Data / Nonprofits / Massachusetts / Watertown
Nonprofits in Watertown, MA: 202 registered with the IRS
202 nonprofits are registered with the IRS in Watertown, MA, 179 of them 501(c)(3) charities; the 99 that report revenue took in $311.5 million. The largest by revenue: Perkins School for the Blind ($89.8 million), Beaverbrook Step Inc ($30.1 million), Addgene Inc ($26.4 million). Most common causes: arts, culture and humanities (29), human services (21), education (20).
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Every organization, largest by revenue first
| Organization | Category | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| Perkins School for the Blind | Education | 501(c)(3) | 1961 | $89.8 million | $429.7 million | 2025-06 |
| Beaverbrook Step Inc | Human services | 501(c)(3) | 1974 | $30.1 million | $22 million | 2025-06 |
| Addgene Inc | Medical research | 501(c)(3) | 2005 | $26.4 million | $53.3 million | 2024-12 |
| Icatholic Media Inc | Religion-related | 501(c)(3) | 1946 | $20.1 million | $84.5 million | 2025-06 |
| United Cerebral Palsy Association of Metro Boston Inc | Diseases, disorders and medical disciplines | 501(c)(3) | 1979 | $18.6 million | $17.4 million | 2025-06 |
| Als Therapy Development Foundation Inc | Medical research | 501(c)(3) | 1999 | $16.1 million | $22.3 million | 2025-12 |
| Education Resource Strategies Inc | Education | 501(c)(3) | 2005 | $15.5 million | $17.1 million | 2025-12 |
| Institute for Health and Recovery Inc | Mental health and crisis intervention | 501(c)(3) | 1991 | $14.5 million | $7.5 million | 2025-06 |
| Jewish Community Day School Inc | Education | 501(c)(3) | 1996 | $12.5 million | $15.6 million | 2025-06 |
| Oakley Country Club | 501(c)(7) | 1938 | $10.4 million | $19.8 million | 2024-12 | |
| Association for Autism and Neurodiversity Inc | Diseases, disorders and medical disciplines | 501(c)(3) | 1998 | $7 million | $2.6 million | 2025-06 |
| Cooperative Fund of the Northeast Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1984 | $5.9 million | $61.3 million | 2025-12 |
| Atrium School Inc | 501(c)(3) | 1983 | $4.8 million | $8.5 million | 2025-06 | |
| Armenian Relief Society Inc | International, foreign affairs and national security | 501(c)(3) | 1949 | $3.6 million | $9.4 million | 2025-05 |
| Tekeyan Cultural Association Inc | Arts, culture and humanities | 501(c)(3) | 1970 | $2.4 million | $18 million | 2024-12 |
| Families First Parenting Programs Inc | Human services | 501(c)(3) | 1998 | $2.2 million | $1.9 million | 2025-06 |
| Armenian Library and Museum of America Inc | Arts, culture and humanities | 501(c)(3) | 1987 | $2.1 million | $18 million | 2025-06 |
| Armenian Cultural Association of America Inc | Arts, culture and humanities | 501(c)(3) | 1975 | $1.7 million | $6.9 million | 2024-12 |
| Family Cooperative Inc | Human services | 501(c)(3) | 2014 | $1.7 million | $1.3 million | 2025-07 |
| Armenian Relief Society of Eastern USA Inc | International, foreign affairs and national security | 501(c)(3) | 1979 | $1.5 million | $7.5 million | 2025-05 |
| Documentary Educational Resources Inc | Arts, culture and humanities | 501(c)(3) | 1973 | $1.5 million | $622,048 | 2025-04 |
| Dorothy and Charles Mosesian Center for the Arts | Arts, culture and humanities | 501(c)(3) | 1999 | $1.5 million | $3.5 million | 2025-08 |
| Watertown Housing Development Corporation | Housing and shelter | 501(c)(3) | 2025 | $1.4 million | $2.2 million | 2024-12 |
| Watertown Boys and Girls Club Inc | Youth development | 501(c)(3) | 1968 | $1.4 million | $7.1 million | 2025-09 |
| Network of Engaged International Do Nors Global Inc | Human services | 501(c)(3) | 2020 | $1.2 million | $675,514 | 2025-09 |
| Armenian Youth Federation Youth Organization of the Armenian Revol | 501(c)(3) | 2008 | $1.2 million | $1.8 million | 2024-11 | |
| A Shot for Life Incorporated | Human services | 501(c)(3) | 2014 | $1.2 million | $510,122 | 2024-12 |
| Vocational Advancement Center Inc | Employment | 501(c)(3) | 1982 | $1.2 million | $3.8 million | 2026-06 |
| Focus On Tanzanian Communities Inc | International, foreign affairs and national security | 501(c)(3) | 1997 | $1.1 million | $930,296 | 2025-12 |
| Valedictorian Project Inc | Human services | 501(c)(3) | 2021 | $1.1 million | $609,822 | 2025-06 |
| Primary Source Inc | 501(c)(3) | 1986 | $879,016 | $726,776 | 2025-12 | |
| Civic Action Project Inc | Education | 501(c)(3) | 2020 | $801,941 | $213,794 | 2024-12 |
| Parents Helping Parents - the Roundtable of Support Inc | Crime and legal-related | 501(c)(3) | 1980 | $707,094 | $1.1 million | 2025-06 |
| Watertown Cable Access Corporation | Arts, culture and humanities | 501(c)(3) | 2006 | $620,029 | $1.2 million | 2024-12 |
| Project Save Armenian Photograph Archives Inc | 501(c)(3) | 1986 | $581,047 | $415,157 | 2025-12 | |
| Massachusetts Alliance for Economic Development | 501(c)(6) | 1995 | $575,525 | $164,069 | 2025-06 | |
| Watertown Community Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2005 | $520,473 | $2.3 million | 2024-12 |
| Armenian Cultural & Educational Center Inc | Arts, culture and humanities | 501(c)(3) | 1975 | $471,714 | $1.1 million | 2025-12 |
| Massachusetts Teachers Association | 501(c)(5) | 1972 | $434,476 | $301,718 | 2025-06 | |
| Media Literacy Now | Arts, culture and humanities | 501(c)(3) | 2019 | $431,888 | $429,492 | 2024-12 |
| Domicilia Inc | Human services | 501(c)(3) | 1979 | $404,488 | $678,923 | 2025-09 |
| Heal Traumas International Inc | Mental health and crisis intervention | 501(c)(3) | 2022 | $352,147 | $62,948 | 2024-12 |
| Financial Executives International | 501(c)(6) | $311,564 | $245,699 | 2025-06 | ||
| Americans for Peace and Tolerance Inc | International, foreign affairs and national security | 501(c)(3) | 2009 | $299,951 | $176,373 | 2024-12 |
| Baikar Association Inc | 501(c)(4) | 1941 | $268,588 | $342,648 | 2025-08 | |
| Armenian Heritage Tribute and Genocide Memorial Foundation Inc | Arts, culture and humanities | 501(c)(3) | 2005 | $255,701 | $5 million | 2024-12 |
| Circus Up Inc | Recreation and sports | 501(c)(3) | 2018 | $244,457 | $167,060 | 2025-12 |
| Star Academy Boston Inc | Arts, culture and humanities | 501(c)(3) | 2023 | $228,000 | $3.5 million | 2025-12 |
| Armenian International Womens Association Inc | International, foreign affairs and national security | 501(c)(3) | 1992 | $222,258 | $1.5 million | 2024-12 |
| Russell Cooperative Preschool Incorporated | Education | 501(c)(3) | 1976 | $219,439 | $534,094 | 2025-06 |
| Cocoanut Grove Memorial Committee Inc | Arts, culture and humanities | 501(c)(3) | 2015 | $213,938 | $147,297 | 2025-12 |
| Homenetmen Eastern Region Inc | Community improvement and capacity building | 501(c)(3) | 1987 | $201,705 | $183,705 | 2024-12 |
| Hamazkayin Armenian Educational & Cultural Society Inc | Arts, culture and humanities | 501(c)(3) | 2012 | $195,851 | $663,521 | 2025-04 |
| Alliance for Voice Airway and Swallowing Education | Diseases, disorders and medical disciplines | 501(c)(3) | 2024 | $191,207 | $162,857 | 2026-06 |
| Iranian Association of Boston Inc | Arts, culture and humanities | 501(c)(3) | 1989 | $181,815 | $852,317 | 2025-03 |
| Watertown Youth Hockey League | Recreation and sports | 501(c)(3) | 1991 | $150,737 | $139,401 | 2025-06 |
| National Network of Child Psychiatry Access Programs Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2016 | $133,915 | $112,368 | 2025-12 |
| Unstoppable | Mental health and crisis intervention | 501(c)(3) | 2022 | $132,795 | $5,312 | 2025-12 |
| Community Consulting Teams Inc | Community improvement and capacity building | 501(c)(3) | 1995 | $128,330 | $217,387 | 2025-06 |
| International Association of Fire Fighters | 501(c)(5) | 1966 | $113,579 | $228,143 | 2025-08 | |
| Little League Baseball Inc | 501(c)(3) | 1967 | $111,962 | $59,003 | 2025-09 | |
| Lieutenant Paul J Sullivan Charitable Trust | 501(c)(3) | 1971 | $98,728 | $546,068 | 2024-12 | |
| Ancient Order of Hibernians in America | 501(c)(8) | 1945 | $86,845 | $488,517 | 2025-06 | |
| Federation Flam USA | Community improvement and capacity building | 501(c)(6) | 2018 | $83,366 | $174,887 | 2025-12 |
| Marine Corps League | 501(c)(4) | 1946 | $66,693 | $165,580 | 2025-06 | |
| Watertown Police Employees Association | 501(c)(5) | 1971 | $63,824 | $1.1 million | 2024-12 | |
| Impact Imagining Together Platform Arts Culture Conflict Transfrmtn I | Arts, culture and humanities | 501(c)(3) | 2013 | $58,294 | $29,481 | 2025-06 |
| Our Girl Linda | Public and societal benefit | 501(c)(3) | 2019 | $55,028 | $72,274 | 2025-12 |
| Canadian American Club of Massachusetts Incorporated | 501(c)(7) | 1986 | $50,050 | $33,669 | 2025-05 | |
| Yerazart Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2005 | $50,004 | $48,470 | 2024-12 |
| Operation American Soldier Inc | International, foreign affairs and national security | 501(c)(3) | 2013 | $49,934 | $95,234 | 2025-12 |
| Homenetmen Inc | Recreation and sports | 501(c)(3) | 1997 | $43,136 | $126,177 | 2024-10 |
| Bay State Council of the Blind | Diseases, disorders and medical disciplines | 501(c)(3) | 1997 | $41,287 | $206,745 | 2025-12 |
| Interhelp Inc | 501(c)(3) | 2015 | $40,620 | $15,958 | 2025-06 | |
| National Alliance On Mental Illness Cambridge Middlesex Inc | 501(c)(3) | 1982 | $38,762 | $89,704 | 2025-12 | |
| Sons of Italy in America | 501(c)(8) | 1941 | $37,832 | $155,687 | 2024-12 | |
| Harvard Griffin Gsas Chinese Students and Scholars Association | Arts, culture and humanities | 501(c)(3) | 2020 | $37,653 | $386,421 | 2025-12 |
| Rotary International | Community improvement and capacity building | 501(c)(4) | 1942 | $35,788 | $196,070 | 2025-06 |
| Dinosaur Annex Music Ensemble Inc | Arts, culture and humanities | 501(c)(3) | 1990 | $31,533 | $14,212 | 2025-06 |
| Hawaiian Tournament Inc | 501(c)(3) | 2023 | $30,890 | $19,214 | 2025-12 | |
| John Milton Society for the Blind | Diseases, disorders and medical disciplines | 501(c)(3) | 1941 | $25,306 | $878,761 | 2025-06 |
| Homenetmen Inc | Human services | 501(c)(3) | 2020 | $24,250 | $179,694 | 2024-12 |
| World in Watertown Inc | Civil rights, social action and advocacy | 501(c)(3) | 2019 | $23,594 | $18,367 | 2025-12 |
| Sonny Whooley Foundation Inc | Human services | 501(c)(3) | 2005 | $17,562 | $44,586 | 2024-12 |
| Trees for Watertown Inc | 501(c)(3) | 1986 | $16,986 | $33,801 | 2025-06 | |
| Friends of Project Literacy Incorporated | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1995 | $13,885 | $29,615 | 2025-06 |
| Massachusetts Economic Development Foundation Inc | Community improvement and capacity building | 501(c)(3) | 1999 | $13,809 | $6,192 | 2025-06 |
| Watertown Community Gardens | Food, agriculture and nutrition | 501(c)(3) | 2013 | $12,865 | $29,048 | 2025-12 |
| Friends of the Watertown Council On Aging Inc | Human services | 501(c)(3) | 2017 | $11,812 | $74,500 | 2024-12 |
| Chaisson Family Foundation | Mental health and crisis intervention | 501(c)(3) | 2022 | $11,085 | $15,111 | 2025-10 |
| Fraternal Order of Eagles | Mutual and membership benefit | 501(c)(8) | 1991 | $9,837 | $187,625 | 2025-05 |
| Colab High School Stem Career Collaboration | Youth development | 501(c)(3) | 2023 | $5,995 | $182,679 | 2025-12 |
| Brazilian Community Help Inc | Human services | 501(c)(3) | 2024 | $4,169 | $5,640 | 2025-12 |
| Planet Boston Inc | Human services | 501(c)(3) | 2022 | $3,795 | $10,174 | 2026-01 |
| Boston Blind Sailing Inc | Recreation and sports | 501(c)(3) | 2019 | $2,524 | $3,129 | 2025-12 |
| Missionary Ministry Christ Lives in Me Ministerio Misionero Cristo V | Religion-related | 501(c)(3) | 2023 | $2,483 | $1 | 2025-12 |
| Watertown Cooperative Nursery School Inc | Education | 501(c)(3) | 1963 | $26 | $28,896 | 2025-08 |
| Amaras Art Alliance Inc | Arts, culture and humanities | 501(c)(3) | 2001 | $0 | $0 | 2025-12 |
| Anca Eastern Region Endowment Fund | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2010 | $75,435 | 2024-12 | |
| Animals Are Sentient Beings Inc | Animal-related | 501(c)(3) | 2009 | $0 | $0 | 2026-06 |
| Antioch Community Church of Brighton | Religion-related | 501(c)(3) | 1999 | |||
| Arab Astronomical Society Inc | Science and technology | 501(c)(3) | 2025 | $0 | $0 | 2025-01 |
| Armenian Review Inc | 501(c)(3) | 1984 | $7,531 | 2025-12 | ||
| Armenian Youth Foundation Inc | Youth development | 501(c)(3) | 2019 | $904,592 | 2024-12 | |
| Arogyapulse Charitable Foundation | International, foreign affairs and national security | 501(c)(3) | 2025 | |||
| Badalian Family Foundation | Arts, culture and humanities | 501(c)(3) | 2026 | |||
| Beisho Corporation | Education | 501(c)(3) | 2007 | $18,931 | 2025-12 | |
| Believers Baptist Church Inc | Religion-related | 501(c)(3) | 2014 | |||
| Boston Facilitators Roundtable | Community improvement and capacity building | 501(c)(6) | 2012 | $0 | $0 | 2025-12 |
| Burnham-Manning Post 1105 VFW of Us Inc | Public and societal benefit | 501(c)(19) | 2026 | |||
| C R A S H-B Sprints Inc | Recreation and sports | 501(c)(3) | 1987 | $0 | $0 | 2025-06 |
| Centro Internacional de Alabanza Boston | Religion-related | 501(c)(3) | 2004 | |||
| Chabad Watertown Inc | Religion-related | 501(c)(3) | 2024 | |||
| Chinese American Association of Wat Ertown Inc | Arts, culture and humanities | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Coalition for Better Care Inc | Human services | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Cochlear Labioworld Corp | Human services | 501(c)(3) | 2019 | $0 | $0 | 2026-02 |
| Country Dance & Song Soiciety Inc | Arts, culture and humanities | 501(c)(3) | 1993 | $0 | $0 | 2025-12 |
| Creativity Foundation A Maryland Nonprofit Corporation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2002 | $1.4 million | 2025-12 | |
| Cultivarium Inc | Science and technology | 501(c)(3) | 2026 | |||
| Cunniff School Parent Teacher Organization | Education | 501(c)(3) | 2001 | $0 | $0 | 2025-06 |
| Dagmit Debrelibanos St Teklehaimano T Ethiopian Orthodox Tewahido | 501(c)(3) | 2021 | ||||
| David J Defilippo & Lisa M Shapiro Charitable Trust 11302009 | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2010 | $41,362 | 2025-12 | |
| Encouragement Program Inc | Human services | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Face It Inc | Youth development | 501(c)(3) | 2024 | $0 | $0 | 2024-12 |
| Fifty One Kondazian Inc | Community improvement and capacity building | 501(c)(2) | 2010 | $0 | $0 | 2025-08 |
| Force and Motion Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2011 | $18,047 | 2024-12 | |
| Fowler Fellowship | Education | 501(c)(3) | 2025 | $210 | 2024-12 | |
| Friends of Watertown Music Inc | Education | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| GRRL Haus Cinema Inc | Arts, culture and humanities | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Gella Azurin Foundation Inc | Human services | 501(c)(3) | 2020 | $0 | $0 | 2024-12 |
| Global Happiness Foundation Inc | Health care | 501(c)(3) | 2026 | |||
| Greater Boston Church of Spiritualism | Religion-related | 501(c)(3) | 2014 | |||
| Greater Boston Council On Alcoholism Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2024 | $52,616 | 2024-12 | |
| Hay Cultural Alliance | Arts, culture and humanities | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Helping Families and Children Inc | Human services | 501(c)(3) | 2015 | $0 | $0 | 2024-12 |
| Historical Society of Watertown | 501(c)(3) | 1954 | $0 | $0 | 2025-04 | |
| Hosmer School Pto | Education | 501(c)(3) | 2014 | $0 | $0 | 2026-06 |
| Houn-An Dharma Cloud Hermitage Inc | Religion-related | 501(c)(3) | 2003 | |||
| Igreia Evangelica A Deus de Watertown | 501(c)(3) | 1964 | ||||
| Islamic Society for Spiritual Cultivation | Religion-related | 501(c)(3) | 2019 | $691 | 2025-08 | |
| J R Lowell School Parent Teacher Organization Inc | Education | 501(c)(3) | 2016 | $0 | $0 | 2025-06 |
| Jurassic Gymnastics Boston Inc | Recreation and sports | 501(c)(7) | 2023 | $0 | $0 | 2025-08 |
| Kevin Kitrell Ross Force for Good Foundation Inc | Human services | 501(c)(3) | 2024 | |||
| Kings for Kids Inc | Recreation and sports | 501(c)(3) | 2026 | |||
| Knights of Columbus | 501(c)(8) | 1940 | $0 | $0 | 2025-12 | |
| Korean American Biomedical Industry Council | Education | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Marlene F Johnson Memorial Fund for Scholarly Research On Christian | Education | 501(c)(3) | 1999 | $1 million | 2026-04 | |
| Mentorarc Inc | Youth development | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Ministerio Internacional Fuente de Vida Deseable | Religion-related | 501(c)(3) | 2020 | |||
| Monday Music Education Institute Co Rporation | Social science | 501(c)(3) | 2025 | |||
| Neurodynamics Foundation Inc | Health care | 501(c)(3) | 2026 | |||
| Northeast Labor-Management Center Inc | Education | 501(c)(3) | 2025 | $0 | $27,707 | 2025-06 |
| Nu 2 U Apparel Inc | Human services | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Open Door Ensembles of Boston | Arts, culture and humanities | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| Operation250 | Education | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Outbio | Civil rights, social action and advocacy | 501(c)(3) | 2020 | $0 | $0 | 2024-12 |
| PTG & DTD Alumni Association | Recreation and sports | 501(c)(7) | 2013 | $0 | $0 | 2024-12 |
| Phan Thanh Gian Culture & Education Foundation Inc | Arts, culture and humanities | 501(c)(3) | 2015 | $0 | $0 | 2024-12 |
| Pivot Foundation Inc | Crime and legal-related | 501(c)(3) | 2025 | |||
| Pursuers Worship Network International Inc | Religion-related | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Raider Gridiron Club Inc | Recreation and sports | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Redeemer Fellowship Church | 501(c)(3) | 1972 | ||||
| Rim Power Inc | Health care | 501(c)(3) | 2016 | $0 | $0 | 2024-06 |
| Sadoway Labs Foundation Inc | Environment | 501(c)(3) | 2022 | $2.6 million | 2025-12 | |
| Salute Ai Corporation | Public and societal benefit | 501(c)(3) | 2025 | |||
| Savoyards of Boston | Arts, culture and humanities | 501(c)(3) | 2019 | $0 | $0 | 2024-08 |
| Scientists Against Inhumane Weapons Inc | Science and technology | 501(c)(4) | 2022 | $0 | $0 | 2025-12 |
| Sens Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2011 | $1.3 million | 2024-12 | |
| Society of Hispanic Professional En Gineers-Boston Chapter | Science and technology | 501(c)(3) | 2026 | |||
| Society of Saint Vincent de Paul in the Archdiocese of Boston | Religion-related | 501(c)(3) | 2013 | $0 | $0 | 2025-09 |
| Sofias Angels Foundation Inc | Human services | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Sourcework Ensemble | Arts, culture and humanities | 501(c)(3) | 2019 | $0 | $0 | 2025-08 |
| Spectacle Collective | Arts, culture and humanities | 501(c)(3) | 2023 | $0 | $0 | 2025-08 |
| Spiritual Assembly of the Bahais of Watertown | 501(c)(3) | 1995 | ||||
| St James Armenian Church | 501(c)(3) | 1949 | ||||
| St Parascheva Romanian Orthodox Church | Religion-related | 501(c)(3) | 1997 | |||
| St Patricks Parish | 501(c)(3) | 1946 | 2012-06 | |||
| St Stephens Armenian Apostolic Church of Greater Boston Inc | Religion-related | 501(c)(3) | 2003 | |||
| Survival Education Fund Inc | 501(c)(3) | 1979 | $0 | $0 | 2024-12 | |
| Teevial | Education | 501(c)(3) | 2025 | |||
| The Agape Foundation | 501(c)(3) | 1987 | $2.4 million | 2025-09 | ||
| The Cooperative Charitable Trust | 501(c)(3) | 1986 | $1.1 million | 2025-08 | ||
| The Sight Equity Initiative | Diseases, disorders and medical disciplines | 501(c)(3) | 2026 | |||
| The@henrietta & David Whitcomb Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2001 | $445,422 | 2024-12 | |
| The@marshall Home Fund Inc | Human services | 501(c)(3) | 2005 | $1.1 million | 2024-12 | |
| Toastmasters International | 501(c)(3) | 1945 | $0 | $0 | 2025-12 | |
| Umberfield Zack Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2004 | $180,509 | 2025-12 | |
| Watertown Autism Family Support Group | 501(c)(3) | 2015 | $0 | $0 | 2024-12 | |
| Watertown Business Coalition | Community improvement and capacity building | 501(c)(6) | 2022 | $0 | $0 | 2025-12 |
| Watertown Citizens Pje Education Fund | Civil rights, social action and advocacy | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Watertown Citizens for Peace Justice and the Environment Inc | 501(c)(4) | 1995 | $0 | $0 | 2024-12 | |
| Watertown Evangelical Church | Religion-related | 501(c)(3) | 2013 | |||
| Watertown Free Public Library Building Fund Inc | Education | 501(c)(3) | 2003 | $0 | $0 | 2024-06 |
| Watertown High School Ptso | Education | 501(c)(3) | 2017 | $0 | $0 | 2026-06 |
| Watertown Middle School Pto | Education | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Watertown Police Foundation Inc | Public safety, disaster preparedness and relief | 501(c)(3) | 2013 | $0 | $0 | 2026-03 |
| Watertown for All Ages Inc | Community improvement and capacity building | 501(c)(3) | 2018 | $0 | $0 | 2024-12 |
| Won-Buddhisim of Boston | Religion-related | 501(c)(3) | 2002 | |||
| You Got Flowers Inc | Health care | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Young Investigator Meeting Inc | Science and technology | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Friends of Armenian Culture Soc Inc 58 Rutledge RD | Arts, culture and humanities | 501(c)(3) | 1963 | $-4,956 | $88,649 | 2025-12 |
| Maximumgood Inc | Arts, culture and humanities | 501(c)(3) | 2004 | $-34,492 | $2.3 million | 2024-05 |
By cause in Watertown, MA
- Arts, culture and humanities 29
- Human services 21
- Education 20
- Religion-related 16
- Philanthropy, voluntarism and grantmaking foundations 13
- Recreation and sports 9
- Community improvement and capacity building 9
- International, foreign affairs and national security 7
- Diseases, disorders and medical disciplines 6
- Youth development 5
- Science and technology 5
- Mental health and crisis intervention 4
- Health care 4
- Public and societal benefit 3
- 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.