National
New England Anti-Vivisection Society
New England Anti-Vivisection Society (Boston, Massachusetts 02108) is a national animal advocacy organization founded in 1895.
Association of Veterinarians for Animal Rights
The Association of Veterinarians for Animal Rights actively works toward the acquisition of rights for all nonhuman animals by educating the public and the veterinary profession about a variety of issues concerning nonhuman animal use.
Physicians Committee For Responsible Medicine
Physicians Committee For Responsible Medicine is a non-profit organization of doctors and laypersons working together for compassionate and effective medical practice, research, and health promotion.
The National Anti-Vivisection Society
The National Anti-Vivisection Society (Chicago, Illinois 60604) is dedicated to abolishing the exploitation of animals used in research, education, and product testing.
Last Chance for Animals
Last Chance for Animals recognizes that animals have the ability to experience pain, and as such they deserve certain basic rights protecting them from pain caused by humans.

