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Data / Nonprofits / Connecticut / Hamden / Environment

Environment nonprofits in Hamden, CT: 5 registered with the IRS

5 environment nonprofits are registered with the IRS in Hamden, CT, 5 of them 501(c)(3) charities; the 2 that report revenue took in $729,379. The largest by revenue: Southwest Conservation District Inc ($582,385), Edgerton Park Conservancy Inc ($146,994).

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Every organization, largest by revenue first

OrganizationTypeSinceRevenueAssetsFiling
Southwest Conservation District Inc501(c)(3)1983$582,385$542,2122025-06
Edgerton Park Conservancy Inc501(c)(3)1972$146,994$511,1592025-05
Elis Garden of Healing501(c)(3)2022$0$02025-12
Hamden Homicide Memorial Botanical Garden of Healing501(c)(3)2023$0$02025-12
West Rock Ridge Park Association Inc501(c)(3)2021$0$02025-12

Other causes in Hamden, CT

Every nonprofit in Hamden, 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.