The Humane Society of the United States is the nation's most effective animal protection organization. Since 1954, we've been fighting for the protection of all animals through advocacy, education and hands-on programs.

The HSUS is a mainstream voice for animals, with active programs in companion animals, wildlife and habitat protection, animals in research and farm animals. Together with our affiliates, we work across the nation and around the world to protect all animals through legislation, litigation, investigations, education, science, advocacy and field work. We also rescue and care for thousands of animals each year—but our primary mission is to prevent cruelty before it occurs.