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Organization Location Revenue Expenses Assets Program Fundr. cost Employees Type Follow
Worcester Natural History Society The ecotarium's mission is to inspire a passion for science and nature our goal as new england's leading… 04-2105868 · FY2024 Worcester, MA $10.5M $5.9M $27.3M 70% 10% 60 501(c)(3)
Rocky Mountain Bird Observatory Our mission is to conserve birds and their habitats through an integrated approach of science, education and… 84-1079882 · FY2024 Brighton, CO $10.1M $9.2M $7.7M 87% 2% 168 501(c)(3)
Inaturalist To connect people to nature & advance biodiversity science & conservation 92-1296468 · FY2024 San Rafael, CA $4.7M $3.1M $5.9M 72% 15% 9 501(c)(3)
Irvine Natural Science Center INC Environmental education CENTER 52-1231286 · FY2024 Owings Mills, MD $3.8M $3.4M $16.4M 87% 10% 77 501(c)(3)
Audubon Society of New Hampshire Our mission is to protect New Hampshire's natural environment for wildlife and people. 02-6005322 · FY2024 Concord, NH $3.8M $3.0M $24.2M 60% 13% 49 501(c)(3)
Squam Lakes Association Protects the Squam Lakes watershed through conservation, education outreach programs. Owns Moon Bowman… 02-0256498 · FY2024 Holderness, NH $2.9M $1.7M $12.8M 84% 1% 38 501(c)(3)
Lake Erie Junior Nature & Science Center The mission of the LAKE ERIE NATURE and SCIENCE CENTER is to educate and inspire all of US to understand… 34-0845030 · FY2024 Bay Village, OH $2.8M $3.2M $8.5M 90% 6% 32 501(c)(3)
Shaker Lakes Regional Nature Center DBA Nature Center at Shaker Lakes The mission of the NATURE CENTER at SHAKER LAKES is to conserve a natural area, connect people with NATURE… 34-6576569 · FY2023 Shaker Heights, OH $2.5M $2.2M $7.8M 81% 8% 52 501(c)(3)
Land Between the Lakes Association Provide environmental education and conservation opportunities 31-1086145 · FY2024 Golden Pond, KY $2.5M $2.3M $1.8M 87% 1% 64 501(c)(3)
Ecology Learning Center The mission of the ecology learning center is to deeply root students in Maine's ecological & cultural… 83-1966135 · FY2023 Unity, ME $2.4M $1.6M $1.8M 84% 0% 53 501(c)(3)
Sarett Nature Center To provide high quality natural science education for people of all ages. 38-3058912 · FY2024 Benton Harbor, MI $2.2M $910.8K $11.8M 77% 2% 21 501(c)(3)
Northwoods Stewardship Center Connecting people and place through science, education and action. 03-0346759 · FY2024 East Charleston, VT $2.1M $2.1M $3.9M 71% 10% 95 501(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)
Swan Valley Connections Maintain the SWAN valley's unique natural resources and ensure that a vibrant human community can sustain… 81-0512368 · FY2024 Condon, MT $1.4M $1.1M $1.9M 70% 8% 12 501(c)(3)
South Fork Natural History Society Provide a NATURAL HISTORY and anthropological museum, outdoor and indoor NATURAL HISTORY classrooms and… 11-2972582 · FY2024 Bridgehampton, NY $1.3M $1.5M $2.0M 78% 11% 12 501(c)(3)
Project 412 To connect and elevate the cultural and economic vibrancy of the lakes area 88-3176887 · FY2024 Detroit Lakes, MN $1.3M $1.6M $240.9K 87% 6% 3 501(c)(3)
Bayshore Center at Bivalve INC Advance the understanding of the human impact on new jersey's aquatic environment 22-3019683 · FY2024 Port Norris, NJ $986.7K $971.8K $5.0M 68% 9% 44 501(c)(3)
National Oceans and Applications Research Center 46-0876558 · FY2024 Kiln, MS $842.9K $809.2K $401.4K 92% 0% 3 501(c)(3)
Perkiomen Watershed Conservancy To inform and educate the public about its environmental surroundings. 23-6420112 · FY2024 Schwenksville, PA $588.8K $581.1K $561.5K 80% 2% 9 501(c)(3)
Crown Point Ecology Center To demonstrate the practical applications of ECOLOGY and its connection to spirituality, social justice, and… 27-2817313 · FY2023 Akron, OH $472.5K $541.8K $541.4K 92% 4% 18 501(c)(3)
Lake Katherine Nature Center and Botanic Gardens Environmental stewardship and gardens in a unique urban setting 91-1848185 · FY2024 Palos Heights, IL $423.6K $308.8K $573.5K 66% 13% 26 501(c)(3)
Herring Gut Coastal Science Center Educating students and communities about the connections between the ocean, inland waters, and economy of… 92-0902723 · FY2024 Port Clyde, ME $406.9K $501.5K $1.4M 69% 15% — 501(c)(3)
Lake Erie Islands Nature and Wildlife Center To promote education and stimulate curiosity (especially among children) in LAKE ERIE ISLANDS natural… 27-5017525 · FY2024 Put in Bay, OH $349.6K $313.1K $1.2M 95% 0% 8 501(c)(3)
Maine Natural History Observatory NATURAL HISTORY observation 20-0718450 · FY2024 Gouldsboro, ME $348.5K $273.7K $268.1K 88% 0% 4 501(c)(3)
Kwiaht Center for the Historial Ecology of the Salish Sea Science for stewardship of the san juan islands including studies of long term change in marine and… 30-0355067 · FY2024 Lopez Island, WA $286.6K $236.6K $107.6K 75% 0% 1 501(c)(3)
Cohasset Center for Student Coastal Research INC Enviromental Studies 04-3404377 · FY2024 Cohasset, MA $280.0K $254.7K $201.3K 100% 0% 1 501(c)(3)
Friends of Silver Lake Nature Center NATURE and enviornmental education 22-2469083 · FY2025 Bristol, PA $268.1K $244.5K $638.3K 68% 2% — 501(c)(3)
Benthic Ecology Meeting Promote research in BENTHIC ecosystems 45-3689387 · FY2024 Dauphin Isl, AL $216.9K $209.9K $61.6K 99% 0% — 501(c)(3)
Intl Assn for Landscape Ecology North America 73-1399224 · FY2024 Erie, PA $152.8K — $118.8K — — — 501(c)(3)
The Watershed Education Network Natural Resource & Water Education Services 81-0525373 · FY2024 Missoula, MT $149.5K — $204.7K — — 7 501(c)(3)
Lakes Area Outdoor Initiative 83-2837523 · FY2025 Perham, MN $134.2K — $163.3K — — — 501(c)(3)
The Reed Center for Ecosystem Reintegration 45-2729935 · FY2024 Middletown, MD $127.0K — $89.0K — — — 501(c)(3)
Atlas of the Lakes Area 86-1683743 · FY2025 Arnolds Park, IA $113.9K — $35.7K — — — 501(c)(3)
Marine and Coastal Ecology Research Center 46-1145979 · FY2022 Spring Hill, FL $98.5K — $0 — — — 501(c)(3)
The Natural Resource Education Center INC 86-0832876 · FY2024 Casa Grande, AZ $91.5K — $127.7K — — — 501(c)(3)
Lake Oswego Learning Center 84-2546820 · FY2023 Lake Oswego, OR $90.1K — $1.8K — — — 501(c)(3)
Ecosystem Management Research Institute 82-0520577 · FY2020 Seeley Lake, MT $75.6K — $0 — — — 501(c)(3)
Natural Resource Education Center at Moosehead TO provide resource based programming to visitors TO THE Moosehead Lake Region 01-0505918 · FY2024 Greenville, ME $73.9K — $415.2K — — — 501(c)(3)
New Hampshire Wildlife Federation 02-0332369 · FY2024 Concord, NH $68.1K — $85.9K — — — 501(c)(3)
2,046,138
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212,946
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214,365
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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