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Organization Location Revenue Expenses Assets Program Fundr. cost Employees Type Follow
Rewild Re:wild protects and restores the wild to build a thriving earth where all life flourishes. 26-2887967 · FY2024 Austin, TX $75.2M $80.9M $74.2M 92% 3% 79 501(c)(3)
Defenders of Wildlife Habitat and species protection. 53-0183181 · FY2024 Washington, DC $48.6M $38.3M $65.5M 71% 12% 166 501(c)(3)
Chikaming Open Lands Preservation of OPEN space and natural areas. 38-3515636 · FY2024 Sawyer, MI $2.3M $915.7K $10.9M 60% 10% 5 501(c)(3)
Explore Ecology EXPLORE ECOLOGY empowers our community to proect and preserve the planet with innovative environmental… 20-4944165 · FY2024 Santa Barbara, CA $2.0M $1.7M $892.6K 75% 7% 52 501(c)(3)
If Not US Then Who Global awareness highlighting the role local peoples play in protecting forests. 81-4186787 · FY2024 Tarzana, CA $1.3M $1.4M $399.2K 93% 0% 501(c)(3)
Center for Field Sciences Organizing and supporting domestic and international field schools 85-4119862 · FY2024 Los Angeles, CA $918.9K $767.0K $158.7K 100% 0% 501(c)(3)
Eco-Servants Natural resource preservation and restoration 20-1272940 · FY2023 Ruidoso, NM $837.6K $879.7K $151.2K 97% 0% 39 501(c)(3)
Field Farm and Forest 90-1000716 · FY2025 East Burke, VT $194.9K $81.0K 501(c)(3)
The Biodiversity Group We protect Life Overlooked through ground-breaking expeditions developing novel technologies and supporting a… 20-3091062 · FY2023 Tucson, AZ $189.9K $151.8K 501(c)(3)
Marine Conservation Without Borders 81-3122642 · FY2023 Florence, SC $186.0K $0 501(c)(3)
Forest Conservancy 84-1583104 · FY2025 Carbondale, CO $185.8K $386.3K 501(c)(3)
Agroforestry Northwest 92-2330757 · FY2025 Bothell, WA $185.1K $161.0K 501(c)(3)
Wildlife Revealed 27-4318263 · FY2024 Paige, TX $180.9K $79.5K 501(c)(3)
Institute for Social Ecology 03-0280149 · FY2024 Plainfield, VT $162.1K $198.2K 501(c)(3)
Institute for Biodiversity and the Environment 92-1286488 · FY2025 Wheatland, CA $160.1K $32 501(c)(3)
Intl Assn for Landscape Ecology North America 73-1399224 · FY2024 Erie, PA $152.8K $118.8K 501(c)(3)
Ecoarts Connections 20-2499021 · FY2024 Lafayette, CO $152.1K $92.1K 501(c)(3)
Remote Ecologist INC 85-3508580 · FY2024 Darien, CT $149.5K $42.2K 501(c)(3)
Urban Symbiosis 85-3676804 · FY2024 Aurora, CO $147.1K $81.3K 501(c)(3)
Without Borders International 46-1235721 · FY2025 Cokato, MN $128.1K $41.1K 501(c)(3)
The Reed Center for Ecosystem Reintegration 45-2729935 · FY2024 Middletown, MD $127.0K $89.0K 501(c)(3)
Center for Amazon Community Ecology 74-3156891 · FY2024 Lemoyne, PA $123.6K $141.5K 501(c)(3)
Homeopaths Without Borders 84-1343774 · FY2025 Stratham, NH $122.9K $98.7K 501(c)(3)
The Association of Biologists 90-0934913 · FY2024 Lubbock, TX $117.6K $120.7K 501(c)(3)
Liminal Terrestrial 87-4804157 · FY2024 Seattle, WA $108.4K $10.7K 501(c)(3)
Conservation Confluence 99-4604483 · FY2024 The Plains, VA $102.9K $35.7K 501(c)(3)
Global Science & Envirotech 46-3784641 · FY2022 Cranston, RI $102.1K $0 501(c)(3)
Weatherizers Without Borders 47-1937193 · FY2025 Christiansbrg, VA $100.0K $147.8K 501(c)(3)
Ecotopia 30-0654896 · FY2024 Bisbee, AZ $98.6K $52.6K 501(c)(3)
Whiskers Without Borders 84-3738045 · FY2025 San Diego, CA $94.9K $27.4K 501(c)(3)
Partnerships for Nature 84-4595964 · FY2024 Bainbridge Island, WA $79.5K $53.2K 501(c)(3)
Ecosystem Management Research Institute 82-0520577 · FY2020 Seeley Lake, MT $75.6K $0 501(c)(3)
Biotech Without Borders INC 82-1893774 · FY2023 Long Is City, NY $68.2K $0 501(c)(3)
Biologists Without Borders 47-3017918 · FY2025 San Rafael, CA $64.9K $27.6K 501(c)(3)
Arts Without Borders 47-3266641 · FY2024 Solon, OH $59.3K $165 501(c)(3)
Center for Political Ecology The development of activity to educate the general public of ecological science and environmental conditions… 77-0254129 · FY2023 Santa Cruz, CA $57.9K $273.8K 501(c)(3)
Conservation Beyond Borders Foundation 74-3255958 · FY2024 Minnetonka, MN $56.9K $140.7K 501(c)(3)
International Biogeography Society INC To promote education public awareness funding and use of biogeographical science. Foster communication and… 76-0702796 · FY2024 Topeka, KS $52.0K $282.7K 501(c)(3)
Eco Theo Collective 83-4286562 · FY2024 Austin, TX $23.0K $39.4K 501(c)(3)
2,046,138
nonprofits
212,946
funders
12,515,252
grants
22,549,931
directors
214,365
service providers
549,896,012
financial lines
Public data from IRS Form 990 e-file & Business Master File. A 990 shows reported financial activity, not measured program outcomes. Assets are from the IRS BMF and may lag the latest filing; fundraising cost is fundraising expenses as a share of total expenses. · philanthropy.org