Data / Nonprofits / Connecticut / Stonington / Environment
Environment nonprofits in Stonington, CT: 5 registered with the IRS
5 environment nonprofits are registered with the IRS in Stonington, CT, 5 of them 501(c)(3) charities; the 1 that report revenue took in $32,415. The largest by revenue: Stonington Land Trust Inc ($32,415).
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Every organization, largest by revenue first
| Organization | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|
| Stonington Land Trust Inc | 501(c)(3) | 2007 | $32,415 | $2.8 million | 2025-06 |
| Conneticut Maritime Foundation Inc | 501(c)(3) | 2003 | $7,054 | 2025-12 | |
| Earth Optimist Club | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Federated Garden Clubs of Connecticut Inc | 501(c)(3) | 1967 | $0 | $0 | 2025-06 |
| The Sea Life Foundation Inc | 501(c)(3) | 2026 | $0 | $0 | 2026-03 |
Other causes in Stonington, CT
- Arts, culture and humanities 12
- Philanthropy, voluntarism and grantmaking foundations 9
- Recreation and sports 7
- Human services 7
- Education 4
- Community improvement and capacity building 4
- Public and societal benefit 3
Every nonprofit in Stonington, 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.