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Organization	Location	Revenue	Expenses	Assets	Program	Fundr. cost	Employees	Type
Brookgreen Gardens BROOKGREEN GARDENS was formed in 1931 to collect, preserve and exhibit american sculpture, and the flora and… 57-0380356 · FY2023	Pawleys Island, SC	$16.0M	$11.6M	$91.2M	82%	11%	187	501(c)(3)
The Fund for Parks and Recreation in Boston To provide residents and visitors with clean, green, safe, and accessible open space in more than 2,300 acres… 04-2784811 · FY2023	Boston, MA	$10.0M	$6.9M	$32.5M	59%	0%	14	501(c)(3)
Flathead Land Trust INC FLATHEAD LAND TRUST is dedicated to the conservation of northwest montana's LAND and water through voluntary… 36-3479966 · FY2024	Kalispell, MT	$9.4M	$9.8M	$1.8M	98%	0%	3	501(c)(3)
New Jersey Audubon Society Our two fold mission is connecting people to nature and stewarding the nature of today for the people of… 22-1539642 · FY2024	Bernardsville, NJ	$8.5M	$7.3M	$38.1M	76%	15%	122	501(c)(3)
Monmouth Conservation Foundation MONMOUTH CONSERVATION FOUNDATION was organized in 1977 by a group of citizens for the following purposes: to… 22-2185314 · FY2023	Middletown, NJ	$7.8M	$1.0M	$11.3M	48%	24%	7	501(c)(3)
Canyonlands Natural History Association 87-0274120 · FY2024	Moab, UT	$6.8M	$4.7M	$18.2M	85%	0%	53	501(c)(3)
Berkshire Natural Resources Council INC 04-2430091 · FY2023	Lenox, MA	$6.7M	$2.9M	$42.1M	65%	16%	30	501(c)(3)
New Jersey Conservation Foundation To preserve land and natural resources throughout NEW JERSEY for the benefit of all. 22-6065456 · FY2024	Far Hills, NJ	$6.2M	$5.9M	$67.5M	76%	14%	37	501(c)(3)
The Land Conservancy of New Jersey Preserve LAND & water resources; conserve open space; protect LAND and the environment. 22-2378868 · FY2024	Boonton, NJ	$5.3M	$2.6M	$26.4M	81%	9%	28	501(c)(3)
Steep Rock Association INC To conserve ecologically and historically significant landscapes in and around washington, ct and the shepaug… 06-6069060 · FY2024	Washington Dt, CT	$4.6M	$1.3M	$32.4M	63%	17%	13	501(c)(3)
Blandford Nature Center Using 264 acres of land and wildlife as the backdrop, BLANDFORD NATURE CENTER provides education and… 20-0739420 · FY2024	Grand Rapids, MI	$4.5M	$2.4M	$21.3M	68%	15%	55	501(c)(3)
Elings Park Foundation ELINGS PARK is the largest recreational complex in santa barbara providing outdoor recreational needs and… 95-3500475 · FY2024	Santa Barbara, CA	$4.0M	$2.1M	$13.9M	71%	14%	11	501(c)(3)
Delaware Nature Society INC DELAWARE NATURE SOCIETY connects people with the natural world to improve our environment through education… 51-6018321 · FY2024	Hockessin, DE	$4.0M	$5.2M	$51.9M	82%	6%	143	501(c)(3)
Bluff Lake Nature Center BLUFF LAKE NATURE CENTER is a unique urban natural area dedicated to educating and inspiring people of all… 84-1305302 · FY2024	Denver, CO	$2.5M	$884.2K	$12.7M	79%	9%	16	501(c)(3)
Beaver Brook Association INC BEAVER BROOK association's mission is to promote and understanding of interrationships in the natural worl… 02-0267159 · FY2024	Hollis, NH	$2.4M	$1.1M	$11.6M	56%	10%	41	501(c)(3)
New Jersey League of Conservation Voters Education Fund Dedicated to protecting our precious natural resources by elevating the importance of environmental issues in… 45-2995824 · FY2024	Trenton, NJ	$2.4M	$1.6M	$1.9M	80%	7%	—	501(c)(3)
Brewster Conservation Trust 04-2798931 · FY2024	Brewster, MA	$2.3M	$1.4M	$29.8M	98%	0%	—	501(c)(3)
Wildlands Trust INC The WILDLANDS TRUST works throughout southeastern massachusetts to conserve and permanently protect native… 04-2973205 · FY2023	Plymouth, MA	$1.9M	$2.7M	$13.8M	81%	6%	19	501(c)(3)
North Shore Community Land Trust Natural resource conservation & protection 94-3276211 · FY2024	Haleiwa, HI	$1.7M	$437.2K	$1.8M	83%	5%	4	501(c)(3)
South Jersey Land & Water Trust INC Preserve and Protect the land and water resources of southern New Jersey. Maintaining and enhancing the… 22-3298885 · FY2024	Swedesboro, NJ	$1.7M	$1.6M	$2.9M	97%	1%	8	501(c)(3)
Sourland Conservancy To protect, promote and preserve the unique character of the SOURLAND mountain region. 22-3707157 · FY2024	Skillman, NJ	$539.2K	$533.5K	$426.9K	76%	7%	10	501(c)(3)
Greater Worcester Land Trust INC 22-2857318 · FY2024	Worcester, MA	$528.7K	$265.6K	$11.2M	44%	27%	2	501(c)(3)
Branch Brook Park Alliance INC The primary exempt purpose of BRANCH BROOK PARK ALLIANCE is to safeguard, preserve, maintain, and enhance… 01-0716364 · FY2024	Newark, NJ	$392.4K	$417.9K	$89.2K	98%	0%	—	501(c)(3)
New Marlborough Land Trust INC 22-2753704 · FY2024	Southfield, MA	$374.4K	$84.2K	$2.3M	82%	5%	3	501(c)(3)
Southwest Iowa Nature Trails Project INC Preservation of natural resources 42-1325845 · FY2024	Imogene, IA	$352.4K	$194.5K	$843.9K	91%	0%	3	501(c)(3)
Flathead Lakers INC Protecting Clean Water, Ecosystems 81-0192810 · FY2024	Polson, MT	$291.2K	$359.2K	$357.0K	69%	0%	4	501(c)(3)
Colebrook Land Conservancy INC Conservation of LAND 06-1165984 · FY2024	Colebrook, CT	$216.8K	$11.1K	$4.3M	32%	0%	—	501(c)(3)
The Great Egg Harbor Watershed Association a New Jersey Not for Educate the public to protect the environment, history, and culture of the Great Egg Harbor Watershed. 22-3024853 · FY2024	Newtonville, NJ	$204.4K	$198.6K	$326.5K	91%	0%	3	501(c)(3)
Beacon Hill Garden Club Help "green" boston through restoration of public spaces, environmental education and outreach dedicated to… 23-7451428 · FY2024	Boston, MA	$203.6K	$152.3K	$196.9K	100%	0%	—	501(c)(3)
Coastal Bend Bays Foundation INC Coastal Bend Bays Foundation is dedicated to the conservation of freshwater and coastal natural resources for… 74-2603919 · FY2024	Corpus Christi, TX	$183.1K	$137.9K	$147.7K	72%	0%	2	501(c)(3)
Ashburnham Conservation Tr INC CONSERVATION of land 04-3504474 · FY2024	Ashburnham, MA	$166.1K	$51.9K	$577.5K	46%	0%	—	501(c)(3)
Marblehead Conservancy INC Preservation of natural, open space 04-3569947 · FY2025	Marblehead, MA	$158.4K	$57.9K	$709.1K	100%	0%	1	501(c)(3)
The Bass Foundation INC To nurture and enrich the lives of individuals in underserved New Jersey communities primarily located in… 22-3207547 · FY2024	Livingston, NJ	$155.9K	$248.3K	$274.2K	84%	10%	6	501(c)(3)
Jacobs Creek Watershed Association Jacobs Creek Watershed Association is a non-profit organization dedicated to the conservation of our natural… 25-1831326 · FY2024	Scottdale, PA	$143.8K	—	$69.8K	—	—	2	501(c)(3)
Somerset County Conservancy Charitable Trust Preservation of natural resources 25-1752974 · FY2024	Berlin, PA	$128.3K	$43.2K	$1.3M	76%	6%	—	501(c)(3)
Palisades Nature Association To promote and sponsor, with the cooperation of the PALISADES interstate park commission, a sanctuary on the… 22-6000986 · FY2024	Alpine, NJ	$124.6K	$154.7K	$620.8K	89%	0%	2	501(c)(3)
Preservation New Jersey Incorporated Preservation New Jersey promotes the economic vitality, sustainability, and heritage of New Jerseys diverse… 22-2344109 · FY2024	Hawthorne, NJ	$115.8K	—	$60.6K	—	—	—	501(c)(3)
Putney Mountain Association Incorporated Putney Mountain Association believes there is a vital link between humans and the natural environment. Our… 03-0316666 · FY2024	Putney, VT	$90.1K	$86.1K	$2.1M	70%	5%	—	501(c)(3)
Green-Rock Audubon Society INC Preservation of the habitat for fish, birds, and other wildlife 39-1724790 · FY2024	Janesville, WI	$72.5K	$61.7K	$1.1M	95%	1%	—	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