Data / Nonprofits / Illinois / Winnetka / Human services
Human services nonprofits in Winnetka, IL: 16 registered with the IRS
16 human services nonprofits are registered with the IRS in Winnetka, IL, 16 of them 501(c)(3) charities; the 8 that report revenue took in $8.2 million. The largest by revenue: North Shore Country Day School Foundation ($3.7 million), Harkness House for Children Inc ($1.8 million), Madonna Mission ($1.1 million).
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Every organization, largest by revenue first
| Organization | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|
| North Shore Country Day School Foundation | 501(c)(3) | 1962 | $3.7 million | $42 million | 2025-06 |
| Harkness House for Children Inc | 501(c)(3) | 1998 | $1.8 million | $1.1 million | 2025-12 |
| Madonna Mission | 501(c)(3) | 2011 | $1.1 million | $921,701 | 2025-12 |
| Aftermath | 501(c)(3) | 2021 | $983,006 | $827,325 | 2025-12 |
| Harkness Outreach Center NSP | 501(c)(3) | 2002 | $276,837 | $968,968 | 2024-12 |
| Data Equity Project Inc | 501(c)(3) | 2022 | $206,425 | $9,574 | 2025-12 |
| Yust Pust Foundation | 501(c)(3) | 2010 | $75,528 | $132,905 | 2025-12 |
| Human Element Foundation | 501(c)(3) | 2022 | $75,000 | $40,016 | 2024-12 |
| Armstrong Family Foundation | 501(c)(3) | 2015 | $538,704 | 2025-12 | |
| Filip Family Foundation | 501(c)(3) | 2025 | $266,822 | 2024-12 | |
| Friends of Conor Inc | 501(c)(3) | 2014 | $7,561 | 2025-12 | |
| Litowitz Family Foundation | 501(c)(3) | 2012 | $7.6 million | 2024-12 | |
| Mark Erwin Dillingham Memorial Foundation Inc | 501(c)(3) | 2025 | |||
| Pitch Your Peers Inc | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Special Chefs Inc | 501(c)(3) | 2001 | $0 | $0 | 2025-11 |
| Windsor Tough NFP | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
Other causes in Winnetka, IL
- Philanthropy, voluntarism and grantmaking foundations 38
- Education 21
- Recreation and sports 12
- Community improvement and capacity building 7
- Arts, culture and humanities 6
- Youth development 6
- Environment 6
- International, foreign affairs and national security 4
- Religion-related 4
- Food, agriculture and nutrition 3
- Public and societal benefit 3
Every nonprofit in Winnetka, IL · Human services 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.