| Hamilton, Sarah E | AFT Colorado | Supporting | 2018-2019 |
| Siegel Long Public Affairs, LLC | AFT Colorado | Supporting | 2018-2019 |
| Siegel Public Affairs, LLC | AFT Colorado | Supporting | 2018-2019 |
| Axiom Strategies Inc dba Axiom Politics | AURORA CHAMBER OF COMMERCE | Monitoring | 2018-2019 |
| HB Strategies | AURORA CHAMBER OF COMMERCE | Monitoring | 2018-2019 |
| Case, Ryan Desco | American Federation of Teachers - Colorado | Supporting | 2018-2019 |
| Americans for Prosperity | Americans for Prosperity | Opposing | 2018-2019 |
| Skewes Government Affairs, LLC | Association of Colorado State Patrol Professionals | Monitoring | 2018-2019 |
| Dougherty, Dennis J | Colorado AFL-CIO | Supporting | 2018-2019 |
| Lindgren, Robert Rolf | Colorado AFL-CIO | Supporting | 2018-2019 |
| Red Rocks Strategies, LLC | Colorado AFL-CIO | Supporting | 2018-2019 |
| Colorado Citizens for Right to Work | Colorado Citizens for Right to Work | Opposing | 2018-2019 |
| Kirchhof Group Inc | Colorado Concern | Opposing | 2018-2019 |
| Kopp, Mike | Colorado Concern | Opposing | 2018-2019 |
| Frontline Public Affairs (Miles Consulting, Inc.) | Colorado Fraternal Order of Police | Supporting | 2018-2019 |
| Deborah A. Wagner, LLC | Colorado Historical Society | Monitoring | 2018-2019 |
| Siegel Long Public Affairs, LLC | Colorado Organization for Latina Opportunity and Reproductive Rights (COLOR) | Supporting | 2018-2019 |
| Siegel Public Affairs, LLC | Colorado Organization for Latina Opportunity and Reproductive Rights (COLOR) | Supporting | 2018-2019 |
| Axiom Strategies Inc dba Axiom Politics | Colorado Public Employees Retirement Association (PERA) | Monitoring | 2018-2019 |
| Mendez, Barkis and Associates | Colorado Sierra Club | Supporting | 2018-2019 |
| Headwaters Strategies | Colorado Wins | Supporting | 2018-2019 |
| BRANDEBERRY MCKENNA PUBLIC AFFAIRS | Denver Metro Chamber of Commerce | Opposing | 2018-2019 |
| Brown, Debra Suzanne | Good Business Colorado | Supporting | 2018-2019 |
| Lombard & Clayton, Inc. | HISTORY COLORADO | Monitoring | 2018-2019 |
| MERIDIAN PUBLIC AFFAIRS LLC | Miles Consulting dba Frontline Public Affairs | Supporting | 2018-2019 |
| ProtoStrategies | Miles Consulting, Inc dba Frontline Public Affairs | Supporting | 2018-2019 |
| Miles Consulting, Inc. dba Frontline Public Affairs | Miles Consulting, Inc. dba Frontline Public Affairs | Supporting | 2018-2019 |
| Mendez, Barkis and Associates | Planned Parenthood of the Rocky Mountains | Supporting | 2018-2019 |
| Teter, John K Edge | Planned Parenthood of the Rocky Mountains | Supporting | 2018-2019 |
| MARTENS, LAUREN W. | SERVICE EMPLOYEES INTERNATIONAL UNION | Supporting | 2018-2019 |
| SMART-Transportation Division | SMART-Transportation Division | Supporting | 2018-2019 |
| Huelsman, Kyle Michael | SiX Action | Supporting | 2018-2019 |
| Jones, Richard R | THE BELL POLICY CENTER | Supporting | 2018-2019 |