| Siegel Long Public Affairs, LLC | AFT Colorado | Supporting | 2018-2019 |
| Siegel Public Affairs, LLC | AFT Colorado | Supporting | 2018-2019 |
| Ascent Strategies, LLC | AMERICAN CHEMISTRY COUNCIL | Monitoring | 2018-2019 |
| DOME STRATEGIES | American Chemistry Council | Monitoring | 2018-2019 |
| Colorado Advocates, Inc. | BURLINGTON NORTHERN SANTA FE RAILWAY | Opposing | 2018-2019 |
| HB Strategies | CITY OF COMMERCE CITY | Monitoring | 2018-2019 |
| Politicalworks, LLC | COLORADO COMPETITIVE COUNCIL | Opposing | 2018-2019 |
| Politicalworks, LLC | COLORADO COMPETITVE COUNCIL | Opposing | 2018-2019 |
| Axiom Strategies Inc dba Axiom Politics | City of Commerce City | Monitoring | 2018-2019 |
| Attwood Public Affairs | City of Westminster | Monitoring | 2018-2019 |
| Siegel Long Public Affairs, LLC | City of Westminster | Monitoring | 2018-2019 |
| Siegel Public Affairs, LLC | City of Westminster | 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 Advocates, Inc. | Colorado Advocates Inc. | Opposing | 2018-2019 |
| Colorado Chamber of Commerce | Colorado Chamber of Commerce | Opposing | 2018-2019 |
| Skewes Government Affairs, LLC | Colorado Chamber of Commerce | Opposing | 2018-2019 |
| Belgard, Katie A | Conservation Colorado | Supporting | 2018-2019 |
| Mayott-Guerrero, Sophia M | Conservation Colorado | Supporting | 2018-2019 |
| Siegel Long Public Affairs, LLC | Conservation Colorado | Supporting | 2018-2019 |
| Siegel Public Affairs, LLC | Conservation Colorado | Supporting | 2018-2019 |
| Meisinger, Richard Allen Jr. | IBEW Local 111 | Supporting | 2018-2019 |
| HB Strategies | PARKER AUTHORITY FOR REINVESTMENT | Monitoring | 2018-2019 |
| G BERRY CORP | PEABODY | Monitoring | 2018-2019 |
| Axiom Strategies Inc dba Axiom Politics | Parker Authority for Reinvestment | Monitoring | 2018-2019 |
| G Berry Corp | Peabody Energy | Monitoring | 2018-2019 |
| SMART-Transportation Division | SMART-Transportation Division | Supporting | 2018-2019 |
| InterMountain Corporate Affairs | UNION PACIFIC | Opposing | 2018-2019 |
| Fulcrum Group US | Union Pacific | Opposing | 2018-2019 |
| Fulcrum Group US LLC | Union Pacific | Monitoring | 2018-2019 |
| Thompson Cassidy, Sara Rae | Union Pacific Railroad | Opposing | 2018-2019 |