Below is a current list of registrants.
| Full Name | Company |
|---|---|
| Jonathan Kelly | Wright Water Engineers |
| Kelsey Kijowski | City and County of Denver |
| Tania Kilcullen | City of Aurora |
| Laura Kindt | AECOM |
| Kate Klavon | WSP |
| Kevin Klimek | AECOM |
| Daniel Knapp | Anthem Structural Engineering |
| Katie Knapp | City of Boulder |
| Jack Knaub | Hanes Geo Components |
| Matt Knight | City of Arvada |
| Chris Knott | BT Construction, Inc. |
| Greg Koch | Anderson Consulting Engineers, Inc. |
| Catherine Kornbrust | BT Construction, Inc. |
| Dave Kotz | SGM |
| Matt Kozakowski | City of Aurora |
| Robert Krehbiel | Matrix Design Group |
| Dave Krickbaum | Olsson Associates |
| Christopher Kroeger | Muller Engineering Company |
| Laura Kroeger | Urban Drainage and Flood Control District |
| Joe Kubala | Town of Lyons |
| Scott Kuhna | City of Boulder |
| Tina Kurtz | Larimer County Engineering |
| Dean Lamanna | Triton Environmental |
| Frans Lambrechtsen | Jacobs |
| Adam Lancaster | City of Canon City |
| Jessica La Pierre | City of Aurora |
| Duane Launder | City of Aurora |
| Lisa Lauver | Stantec Consulting |
| Alan Leak | Respec |
| Eric Lessard | City of Loveland |
| Mike Lesser | Contech Engineered Solutions LLC |
| Kevin Lewis | City of Denver Wastewater |
| Dane Liljestrand | Wood |
| James Lindsay | Michael Baker International |
| Ben Liu | Matrix Design Group |
| Suping (Sue) Liu | Arapahoe County |
| Daniel Loewen | Loewen Engineering, Inc |
| April Long | City of Aspen |
| Michael Lopes | Calibre Engineering |
| John Loranger | Wood |
| Cynthia Love | SEMSWA |
| Mike Lozano | City of Boulder |
| Drake Ludwig | Matrix Design Group |
| Morgan Lynch | Urban Drainage and Flood Control District |
| Scott Mai | Mesa County |
| David Mallory | Western Light Consulting Services |
| Jason Margraf | J3 Engineering Consultants, Inc. |
| Maggie Mathis | Dewberry |
| Dale Mathison | Ayres Associates |
| Ken Matthews | Merrick |