| Aponte Public Affairs, Inc. | American Academy of Pediatrics ( AAP) | Opposing | 2019-2020 |
| Aponte Public Affairs, Inc. | American Academy of Pediatrics (AAP) | Monitoring | 2019-2020 |
| Mendez, Barkis and Associates | American Civil Liberties Union of Colorado | Supporting | 2019-2020 |
| IRWIN, LESLIE | BOULDER COUNTY | Opposing | 2019-2020 |
| AKL, Inc. | COLORADO CHILDRENS ALLIANCE | Monitoring | 2019-2020 |
| Colorado Counties Inc | COLORADO COUNTIES, INC | Monitoring | 2019-2020 |
| Ascent Strategies, LLC | COLORADO PARENTS FOR VACCINATED COMMUNITIES | Opposing | 2019-2020 |
| Ascent Strategies, LLC | COLORADO PARENTS FOR VACCINATED COMMUNITIES | Monitoring | 2019-2020 |
| REES CONSULTING AND PUBLIC AFFAIRS | Centura Health | Monitoring | 2019-2020 |
| Aponte Public Affairs, Inc. | Children's Hospital Colorado (CHCO) | Opposing | 2019-2020 |
| Aponte Public Affairs, Inc. | Children's Hospital Colorado (CHCO) | Monitoring | 2019-2020 |
| Martin, Carolyn | Christian Home Educators of Colorado | Supporting | 2019-2020 |
| Price, David L | Christian Science Committee on Publication for Colorado | Monitoring | 2019-2020 |
| Brandeberry McKenna Public Affairs | City and County of Denver | Opposing | 2019-2020 |
| Swift Strategies LLC | City and County of Denver | Opposing | 2019-2020 |
| Capitol Capital Partners LLC | City of Aurora | Monitoring | 2019-2020 |
| REES CONSULTING AND PUBLIC AFFAIRS | City of Aurora | Monitoring | 2020-2021 |
| Colorado Children's Campaign | Colorado Children's Campaign | Opposing | 2019-2020 |
| Miller, Erin Ashley | Colorado Children's Campaign | Opposing | 2019-2020 |
| Anderson, Polly | Colorado Community Health Network | Opposing | 2019-2020 |
| Brooks, Stephanie | Colorado Community Health Network | Opposing | 2019-2020 |
| Steiner, Alice | Colorado Community Health Network | Opposing | 2019-2020 |
| BRANDEBERRY MCKENNA PUBLIC AFFAIRS | Colorado Hospital Association | Monitoring | 2019-2020 |
| Burkhart, Amber | Colorado Hospital Association | Monitoring | 2019-2020 |
| Ewing, Joshua | Colorado Hospital Association | Monitoring | 2019-2020 |
| MULREADY, KATHERINE | Colorado Hospital Association | Monitoring | 2019-2020 |
| Anderson, Angela Lauren | Colorado Parents for Vaccinated Communities | Opposing | 2019-2020 |
| Anderson, Angela Lauren | Colorado Parents for Vaccinated Communities | Monitoring | 2019-2020 |
| Cooke, Michael Michael | Council for a Strong America | Monitoring | 2019-2020 |
| Worley, Melanie | Council for a Strong America | Monitoring | 2019-2020 |
| Denver Human Services | Denver Human Services | Opposing | 2019-2020 |
| Cavan Consulting | Fostering Colorado | Monitoring | 2019-2020 |
| Capitol Focus, LLC | GLAXOSMITHKLINE | Monitoring | 2019-2020 |
| Williams, Alyson Brozovich | Health District of Northern Larimer County | Monitoring | 2019-2020 |
| Aponte Public Affairs, Inc. | Immunize Colorado (IZCO) | Monitoring | 2019-2020 |
| Aponte Public Affairs, Inc. | Immunize Colorado (IZCO) | Opposing | 2019-2020 |
| Emma Hudson Consulting LLC | Interfaith Alliance | Monitoring | 2019-2020 |
| Emma Hudson Consulting LLC | Interfaith Alliance | Supporting | 2019-2020 |
| J William Artist & Associates, INC. | J . William Artist & Associates | Monitoring | 2019-2020 |
| The Capstone Group, LLC | KEMPE FOUNDATION FOR THE PREVENTION AND TREATMENT OF CHILD ABUSE | Monitoring | 2019-2020 |
| J. William Artist & Associates, Inc. | Merck Sharp & Dohme Corporation | Opposing | 2019-2020 |