- Best Friends Animal Society
No-kill sanctuary for abused and abandoned cats, dogs, and other animals.
Places spayed/neutered pets in adoptive homes. Includes a current listing of adoptable pets. Search by breed, sex, size, age, and more.
- In Defense of Animals
National animal advocacy organization dedicated to ending the institutionalized exploitation and abuse of animals by defending their rights, welfare and habitat.
- Animal Legal Defense Fund
Takes direct legal action to protect animals from exploitation and abuse. Works to establish legal rights for animals.
- RSPCA Australia (7)
- Denver Dumb Friends League
Nonprofit humane society and animal shelter.
- San Francisco SPCA
Guaranteeing that no adoptable dog or cat will be euthanized; look at adoptable animal profiles, find out more about the tax-deductible car and other donation programs.
- Animal Protection Institute
Advocacy organization working through litigation, education, and publications to protect all animals. Includes links to program areas, publications, and the Action Alert Team.
- Mercy for Animals Online
Offering information, store, and how to make a donation.
- Dogs' Home Battersea, The
Dedicated to caring for lost and abandoned dogs and cats.
- Association for Assessment and Accreditation of Laboratory Animal Care International (AAALAC International)
Promotes the humane treatment of animals in science through a voluntary accreditation program.
- American Cetacean Society (ACS)
Works to protect whales, dolphins, porpoises, and their habitats through education, conservation, and research.
- Society for the Prevention of Cruelty to Animals (5)
- Scottish SPCA
Seeks to prevent cruelty to animals and promote kindness and humanity in their treatment.
- Last Chance for Animals
Dedicated to reducing exploitation of animals across a variety of issues.
- Feral Cat Coalition
Information related to spay, neuter, release programs for feral cats. Also general info of interest to those dealing with cats.
- Helen Woodward Animal Center
Committed to the philosophy of people helping animals, animals helping people.
- Humane Society for Seattle/King County
Offers animal adoption services, public boarding, low-cost spay/neuter clinic, and more.
- Performing Animal Welfare Society (PAWS)
Place where abandoned or abused performing animals can live in peace and contentment.