Data / Nonprofits / Massachusetts / Waltham / Philanthropy, voluntarism and grantmaking foundations
Philanthropy, voluntarism and grantmaking foundations nonprofits in Waltham, MA: 30 registered with the IRS
30 philanthropy, voluntarism and grantmaking foundations nonprofits are registered with the IRS in Waltham, MA, 29 of them 501(c)(3) charities; the 6 that report revenue took in $2.4 million. The largest by revenue: Jewish Big Brother-Sister Association of Boston ($2.1 million), Waltham Lions Charitable Foundation Inc ($147,602), Osia Charitable & Educational Trust ($67,225).
SpecStream is the live web data engine for teams and agents. It reads the IRS register of exempt organizations as the IRS updates it, and this page is that reading. Ask for the nonprofits you need by place, cause and size, with their latest Form 990 figures and websites, and they arrive in your sheet, CRM, Slack or agent.
Every organization, largest by revenue first
| Organization | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|
| Jewish Big Brother-Sister Association of Boston | 501(c)(3) | 1946 | $2.1 million | $2.6 million | 2025-09 |
| Waltham Lions Charitable Foundation Inc | 501(c)(3) | 2006 | $147,602 | $119,203 | 2025-06 |
| Osia Charitable & Educational Trust | 501(c)(3) | 1985 | $67,225 | $567,115 | 2024-12 |
| Lamacchia Cares Foundation Inc | 501(c)(3) | 2026 | $54,786 | $22,199 | 2025-06 |
| Rotary International | 501(c)(4) | 2014 | $13,527 | $2,263 | 2025-06 |
| Bivf Foundation Inc | 501(c)(3) | 2022 | $5,696 | $128,619 | 2025-12 |
| American Assistance Center Inc | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| American Society of Islamic Philosophy and Theology | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Andromeda Foundation | 501(c)(3) | 2010 | $2.2 million | 2025-12 | |
| DWSS Inc | 501(c)(3) | 2007 | $6.9 million | 2024-12 | |
| Dassault Systemes Foundation | 501(c)(3) | 2016 | $135,871 | 2025-12 | |
| Donald & Priscilla Felt Charitable Foundation | 501(c)(3) | 2010 | $1.8 million | 2025-12 | |
| Doris Buffett Legacy Foundation Inc | 501(c)(3) | 2017 | $5 million | 2024-12 | |
| Grewal Charitable Foundation | 501(c)(3) | 2000 | $9,170 | 2025-06 | |
| Health Education Charitable Foundat Ion Inc | 501(c)(3) | 2026 | |||
| Japa Foundation | 501(c)(3) | 2004 | $652,313 | 2024-12 | |
| Jewish Family and Childrens Foundation Inc | 501(c)(3) | 1991 | $0 | $3.3 million | 2025-09 |
| Joann Denapoli Charitable Foundation Inc | 501(c)(3) | 2016 | $3.9 million | 2025-12 | |
| King Family Scholarship Fund Inc | 501(c)(3) | 2014 | $0 | $0 | 2023-12 |
| Linda K Marino Charitable Trust | 501(c)(3) | 2007 | $136,465 | 2024-12 | |
| MR Owl Foundation | 501(c)(3) | 2013 | $2.6 million | 2025-06 | |
| Mercer Family Foundation | 501(c)(3) | 2005 | $88.3 million | 2024-12 | |
| Merlin Charitable Foundation | 501(c)(3) | 2014 | $413,806 | 2025-12 | |
| Newton Samuel Johnson Foundation | 501(c)(3) | 2022 | $417,301 | 2025-12 | |
| Oakpoint Charitable Foundation | 501(c)(3) | 2017 | $35.7 million | 2024-12 | |
| Rvty Foundation | 501(c)(3) | 2021 | $9.8 million | 2025-06 | |
| Singing Field Foundation Inc | 501(c)(3) | 1998 | $3.6 million | 2024-05 | |
| Single Step Foundation | 501(c)(3) | 2008 | $765,602 | 2025-12 | |
| Stephen & Karla Forgiel Charitable Foundation | 501(c)(3) | 2014 | $625,485 | 2025-12 | |
| Weissman Fam Charitable Foundation 11152000 | 501(c)(3) | 2001 | $6.7 million | 2024-12 |
Other causes in Waltham, MA
- Education 49
- Arts, culture and humanities 49
- Religion-related 48
- Human services 39
- Health care 23
- 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 · Philanthropy, voluntarism and grantmaking foundations 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.