Colorado Federation of Animal Welfare Agencies
- Statewide network of animal welfare agencies working together for the greater good of animals. Includes issues supported, articles, emergency rescue training courses, and links to member agencies.
- http://www.cfawa.org/

Rocky Mountain Wildlife Conservation Center
- A sanctuary for abused, abandoned, and confiscated wildlife.
- http://www.wildlife-sanctuary.org

University of Colorado Animal Rights Student Group
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- http://www.colorado.edu/StudentGroups/animalrights/

Rocky Mountain Animal Defense
- Works to help eliminate the human-imposed suffering of animals in the Rocky Mountain region. RMAD furthers its objective through public education, investigation and research, the legislative process, direct action, and appeals to reason and compassion.
- http://www.rmad.org/