Data / Nonprofits / Connecticut / Darien
Nonprofits in Darien, CT: 222 registered with the IRS
222 nonprofits are registered with the IRS in Darien, CT, 191 of them 501(c)(3) charities; the 79 that report revenue took in $215.5 million. The largest by revenue: National Charitable Endowment Inc ($55.2 million), Woodway Country Club Incorporated ($21.7 million), Wee Burn Country Club Inc ($21.6 million). Most common causes: philanthropy, voluntarism and grantmaking foundations (42), human services (19), recreation and sports (18).
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Every organization, largest by revenue first
| Organization | Category | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| National Charitable Endowment Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2018 | $55.2 million | $175.9 million | 2024-12 |
| Woodway Country Club Incorporated | 501(c)(7) | 1949 | $21.7 million | $37.1 million | 2025-10 | |
| Wee Burn Country Club Inc | 501(c)(7) | 1946 | $21.6 million | $28.7 million | 2024-12 | |
| Country Club of Darien | 501(c)(7) | 1987 | $17.9 million | $39.4 million | 2025-10 | |
| Person To Person Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1995 | $17.5 million | $8.4 million | 2025-06 |
| Darien Community Young Mens Christian Association Inc | Human services | 501(c)(3) | 1970 | $14 million | $25.8 million | 2025-12 |
| American Friends of the Episcopal Diocese of Jerusalem | Human services | 501(c)(3) | 1964 | $6.5 million | $2.8 million | 2025-12 |
| Darien Library Inc | Education | 501(c)(3) | 1952 | $6.2 million | $29.5 million | 2025-06 |
| Tokeneke Club Incorporated | 501(c)(7) | 1922 | $6 million | $19.8 million | 2025-12 | |
| Friends of Animals Inc | Animal-related | 501(c)(3) | 1959 | $5.4 million | $17.1 million | 2026-04 |
| The Curetivity Foundation | Medical research | 501(c)(3) | 2007 | $4.4 million | $1 million | 2024-12 |
| Darien Youth Hockey Assoc Inc | Recreation and sports | 501(c)(3) | 1974 | $3.2 million | $2.8 million | 2025-02 |
| Noroton Yacht Club Inc | 501(c)(7) | 1935 | $3.1 million | $8.7 million | 2025-10 | |
| Land Trust of Darien Inc | Environment | 501(c)(3) | 1964 | $2.8 million | $38 million | 2025-06 |
| Ox Ridge Riding & Racquet Club Inc | 501(c)(7) | 1974 | $2.1 million | $11 million | 2024-12 | |
| Middlesex Club Inc | 501(c)(7) | 1977 | $1.8 million | $1.6 million | 2025-09 | |
| Christian Mission To Gaza | Human services | 501(c)(3) | 2000 | $1.7 million | $2 million | 2025-12 |
| Darien Community Association Inc | Community improvement and capacity building | 501(c)(3) | 1967 | $1.7 million | $3.2 million | 2025-05 |
| Darien Ems Post 53 Inc | Health care | 501(c)(3) | 2002 | $1.6 million | $12.6 million | 2025-12 |
| The Community Fund of Darien | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1968 | $1.3 million | $3.3 million | 2025-06 |
| Darien Nature Center Inc | Environment | 501(c)(3) | 1981 | $1.2 million | $2.8 million | 2024-12 |
| Darien Youth Soccer Association Inc | Youth development | 501(c)(3) | 1996 | $1.2 million | $952,079 | 2025-12 |
| Methodist Fam Center Preschool Inc | Human services | 501(c)(3) | 2002 | $1.1 million | $892,525 | 2025-08 |
| Darien Arts Center Inc | Arts, culture and humanities | 501(c)(3) | 1976 | $833,872 | $1.4 million | 2025-07 |
| Spring Grove Cemetery Association | 501(c)(13) | 1944 | $818,680 | $7.1 million | 2024-12 | |
| Council of Darien School Parents | 501(c)(3) | 1998 | $809,545 | $1.1 million | 2025-06 | |
| Simplifyct Inc | Public and societal benefit | 501(c)(3) | 2020 | $804,300 | $498,171 | 2025-12 |
| Friends of Post 53 Inc | 501(c)(3) | 1986 | $719,247 | $11.2 million | 2025-12 | |
| Tiny Miracles Foundation | Health care | 501(c)(3) | 2004 | $716,940 | $1.1 million | 2025-12 |
| The Darien Foundation Inc | Education | 501(c)(3) | 1999 | $681,735 | $3.5 million | 2025-06 |
| Education and Hope | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1999 | $676,876 | $880,317 | 2024-12 |
| Mather Homestead Foundation Inc | Arts, culture and humanities | 501(c)(3) | 2016 | $647,771 | $5.4 million | 2025-12 |
| Little League Baseball Inc | 501(c)(3) | 1967 | $593,116 | $575,773 | 2025-09 | |
| Ce12 Foundation | Community improvement and capacity building | 501(c)(3) | 2013 | $511,438 | $726,472 | 2025-12 |
| Friends of the Garvan Institute of Medical Research | Medical research | 501(c)(3) | 2007 | $501,333 | $5,702 | 2024-12 |
| Noroton Heights Depot Inc | Youth development | 501(c)(3) | 1990 | $462,571 | $1.1 million | 2025-06 |
| Darien Youth Lacrosse Inc | Recreation and sports | 501(c)(3) | 2004 | $454,797 | $309,737 | 2025-08 |
| Andrew Shaw Memorial Trust | Youth development | 501(c)(3) | 1997 | $452,369 | $3.2 million | 2025-12 |
| Darien Police Association | 501(c)(5) | 1977 | $414,063 | $337,858 | 2024-12 | |
| YWCA of Darien Norwalk Inc | Human services | 501(c)(3) | 1976 | $410,083 | $761,466 | 2025-06 |
| Northeast Wisdom Inc | Religion-related | 501(c)(3) | 2014 | $358,731 | $533,049 | 2024-12 |
| Darien Fire Dept Inc | 501(c)(4) | 1948 | $349,485 | $3.1 million | 2024-12 | |
| At Home in Darien Inc | Human services | 501(c)(3) | 2010 | $318,269 | $542,216 | 2025-12 |
| Piedmont Associates Inc | 501(c)(7) | 1990 | $263,307 | $433,453 | 2024-12 | |
| Abc in Darien Inc | 501(c)(3) | 1981 | $260,032 | $2.2 million | 2025-08 | |
| Darien Junior Football League Inc | Recreation and sports | 501(c)(3) | 2003 | $247,584 | $220,507 | 2024-12 |
| Darien Historical Society Inc | Arts, culture and humanities | 501(c)(3) | 1956 | $226,386 | $2.2 million | 2025-06 |
| CT Premier Water Polo Club | Youth development | 501(c)(3) | 2021 | $224,904 | $22,841 | 2025-12 |
| The Noroton Fire Department Incorporated | 501(c)(3) | 1986 | $214,794 | $2.2 million | 2025-06 | |
| Darien Junior Field Hockey Inc | Recreation and sports | 501(c)(3) | 2020 | $212,570 | $168,841 | 2024-12 |
| Darien Athletic Foundation Inc | Recreation and sports | 501(c)(3) | 2013 | $209,184 | $1 million | 2024-12 |
| Darien Babe Ruth League | Recreation and sports | 501(c)(3) | 2013 | $203,786 | $94,069 | 2024-12 |
| Darien Police Assoc Inc Voluntary Employees Beneficiary Assoc Trust | Mutual and membership benefit | 501(c)(9) | 2013 | $200,077 | $1.9 million | 2024-12 |
| Wiks-Usa Inc | International, foreign affairs and national security | 501(c)(3) | 2009 | $193,147 | $79,910 | 2024-12 |
| Stronger Than You Think Inc | Human services | 501(c)(3) | 2025 | $170,664 | $147,524 | 2024-12 |
| Masonic Club of the Town of Darien Inc | Human services | 501(c)(4) | 2011 | $162,330 | $1.3 million | 2025-12 |
| HT40 Foundation Inc | Youth development | 501(c)(3) | 2023 | $159,601 | $347,437 | 2025-12 |
| Hannah Storm Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2008 | $159,512 | $365,460 | 2024-12 |
| Noroton Heights Fire Department Incorporated | Health care | 501(c)(3) | 1996 | $155,102 | $417,904 | 2024-12 |
| Remote Ecologist Inc | Science and technology | 501(c)(3) | 2022 | $149,536 | $42,166 | 2024-12 |
| Blue Wave Pride Club | Education | 501(c)(3) | 2007 | $148,469 | $20,912 | 2025-06 |
| Darien Chamber of Commerce Inc | 501(c)(6) | 1982 | $147,787 | $297,273 | 2025-12 | |
| Pinnacle Ski & Sport Club Inc | 501(c)(7) | 1993 | $114,148 | $35,027 | 2024-12 | |
| Wave Strong Foundation Inc | Mental health and crisis intervention | 501(c)(3) | 2024 | $114,022 | $150,503 | 2025-12 |
| Robert C Leverich Scholarship Fund | 501(c)(3) | 1979 | $106,709 | $192,858 | 2024-12 | |
| Global Dignity Inc | International, foreign affairs and national security | 501(c)(3) | 2018 | $105,112 | $8,219 | 2025-12 |
| Darien Boat Club Inc | 501(c)(7) | 1987 | $100,494 | $389,520 | 2025-10 | |
| Darien Book Aid Plan Inc | 501(c)(3) | 1953 | $100,402 | $412,850 | 2026-04 | |
| Darien Board of Realtors Inc | 501(c)(6) | 1956 | $78,198 | $65,569 | 2025-12 | |
| Cottage in Darien Inc | Human services | 501(c)(3) | 2008 | $75,665 | $1.4 million | 2024-12 |
| Darien Junior Sailing Program LLC | Recreation and sports | 501(c)(3) | 2022 | $73,070 | $19,369 | 2025-12 |
| Connecticut Education Association | 501(c)(5) | 1971 | $71,890 | $154,602 | 2025-06 | |
| Wee Burn Caddy Scholarship Fund | 501(c)(3) | 1980 | $68,680 | $180,192 | 2024-12 | |
| Schubert Club of Fairfield County Inc | 501(c)(3) | 1924 | $68,631 | $341,618 | 2026-06 | |
| Sound Cyclists Bicycle Club Inc | Recreation and sports | 501(c)(7) | 2025 | $50,034 | $109,427 | 2025-12 |
| Great Island Preservation Inc | Environment | 501(c)(3) | 2025 | $36,148 | $234 | 2025-12 |
| Council of Darien School Parents | Education | 501(c)(3) | 1997 | $11,713 | $3,337 | 2025-06 |
| Harbor Lights Foundation Inc | Health care | 501(c)(3) | 2020 | $11,487 | $358,741 | 2023-06 |
| American Immobiliare Inc | Education | 501(c)(3) | 2016 | $11,184 | $62,240 | 2024-12 |
| 522 Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2019 | $18 million | 2024-12 | |
| Acabella | Arts, culture and humanities | 501(c)(3) | 2006 | $0 | $0 | 2025-06 |
| Amita Lien Tri Association | 501(c)(3) | 2021 | $0 | $0 | 2025-12 | |
| Ancient Free & Accepted Masons of Connecticut | 501(c)(10) | 1943 | $0 | $0 | 2025-11 | |
| Andre and Elaine Suan Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2000 | $27,968 | 2025-12 | |
| Barbara and Gil Kemp Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2006 | $738,331 | 2024-12 | |
| Bassler Family Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2009 | $566,192 | 2024-12 | |
| Bello Agnello Celebration Center | Religion-related | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Big Dreams Childrens Foundation | International, foreign affairs and national security | 501(c)(3) | 2011 | $0 | $0 | 2025-12 |
| Bitter End Foundation Inc | International, foreign affairs and national security | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Boame Helping Hands Foundation Inc | Community improvement and capacity building | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Brightwater Fund | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2010 | $2.3 million | 2025-06 | |
| Bruce and Janet Sargent Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2000 | $187,840 | 2025-06 | |
| Carey Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2005 | $40.8 million | 2025-06 | |
| Charles O Blaisdell Scholarshipfund | Education | 501(c)(3) | 2013 | $0 | $0 | 2024-12 |
| Chi Omega Fraternity | 501(c)(7) | 1940 | $0 | $0 | 2026-04 | |
| Chuza Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1998 | $210,372 | 2024-12 | |
| Click It for Cassie Inc | Public safety, disaster preparedness and relief | 501(c)(3) | 2011 | $0 | $0 | 2023-12 |
| Cobblefield Fund Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2009 | $63,393 | 2024-12 | |
| Committee for Humane Legislation Inc | 501(c)(4) | 1967 | $0 | $0 | 2025-04 | |
| Council of Darien School Parents | 501(c)(3) | 1997 | ||||
| Council of Darien School Parents | 501(c)(3) | 1998 | ||||
| Council of Darien School Parents | Education | 501(c)(3) | 1998 | |||
| Council of Darien School Parents | 501(c)(3) | 1998 | 2002-06 | |||
| Council of Darien School Parents | Education | 501(c)(3) | 1997 | |||
| Council of Darien School Parents | Education | 501(c)(3) | 1998 | |||
| Council of Darien School Parents | 501(c)(3) | 1997 | ||||
| Crosslit Inc | Religion-related | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Daniel P and Grace I Tully Charitable Trust | 501(c)(3) | 1986 | $3.7 million | 2025-11 | ||
| Darien Chamber Charitable Foundation | Human services | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Darien Environmental Group Inc | Community improvement and capacity building | 501(c)(3) | 1991 | $0 | $0 | 2025-06 |
| Darien Field Hockey Association Inc | Recreation and sports | 501(c)(3) | 2015 | $0 | $29,277 | 2024-12 |
| Darien Music for Youth Inc | Arts, culture and humanities | 501(c)(3) | 2025 | $0 | $0 | 2022-06 |
| Darien Pride Inc | Civil rights, social action and advocacy | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Darien Rotary Foundation Inc | 501(c)(3) | 1970 | $0 | $0 | 2025-12 | |
| Dave Hokin Foundation | 501(c)(3) | 1953 | $560,282 | 2025-10 | ||
| David & Tricia Rogers Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1995 | $19.6 million | 2025-02 | |
| Delafield Island Social Group Inc | Recreation and sports | 501(c)(7) | 2009 | $0 | $0 | 2025-06 |
| Edward E Stone Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2007 | $3.5 million | 2025-12 | |
| Fairfield Visiting Nurse Service for Christian Scientists Inc | Health care | 501(c)(3) | 1961 | |||
| Federated Garden Clubs of Connecticut Inc | 501(c)(3) | 1967 | $0 | $0 | 2025-06 | |
| Florian Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2026 | |||
| Foundation of Light Inc | Health care | 501(c)(3) | 2010 | $0 | $0 | 2025-12 |
| Fracture Service Fund Inc | 501(c)(3) | 1993 | $797,996 | 2025-06 | ||
| Fredericks Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1999 | $1.3 million | 2025-12 | |
| Friends of Sellecks Woods Inc | Environment | 501(c)(3) | 1991 | $0 | $0 | 2025-12 |
| Friends of Woodland Park Inc | 501(c)(3) | 1981 | $0 | $0 | 2025-12 | |
| Friends of the Episcopal Church in Cuba | Religion-related | 501(c)(3) | 2022 | |||
| Gerard H Davis and Roberta Davis Charitable Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2021 | $2.8 million | 2024-12 | |
| Gerry and Franca Mulligan Foundation Inc | Arts, culture and humanities | 501(c)(3) | 2001 | $142,975 | 2024-12 | |
| Good Neighbor Presbyterian Church | 501(c)(3) | 1993 | ||||
| Goodnow Fund | 501(c)(3) | 1994 | $21.1 million | 2024-12 | ||
| Greenshoots Foundation Inc | Health care | 501(c)(3) | 2023 | $5,486 | 2024-12 | |
| Hastings Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2007 | $4.1 million | 2025-12 | |
| Heart To Art Inc | Community improvement and capacity building | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Henry L Farmer V Charitable Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2024 | $25,099 | 2025-12 | |
| High Pines Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1999 | $723,335 | 2025-12 | |
| Imus Ranch Inc | Recreation and sports | 501(c)(3) | 1998 | $9.4 million | 2025-12 | |
| Inclusive Industries Inc | Employment | 501(c)(3) | 2025 | $0 | $1 | 2024-12 |
| Intergroup Association of Fairfield County Inc | Human services | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| International Association of Lions Clubs | 501(c)(4) | 1940 | $0 | $0 | 2025-06 | |
| Janet A Carrington Foundation 06241998 | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2000 | $8.4 million | 2025-12 | |
| Jerrold and Sally Fine Foundation Inc | 501(c)(3) | 1987 | $1.3 million | 2025-12 | ||
| Joseph John Devine Foundation | Education | 501(c)(3) | 2009 | $477 | 2024-12 | |
| Joseph and Amy Gold Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2025 | $300,796 | 2025-12 | |
| Jr Schoen Memorial Foundation Inc | Diseases, disorders and medical disciplines | 501(c)(3) | 2009 | $0 | $0 | 2025-12 |
| Kala Utsav Inc | Arts, culture and humanities | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Kestrel Trust | Medical research | 501(c)(3) | 2025 | $1.4 million | 2025-12 | |
| Knights of Columbus | 501(c)(8) | 1940 | $0 | $0 | 2025-12 | |
| Krantz 501 C 3 Trust | 501(c)(3) | 1987 | $652,865 | 2024-12 | ||
| La Leche League International Inc | 501(c)(3) | 1979 | $0 | $0 | 2026-03 | |
| League of Women Voters of Connecticut Inc | 501(c)(4) | 1950 | $0 | $0 | 2025-06 | |
| Leap | Education | 501(c)(3) | 2014 | $0 | $0 | 2024-12 |
| Legacy Rising Inc | Youth development | 501(c)(3) | 2025 | |||
| Level the Field Inc | Recreation and sports | 501(c)(3) | 2018 | $0 | $0 | 2023-12 |
| Little League Baseball Inc | 501(c)(3) | 1967 | $0 | $0 | 2025-09 | |
| Little League Baseball Inc | 501(c)(3) | 1967 | $0 | $0 | 2025-09 | |
| Louis F Bantle and Virginia C Bantle Charitable Foundation Inc | 501(c)(3) | 1992 | $4.4 million | 2025-12 | ||
| Mad Dogs Cricket Club Inc | 501(c)(3) | 2014 | $0 | $0 | 2025-12 | |
| Maren Foundation | Medical research | 501(c)(3) | 2016 | $77,165 | 2024-12 | |
| Mark W Blackman and Deborah H Blackman Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2018 | $2.1 million | 2025-12 | |
| McIntyre Family Foundation Inc | Arts, culture and humanities | 501(c)(3) | 2022 | $580,504 | 2025-12 | |
| McLaughlin Fam Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2001 | $1.2 million | 2025-12 | |
| Meredith and Whitney George Family Foundation Inc | Human services | 501(c)(3) | 2005 | $56.3 million | 2025-10 | |
| Metzger Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2003 | $1 | 2025-12 | |
| Meyer Family Charitable Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2014 | $15.3 million | 2025-12 | |
| Middlesex Genealogical Society | Arts, culture and humanities | 501(c)(3) | 2014 | $0 | $0 | 2024-12 |
| Mor Reading Inc | Education | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Myles M Beringer Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2001 | $0 | $0 | 2025-12 |
| National Society of the Daughters of the American Revolution | 501(c)(3) | 1968 | $0 | $0 | 2025-12 | |
| New Beginnings Community Church Inc | 501(c)(3) | 1994 | ||||
| New Canaan Society Inc | Religion-related | 501(c)(3) | 2009 | $0 | $0 | 2025-12 |
| New England Youth Symphony Corp | Arts, culture and humanities | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Noroton Manor Property Owners Association Inc | Community improvement and capacity building | 501(c)(7) | 2013 | $0 | $0 | 2025-12 |
| Norwalk River Rowing Endowment Trust | Recreation and sports | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Orenstein Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2001 | $1.4 million | 2025-12 | |
| Organic Barrow Company | Food, agriculture and nutrition | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Palace Theater Revival Inc | Community improvement and capacity building | 501(c)(3) | 2024 | $0 | $0 | 2024-12 |
| Park Lane Association Inc | Housing and shelter | 501(c)(4) | 2011 | $0 | $0 | 2025-06 |
| Phoenix Basketball Inc | Recreation and sports | 501(c)(3) | 2005 | $0 | $0 | 2025-12 |
| Pieter and Yyvette Eenkema Van Dijk Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2013 | $10.1 million | 2024-12 | |
| Project Amara | Human services | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Re Childrens Project Inc | Medical research | 501(c)(3) | 2010 | $0 | $0 | 2026-06 |
| Riley Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2011 | $1.4 million | 2025-12 | |
| Robert and Diana Borman Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2009 | $8.1 million | 2025-12 | |
| Rotary International | 501(c)(4) | 1942 | $0 | $0 | 2026-06 | |
| S E E K Safely Inc | Human services | 501(c)(3) | 2011 | $0 | $0 | 2025-12 |
| Sacred People Foundation Inc | Human services | 501(c)(3) | 2014 | $0 | $0 | 2024-12 |
| Schaeffer-Phillips Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2001 | $316,212 | 2025-12 | |
| Shanahan Family Foundation Inc | Human services | 501(c)(3) | 1998 | $721,244 | 2024-12 | |
| Sons of Norway | 501(c)(8) | 1940 | $0 | $0 | 2025-12 | |
| Soulthirst Inc | Religion-related | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Springdale Athletic Club CT Inc | Recreation and sports | 501(c)(3) | 2023 | |||
| St Johns Roman Catholic Church | 501(c)(3) | 1946 | 2012-06 | |||
| St Thomas More Foundation Corporation | Religion-related | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| St Thomas More R C Church Corp | 501(c)(3) | 1946 | 2012-06 | |||
| Stamford Sailing Foundation Inc | Recreation and sports | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Stamford Superkings Cricket Club Inc | Recreation and sports | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| Steven B Grune Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2025 | $1 | 2025-12 | |
| Taking It To the Streets Inc | Human services | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| The Alexander Rothschild Family Foundation | Human services | 501(c)(3) | 2025 | $952,000 | 2024-12 | |
| The Arrival Project Inc | Health care | 501(c)(3) | 2026 | $0 | $0 | 2026-01 |
| The Cindy & John Sites Charitable Foundation | 501(c)(3) | 1996 | $1 | 2025-12 | ||
| The Horrigan Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2008 | $13.9 million | 2025-06 | |
| The Maybell Family Foundation Inc | Mental health and crisis intervention | 501(c)(3) | 2007 | $273,000 | 2025-12 | |
| The Sydnor and Miriam Reiss Teachers Fund for Further Study in | Education | 501(c)(3) | 2014 | $0 | $0 | 2025-06 |
| The@nancy and Andrew Jarecki Charitable Trust and Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2000 | $242 | 2025-06 | |
| Theodore A Rapp Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2002 | $3.8 million | 2026-06 | |
| Thomas and Carolyn Witt Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2020 | $2.1 million | 2024-12 | |
| Tidal Force Training Inc | Human services | 501(c)(3) | 2023 | $0 | $1 | 2024-12 |
| Town of Darien Firefighters Foundation Inc | Public safety, disaster preparedness and relief | 501(c)(3) | 2007 | $0 | $0 | 2025-12 |
| United States Power Squadrons | 501(c)(3) | 1949 | $0 | $0 | 2026-03 | |
| United States Power Squadrons | 501(c)(3) | 1949 | $0 | $0 | 2026-03 | |
| Us I420 Class Association Inc | Recreation and sports | 501(c)(3) | 2026 | |||
| Vascular Health Forum Inc | Medical research | 501(c)(3) | 2013 | $0 | $0 | 2025-12 |
| Veterans of Foreign Wars Post 6933 | Public and societal benefit | 501(c)(19) | 2025 | $0 | $0 | 2026-06 |
| Victor and Elise Micati Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2002 | $2 million | 2025-12 | |
| Wall Street Oral History Project | Arts, culture and humanities | 501(c)(3) | 2010 | $0 | $0 | 2024-12 |
| Walsh Family Charitable Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2024 | |||
| Watkins Family Foundation | 501(c)(3) | 1996 | $486,176 | 2024-11 | ||
| Weatherstone Family Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1997 | $1.5 million | 2025-12 | |
| Youth Nourishment Project Corporation | Food, agriculture and nutrition | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Zelnick-Belzberg Charitable Trust Ua | 501(c)(3) | 2000 | $1.5 million | 2025-06 |
By cause in Darien, CT
- Philanthropy, voluntarism and grantmaking foundations 42
- Human services 19
- Recreation and sports 18
- Education 13
- Arts, culture and humanities 11
- Health care 8
- Community improvement and capacity building 7
- Religion-related 7
- Youth development 6
- Medical research 6
- Environment 4
- International, foreign affairs and national security 4
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.