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Organization Location Revenue Expenses Assets Program Fundr. cost Employees Type Follow
Trout Unlimited INC To conserve, protect, and restore north america's coldwater fisheries and their watersheds. 38-1612715 · FY2024 Arlington, VA $109.5M $104.6M $60.7M 88% 4% 508 501(c)(3)
American Forests 53-0196544 · FY2023 Washington, DC $26.3M $29.5M $17.0M 84% 7% 199 501(c)(3)
Restore America's Estuaries RESTORE AMERICA'S ESTUARIES is dedicated to the protection and restoration of bays and ESTUARIES as essential… 54-1965304 · FY2024 Washington, DC $8.1M $7.9M $3.1M 91% 1% 9 501(c)(3)
Conservation Foundation Preserve and restore natural areas, protect rivers and watersheds, and promote stewardship of our environment. 23-7221206 · FY2024 Naperville, IL $7.5M $4.0M $21.2M 84% 11% 43 501(c)(3)
Mystic River Watershed Association INC The MYSTIC RIVER WATERSHED is a network of rivers, streams and ponds that all flow into the MYSTIC RIVER and… 23-7221094 · FY2024 Arlington, MA $6.5M $6.6M $11.1M 90% 2% 30 501(c)(3)
Center for Watershed Protection To protect, restore and enhance our streams, rivers, lakes, wetlands and bays. 54-1644387 · FY2024 Fulton, MD $3.8M $3.7M $2.7M 90% 1% 21 501(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)
Association for the Preservation of the Eno River Valley INC To conserve and protect the natural, historical, and cultural resources of the ENO RIVER basin. 56-1134204 · FY2024 Durham, NC $2.6M $2.5M $11.8M 80% 7% 14 501(c)(3)
Living Lands & Waters To aid in the protection, preservation and restoration of the natural environment of the nations major rivers… 36-4244353 · FY2024 East Moline, IL $2.5M $2.3M $5.4M 82% 5% 32 501(c)(3)
Friends of the Cheat INC To restore, preserve and promote the outstanding natural qualities of the CHEAT river watershed. 55-0739158 · FY2024 Kingwood, WV $2.5M $2.2M $2.9M 85% 3% 9 501(c)(3)
American River Conservancy To conduct land conservation, stewardship and education in the upper AMERICAN RIVER and upper cosumnes RIVER… 68-0195752 · FY2024 Coloma, CA $2.3M $2.0M $51.3M 66% 5% 15 501(c)(3)
Charles River Watershed Association INC The organization's mission is to protect, restore, and enhance the CHARLES RIVER and its WATERSHED through… 04-6136989 · FY2023 Boston, MA $2.3M $2.6M $10.0M 78% 8% 29 501(c)(3)
Clean International INC Help protect and provide clean water today and for generations to come. 47-5616149 · FY2024 Ventura, CA $2.3M $2.0M $1.6M 94% 0% 1 501(c)(3)
Prairie Rivers Network At PRAIRIE RIVERS NETWORK, we protect water, heal land, and inspire change. Using the creative power of… 37-6085905 · FY2024 Champaign, IL $1.6M $1.6M $7.0M 78% 15% 18 501(c)(3)
Nashua River Watershed Association INC To restore and protect water quality and quantity for people, fish and wildlife. To conserve open spaces for… 23-7055674 · FY2023 Groton, MA $1.3M $1.3M $3.6M 68% 17% 17 501(c)(3)
North and South Rivers Watershed Association INC To preserve, restore and maintain and conserve the NORTH and SOUTH RIVERS WATERSHED. 23-7181992 · FY2024 Norwell, MA $1.3M $885.6K $4.3M 75% 8% 19 501(c)(3)
Three Rivers Land Trust To build reciprocal relationships to land through conservation, recreation, and education. 01-0539771 · FY2024 Alfred, ME $1.2M $159.9K $4.7M 71% 14% 2 501(c)(3)
Sound Rivers INC To protect and enhance the tar-pamlico and neuse river watersheds. 58-1475258 · FY2024 Washington, NC $1.1M $1.4M $1.9M 85% 3% 11 501(c)(3)
Cahaba River Society INC Our mission to restore and protect the Cahaba River watershed and its rich diversity of life. The diverse… 63-0987276 · FY2023 Birmingham, AL $823.9K $787.5K $1.1M 71% 14% 16 501(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)
Alabama Rivers Alliance INC Promote the conservation of Alabama rivers and watersheds. 63-1186023 · FY2024 Birmingham, AL $624.2K $683.6K $375.9K 83% 8% 5 501(c)(3)
Clean River Partners INC Inspire people and organizations to value, protect and improve the cannon RIVER watershed's land and water. 41-1674744 · FY2024 Northfield, MN $622.5K $595.2K $675.5K 77% 7% 8 501(c)(3)
Massachusetts Rivers Alliance INC To restore and protect rivers and streams. 20-8387704 · FY2024 Somerville, MA $584.6K $612.2K $585.1K 59% 17% 5 501(c)(3)
Idaho Rivers United INC Protect and restore the RIVERS of IDAHO. Our focus is the ecological integrity of our RIVERS, but the lens we… 82-0439916 · FY2024 Boise, ID $552.1K $619.8K $104.5K 88% 9% 6 501(c)(3)
Oars INC Protect, preserve and enhance the natural and recreational features of the Assabet, Sudbury and Concord… 04-2963426 · FY2024 Concord, MA $547.4K $470.8K $1.4M 59% 6% 4 501(c)(3)
Partners for Clean Streams INC PARTNERS for CLEAN STREAMS strives for abundant open space and a high quality natural environment; adequate… 20-3463367 · FY2024 Perrysburg, OH $539.8K $527.7K $175.2K 92% 4% 3 501(c)(3)
Great Rivers Land Preservation Association INC Protection of property for conservation purposes through easements and acquisition 37-1309728 · FY2024 Alton, IL $538.6K $459.3K $15.1M 52% 9% 5 501(c)(3)
Wild Oceans INC WILD OCEANS brings together sport and commercial fisherman, industry representatives… 58-1186029 · FY2024 Tampa, FL $496.2K $392.3K $2.2M 85% 4% 3 501(c)(3)
Save the River INC To protect and preserve the ecological integrity of st. Lawrence RIVER through advocacy, education and… 16-1125061 · FY2024 Clayton, NY $483.6K $483.0K $1.8M 71% 12% 8 501(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)
Clean River Project INC To promote environmental awareness and to perform cleaning, maintaining, and preservation of the Merrimack… 26-1904414 · FY2024 Methuen, MA $414.8K $418.9K $316.0K 95% 1% 5 501(c)(3)
Winyah Rivers Foundation INC To protect, preserve, monitor and revitalize the health of the lands and waters of the greater Winyah Bay… 57-1118288 · FY2024 Conway, SC $315.0K $352.6K $2.9M 75% 4% 6 501(c)(3)
Living Rivers LIVING RIVERS promotes river restoration through mobilization by articulating conservation and alternative… 87-0668658 · FY2024 Moab, UT $247.5K $225.4K $207.9K 78% 2% 4 501(c)(3)
Save the American River Association INC The specific purpose of this corporation is to protect and enhance the American River Parkway between Nimbus… 94-2987563 · FY2024 Orangevale, CA $177.6K $171.7K $659.5K 81% 0% — 501(c)(3)
Protect Our Rivers 86-2101337 · FY2024 Lakewood, CO $159.3K — $86.2K — — — 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)
River Revitalizational Foundation INC Protect, maintain and restore the urban RIVER basins within milwaukee county. 39-1887400 · FY2024 Milwaukee, WI $126.9K $235.2K $0 91% 2% 4 501(c)(3)
Iowa Rivers Revival Help iowans restore, protect and enjoy our RIVERS. 30-0418831 · FY2022 Des Moines, IA $75.9K $133.0K $121.5K 42% 13% 2 501(c)(3)
Clean Streams Rivers and Lakes 86-1647486 · FY2025 Fairfax, VA $63.1K — $7.6K — — — 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