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Organization	Location	Revenue	Expenses	Assets	Program	Fundr. cost	Employees	Type
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)
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)
American Rivers INC AMERICAN RIVERS is championing a national effort to protect and restore all RIVERS, from remote mountain… 23-7305963 · FY2024	Washington, DC	$53.4M	$41.4M	$40.1M	77%	13%	131	501(c)(3)
The Freshwater Trust To preserve and restore FRESHWATER ecosystems. 93-0843521 · FY2024	Portland, OR	$11.4M	$10.8M	$8.9M	68%	10%	57	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)
Connecticut River Watershed Council INC The CONNECTICUT RIVER conservancy (crc) restores and advocates for clean water, healthy habitats, and… 04-2148397 · FY2023	Greenfield, MA	$3.7M	$3.6M	$5.3M	63%	13%	56	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)
Clark Fork Coalition To protect and restore the CLARK FORK watershed. 36-3428665 · FY2024	Missoula, MT	$2.5M	$2.6M	$4.5M	83%	4%	29	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)
Wissahickon Valley Watershed Association INC To protect the quality & beauty of the WISSAHICKON creek & to enhance life in the WATERSHED. 23-1568107 · FY2024	Ambler, PA	$2.0M	$1.9M	$24.1M	42%	27%	19	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)
Yukon River Drainage Fisheries Association Protecting and promoting healthy wild fisheries and their culuture in the Yukon River Drainage. 92-0135445 · FY2023	Anchorage, AK	$1.3M	$1.2M	$101.2K	87%	1%	13	501(c)(3)
Friends of the River Foundation Friends of the River protects and restores California Rivers by influencing public policy and inspiring… 94-2400210 · FY2024	Sacramento, CA	$895.8K	$784.6K	$1.4M	77%	7%	11	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)
Loyalhanna Watershed Association INC To protect, conserve and restore the natural resources of the LOYALHANNA creek WATERSHED. The ASSOCIATION… 23-7135993 · FY2023	Ligonier, PA	$673.8K	$799.1K	$3.9M	63%	12%	5	501(c)(3)
Wild Salmon River Expeditions Tca is to conserve functioning SALMON/steelhead eco-system at watershed levels; integrate angling activities… 33-1034829 · FY2024	Edmonds, WA	$608.0K	$498.8K	$848.7K	86%	4%	3	501(c)(3)
Yuba Watershed Institute To promote the sustainable use of natural resources and the protection of long-term biological diversity in… 68-0235031 · FY2024	Nevada City, CA	$569.5K	$587.4K	$703.7K	89%	1%	5	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)
Santa Fe Watershed Association To build a thriving, resilient SANTA FE river WATERSHED through collaboration, stewardship, and education… 86-0996109 · FY2024	Santa Fe, NM	$343.2K	$340.2K	$125.4K	72%	1%	7	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)
Pacific Coast Salmon Coalition Restoration of Salmon Habitat 91-1519025 · FY2024	Forks, WA	$266.5K	$256.4K	$84.0K	59%	0%	4	501(c)(3)
Acton-Wakefield Watersheds Alliance INC Protect and restore area WATERSHEDS 20-3341604 · FY2024	Union, NH	$248.4K	$267.4K	$161.6K	68%	18%	10	501(c)(3)
Back River Restoration Committee INC RESTORATION of the BACK RIVER watershed 26-2595058 · FY2024	Baltimore, MD	$244.2K	$273.5K	$201.2K	96%	0%	15	501(c)(3)
Running Rivers Our mission is to conserve and restore native fish ecosystems by educating and inspiring a diverse community… 81-1625829 · FY2025	Denver, CO	$186.5K	$142.3K	$466.0K	58%	0%	—	501(c)(3)
Curry Watersheds Nonprofit Protect and enhance WATERSHEDS 33-1118832 · FY2024	Gold Beach, OR	$176.3K	—	$18.1K	—	—	—	501(c)(3)
California Society for Ecological Restoration The organization is dedicated to the purpose of bringing about the recovery of damaged ecosystems in… 77-0544536 · FY2024	Sacramento, CA	$160.9K	—	$25.2K	—	—	1	501(c)(3)
Trout Unlimited Mianus Chapter To conserve, protect and restore north america's coldwater fisheries and their watersheds. 51-0225098 · FY2024	Wilton, CT	$149.2K	$285.0K	$147.5K	96%	0%	—	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)
Cahaba Foundation INC Preserve the site of Cahaba, Alabama 26-1899901 · FY2024	Selma, AL	$133.0K	$77.0K	$587.7K	96%	0%	—	501(c)(3)
Society for Biodiversity Preservation 82-2245785 · FY2025	Washington, DC	$122.8K	—	$14.0K	—	—	—	501(c)(3)
Watershed Preservation Network 68-0484190 · FY2024	San Geronimo, CA	$121.6K	—	$28.4K	—	—	—	501(c)(3)
Sacramento River Watershed Program To ensure that current and potential uses of the watersheds resources are sustained, restored, and where… 68-0486576 · FY2022	Chico, CA	$105.4K	—	$101.5K	—	—	—	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)
Salmon Restoration Association of California INC 68-0030799 · FY2024	Fort Bragg, CA	$73.6K	—	$150.4K	—	—	—	501(c)(3)
Weir River Watershed Association INC 10-0002238 · FY2023	Hull, MA	$68.9K	—	$0	—	—	—	501(c)(3)
Cisco Chain Riparian Owners Association INC Preservation of natural resources (conservation) 38-2479376 · FY2024	Watersmeet, MI	$56.7K	$101.9K	$349.8K	91%	0%	—	501(c)(3)

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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