Below is a current list of registrants.
| Full Name | Company |
|---|---|
| Kyntashia | Original Ambassador |
| Lonzel | Junior Ambassador |
| Phranklin | Original Ambassador |
| Rose | Junior Ambassador |
| Tavi | Original Ambassador |
| Tomas | Original Ambassador |
| Virgyl | Junior Ambassador |
| Richard Abeyta | City & County of Denver-Denver Wastewater |
| Sam Acosta | HDR |
| Pam Acre | City of Northglenn |
| Matt Adams | Felsburg Holt & Ullevig |
| Graeme Aggett | Lynker |
| Suleyman Akalin | Calibre Engineering |
| Jason Albert | Anderson Consulting Engineers, Inc. |
| Jody Allen | ECI Site Construction Management |
| Katie Allen | City & County of Broomfield |
| Anthony Alvarado | Ayres Associates |
| Bobby Anastasov | City of Aurora |
| Beck Anderson | City of Fort Collins |
| Russ Anderson | Michael Baker International |
| Tim Anderson | Contech Engineered Solutions LLC |
| Carlos Andrade | Maccaferri, Inc. |
| John Andrews | El Paso County - Department of Public Works |
| Laura Armstrong | Jefferson County Planning and Zoning |
| Diana Aungst | Weld County Planning |
| Mark Austin | Austin Civil Group, Inc. |
| Joshua Baile | CDM Smith |
| Kyle Baker | Mortenson |
| Rebecca Baker | City & County of Broomfield |
| Aaron Balderas | Jefferson County |
| Alana Bales | Kiewit Infrastructure Engineers |
| Mike Bannister | RESPEC |
| Jessica Barr | AECOM |
| Colin Barry | Enginuity Engineering Solutions |
| Virginia Batts | Boulder County |
| Kurt Bauer | Mile High Flood District |
| Ward Bauscher | City of Boulder |
| Todd Beattie | La Plata County |
| Drew Beck | Matrix Design Group |
| Allie Beikmann | Dewberry | J3 |
| Benjamin Beisler | Wilson & Company, Inc. |
| Janet Bender | City of Aurora - Public Works |
| Theodore Bender | City of Fort Collins |
| Abigail Benenati | AECOM |
| Tim Benenati | AECOM |
| V. Claire Bennett | Harris Kocher Smith |
| Brad Bettag | Wood |
| Dani-Ella Betz | SEMSWA |
| Kevin Binkly | City of Colorado Springs, Water Resources Engineering Division |
| Timothy Biolchini | City of Colorado Springs, Water Resources Engineering Division |