There are a variety of national organizations that focus on animal welfare. We’re happy to provide these links for informational purposes.
American Animal Hospital Association
American Society for the Prevention of Cruelty to Animals
American Veterinary Association
Association of Pet Dog Trainers
Association for Pet Loss and Bereavement
Humane Society of the United States
Humane Society of the US Feral Cat Program
Humane Society of US Legislative Fund
International Fund for Animal Welfare
National Council on Pet Population Study & Policy
Stopping Pet Overpopulation Together