Animal rights organizations
- AnimaNaturalis
- Animal Aid (UK)
- Animal Defense League
- Animal Equality
- Animal Legal Defense Fund
- Animal Liberation Brigade (ALB)
- Animal Liberation Leagues
- Animal Liberation Press Office
- Anonymous for Animal Rights
- Coalition to Abolish the Fur Trade (CAFT)
- Compassion Over Killing (COK)
- Comunidad Inti Wara Yassi
- Equanimal
- Friends of Animals (FoA)
- HAYTAP
- In Defense of Animals (IDA)
- International Primate Protection League (IPPL)
- Italian Horse Protection Association (IHP)
- Justice Department (animal rights)
- Last Chance for Animals (LCA)
- Libera!
- Massachusetts Animal Rights Coalition (MARC)
- Mercy For Animals (MFA)
- People for the Ethical Treatment of Animals (PETA)
- Sea Shepherd Conservation Society (SSCS)
- Southern Animal Rights Coalition (SARC)
- Western Animal Rights Network (WARN)
- World Society for the Protection of Animals (WSPA)
- Uncaged Campaigns
Organizations focused on animal testing
- Americans For Medical Advancement
- British Union for the Abolition of Vivisection (BUAV)
- Center for Alternatives to Animal Testing (CAAT)
- Close Highgate Farm
- Dr Hadwen Trust
- Great Ape Project
- National Anti-Vivisection Society (NAVS)
- New England Anti-Vivisection Society (NEAVS)
- Physicians Committee for Responsible Medicine (PCRM)
- Primate Freedom Project
- Rocky Mountain Animal Defense
- SPEAK
- Stop Huntingdon Animal Cruelty (SHAC)
- Stop Sequani Animal Testing (SSAT)
- Stop Wickham Animal Testing (SWAT)
Groups focused on bloodsports
Vegan/vegetarian-oriented groups
Groups focused on farm animals
Organizations
Movements focused on hunting
- Hunt Retribution Squad (HRS)
- Hunt Saboteurs Association (HSA)
