Data / Nonprofits / Pennsylvania / Williamsport / Environment
Environment nonprofits in Williamsport, PA: 9 registered with the IRS
9 environment nonprofits are registered with the IRS in Williamsport, PA, 8 of them 501(c)(3) charities; the 4 that report revenue took in $5.7 million. The largest by revenue: Northcentral Pennsylvania Conservancy ($5.2 million), Antrim Treatment Trust ($462,775), Pine Glen Treatment Trust ($45,075).
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Every organization, largest by revenue first
| Organization | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|
| Northcentral Pennsylvania Conservancy | 501(c)(3) | 1990 | $5.2 million | $7.3 million | 2024-12 |
| Antrim Treatment Trust | 501(c)(3) | 2015 | $462,775 | $2.9 million | 2025-12 |
| Pine Glen Treatment Trust | 501(c)(3) | 2019 | $45,075 | $564,381 | 2025-12 |
| Tioga River Trust | 501(c)(3) | 2017 | $41,654 | $645,328 | 2025-12 |
| Collomsville Mutual Water Works Inc | 501(c)(12) | 2020 | $0 | $0 | 2025-12 |
| Lycoming Biology Field Station Inc | 501(c)(3) | 2016 | $0 | $0 | 2025-06 |
| Milkweed Monarchy Inc | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Newberry Community Partnership | 501(c)(3) | 2006 | $0 | $0 | 2024-12 |
| Williamsport Bicycle Recycle Inc | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
Other causes in Williamsport, PA
- Recreation and sports 31
- Education 30
- Religion-related 27
- Human services 24
- Philanthropy, voluntarism and grantmaking foundations 14
- Community improvement and capacity building 12
- Arts, culture and humanities 10
- Health care 9
- Public and societal benefit 8
- Animal-related 7
- Mutual and membership benefit 7
- Crime and legal-related 5
- Public safety, disaster preparedness and relief 5
- Youth development 5
- Mental health and crisis intervention 4
Every nonprofit in Williamsport, PA · 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.