Data / Nonprofits / Delaware / Wilmington / Environment
Environment nonprofits in Wilmington, DE: 45 registered with the IRS
45 environment nonprofits are registered with the IRS in Wilmington, DE, 45 of them 501(c)(3) charities; the 21 that report revenue took in $84.7 million. The largest by revenue: Sunrise Project Inc ($61.1 million), WRLD Foundation ($11 million), Partnership for the Delaware Estuary Inc ($4.6 million).
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Every organization, largest by revenue first
| Organization | Type | Since | Revenue | Assets | Filing |
|---|
| Sunrise Project Inc | 501(c)(3) | 2022 | $61.1 million | $14 million | 2024-12 |
| WRLD Foundation | 501(c)(3) | 2022 | $11 million | $2 million | 2024-12 |
| Partnership for the Delaware Estuary Inc | 501(c)(3) | 1996 | $4.6 million | $3.5 million | 2024-12 |
| American Public Gardens Association | 501(c)(3) | 1971 | $3.8 million | $1.2 million | 2025-12 |
| Delaware Center for Horticulture Inc | 501(c)(3) | 1980 | $1.4 million | $6.2 million | 2025-09 |
| Climate Catalyst Inc | 501(c)(3) | 2024 | $785,229 | $784,914 | 2024-12 |
| Nature Is Nonpartisan | 501(c)(3) | 2024 | $400,000 | $316,699 | 2024-12 |
| Brights Creek Conservancy Inc | 501(c)(3) | 2021 | $378,645 | $539,804 | 2025-12 |
| Harry C Green Residuary Trust Ua 01271993 | 501(c)(3) | 2008 | $373,338 | $7.9 million | 2025-12 |
| Eco Plastic Products of Delaware Inc | 501(c)(3) | 2015 | $287,858 | $55,863 | 2025-12 |
| Delaware Greenways Inc | 501(c)(3) | 1990 | $174,120 | $254,804 | 2024-12 |
| Plastic Free Delaware | 501(c)(3) | 2020 | $156,837 | $52,256 | 2025-12 |
| Foundation for Renewable Energy and the Environment | 501(c)(3) | 2016 | $91,778 | $382,383 | 2024-12 |
| Garden Club of Wilmington Community Projects Inc | 501(c)(3) | 1983 | $72,885 | $496,936 | 2025-06 |
| Breathe Mongolia - Clean Air Coalition Inc | 501(c)(3) | 2019 | $65,884 | $133,606 | 2024-12 |
| Christina Conservancy Inc | 501(c)(3) | 1983 | $35,292 | $290,029 | 2025-09 |
| Friends of Forwood Preserve Inc | 501(c)(3) | 2022 | $4,539 | $88,407 | 2025-12 |
| Friends of Brandywine Springs | 501(c)(3) | 1993 | $2,783 | $70,650 | 2025-12 |
| The Luester T Mertz Legacy Trust for the Joyce Theater Foundation | 501(c)(3) | 2022 | $2,068 | $2.2 million | 2025-12 |
| Rodney Square Conservancy Inc | 501(c)(3) | 2024 | $500 | $104,107 | 2024-12 |
| Aviation Climate Taskforce Inc | 501(c)(3) | 2022 | $496 | $1.1 million | 2024-12 |
| 100 Black Men of Delaware | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Al Clinton Charitable Foundation | 501(c)(3) | 2023 | | $321,469 | 2024-12 |
| Amitra Vitta Trust | 501(c)(3) | 2024 | | | |
| Aquarium Divers for Coral Society | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Area Power Alliance for Rural Energy and Agriculture Inc | 501(c)(3) | 2024 | | | |
| Atlantic Biodiversity Institute | 501(c)(3) | 2025 | | | |
| Brandywine Shad 2020 Inc | 501(c)(3) | 2019 | | $344,663 | 2024-12 |
| Claymont Coalition for Environmental Justice Inc | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Clean Coast Initiative Foundation | 501(c)(3) | 2025 | | | |
| College and University Alumni for A Sustainable Planet | 501(c)(3) | 2024 | $0 | $0 | 2026-01 |
| Congo Conservation Foundation | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Delaware Green Recycling Community Outreach | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Environmental Justice Foundation Inc | 501(c)(3) | 2023 | | $1 | 2024-12 |
| Garden Gate Garden Club | 501(c)(3) | 2019 | $0 | $0 | 2026-06 |
| Greenkwacha Foundation | 501(c)(3) | 2026 | | | |
| Grow One Future Inc | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Hospitality for Trees Inc | 501(c)(3) | 2023 | $0 | $0 | 2026-01 |
| Mango Manor Foundation | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| New Earth Foundation Inc | 501(c)(3) | 1998 | | $1.5 million | 2024-12 |
| Redlac Incorporated | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Sky Foundation | 501(c)(3) | 2022 | | $10 million | 2024-12 |
| The Research Foundation for the Innovation of Eco-Education | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Towle Ocean Conservation Foundation | 501(c)(3) | 2016 | | $1 million | 2024-12 |
| United States of America Preservati On and Beautification Foundation | 501(c)(3) | 2026 | | | |
Other causes in Wilmington, DE
Every nonprofit in Wilmington, DE · 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.