---|
| Ward Bauscher | City of Boulder |
| Laurel Olsen-Horen | City of Boulder |
| Janet Bender | City of Aurora - Public Works |
| Richard Ommert | City of Aurora - Public Works |
| Brad Richardson | City of Aurora - Public Works |
| Jared Coleman | City of Aurora - Public Works |
| Mike Earnest | City of Aurora |
| Dave Pyle | City of Aurora |
| Clint Weisz | City of Aurora |
| Ryan Tigera | City of Aurora |
| Bobby Anastasov | City of Aurora |
| Jill Piatt Kemper | City of Aurora |
| Swirvine Nyirenda | City of Aurora |
| Tyler Christoff | City of Aspen |
| Jack Danneberg | City of Aspen |
| S. Justin Forman | City of Aspen |
| Jeri Pulkinen | City of Arvada |
| Robyn Brown | City of Arvada |
| David Boles | City & County of Denver Public Works |
| Jeremy Hamer | City & County of Denver Public Works |
| Brenden Marron | City & County of Denver Public Works |
| David Morrisey | City & County of Denver Public Works |
| Steve Forvilly | City & County of Denver Public Works |
| Zhixu Yuan | City & County of Denver Public Works |
| Jim Turner | City & County of Denver Public Works |
| Andy Stewart | City & County of Denver Public Works |
| Dave Jula | City & County of Denver Public Works |
| Walter Hime | City & County of Denver-Denver Wastewater |
| Richard Abeyta | City & County of Denver-Denver Wastewater |
| Mingi Sohn | City & County of Denver-Denver Wastewater |
| Stephen Choi | City & County of Denver |
| Jennifer Williams | City & County of Denver |
| Lauren Winnen | City & County of Denver |
| Kevin Lewis | City & County of Denver |
| Gina Vargas | City & County of Denver |
| Brad Cox | City & County of Denver |
| Amy Foreman | City & County of Denver |
| Matthew Deaver | City & County of Broomfield |
| Christian Thompson | City & County of Broomfield |
| Katie Allen | City & County of Broomfield |
| Rebecca Baker | City & County of Broomfield |
| Joseph Machala | CDM Smith |
| Joshua Baile | CDM Smith |
| Eli Gruber | CDM Smith |
| Garrett Sprouse | CDM Smith |
| Colin Wagoner | CALIBRE Systems |
| Caleb Nelson | Calibre Engineering |
| Suleyman Akalin | Calibre Engineering |
| Michael Lopes | Calibre Engineering |
| Alan Pagan-Rivera | Calibre Engineering |