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Data / Nonprofits / Connecticut / Wilton / Environment

Environment nonprofits in Wilton, CT: 8 registered with the IRS

8 environment nonprofits are registered with the IRS in Wilton, CT, 8 of them 501(c)(3) charities; the 5 that report revenue took in $1.6 million. The largest by revenue: Woodcock Nature Center Inc ($771,667), Wilton Land Conservation Trust ($403,466), Norwalk River Watershed Association Inc ($222,427).

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Every organization, largest by revenue first

OrganizationTypeSinceRevenueAssetsFiling
Woodcock Nature Center Inc501(c)(3)1972$771,667$738,1912024-12
Wilton Land Conservation Trust501(c)(3)1964$403,466$3.5 million2025-12
Norwalk River Watershed Association Inc501(c)(3)1999$222,427$782,7332025-12
Pollinator Pathway Inc501(c)(3)2022$147,458$223,5442025-12
Federated Garden Clubs of Connecticut Inc501(c)(3)1967$77,684$299,0852025-06
Better Planet Fund501(c)(3)2025$0$02025-12
Center for Coastal Preservation Inc501(c)(3)2011$0$02025-12
Ocean Connect Inc501(c)(3)2022$0$02024-12

Other causes in Wilton, CT

Every nonprofit in Wilton, CT · Environment nonprofits across the state · Nonprofits in every city of the state

Read from the IRS Exempt Organizations Business Master File, updated by the IRS on October 24, 2026 and rebuilt here every morning. Revenue and assets are from each organization's latest filing as the IRS lists it; the IRS record is the official one. Organizations only: no people are named on these pages.