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Organization Location Revenue Expenses Assets Program Fundr. cost Employees Type Follow
Western Rivers Conservancy WESTERN RIVERS conservancy's mission is to protect outstanding river ecosystems in the WESTERN united states… 93-1326405 · FY2023 Portland, OR $25.2M $15.6M $54.4M 87% 6% 24 501(c)(3)
Tuolumne River Preservation Trust Promoting stewardship of the Tuolumne River through: education, community outreach and adventures… 94-2834151 · FY2024 Sonora, CA $6.1M $6.2M $2.0M 77% 10% 33 501(c)(3)
River Network RIVER NETWORK empowers and unites people and communities to protect and restore rivers and other waters that… 93-0969979 · FY2023 Boulder, CO $3.7M $4.2M $3.2M 75% 8% 21 501(c)(3)
Columbia Riverkeeper Columbia riverkeepers mission is to protect and restore the water quality of the Columbia river and all life… 91-1583492 · FY2024 Hood River, OR $3.5M $4.9M $7.8M 87% 6% 27 501(c)(3)
Water Watch of Oregon WaterWatch is a river conservation organization dedicated to protecting and restoring streamflows in Oregons… 93-0888158 · FY2024 Portland, OR $3.4M $3.6M $1.1M 95% 2% 10 501(c)(3)
Chattahoochee Riverkeeper INC Chattahoochee Riverkeeper, Inc. the Riverkeeper is a nonprofit organization whose mission is to educate… 58-2095413 · FY2024 Smyrna, GA $3.2M $2.6M $5.9M 84% 8% 18 501(c)(3)
Clackamas River Basin Council INC CLACKAMAS RIVER BASIN COUNCIL INC is a local voluntary watershed COUNCIL composed of 21 diverse member groups… 91-1838169 · FY2024 Gladstone, OR $2.9M $3.0M $831.7K 89% 0% 8 501(c)(3)
Hood River Watershed Group To sustain and improve the Hood River Watershed through education, cooperation, and stewardship, and work… 88-3028293 · FY2024 Hood River, OR $2.7M $2.6M $696.9K 95% 0% 2 501(c)(3)
Anacostia Watershed Society INC 52-1666511 · FY2024 Bladensburg, MD $2.6M $2.8M $2.2M 71% 7% 23 501(c)(3)
Northwest Watershed Institute WATERSHED protection in the pacific NORTHWEST 93-1325820 · FY2024 Port Townsend, WA $1.9M $1.1M $3.4M 95% 1% 13 501(c)(3)
Riversedge West Advancing the restoration of riparian lands through collaboration, education, and technical assistance. 27-0007315 · FY2024 Grand Jct, CO $1.7M $1.5M $1.2M 86% 5% 10 501(c)(3)
Trailkeepers of Oregon TRAILKEEPERS of OREGON is a non-profit organization whose mission is to protect and enhance the OREGON hiking… 27-1209205 · FY2024 Portland, OR $1.5M $1.5M $306.0K 77% 4% 9 501(c)(3)
Russian Riverkeeper The Russian Riverkeeper protectsand restores our watershed environmentfor the benefit of current and future… 68-0321117 · FY2024 Healdsburg, CA $1.4M $1.4M $1.2M 72% 13% 20 501(c)(3)
Milwaukee Riverkeeper INC Our mission is to protect water quality and wildlife habitat in the river corridors and to advocate for sound… 39-1846305 · FY2023 Milwaukee, WI $1.2M $936.8K $621.7K 81% 9% 10 501(c)(3)
California River Watch The organization's primary purpose is to engage in activities that protect, enhance and help restore the… 68-0392889 · FY2025 Sebastopol, CA $932.5K $673.3K $929.6K 96% 0% 501(c)(3)
Anacostia Riverkeeper INC To protect and restore the Anacostia River for all those who live work and play in the watershed. 61-1574670 · FY2024 Washington, DC $897.0K $768.4K $999.1K 71% 15% 3 501(c)(3)
Hackensack Riverkeeper INC The primary mission of HACKENSACK RIVERKEEPER, INC. Is to protect, preserve and restore the HACKENSACK river… 22-3530496 · FY2024 Hackensack, NJ $855.4K $871.4K $1.5M 85% 9% 36 501(c)(3)
Black Warrior Riverkeeper INC To protect and restore the BLACK WARRIOR river and its tributaries. 72-1537394 · FY2024 Birmingham, AL $788.8K $510.4K $1.4M 90% 3% 5 501(c)(3)
Rivanna Conservation Alliance Working with the community to conserve the RIVANNA river and its tributaries through monitoring, restoration… 52-0194008 · FY2024 Charlottesville, VA $699.1K $642.9K $456.2K 85% 6% 8 501(c)(3)
Yadkin Riverkeeper INC To preserve and protect the YADKIN pee dee river basin through education, advocacy, and action. 26-1874687 · FY2024 Winston Salem, NC $510.4K $457.2K $172.8K 76% 14% 5 501(c)(3)
Deschutes River Alliance Advocacy and stewardship for the lower 100 miles of the DESCHUTES RIVER in oregon 46-3538750 · FY2024 Portland, OR $506.0K $579.8K $380.5K 65% 30% 4 501(c)(3)
The River Alliance of Wisconsin INC To empower people to protect and restore water. 39-1792143 · FY2024 Madison, WI $477.5K $773.3K $1.2M 69% 14% 8 501(c)(3)
Takshanuk Watershed Council The mission of the TAKSHANUK WATERSHED COUNCIL is to provide stewardship of jilkaat aani ka heeni (the… 33-1069246 · FY2024 Haines, AK $468.7K $412.6K $1.0M 75% 0% 19 501(c)(3)
Ogeechee-Canoochee Riverkeeper To provide public education and water quality monitoring for the OGEECHEE and CANOOCHEE rivers. 58-2636669 · FY2024 Savannah, GA $466.7K $482.7K $1.2M 79% 3% 9 501(c)(3)
Tualatin River Watershed Council To foster better stewardship and understanding of the Tualatin River Watershed resources; address natural… 93-1286280 · FY2023 Hillsboro, OR $454.9K $418.0K $76.6K 97% 0% 3 501(c)(3)
Snake River Waterkeeper INC Snake River Waterkeeper exists for the purpose of applying science and law to protect, restore, and sustain… 47-1608920 · FY2024 Boise, ID $434.6K $437.7K $608.5K 40% 3% 1 501(c)(3)
Spokane Riverkeeper To protect and restore the health and ecological integrity of the SPOKANE river watershed and to defend the… 84-5175870 · FY2024 Spokane, WA $419.0K $384.3K $442.4K 69% 10% 3 501(c)(3)
Cahaba Riverkeeper To defend the ecological integrity of the CAHABA river, its tributaries and watershed 26-2623785 · FY2024 Birmingham, AL $379.0K $238.4K $840.2K 100% 0% 2 501(c)(3)
Purgatoire Watershed Partnership INC Our mission is to restore, protect, and enhance the PURGATOIRE river WATERSHED through stakeholder… 46-1757863 · FY2024 Trinidad, CO $277.4K $259.9K $53.7K 89% 0% 501(c)(3)
Friends of the Tualatin River National Wildlife Refuge To support the Tualatin River National Wildlife Refuge the organization is dedicated to the protection and… 93-1197298 · FY2024 Sherwood, OR $250.7K $129.9K $362.5K 64% 12% 2 501(c)(3)
River Keepers To advocate for the sustainable use of the Red River of the North 45-0417429 · FY2024 Fargo, ND $249.3K $239.4K $432.8K 76% 5% 2 501(c)(3)
Tennessee Riverkeeper INC The mission of TENNESSEE RIVERKEEPER is to protect and restore clean water, biological life, recreational… 30-0544517 · FY2024 Decatur, AL $174.2K $227.6K $152.1K 100% 0% 3 501(c)(3)
Altamaha Riverkeeper INC To Protect and restore the habitat, water quality and flow of the Altamaha River and its watershed… 58-2448037 · FY2024 Macon, GA $148.8K $201.5K $37.1K 81% 10% 2 501(c)(3)
Puyallup River Watershed Council To restore, protect and enhance the environmental, economic and cultural health of our WATERSHED, from mount… 91-2047734 · FY2024 Tacoma, WA $147.8K $57.9K 501(c)(3)
Carmel River Watershed Conservancy The conservancy's mission is the protection of natural resources that form the CARMEL RIVER WATERSHED… 77-0548869 · FY2024 Carmel, CA $130.7K $237.1K $804.5K 86% 0% 501(c)(3)
Wabash River Defenders INC The WABASH RIVER DEFENDERS are volunteers who preserve, protect, and defend the WABASH RIVER by promoting… 47-1585032 · FY2024 North Manchester, IN $112.3K $121.8K $61.5K 97% 0% 501(c)(3)
Congaree Riverkeeper INC 26-4193711 · FY2024 Columbia, SC $96.1K $170.9K 501(c)(3)
Cowpasture River Preservation Association 54-1300846 · FY2024 Millboro, VA $72.5K $205.1K 501(c)(3)
Oregon Stewardship 93-1172443 · FY2025 Medford, OR $56.5K $110.8K 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
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