| Siegel Public Affairs, LLC | America Votes | Supporting | 2017-2018 |
| Siegel Long Public Affairs, LLC | CIRC-Colorado Immigrant Rights Coaltion Action Fund | Supporting | 2017-2018 |
| Siegel Public Affairs, LLC | CIRC-Colorado Immigrant Rights Coaltion Action Fund | Supporting | 2017-2018 |
| Lombard & Clayton, Inc. | COLORADO HISTORICAL SOCIETY | Monitoring | 2017-2018 |
| Lewis Roca Rothgerber Christie LLP | Colorado Catholic Conference | Opposing | 2017-2018 |
| Recht Kornfeld PC | Colorado Catholic Conference | Opposing | 2017-2018 |
| Siegel Long Public Affairs, LLC | Colorado Common Cause | Supporting | 2017-2018 |
| Siegel Public Affairs, LLC | Colorado Common Cause | Supporting | 2017-2018 |
| Anderson, Pamela | Colorado County Clerks Association | Monitoring | 2017-2018 |
| BATEY, MICHELLE C | Colorado County Clerks Association | Monitoring | 2017-2018 |
| Deborah A. Wagner, LLC | Colorado Historical Society | Monitoring | 2017-2018 |
| Huelsman, Kyle Michael | Colorado Immigrant Rights Coalition | Supporting | 2017-2018 |
| Siegel Long Public Affairs, LLC | Colorado Organization for Latina Opportunity and Reproductive Rights (COLOR) | Supporting | 2017-2018 |
| Siegel Public Affairs, LLC | Colorado Organization for Latina Opportunity and Reproductive Rights (COLOR) | Supporting | 2017-2018 |
| Steele, Elizabeth | Common Cause | Supporting | 2017-2018 |
| Squire Patton Boggs (US) LLP | Knights of Columbus | Opposing | 2017-2018 |
| Siegel Long Public Affairs, LLC | Padres & Jovenes Unidos | Supporting | 2017-2018 |
| Siegel Long Public Affairs, LLC | Padres y Jovenes Unidos | Supporting | 2017-2018 |
| Siegel Public Affairs, LLC | Padres y Jovenes Unidos | Supporting | 2017-2018 |