Best Friends Animal Society is a leading national animal welfare organization dedicated to ending the killing of dogs and cats in America's shelters. To help Save Them All, Best Friends works with shelters, rescue groups and our members nationwide.

The HSUS is a mainstream voice for animals, with active programs in companion animals, wildlife and habitat protection, animals in research and farm animals. We protect all animals through legislation, litigation, investigation, education, science, advocacy and field work.

The ASPCA's mission is to provide effective means for the prevention of cruelty to animals throughout the United States. The ASPCA provides local and national leadership in animal-assisted therapy, animal behavior, animal poison control, anti-cruelty, humane education, legislative services, and shelter outreach.

Last Chance for Animals seeks to eliminate animal exploitation through direct action, education, investigations, legislation, and media attention. LCA opposes the use of animals in food and clothing production, scientific experimentation, and entertainment.

People for the Ethical Treatment of Animals (PETA), nongovernmental organization (NGO) committed to ending abusive treatment of animals in business and society and promoting consideration of animal interests in everyday decision making and general policies and practices.

Friends of Animals (FoA), founded in 1957, works to cultivate a respectful view of nonhuman animals, free-living and domestic. Our goal is to free animals from cruelty and institutionalized exploitation around the world.

Alley Cat Allies educates, trains, and mobilizes grassroots advocates to hasten strategic, lifesaving change for cats in their communities, using the power of the legal and political system to end ill-conceived laws and ordinances.

PetSmart Charities, Inc. (PetSmart Charities) is committed to finding lifelong, loving homes for all pets by supporting programs and thought leadership that bring people and pets together.

The mission of American Humane, as a network of individuals and organizations, is to prevent cruelty, abuse, neglect, and exploitation of children and animals and to assure that their interests and well-being are fully, effectively, and humanely guaranteed by an aware and caring society.

What We Do. Farm Sanctuary fights the disastrous effects of animal agriculture on animals, the environment, social justice, and public health through rescue, education, and advocacy.

We move the world to protect the one billion animals that live in communities. We find the most effective ways to protect animals in communities – and then we act. So we help governments to manage dog populations humanely and to vaccinate against rabies, instead of culling dogs.

Since 1984, The Performing Animal Welfare Society (PAWS) has been at the forefront of efforts to rescue and provide appropriate, humane sanctuary for animals who have been the victims of the exotic and performing animal trades.

Our Mission: The Dian Fossey Gorilla Fund International is dedicated to the conservation, protection and study of gorillas and their habitats in Africa. Our successful, integrated approach includes close collaboration with local governments and communities as well as partners from around the world.

Humane Society International works around the globe to promote the human-animal bond, rescue and protect dogs and cats, improve farm animal welfare, protect wildlife, promote animal-free testing and research, respond to natural disasters and confront cruelty to animals in all of its forms.

The RSPCA's mission is to prevent cruelty to animals by actively promoting their care and protection. To achieve this, the RSPCA works to enforce animal cruelty laws and advocate for new legislation where required.

The Humane League (THL) engages in a variety of programs designed to persuade individuals and organizations to adopt behaviors that reduce farmed animal suffering. THL's largest programs, based on their budget, are their corporate campaigns and grassroots organizing.

Dogs Without Borders is foster-based rescue in Los Angeles, pulling small breed dogs from LA area shelters, as well as working with international rescue partners to re-home dogs in need.

Mission: To prevent cruelty to farmed animals and promote compassionate food choices and policies. About the Organization: A national animal advocacy organization with more than seventy thousand members, Mercy for Animals seeks to create a society in which all animals are treated with respect and compassion.

The Sato Project is dedicated to rescuing abused and abandoned dogs in Puerto Rico.

Mission. Founded in 1961, the African Wildlife Foundation (AWF), together with the people of Africa, works to ensure the wildlife and wild lands of Africa will endure forever. AWF is the leading international conservation organization focused solely on Africa.

Hope for Paws is a 501 C-3 non-profit animal rescue organization (E.I.N: 26-2869386). We rescue dogs, cats and other types of animals suffering on the streets or neglected in the wild. Through rescue and education, Hope For Paws works to raise awareness for abandoned animals.

The Animal Legal Defense Fund files high-impact lawsuits to protect animals from harm, provides free legal assistance and training to prosecutors in their fight against animal cruelty, supports animal protection legislation, and provides resources and opportunities to law students and professionals to advance the field

Tony La Russa's Animal Rescue Foundation (ARF) is a nonprofit organization founded by Elaine and Tony La Russa, based in Walnut Creek, California. ARF rescues dogs and cats from public shelters where they would otherwise be euthanized and adopts them into new homes.

Defenders of Wildlife is a 501 non-profit conservation organization based in the United States. It works to protect all native animals and plants throughout North America in their natural communities.

Network for Animals is a U.S.-based organization that works to eliminate animal cruelty. The organization conducts a range of activities worldwide, including wildlife protection, petitions, and public campaigns that target the global dog meat trade.

Mission. Founded in 2002, Wildlife Conservation Network (WCN) is dedicated to protecting endangered species and preserving their natural habitats. We support innovative strategies for people and wildlife to co-exist and thrive.