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Data / Nonprofits / Connecticut / Westport / Environment

Environment nonprofits in Westport, CT: 10 registered with the IRS

10 environment nonprofits are registered with the IRS in Westport, CT, 10 of them 501(c)(3) charities; the 5 that report revenue took in $5 million. The largest by revenue: Earthplace the Nature Discovery Center Inc ($4.1 million), Westport Womans Club Inc ($640,084), Direct Air Capture Coalition Inc ($171,185).

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Every organization, largest by revenue first

OrganizationTypeSinceRevenueAssetsFiling
Earthplace the Nature Discovery Center Inc501(c)(3)1959$4.1 million$7.8 million2025-06
Westport Womans Club Inc501(c)(3)1967$640,084$2.7 million2025-08
Direct Air Capture Coalition Inc501(c)(3)2023$171,185$151,0622024-12
Blau House & Gardens Inc501(c)(3)2022$127,420$117,3352025-12
Remarkable Steam Inc501(c)(3)2014$4,834$9,3092025-12
Fairfield Bridle Trails Assoc Inc501(c)(3)1997$0$02025-12
Friends of Sherwood Island State Park501(c)(3)1997$0$02024-12
Saugatuck Safe Harbor Foundation501(c)(3)2026
Sustainable Westport Inc501(c)(3)2023$0$02025-12
Westport Evergreen Inc501(c)(3)2017$0$02025-12

Other causes in Westport, CT

Every nonprofit in Westport, 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.