| Mendez, Barkis and Associates | American Civil Liberties Union of Colorado | Opposing | 2017-2018 |
| Brownstein Hyatt Farber Schreck, LLP | CITY OF COLORADO SPRINGS | Monitoring | 2017-2018 |
| 5280 Strategies | COUNTY SHERIFFS OF COLORADO | Supporting | 2017-2018 |
| McGihon, Anne | Colorado Ceasefire Legislative Action | Supporting | 2017-2018 |
| Mendez, Barkis and Associates | Colorado Criminal Defense Bar | Opposing | 2017-2018 |
| Thompson, Carrie Lynn | Colorado Criminal Defense Bar | Opposing | 2017-2018 |
| Colorado District Attorneys' Council | Colorado District Attorneys' Council | Monitoring | 2017-2018 |
| Colorado District Attorneys' Council | Colorado District Attorneys' Council | Supporting | 2017-2018 |
| Frontline Public Affairs (Miles Consulting, Inc.) | Colorado Fraternal Order of Police | Supporting | 2017-2018 |
| Headwaters Strategies | Everytown for Gun Safety Action Fund | Monitoring | 2017-2018 |
| Allied Agenda, LLC | League of Women Voters of Colorado | Supporting | 2017-2018 |
| Miles Consulting Inc dba Frontline Public Affairs | MILES CONSULTING dba Frontline Public Affairs | Supporting | 2017-2018 |
| MERIDIAN PUBLIC AFFAIRS LLC | Miles Consulting dba Frontline Public Affairs | Supporting | 2017-2018 |
| ProtoStrategies | Miles Consulting, Inc dba Frontline Public Affairs | Supporting | 2017-2018 |
| Miles Consulting, Inc. dba Frontline Public Affairs | Miles Consulting, Inc. dba Frontline Public Affairs | Supporting | 2017-2018 |
| Murphy, Daniel | National Association for Gun Rights | Monitoring | 2017-2018 |
| Holland & Hart LLP | National Shooting Sports Foundation | Supporting | 2017-2018 |
| West Group | National Shooting Sports Foundation | Supporting | 2017-2018 |
| Murphy, Daniel | Rocky Mountain Gun Owners | Monitoring | 2017-2018 |