Data / Nonprofits / Massachusetts / Waltham / Health care
Health care nonprofits in Waltham, MA: 23 registered with the IRS
23 health care nonprofits are registered with the IRS in Waltham, MA, 21 of them 501(c)(3) charities; the 15 that report revenue took in $32.6 million. The largest by revenue: New England Donor Services Inc ($17.5 million), CHS of Waltham Inc ($11 million), Healthy Waltham Inc ($2.6 million).
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Every organization, largest by revenue first
Other causes in Waltham, MA
- Education 49
- Arts, culture and humanities 49
- Religion-related 48
- Human services 39
- Philanthropy, voluntarism and grantmaking foundations 30
- Community improvement and capacity building 23
- Recreation and sports 11
- Public and societal benefit 10
- Youth development 9
- Mental health and crisis intervention 7
- Environment 7
- International, foreign affairs and national security 7
- Housing and shelter 4
- Medical research 4
- Animal-related 3
- Mutual and membership benefit 3
- Food, agriculture and nutrition 3
- Science and technology 3
Every nonprofit in Waltham, MA · Health care 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.