Data / Nonprofits / Massachusetts / Winchester
Nonprofits in Winchester, MA: 214 registered with the IRS
214 nonprofits are registered with the IRS in Winchester, MA, 190 of them 501(c)(3) charities; the 95 that report revenue took in $77.6 million. The largest by revenue: Schools for Children Inc ($20 million), Winchester Country Club ($10.4 million), Acera School Inc ($7.4 million). Most common causes: education (43), philanthropy, voluntarism and grantmaking foundations (23), recreation and sports (18).
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Every organization, largest by revenue first
| Organization | Category | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| Schools for Children Inc | Education | 501(c)(3) | 1981 | $20 million | $25.8 million | 2025-06 |
| Winchester Country Club | Recreation and sports | 501(c)(7) | 1935 | $10.4 million | $22.9 million | 2024-12 |
| Acera School Inc | Education | 501(c)(3) | 2010 | $7.4 million | $13.6 million | 2025-06 |
| Winchester Soccer Club | Recreation and sports | 501(c)(3) | 1997 | $4.2 million | $21.6 million | 2025-10 |
| Winchester Community Music School Trust | Arts, culture and humanities | 501(c)(3) | 1984 | $4 million | $11.3 million | 2025-07 |
| African Collaborative Inc | International, foreign affairs and national security | 501(c)(3) | 2023 | $3.2 million | $3.3 million | 2024-12 |
| Wright Locke Farm Conservancy Inc | Environment | 501(c)(3) | 2009 | $1.9 million | $1.9 million | 2025-03 |
| Mastery Transcript Consortium | 501(c)(3) | 2017 | $1.8 million | $0 | 2025-09 | |
| Childrens Own School Inc | 501(c)(3) | 1949 | $1.8 million | $2.4 million | 2025-06 | |
| Winchester After School Program | Human services | 501(c)(3) | 1982 | $1.7 million | $956,225 | 2025-08 |
| Winchester Swim Club Inc | 501(c)(7) | 1969 | $1.6 million | $5.7 million | 2025-12 | |
| 1for3 Dot Org Inc | International, foreign affairs and national security | 501(c)(3) | 2011 | $1.5 million | $786,551 | 2025-12 |
| Winchester Boat Club | 501(c)(7) | 1997 | $1.4 million | $4.2 million | 2024-12 | |
| Winchester Scholarship Foundation | Education | 501(c)(3) | 1947 | $1.2 million | $15.8 million | 2025-06 |
| Reboot RX Inc | Medical research | 501(c)(3) | 2020 | $1 million | $2.2 million | 2025-06 |
| Winchester Seniors Association Inc | 501(c)(3) | 1977 | $904,804 | $8.9 million | 2026-03 | |
| Bloom India Development Foundation Inc | Human services | 501(c)(3) | 2013 | $864,243 | $799,327 | 2024-12 |
| The Griffin Museum of Photography Inc | Arts, culture and humanities | 501(c)(3) | 2000 | $835,083 | $988,844 | 2025-05 |
| PDF Association Inc | Community improvement and capacity building | 501(c)(6) | 2020 | $746,560 | $607,438 | 2025-12 |
| Winchester Cooperative Nursery School Inc | 501(c)(3) | 1974 | $635,410 | $719,361 | 2025-06 | |
| Winchester Community Access and Media Inc | Arts, culture and humanities | 501(c)(3) | 2003 | $564,468 | $1.2 million | 2025-06 |
| Neighborhood Co-Operative Nursery School Inc | Education | 501(c)(3) | 1973 | $511,308 | $869,553 | 2025-06 |
| Massachusetts Teachers Association | 501(c)(5) | 1972 | $454,377 | $48,477 | 2025-06 | |
| En Ka Society Inc | 501(c)(3) | 1969 | $388,497 | $1.7 million | 2025-08 | |
| Winchester Youth Baseball & Softball Inc | Recreation and sports | 501(c)(3) | 2024 | $385,176 | $160,664 | 2025-08 |
| St Peters Church of Uganda - Winchester Inc | Religion-related | 501(c)(3) | 2009 | $348,459 | $1.6 million | 2024-12 |
| Society of Nurses Scientist Innovators Entrepreneurs & Leaders | Health care | 501(c)(3) | 2020 | $320,734 | $333,420 | 2024-12 |
| Winchester Committee for A Better Chance Inc | Human services | 501(c)(3) | 1971 | $289,931 | $1.3 million | 2025-06 |
| Society for Functional Near Infrared Spectroscopy Inc | Human services | 501(c)(3) | 2014 | $249,858 | $374,973 | 2024-12 |
| Cooperative Theatre for Children Inc | Arts, culture and humanities | 501(c)(3) | 1981 | $245,099 | $84,663 | 2025-12 |
| Winchester Seniors Association Trust | 501(c)(3) | 1976 | $241,433 | $3.1 million | 2026-03 | |
| Winchester News Group Inc | Arts, culture and humanities | 501(c)(3) | 2024 | $239,190 | $169,092 | 2025-12 |
| Winchester Foundation for Educational Excellence Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1993 | $233,678 | $220,835 | 2025-06 |
| Pi Kappa Alpha Fraternity | Recreation and sports | 501(c)(7) | 1941 | $229,458 | $570,006 | 2025-06 |
| Protect Global Kids Corp | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2024 | $227,283 | $20,351 | 2024-12 |
| Global Unites Inc | Youth development | 501(c)(3) | 2022 | $211,115 | $34,121 | 2024-12 |
| Kijana Foundation Incorporated | Education | 501(c)(3) | 2023 | $199,957 | $1 | 2025-12 |
| Winchester Basketball Association | Recreation and sports | 501(c)(3) | 2019 | $196,163 | $161,234 | 2025-08 |
| Benevolent & Protective Order of Elks of the USA | 501(c)(8) | 1951 | $195,908 | $479,381 | 2026-03 | |
| Medical Staff TMS - Winchester Hospital Inc | Health care | 501(c)(3) | 2025 | $195,465 | $701,087 | 2025-12 |
| Bruna Rocha Memorial Foundation Inc | Mental health and crisis intervention | 501(c)(3) | 2024 | $184,564 | $174,189 | 2024-12 |
| Vinson-Owen Parents Association | Education | 501(c)(3) | 2006 | $183,485 | $114,194 | 2025-08 |
| American Civic Association Inc | 501(c)(8) | 1992 | $180,583 | $207,805 | 2024-09 | |
| The Network for Social Justice Inc | Civil rights, social action and advocacy | 501(c)(3) | 1994 | $178,185 | $520,194 | 2025-06 |
| Reading Circuit Inc | Education | 501(c)(3) | 2023 | $170,375 | $39,078 | 2025-12 |
| Winton Club Winton Club Hospital Shop | Health care | 501(c)(3) | 1964 | $162,825 | $135,932 | 2026-04 |
| Winchester Historical Society Inc | Arts, culture and humanities | 501(c)(3) | 2005 | $152,673 | $679,053 | 2025-12 |
| Ambrose Parent Teacher Organization | Education | 501(c)(3) | 2007 | $146,315 | $60,330 | 2025-06 |
| New England College of Occupational and Environmental Medicine | Education | 501(c)(3) | 2007 | $144,933 | $84,525 | 2025-06 |
| Jonathan Del Turco Ministries Inc | Religion-related | 501(c)(3) | 2021 | $144,922 | $694,834 | 2024-12 |
| Veterans of Foreign Wars Department of Massachusetts | 501(c)(19) | 1965 | $140,873 | $154,707 | 2025-12 | |
| De Bonte Leeuw Inc | Arts, culture and humanities | 501(c)(3) | 2010 | $140,793 | $144,060 | 2025-07 |
| New England Epic-User Collaborative Inc | Health care | 501(c)(3) | 2024 | $128,729 | $106,896 | 2025-12 |
| Life International Inc | International, foreign affairs and national security | 501(c)(3) | 2019 | $127,988 | $27,853 | 2026-01 |
| Friends of the Winchester Public Library Inc | Human services | 501(c)(3) | 1992 | $126,678 | $186,404 | 2025-06 |
| Winchester Girls Youth Lacrosse | Recreation and sports | 501(c)(3) | 2022 | $111,143 | $59,849 | 2023-12 |
| Muraco Elementary School Parents Association | Education | 501(c)(3) | 2004 | $110,140 | $46,185 | 2025-06 |
| Winchester Farmers Market Community Hub Inc | Food, agriculture and nutrition | 501(c)(3) | 2016 | $103,776 | $36,594 | 2025-12 |
| Winchester Rotary Charitable Fund Inc | Community improvement and capacity building | 501(c)(3) | 1988 | $103,668 | $898,050 | 2025-06 |
| Erebuni Armenian School | Education | 501(c)(3) | 2019 | $98,862 | $23,127 | 2025-12 |
| Cappella Clausura Inc | Arts, culture and humanities | 501(c)(3) | 2005 | $92,998 | $40,962 | 2025-06 |
| New Opportunities for Wounded Widowed and Orphans of War | Human services | 501(c)(3) | 2013 | $92,217 | $1 | 2025-09 |
| Aca Soccer Inc | Recreation and sports | 501(c)(3) | 2010 | $89,987 | $67,485 | 2025-12 |
| Scuola Piccoli Italiani Di Boston Inc | Arts, culture and humanities | 501(c)(3) | 2018 | $89,250 | $156,998 | 2025-07 |
| Lynch School Parents Association | Education | 501(c)(3) | 2005 | $82,413 | $76,831 | 2025-06 |
| Resilient Roses Respite Corp | Human services | 501(c)(3) | 2021 | $81,793 | $917 | 2023-12 |
| Lincoln School Parents Association | Education | 501(c)(3) | 2005 | $78,948 | $60,610 | 2025-06 |
| Winchester Chamber of Commerce Inc | 501(c)(6) | 1980 | $75,717 | $86,255 | 2025-12 | |
| Philharmonic Society of Arlington Inc | 501(c)(3) | 1969 | $72,142 | $729,107 | 2025-07 | |
| Master Wardens & Members of the Grand Lodge of Masons in Mass | 501(c)(10) | 1954 | $70,984 | $1.6 million | 2026-08 | |
| International Association of Fire Fighters | 501(c)(5) | 1966 | $68,940 | $119,765 | 2025-03 | |
| Winchester Sports Foundation Inc | Education | 501(c)(3) | 1991 | $68,156 | $301,072 | 2024-12 |
| Pop Warner Little Scholars Inc | 501(c)(3) | 1990 | $68,104 | $13,134 | 2024-12 | |
| Marlowe Foundation Inc | Diseases, disorders and medical disciplines | 501(c)(3) | 2024 | $58,380 | $78,252 | 2025-12 |
| Dragon Tales Foundation | Arts, culture and humanities | 501(c)(3) | 2024 | $56,843 | $32,938 | 2024-12 |
| Pierce Family Fragile X Foundation Inc | Medical research | 501(c)(3) | 2016 | $56,136 | $84,694 | 2025-12 |
| Winchester High School Parent Faculty Association | Education | 501(c)(3) | 2014 | $54,941 | $10,031 | 2025-07 |
| Michael Dunleavy Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2005 | $53,804 | $60,666 | 2026-06 |
| Family Action Network of Winchester Inc | Human services | 501(c)(3) | 1998 | $48,274 | $194,946 | 2025-12 |
| Rotary International | 501(c)(4) | 1942 | $46,626 | $25,589 | 2025-06 | |
| McCall Middle School Parents Association | Education | 501(c)(3) | 2010 | $41,963 | $9,897 | 2025-06 |
| Jackson Yelle Foundation Inc | Education | 501(c)(3) | 2025 | $37,225 | $40,295 | 2025-12 |
| Clay Soper Memorial Fund Inc | Youth development | 501(c)(3) | 2016 | $28,862 | $61,947 | 2024-12 |
| Winchester Home & Garden Club | 501(c)(3) | 1988 | $28,323 | $32,849 | 2026-06 | |
| Cambodian Children Fund Inc | Human services | 501(c)(3) | 2016 | $16,124 | $30,994 | 2023-12 |
| Rich Keshian Memorial Fund | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2001 | $11,565 | $5,673 | 2025-12 |
| Winchester First Responders Fund | Education | 501(c)(3) | 2023 | $11,523 | $13,816 | 2024-12 |
| Massachusetts Mens Gathering Inc | Community improvement and capacity building | 501(c)(3) | 2013 | $10,672 | $8,208 | 2025-12 |
| U S India Security Council Inc | International, foreign affairs and national security | 501(c)(4) | 2008 | $10,000 | $9,124 | 2024-12 |
| Parent To Parent Inc | Human services | 501(c)(3) | 1997 | $9,708 | $18,270 | 2025-06 |
| Swim Winchester Inc | Recreation and sports | 501(c)(3) | 2014 | $6,801 | $46,709 | 2025-12 |
| Boston Pledge Inc | International, foreign affairs and national security | 501(c)(3) | 2003 | $4,794 | $46,045 | 2024-12 |
| Jumelage Inc | 501(c)(3) | 1992 | $2,683 | $3,333 | 2025-12 | |
| Savery Pond Conservancy | Environment | 501(c)(3) | 2019 | $500 | $7,451 | 2025-12 |
| Parker Hill Orthopedic Researchfoundation Inc | Medical research | 501(c)(3) | 2014 | $106 | $151,221 | 2024-12 |
| 1997 John and Mary Murphy Educational Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2001 | $3.1 million | 2024-12 | |
| Afghanistan Samsortya Inc | Environment | 501(c)(3) | 2010 | $0 | $0 | 2024-09 |
| American Counterterrorism Targeting and Resilience Institute Incorpor | Education | 501(c)(3) | 2020 | $0 | $0 | 2024-12 |
| American Writing Prize Inc | Education | 501(c)(3) | 2024 | |||
| Amitabha Chanting Group Inc | Religion-related | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Appalachian Springs Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2015 | $429,191 | 2024-12 | |
| Arnold Smith Foundation Inc | Education | 501(c)(3) | 2026 | |||
| Arthur Griffin Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2002 | $541,891 | 2026-02 | |
| Arthur Griffin Foundation for Winchester | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1998 | $793,666 | 2024-12 | |
| Arts Winchester Inc | Arts, culture and humanities | 501(c)(3) | 2024 | $0 | $0 | 2026-06 |
| Asha Charitable Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2005 | $0 | $0 | 2024-12 |
| Asia-Pacific Aesthetic Medicine Association Inc | Medical research | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Beacon City Church | 501(c)(3) | 1991 | ||||
| Books and Bridges | Youth development | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Boston Capital Investment Club Corp | Education | 501(c)(3) | 2016 | $177,010 | 2025-12 | |
| Boston Nankai Alumni Association | Education | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Caitlin Clavette Memorial Foundation Inc | Arts, culture and humanities | 501(c)(3) | 2017 | $0 | $0 | 2026-01 |
| Chios Societies of America Educational and Charitable Foundat | Education | 501(c)(3) | 2010 | $0 | $0 | 2025-12 |
| Chios Societies of America Inc | 501(c)(7) | 1986 | $0 | $0 | 2025-12 | |
| Choices Mentoring Initiative | Education | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| Christopher Columbus Italian Mutual Aid & Benefit Society | 501(c)(3) | 1971 | ||||
| Crawford Memorial United Methodist Church | 501(c)(3) | 1974 | 2014-12 | |||
| Creative Freedom Awards | Education | 501(c)(3) | 2013 | $0 | $0 | 2023-12 |
| Dan and Terese Heintzelman Family Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2014 | $3.2 million | 2025-12 | |
| Deran Hintlian Charitable Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2016 | $796,208 | 2025-10 | |
| District 33N Eye Mobile Inc | 501(c)(3) | 1996 | $0 | $0 | 2026-06 | |
| Do Gooder Inc | Education | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Doe Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2008 | $36.4 million | 2024-12 | |
| Eglise Baptiste Eben-Ezer | 501(c)(3) | 1955 | ||||
| Elimisha Binti Initiative Inc | Education | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Experiential Technology Inc | Education | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| First Baptist Church | 501(c)(3) | 1955 | ||||
| Freddylive Wellness Center | Recreation and sports | 501(c)(3) | 2026 | |||
| Friends of Forest Ridge | Environment | 501(c)(3) | 2026 | |||
| Friends of Wedge Pond Incorporated | Environment | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Friends of Winchester Recreation & Community Services Inc | Recreation and sports | 501(c)(3) | 1992 | $0 | $0 | 2026-06 |
| Friends of Winter Pond Inc | Environment | 501(c)(3) | 2004 | $0 | $0 | 2025-12 |
| Gamma Lambda Corp of Bethlehem Pa | 501(c)(7) | 1990 | $0 | $0 | 2024-11 | |
| Garden Club Federation of Massachusetts Inc | 501(c)(3) | 2004 | $0 | $0 | 2026-06 | |
| Giving Green Inc | Environment | 501(c)(3) | 2009 | $0 | $0 | 2025-12 |
| Global Early Detection Initiative | Health care | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Great Oak Housing Inc | Education | 501(c)(7) | 2021 | $0 | $0 | 2025-12 |
| Harry & Phyllis Manko Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1999 | $360,234 | 2025-12 | |
| Harvard Club of Quincy Inc | Education | 501(c)(3) | 2012 | $0 | $0 | 2025-12 |
| Heritage Bridges Inc | Arts, culture and humanities | 501(c)(3) | 2024 | $0 | $0 | 2025-03 |
| Hope Christian Church Inc | Religion-related | 501(c)(3) | 1995 | |||
| Inspring Healthcare Scholars Association | Education | 501(c)(3) | 2024 | |||
| Institute for Scientific Research Inc | Science and technology | 501(c)(3) | 1984 | $0 | $0 | 2025-12 |
| Islamic Art Expressions Inc | Arts, culture and humanities | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Jackson Yelle Family Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2023 | $22,964 | 2025-12 | |
| James and Veronica Chesterton Fam Foundation Trust Agreement | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2005 | $430,675 | 2025-08 | |
| Joseph M Murphy III Memorial Scholarship Trust Fund | Education | 501(c)(3) | 2005 | $0 | $0 | 2024-12 |
| Kendo On the Charles Corporation | Recreation and sports | 501(c)(3) | 2022 | $0 | $0 | 2026-05 |
| Khasm Foundation Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2001 | $42,564 | 2025-11 | |
| Knights of Columbus | 501(c)(8) | 1940 | $0 | $0 | 2025-12 | |
| Kypros Net Inc | Social science | 501(c)(3) | 1998 | $0 | $0 | 2025-12 |
| Lakay Baz Corporation | Human services | 501(c)(3) | 2025 | |||
| League of Women Voters of Massachusetts | Civil rights, social action and advocacy | 501(c)(4) | 2025 | $0 | $0 | 2026-06 |
| Led By Foundation Inc | Public and societal benefit | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Lights of Love | Public and societal benefit | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Live Learn Act Inc | Youth development | 501(c)(3) | 2011 | $0 | $0 | 2024-12 |
| Lotus Academy Inc | Education | 501(c)(3) | 2024 | $311,697 | 2025-12 | |
| Ma Chapter Americans United for Separation of Church and State | Civil rights, social action and advocacy | 501(c)(3) | 2025 | $0 | $0 | 2023-09 |
| Manufacturing Research and Wellbeing Initiative Inc | Education | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Mary E & John F Murphy Charitable Trust | Education | 501(c)(3) | 1995 | $422,929 | 2024-12 | |
| McCall Fam Charitable Foundation Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2003 | $2.3 million | 2025-12 | |
| Middlesex County Beekeepers Association | Education | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Midwest Biopharmaceutical Statistics Workshop | Health care | 501(c)(3) | 2007 | $0 | $0 | 2025-12 |
| Muslim Campus Life Corporation | Education | 501(c)(3) | 2024 | $0 | $0 | 2024-12 |
| Neighbors for Rational Growth Inc | Community improvement and capacity building | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| New England Cycling Coalition for Diversity | Recreation and sports | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| New England String Quartet Foundation | Arts, culture and humanities | 501(c)(3) | 2024 | |||
| New Leaf Initiative Inc | Human services | 501(c)(3) | 2025 | |||
| PSMC5 Foundation Inc | Medical research | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Padakshep | Education | 501(c)(3) | 2009 | $0 | $0 | 2025-12 |
| Peter French Memorial Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2004 | $75,224 | 2025-12 | |
| Peter G Colton Memorial Fund | Education | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Pitirim A Sorokin Foundation Inc | Public and societal benefit | 501(c)(3) | 2014 | $4,184 | 2024-12 | |
| Resources for Rehabilitation Inc | Human services | 501(c)(3) | 1987 | $0 | $0 | 2025-12 |
| Robert C Carco 31 Charitable Foundation | 501(c)(3) | 1990 | $180,613 | 2025-12 | ||
| Robsham Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2018 | $7.3 million | 2024-12 | |
| Saint Eulalia Parish | 501(c)(3) | 1946 | 2012-06 | |||
| Snave Foundation | 501(c)(3) | 1989 | $7.5 million | 2024-12 | ||
| Society of Miniature Ship Collectors | Education | 501(c)(4) | 2010 | $0 | $0 | 2026-06 |
| Sons of Italy in America | Mutual and membership benefit | 501(c)(8) | 1941 | $0 | $0 | 2024-12 |
| Sons of Italy in America | 501(c)(8) | 2019 | $0 | $0 | 2025-12 | |
| Soul Glow Incorporated | Mental health and crisis intervention | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Station Foundation Inc | Public and societal benefit | 501(c)(3) | 2025 | |||
| Stephen R Baum Foundation | Medical research | 501(c)(3) | 2002 | $0 | $0 | 2025-12 |
| Sunita and Brian Pereira Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2019 | $2.1 million | 2025-12 | |
| Sustainable Winchester Inc | Environment | 501(c)(3) | 2008 | $0 | $0 | 2025-12 |
| Taste of Heaven Ministry Inc | Religion-related | 501(c)(3) | 2012 | $0 | $0 | 2025-12 |
| Temple Shirtikvah Inc of Winchester | 501(c)(3) | 1992 | ||||
| The Robert and Michelle Cooke Atchinson Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1999 | $131.5 million | 2024-12 | |
| Toastmasters International | 501(c)(3) | 1945 | $0 | $0 | 2025-12 | |
| Town Common Task Force | Public and societal benefit | 501(c)(3) | 2024 | $0 | $0 | 2026-06 |
| Truth Wisdom Love Inc | Religion-related | 501(c)(3) | 2024 | |||
| Us-China Partnership Committee Inc | International, foreign affairs and national security | 501(c)(3) | 2014 | $1.1 million | 2024-12 | |
| Vemireddy Charitable Foundation | Religion-related | 501(c)(3) | 1997 | $167,951 | 2025-12 | |
| Winchester Alumni Association Inc | Education | 501(c)(3) | 2018 | $0 | $0 | 2023-06 |
| Winchester Boys Youth Lacrosse Inc | Recreation and sports | 501(c)(3) | 2025 | |||
| Winchester Firemans Relief Association | 501(c)(4) | 1969 | $0 | $0 | 2025-12 | |
| Winchester Friends of Art Inc | Arts, culture and humanities | 501(c)(3) | 2000 | $0 | $0 | 2024-12 |
| Winchester Friends of Music | Arts, culture and humanities | 501(c)(3) | 2021 | $0 | $0 | 2025-06 |
| Winchester Got Lunch | Human services | 501(c)(3) | 2013 | $0 | $0 | 2025-12 |
| Winchester High School Boys Volleyball Booster Club | Recreation and sports | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Winchester High School Wrestling Booster Club Inc | Recreation and sports | 501(c)(3) | 2024 | $0 | $0 | 2026-06 |
| Winchester Mount Vernon House | 501(c)(3) | 1950 | $46.1 million | 2025-12 | ||
| Winchester Parent Advisory Council | Education | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Winchester Police Assoc | 501(c)(5) | 1979 | $0 | $0 | 2024-12 | |
| Winchester Savings Bank Charitable Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2025 | $2.3 million | 2025-12 | |
| Winchester Tennis Association Inc | Recreation and sports | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Winchester Wolves Inc | Recreation and sports | 501(c)(3) | 2022 | $0 | $676 | 2023-12 |
| Winchester Youth Football Inc | Recreation and sports | 501(c)(3) | 2026 | |||
| Wise We Care Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2025 | |||
| Womens National Book Association Inc | 501(c)(3) | 1977 | $0 | $0 | 2026-05 | |
| Wright-Locke Land Trust Inc | Environment | 501(c)(3) | 2015 | $12.1 million | 2025-12 | |
| Write With Community | Arts, culture and humanities | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Zoroastrian Association of Greater Boston Area | Religion-related | 501(c)(3) | 2001 |
By cause in Winchester, MA
- Education 43
- Philanthropy, voluntarism and grantmaking foundations 23
- Recreation and sports 18
- Arts, culture and humanities 18
- Human services 14
- Environment 9
- Religion-related 8
- International, foreign affairs and national security 6
- Health care 6
- Medical research 6
- Public and societal benefit 5
- Community improvement and capacity building 4
- Youth development 4
- Civil rights, social action and advocacy 3
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.