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Data / Nonprofits / Connecticut / Stamford / Environment

Environment nonprofits in Stamford, CT: 13 registered with the IRS

13 environment nonprofits are registered with the IRS in Stamford, CT, 13 of them 501(c)(3) charities; the 8 that report revenue took in $13 million. The largest by revenue: Keep America Beautiful Inc ($7.7 million), Sound Waters Inc ($3.3 million), Bartlett Arboretum Association Inc ($1.3 million).

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Every organization, largest by revenue first

OrganizationTypeSinceRevenueAssetsFiling
Keep America Beautiful Inc501(c)(3)1955$7.7 million$4.8 million2024-12
Sound Waters Inc501(c)(3)1989$3.3 million$17.8 million2025-06
Bartlett Arboretum Association Inc501(c)(3)1966$1.3 million$2.5 million2025-06
Chatham Rock Island Inc501(c)(3)2023$330,483$991,1802025-12
Keep Stamford Beautiful Inc501(c)(3)1999$210,544$160,7762025-06
Stamford Land Conservation Trust Inc501(c)(3)1972$63,633$60.8 million2025-12
Going Coastal Inc501(c)(3)2003$29,682$592,0032025-12
Merritt Parkway Conservancy Inc501(c)(3)2002$20,158$139,5322025-06
Bringing Accountability for Sherwin S Harms-Bash501(c)(3)2026
Cove Island Park Conservancy501(c)(3)2011$0$02024-12
Cove Island Wildlife Sanctuary501(c)(3)2008$0$02024-12
Federated Garden Clubs of CT501(c)(3)2022$0$02025-12
Lesleys Recycling Corp501(c)(3)2022$0$02025-12

Other causes in Stamford, CT

Every nonprofit in Stamford, 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.