| HB26-1011 | Supporting | Humane World for Animals (formerly Humane Society of the United States) | Colorado | 2025-2026 |
| HB26-1133 | Supporting | Humane World for Animals (formerly Humane Society of the United States) | Colorado | 2025-2026 |
| HB26-1198 | Opposing | Humane World for Animals (formerly Humane Society of the United States) | Colorado | 2025-2026 |
| HB26-1323 | Supporting | Humane World for Animals (formerly Humane Society of the United States) | Colorado | 2025-2026 |
| HB26-1342 | Supporting | Humane World for Animals (formerly Humane Society of the United States) | Colorado | 2025-2026 |
| SB26-062 | Supporting | Humane World for Animals (formerly Humane Society of the United States) | Colorado | 2025-2026 |
| SB26-123 | Supporting | Humane World for Animals (formerly Humane Society of the United States) | Colorado | 2025-2026 |
| HB25-1034 | Monitoring | Humane World for Animals (formerly Humane Society of the United States) | Colorado | 2024-2025 |
| HB25-1064 | Opposing | Humane World for Animals (formerly Humane Society of the United States) | Colorado | 2024-2025 |
| HB25-1074 | Opposing | Humane World for Animals (formerly Humane Society of the United States) | Colorado | 2024-2025 |
| HB25-1134 | Monitoring | Humane World for Animals (formerly Humane Society of the United States) | Colorado | 2024-2025 |
| HB25-1137 | Monitoring | Humane World for Animals (formerly Humane Society of the United States) | Colorado | 2024-2025 |
| HB25-1180 | Supporting | Humane World for Animals (formerly Humane Society of the United States) | Colorado | 2024-2025 |
| SB25-038 | Amending | Humane World for Animals (formerly Humane Society of the United States) | Colorado | 2024-2025 |
| SB25-049 | Supporting | Humane World for Animals (formerly Humane Society of the United States) | Colorado | 2024-2025 |
| SB25-053 | Monitoring | Humane World for Animals (formerly Humane Society of the United States) | Colorado | 2024-2025 |
| SB25-085 | Supporting | Humane World for Animals (formerly Humane Society of the United States) | Colorado | 2024-2025 |
| SB25-139 | Opposing | Humane World for Animals (formerly Humane Society of the United States) | Colorado | 2024-2025 |
| SB25-159 | Supporting | Humane World for Animals (formerly Humane Society of the United States) | Colorado | 2024-2025 |
| SB25-168 | Supporting | Humane World for Animals (formerly Humane Society of the United States) | Colorado | 2024-2025 |
| HB24-1033 | Supporting | The Humane Society of the United States | Colorado | 2023-2024 |
| HB24-1047 | Supporting | The Humane Society of the United States | Colorado | 2023-2024 |
| HB24-1074 | Supporting | The Humane Society of the United States | Colorado | 2023-2024 |
| HB24-1117 | Supporting | The Humane Society of the United States | Colorado | 2023-2024 |
| HB24-1458 | Supporting | The Humane Society of the United States | Colorado | 2023-2024 |
| SB24-067 | Supporting | The Humane Society of the United States | Colorado | 2023-2024 |
| SB24-171 | Supporting | The Humane Society of the United States | Colorado | 2023-2024 |
| HB23-1036 | Supporting | The Humane Society of the United States | Colorado | 2022-2023 |
| HB23-1068 | Supporting | The Humane Society of the United States | Colorado | 2022-2023 |
| SB23-038 | Monitoring | The Humane Society of the United States | Colorado | 2022-2023 |
| SB23-255 | Supporting | The Humane Society of the United States | Colorado | 2022-2023 |
| SB23-256 | Opposing | The Humane Society of the United States | Colorado | 2022-2023 |
| SB22-031 | Supporting | The Humane Society of the United States | Colorado | 2021-2022 |
| SB22-167 | Supporting | The Humane Society of the United States | Colorado | 2021-2022 |
| HB20-1084 | Supporting | The Humane Society of the United States | Colorado | 2019-2020 |
| HB20-1343 | Supporting | The Humane Society of the United States | Colorado | 2019-2020 |
| HB19-1092 | Supporting | The Humane Society of the United States | Colorado | 2018-2019 |
| HB19-1102 | Opposing | The Humane Society of the United States | Colorado | 2018-2019 |
| HB18-1126 | Supporting | The Humane Society of the United States | Colorado | 2017-2018 |
| SB18-137 | Opposing | The Humane Society of the United States | Colorado | 2017-2018 |
| HB17-1179 | Supporting | The Humane Society of the United States | Colorado | 2016-2017 |
| HB17-1234 | Supporting | The Humane Society of the United States | Colorado | 2016-2017 |
| SB17-136 | Monitoring | The Humane Society of the United States | Colorado | 2016-2017 |
| HB16-1010 | Opposing | The Humane Society of the United States | Colorado | 2015-2016 |
| HB16-1220 | Opposing | The Humane Society of the United States | Colorado | 2015-2016 |
| HB16-1308 | Monitoring | The Humane Society of the United States | Colorado | 2015-2016 |
| HB16-1341 | Supporting | The Humane Society of the United States | Colorado | 2015-2016 |
| HB15-1057 | Opposing | The Humane Society of the United States | Colorado | 2014-2015 |
| HB15-1304 | Monitoring | The Humane Society of the United States | Colorado | 2014-2015 |
| SB15-042 | Opposing | The Humane Society of the United States | Colorado | 2014-2015 |