Organizations
Largest first
By revenue on the last return. Organizations that file Form 990-N report no figures and come last.
| Organization | Return | Revenue |
|---|---|---|
| National Fish and Wildlife FoundationWashington | Form 990 | $584,225,222FY2025 |
| Humane World for Animals IncWashington | Form 990 | $216,548,337FY2025 |
| Defenders of WildlifeWashington | Form 990 | $48,550,195FY2025 |
| African Wildlife FoundationWashington | Form 990 | $37,344,195FY2025 |
| American Humane AssociationWashington | Form 990 | $36,567,566FY2025 |
| Humane World for Animals InternationalWashington | Form 990 | $35,136,528FY2024 |
| Jane Goodall Institute for Wildlife Research Education & ConservationWashington | Form 990 | $30,550,365FY2024 |
| Washington Humane Society the Society for the Prevention ofWashington | Form 990 | $22,574,962FY2025 |
| Frankfurt Zoological Society Us IncWashington | Form 990 | $13,478,170FY2025 |
| Theodore Roosevelt Conservation Partnership IncWashington | Form 990 | $11,546,406FY2025 |
| Resolve IncWashington | Form 990 | $9,120,465FY2025 |
| Conservation X Labs IncWashington | Form 990 | $9,093,014FY2024 |
| Animal Welfare InstituteWashington | Form 990 | $6,170,763FY2025 |
| The White Coat Waste Project IncWashington | Form 990 | $5,941,048FY2024 |
| The Wilderness Project FoundationWashington | Form 990 | $5,747,870FY2025 |
| Green AmericaWashington | Form 990 | $5,230,441FY2025 |
| Animal & Vegan Advocacy International IncWashington | Form 990 | $2,550,082FY2024 |
| Wildlife GuardiansWashington | Form 990 | $2,458,153FY2024 |
| Whale Sanctuary ProjectWashington | Form 990 | $2,269,935FY2024 |
| The Nonhuman Rights Project IncWashington | Form 990 | $2,138,053FY2025 |
| Human Animal Bond Research FoundationWashington | Form 990 | $1,595,639FY2024 |
| Animal Rescue Corps IncWashington | Form 990 | $1,320,608FY2024 |
| City Dogs RescueWashington | Form 990 | $1,199,680FY2024 |
| National Wildlife Refuge AssociationWashington | Form 990 | $1,193,106FY2025 |
| The Humane Society Wildlife Land TRWashington | Form 990 | $1,094,491FY2025 |
| Conservation NationWashington | Form 990 | $989,290FY2025 |
| Food Animal Concerns TrustWashington | Form 990 | $901,531FY2025 |
| Endangered Species CoalitionWashington | Form 990 | $891,294FY2024 |
| Americas Wildlife Association for Resource Education AwareWashington | Form 990 | $682,378FY2024 |
| Bonobo Conservation InitiativeWashington | Form 990 | $414,584FY2024 |
| ElephantvoicesWashington | Form 990 | $380,732FY2025 |
| Life Long Paws FoundationWashington | Form 990 | $223,804FY2025 |
| National Turkey Federation FoundationWashington | Form 990 | $214,014FY2026 |
| Lailas Legacy Animal Rescue IncWashington | Form 990-EZ | $190,640FY2024 |
| DC Voters for Animals Education FundWashington | Form 990-EZ | $168,785FY2025 |
| Friends of CSWCTWashington | Form 990-EZ | $152,977FY2025 |
| Center for Conservation PeacebuildingWashington | Form 990-EZ | $119,533FY2024 |
| Tail Wags & Book BagsWashington | Form 990-EZ | $106,439FY2024 |
| East Coast Corgi RescueWashington | Form 990-N | No figure |
| American Veterinary Medical Law AssociationWashington | Form 990-N | No figure |
| Potomac Highlands Beekeepers AssociationWashington | Form 990-N | No figure |
| Newark Street Park K-9 FriendsWashington | Form 990-N | No figure |
| Friends of DC AnimalsWashington | Form 990-N | No figure |
| Khloes Second ChanceWashington | Form 990-N | No figure |
| American Association for Zoological NomenclatureWashington | Form 990-N | No figure |
| Feline Urban Rescue IncWashington | Form 990-N | No figure |
| Alliance for Stray Animals and PeopleWashington | Form 990-N | No figure |
| Canine Freestyle Federation IncWashington | Form 990-N | No figure |
| American Institute of Fishery Research BiologistsWashington | Form 990-N | No figure |
| Beowulf HouseWashington | Form 990-N | No figure |
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