| Siegel Long Public Affairs, LLC | 9to5 Colorado, The National Association of Working Women | Opposing | 2015-2016 |
| Siegel Public Affairs, LLC | 9to5 Colorado, The National Association of Working Women | Opposing | 2015-2016 |
| Siegel Long Public Affairs, LLC | AMERICA VOTES | Opposing | 2015-2016 |
| Range PC | America Votes | Opposing | 2015-2016 |
| Siegel Public Affairs, LLC | America Votes | Opposing | 2015-2016 |
| Tierney, Martha Moore | America Votes | Opposing | 2015-2016 |
| Mendez, Barkis and Associates | American Civil Liberties Union | Opposing | 2015-2016 |
| Mendez, Barkis and Associates | American Civil Liberties Union of Colorado | Opposing | 2015-2016 |
| NUNEZ, ELENA M | COMMON CAUSE | Opposing | 2015-2016 |
| Range PC | Citizens for Integrity | Opposing | 2015-2016 |
| Tierney, Martha Moore | Citizens for Integrity | Opposing | 2015-2016 |
| Gilchrist, Samuel Tawney | Colorado AFL-CIO | Opposing | 2015-2016 |
| Ms. | Colorado AFL-CIO | Opposing | 2015-2016 |
| Siegel Long Public Affairs, LLC | Colorado Common Cause | Opposing | 2015-2016 |
| Siegel Public Affairs, LLC | Colorado Common Cause | Opposing | 2015-2016 |
| Anderson, Pamela | Colorado County Clerks Association | Monitoring | 2015-2016 |
| BATEY, MICHELLE C | Colorado County Clerks Association | Monitoring | 2015-2016 |
| Colorado Cross-Disability Coalition | Colorado Cross-Disability Coalition | Opposing | 2015-2016 |
| Bartels, Bradley C | Colorado Education Association | Opposing | 2015-2016 |
| Siegel Long Public Affairs, LLC | Colorado Fiscal Institute | Monitoring | 2015-2016 |
| Siegel Public Affairs LLC | Colorado Fiscal Institute | Monitoring | 2015-2016 |
| Siegel Long Public Affairs, LLC | Colorado Organization for Latina Opportunity and Reproductive Rights (COLOR) | Opposing | 2015-2016 |
| Siegel Public Affairs, LLC | Colorado Organization for Latina Opportunity and Reproductive Rights (COLOR) | Opposing | 2015-2016 |
| Long, Rebecca | Conservation Colorado | Opposing | 2015-2016 |
| Siegel Long Public Affairs, LLC | Conservation Colorado | Opposing | 2015-2016 |
| Siegel Public Affairs, LLC | Conservation Colorado | Opposing | 2015-2016 |
| The Clement Group | Dominion Voting | Monitoring | 2015-2016 |
| Siegel Long Public Affairs, LLC | NARAL Pro-Choice Colorado | Opposing | 2015-2016 |
| Siegel Public Affairs LLC | NARAL Pro-Choice Colorado | Opposing | 2015-2016 |
| Stephan, Elizabeth | New Era Colorado | Opposing | 2015-2016 |
| Siegel Long Public Affairs, LLC | Padres y Jovenes Unidos | Opposing | 2015-2016 |
| Siegel Public Affairs, LLC | Padres y Jovenes Unidos | Opposing | 2015-2016 |
| SMART Union - Transportation Division | United Transportation Union | Opposing | 2015-2016 |