Data / Nonprofits / Maryland / Windsor Mill / Employment
Employment nonprofits in Windsor Mill, MD: 4 registered with the IRS
4 employment nonprofits are registered with the IRS in Windsor Mill, MD, 3 of them 501(c)(3) charities; the 2 that report revenue took in $11.7 million. The largest by revenue: Spectrum Support Inc ($9.5 million), American Federation of Teachers ($2.2 million).
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Every organization, largest by revenue first
| Organization | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|
| Spectrum Support Inc | 501(c)(3) | 1990 | $9.5 million | $6.8 million | 2025-06 |
| American Federation of Teachers | 501(c)(5) | 1967 | $2.2 million | $6 million | 2025-06 |
| Baltimores Dynamic Women Inc | 501(c)(3) | 2016 | $0 | $0 | 2024-12 |
| Chains Connecting Humanity and Influencing New Standards Inc | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
Other causes in Windsor Mill, MD
- Religion-related 51
- Human services 40
- Education 11
- Youth development 11
- Philanthropy, voluntarism and grantmaking foundations 8
- Community improvement and capacity building 6
- Health care 6
- Arts, culture and humanities 6
- Housing and shelter 4
- Recreation and sports 4
- Public and societal benefit 3
- International, foreign affairs and national security 3
Every nonprofit in Windsor Mill, MD · Employment 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.