Data / Nonprofits / Connecticut / Fairfield
Nonprofits in Fairfield, CT: 420 registered with the IRS
420 nonprofits are registered with the IRS in Fairfield, CT, 361 of them 501(c)(3) charities; the 136 that report revenue took in $2.34 billion. The largest by revenue: Save the Children Federation Inc ($920.5 million), Sacred Heart University ($575.7 million), Fairfield University ($558.6 million). Most common causes: philanthropy, voluntarism and grantmaking foundations (51), recreation and sports (34), education (33).
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Every organization, largest by revenue first
| Organization | Category | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| Save the Children Federation Inc | International, foreign affairs and national security | 501(c)(3) | 1964 | $920.5 million | $548.8 million | 2024-12 |
| Sacred Heart University | Education | 501(c)(3) | 1964 | $575.7 million | $1.53 billion | 2025-06 |
| Fairfield University | Education | 501(c)(3) | 1943 | $558.6 million | $1.30 billion | 2025-06 |
| Charityvest Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2016 | $113.4 million | $103.4 million | 2024-12 |
| Scus Head Start Programs Inc | Education | 501(c)(3) | 2013 | $52.2 million | $8.9 million | 2024-12 |
| Patterson Club Inc | 501(c)(7) | 1940 | $13.3 million | $32.2 million | 2024-12 | |
| Fairfield Country Day School Corporation | Education | 501(c)(3) | 1943 | $12.8 million | $21.2 million | 2025-06 |
| Brooklawn Country Club Inc | 501(c)(7) | 1940 | $11 million | $26.3 million | 2025-01 | |
| Country Club of Fairfield Inc | 501(c)(7) | 1945 | $9.8 million | $32.2 million | 2025-12 | |
| The Connecticut Audubon Society Incorporated | Environment | 501(c)(3) | 1942 | $8.4 million | $71.9 million | 2025-04 |
| Save the Children Action Network | Civil rights, social action and advocacy | 501(c)(4) | 2014 | $7.8 million | $4.3 million | 2024-12 |
| Unquowa School Association Inc | 501(c)(3) | 1935 | $6.9 million | $9.8 million | 2025-06 | |
| Operation Hope of Fairfield Inc | Housing and shelter | 501(c)(3) | 1987 | $3.7 million | $4.2 million | 2025-09 |
| St Catherine Center for Special Needs Inc | 501(c)(3) | 1946 | $3.7 million | $14.9 million | 2025-06 | |
| Fairfield Theatre Company Inc | Arts, culture and humanities | 501(c)(3) | 2001 | $3.4 million | $3.1 million | 2025-06 |
| Bioversity International USA Inc | 501(c)(3) | 2014 | $3.1 million | $1.3 million | 2025-12 | |
| Aspetuck Land Trust Inc | Environment | 501(c)(3) | 1967 | $2.8 million | $64.4 million | 2024-12 |
| Oak Lawn Cemetery Association | 501(c)(13) | 1951 | $2.5 million | $17.2 million | 2024-12 | |
| Fairfield Beach Club Inc | 501(c)(7) | 1957 | $2.2 million | $5.1 million | 2025-10 | |
| Church Housing for Fairfield Inc | Housing and shelter | 501(c)(3) | 1975 | $2 million | $5.4 million | 2025-12 |
| Harbor Light Foundation | Youth development | 501(c)(3) | 2009 | $1.5 million | $1.4 million | 2025-08 |
| Southern Connecticut Christian Counseling Center Inc | Human services | 501(c)(3) | 1984 | $1.4 million | $196,237 | 2024-12 |
| Fairfield Historical Society | Arts, culture and humanities | 501(c)(3) | 1950 | $1.2 million | $13.8 million | 2025-06 |
| Great Beginnings Montessori School Inc | 501(c)(3) | 1997 | $1.2 million | $1.8 million | 2025-06 | |
| Sullivan McKinney Elder Housing Inc | Housing and shelter | 501(c)(3) | 1984 | $1 million | $2.3 million | 2025-12 |
| Gaelic American Club Inc | 501(c)(7) | 1990 | $913,459 | $3 million | 2024-12 | |
| Lawncroft Cooperative Cemetery | 501(c)(13) | 1948 | $720,905 | $212,289 | 2025-12 | |
| Black Rock Theater Corporation | Arts, culture and humanities | 501(c)(3) | 2016 | $706,629 | $61,088 | 2024-12 |
| Fairfield United Soccer Association Inc | 501(c)(3) | 1993 | $693,561 | $519,241 | 2024-12 | |
| Greater Connecticut Youth Orchestras Inc | Arts, culture and humanities | 501(c)(3) | 1992 | $643,642 | $900,023 | 2025-06 |
| Team Woofgang & Co Inc | Employment | 501(c)(3) | 2017 | $629,473 | $687,526 | 2025-06 |
| Fairfield County Childrens Choir Inc | Arts, culture and humanities | 501(c)(3) | 1999 | $576,069 | $294,438 | 2025-06 |
| Fairfield Housing Corporation | Housing and shelter | 501(c)(3) | 2016 | $555,415 | $5.7 million | 2024-12 |
| Home Builders & Remodelers Association of Fairfield County | 501(c)(6) | 1969 | $544,125 | $299,379 | 2025-12 | |
| Connecticut Dance School Inc | Arts, culture and humanities | 501(c)(3) | 1995 | $511,830 | $249,737 | 2025-06 |
| American Institute for Neuro Integrative Development Inc | Education | 501(c)(3) | 1993 | $492,671 | $5.3 million | 2025-06 |
| Fairfield Youth Football Incorporated | Recreation and sports | 501(c)(3) | 2021 | $485,373 | $179,397 | 2025-03 |
| Artful Learning Inc | Education | 501(c)(3) | 2010 | $471,363 | $35,944 | 2024-12 |
| Five Frogs Inc | Public and societal benefit | 501(c)(3) | 2016 | $420,118 | $534,852 | 2025-06 |
| Live Green Connecticut Inc | Environment | 501(c)(3) | 2014 | $415,786 | $32,113 | 2024-12 |
| North American Association of Subway Franchisees Inc | Community improvement and capacity building | 501(c)(6) | 2014 | $413,130 | $625,622 | 2024-12 |
| Fairfield Chamber of Commerce Inc | Community improvement and capacity building | 501(c)(6) | 1976 | $412,444 | $213,759 | 2025-06 |
| Tubular Exchanger MFRS Association Inc | Community improvement and capacity building | 501(c)(6) | 2000 | $398,183 | $844,776 | 2025-06 |
| DLG4 Shine Foundation Inc | Diseases, disorders and medical disciplines | 501(c)(3) | 2022 | $379,505 | $317,567 | 2025-12 |
| Als Angels Inc | Human services | 501(c)(3) | 2020 | $368,994 | $238,778 | 2024-12 |
| Little League Baseball Inc | 501(c)(3) | 1981 | $349,764 | $192,891 | 2025-09 | |
| Fairfield County Interscholastic Athletic Conference Inc | Recreation and sports | 501(c)(3) | 2005 | $348,619 | $183,885 | 2025-06 |
| Hand Tools Institute | 501(c)(6) | 1976 | $337,317 | $312,730 | 2025-12 | |
| Cancer Couch Foundation Inc | Diseases, disorders and medical disciplines | 501(c)(3) | 2016 | $311,922 | $253,704 | 2024-12 |
| Fairfield Center Stage Inc | Arts, culture and humanities | 501(c)(3) | 2010 | $303,676 | $74,066 | 2025-06 |
| Micah Housing Inc | Housing and shelter | 501(c)(3) | 1992 | $293,240 | $2.7 million | 2025-09 |
| High School Scholarship Foundation of Fairfield Inc | Education | 501(c)(3) | 1991 | $277,157 | $2.8 million | 2025-09 |
| International Association of Fire Fighters | 501(c)(5) | 1940 | $272,861 | $871,038 | 2026-03 | |
| Friends of Christ in India Inc | International, foreign affairs and national security | 501(c)(3) | 2000 | $269,637 | $302,842 | 2024-12 |
| Fairfield Police Union Scholarship Fund Inc | Education | 501(c)(3) | 2015 | $257,392 | $1.6 million | 2025-12 |
| Yue-Sai Kan One World Foundation LTD | International, foreign affairs and national security | 501(c)(3) | 2012 | $247,783 | $322,951 | 2024-12 |
| Kappa Delta Sorority | 501(c)(7) | 1970 | $228,973 | $177,402 | 2025-06 | |
| Little League Baseball Inc | 501(c)(3) | 1967 | $226,041 | $146,921 | 2025-09 | |
| Credit Roundtable Association | Community improvement and capacity building | 501(c)(6) | 2020 | $221,524 | $547,491 | 2025-12 |
| Gerald and Sybil Cohen Family Foundation | Education | 501(c)(3) | 2023 | $219,853 | $1.2 million | 2025-12 |
| The Pilot House Foundation Inc | Diseases, disorders and medical disciplines | 501(c)(3) | 2007 | $202,685 | $1.6 million | 2025-06 |
| Fairfield County Bar Association Inc | 501(c)(6) | 1984 | $200,784 | $250,572 | 2025-08 | |
| Ptsa Connecticut Congress | 501(c)(3) | 1955 | $199,685 | $112,179 | 2025-06 | |
| Scandinavian Club Inc | 501(c)(4) | 2021 | $199,601 | $465,697 | 2025-12 | |
| Collective Oyster Recycling & Restoration Foundation | Environment | 501(c)(3) | 2023 | $199,558 | $122,473 | 2025-12 |
| Nuclear Information & Records Management Assoc Incorporated | 501(c)(6) | 1981 | $192,954 | $147,583 | 2025-12 | |
| Bridgeport Field of Dreams Foundation Inc | Recreation and sports | 501(c)(3) | 2016 | $187,327 | $272,498 | 2024-12 |
| Ptsa Connecticut Congress | 501(c)(3) | 1955 | $185,710 | $49,604 | 2025-06 | |
| County Assemblies Inc | 501(c)(3) | 1958 | $181,859 | $38,102 | 2025-06 | |
| Mikeys Way Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2006 | $181,179 | $210,301 | 2024-12 |
| Greenfield Commons Inc | Housing and shelter | 501(c)(3) | 2007 | $169,230 | $1.2 million | 2024-12 |
| Bear Hugs Childcare Center | Human services | 501(c)(3) | 2025 | $165,127 | $2,152 | 2025-12 |
| Father Coleman Foundation of Fair Field Inc | Community improvement and capacity building | 501(c)(4) | 2016 | $161,313 | $4.2 million | 2024-12 |
| Tabernacle of Praise Prophetic Ministries Inc | Religion-related | 501(c)(3) | 2021 | $160,782 | $10,015 | 2024-12 |
| Kids Time By the Sea Inc | Human services | 501(c)(3) | 1999 | $159,198 | $80,479 | 2025-12 |
| Ptsa Connecticut Inc | 501(c)(3) | 1955 | $158,399 | $47,813 | 2025-06 | |
| Expansion Joint MFRS Association Inc | 501(c)(6) | 1956 | $139,334 | $73,768 | 2026-04 | |
| Ptsa Connecticut Inc | 501(c)(3) | 1979 | $138,829 | $89,224 | 2026-06 | |
| Fairfield Police Foundation CT Inc | Public and societal benefit | 501(c)(3) | 2022 | $136,696 | $263,006 | 2025-12 |
| Lifes Angels Inc | Diseases, disorders and medical disciplines | 501(c)(3) | 2017 | $128,617 | $42,763 | 2024-12 |
| Fairfield Fire Fighters Charitable Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2014 | $125,280 | $124,393 | 2024-12 |
| Pid Fund for Fairfield Rugby Inc | Recreation and sports | 501(c)(3) | 2010 | $116,481 | $106,960 | 2024-12 |
| Ptsa Connecticut Inc | 501(c)(3) | 1979 | $113,337 | $74,221 | 2025-06 | |
| SB3C Foundation Inc | Science and technology | 501(c)(3) | 2016 | $109,641 | $334,939 | 2025-12 |
| Rma the Risk Management Association New York Chapter Inc | 501(c)(6) | 1945 | $109,635 | $102,018 | 2025-08 | |
| Mill River Wetland Committee Inc | Environment | 501(c)(3) | 1970 | $107,773 | $211,498 | 2025-12 |
| Friends of the Fairfield Public Library Inc | Education | 501(c)(3) | 2004 | $96,580 | $530,756 | 2025-06 |
| Knights of Columbus | Mutual and membership benefit | 501(c)(8) | 2017 | $95,586 | $14,358 | 2025-12 |
| Sticks for Soldiers Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2014 | $94,027 | $58,904 | 2025-06 |
| Warde Football Gridiron | Recreation and sports | 501(c)(3) | 2018 | $91,257 | $7,790 | 2024-12 |
| Junior League of Eastern Fairfield County Inc | Community improvement and capacity building | 501(c)(3) | 1934 | $90,740 | $267,127 | 2025-06 |
| Ptsa Connecticut Inc | 501(c)(3) | 1979 | $86,712 | $90,300 | 2025-06 | |
| Veteran Feminists of America Inc | Civil rights, social action and advocacy | 501(c)(3) | 1995 | $86,212 | $355,215 | 2024-12 |
| Bridgeport Animal Rescue Crew Inc | Public and societal benefit | 501(c)(3) | 2016 | $85,347 | $226,151 | 2024-06 |
| Fairfield Rotary Club Foundation Inc | Public and societal benefit | 501(c)(3) | 1966 | $84,508 | $1.2 million | 2024-06 |
| Saint Patricks Football Club | Recreation and sports | 501(c)(3) | 2004 | $84,067 | $32,100 | 2025-12 |
| Octagon Performance Group Inc | Arts, culture and humanities | 501(c)(3) | 2019 | $82,823 | $23,911 | 2024-12 |
| Teddy Maloney Foundation Inc | Human services | 501(c)(3) | 2016 | $81,019 | $18,363 | 2025-12 |
| Westchester Ultimate Disc Inc | Recreation and sports | 501(c)(3) | 1999 | $79,618 | $99,147 | 2025-12 |
| Jewish Family Service Inc | Human services | 501(c)(3) | 1941 | $77,451 | $78,695 | 2025-06 |
| Beyond Limits International Inc | Human services | 501(c)(3) | 2013 | $76,763 | $8,657 | 2025-12 |
| Trumbull Track Inc | Recreation and sports | 501(c)(3) | 2022 | $76,471 | $8,114 | 2024-12 |
| Haitian Educational Initiatives | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2012 | $75,201 | $24,437 | 2025-12 |
| The Frank Habansky Food Pantry Inc | Food, agriculture and nutrition | 501(c)(3) | 2008 | $72,426 | $171,870 | 2026-06 |
| Sudanese American Society in | Human services | 501(c)(3) | 2021 | $71,519 | $27,720 | 2024-12 |
| Light and Life Foundation Inc | International, foreign affairs and national security | 501(c)(3) | 2010 | $69,402 | $110,288 | 2025-12 |
| Knights of Columbus | 501(c)(8) | 1940 | $67,681 | $21,881 | 2025-12 | |
| Bradys Smile | Human services | 501(c)(3) | 2008 | $67,265 | $126,583 | 2025-12 |
| Connecticut Center for Patient Safety | Public safety, disaster preparedness and relief | 501(c)(3) | 2005 | $64,274 | $69,220 | 2023-06 |
| Capital Markets Credit Analysts Society Inc | 501(c)(6) | 1990 | $63,543 | $160,123 | 2026-03 | |
| Igor I Sikorsky Historical Archives | Arts, culture and humanities | 501(c)(3) | 1996 | $62,109 | $165,648 | 2025-12 |
| Fairfield Police Explorers | Youth development | 501(c)(3) | 1998 | $61,984 | $34,800 | 2026-06 |
| Rotary International | 501(c)(4) | 1942 | $60,491 | $99,342 | 2025-06 | |
| Ptsa Connecticut Inc | 501(c)(3) | 1955 | $56,404 | $43,179 | 2025-06 | |
| Fairfield Police Benefit | Crime and legal-related | 501(c)(5) | 2014 | $56,233 | $37,626 | 2025-12 |
| National Association of Letter Carriers | 501(c)(5) | 1944 | $54,748 | $80,654 | 2025-12 | |
| Fairfield County Trauma Response Team Inc | Mental health and crisis intervention | 501(c)(3) | 2019 | $52,670 | $85,502 | 2025-12 |
| Love Like Casey | Mental health and crisis intervention | 501(c)(3) | 2024 | $52,347 | $68,896 | 2025-12 |
| Ptsa Connecticut Inc | 501(c)(3) | 1955 | $49,154 | $40,406 | 2025-06 | |
| Ptsa Connecticut Inc | 501(c)(3) | 1955 | $49,031 | $66,799 | 2025-06 | |
| Giving Fairfield Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2025 | $44,435 | $11,204 | 2025-12 |
| Ace Mentor Program of America Inc | Education | 501(c)(3) | 2006 | $41,872 | $177,112 | 2023-12 |
| National Association of Government Employees | 501(c)(5) | 1973 | $41,132 | $161,776 | 2025-12 | |
| Ptsa Connecticut Inc | 501(c)(3) | 1955 | $36,912 | $135,867 | 2025-06 | |
| Adoption Hope Foundation Inc | Human services | 501(c)(3) | 2015 | $31,298 | $30,855 | 2024-09 |
| American Legion | 501(c)(19) | 1946 | $31,050 | $175,890 | 2026-06 | |
| Ptsa Connecticut Inc | 501(c)(3) | 1955 | $27,438 | $78,546 | 2025-06 | |
| Orthopaedic Specialty Group Education Foundation Inc | International, foreign affairs and national security | 501(c)(3) | 2009 | $27,053 | $156,707 | 2024-12 |
| Interactive Educational Theatre Inc | Arts, culture and humanities | 501(c)(3) | 1999 | $26,989 | $2,476 | 2024-12 |
| Feile Incorporated | Arts, culture and humanities | 501(c)(3) | 1994 | $23,120 | $251,195 | 2025-12 |
| Pta Connecticut Congress | 501(c)(3) | $21,780 | $60,940 | 2025-06 | ||
| Ptsa Connecticut Inc | 501(c)(3) | 1955 | $17,562 | $44,298 | 2025-06 | |
| Federation of Asian Professor Associations Inc | Education | 501(c)(3) | 2026 | $11,031 | $9,018 | 2025-12 |
| Entrepreneurship Foundation Inc | Education | 501(c)(3) | 2008 | $10,362 | $146,751 | 2025-12 |
| Pet Protectors Inc | Animal-related | 501(c)(3) | 2001 | $4,569 | $59,423 | 2025-12 |
| Creating Wings Co | Public and societal benefit | 501(c)(3) | 2025 | $2,755 | $1,935 | 2025-12 |
| 9TH Floor Foundation Inc | Health care | 501(c)(3) | 2024 | $0 | $0 | 2026-01 |
| Afoofa Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Agape Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2006 | $274,333 | 2024-12 | |
| American Chemical Society | 501(c)(3) | 1946 | $0 | $0 | 2025-12 | |
| American Chinese Heritage Association | Arts, culture and humanities | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| American Legion | 501(c)(19) | 1946 | $0 | $0 | 2025-12 | |
| Ancient Order of Hibernians in America | 501(c)(8) | 1945 | $0 | $0 | 2025-12 | |
| Andrea T Hope for Life Foundation Inc | Religion-related | 501(c)(3) | 2024 | $0 | $0 | 2024-12 |
| Andrew & Margaret Rosinger Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1997 | $155,978 | 2025-12 | |
| Andy Smiles Forever Foundation Inc | Education | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Armanhi Transportation Inc | Health care | 501(c)(3) | 2025 | |||
| Aspire Films Inc | Arts, culture and humanities | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Association of Retired Educators of Fairfield | Recreation and sports | 501(c)(7) | 2002 | $0 | $0 | 2024-08 |
| Assumption Catholic School Inc | 501(c)(3) | 1946 | ||||
| Axe Houghton Foundation | 501(c)(3) | 1966 | $8.2 million | 2026-02 | ||
| Bannow-Larson Foundation Inc 1976 | 501(c)(3) | 1966 | $1 | 2025-07 | ||
| Barbetta Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2015 | $3.5 million | 2025-12 | |
| Being the Blessing Foundation | Religion-related | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Believe Your Grreatness Corp | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2023 | $18,901 | 2025-12 | |
| Beta Alpha Psi National Council | 501(c)(3) | 1974 | $0 | $0 | 2026-04 | |
| Beta Theta Pi Fraternity | 501(c)(7) | 1967 | ||||
| Better Life Connecticut Inc | Human services | 501(c)(3) | 2026 | |||
| Black Rock Congregational Church | 501(c)(3) | 1998 | ||||
| Brain Doc Foundation Inc | Religion-related | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Breakthrough Morgellons Foundation | Medical research | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Bridgeport Boat Owners Assoc Inc | Recreation and sports | 501(c)(7) | 2014 | $0 | $0 | 2025-12 |
| Bridgeport Humane Society Inc | Animal-related | 501(c)(3) | 2004 | $0 | $0 | 2025-06 |
| CT Fury Fastpitch Corp | Recreation and sports | 501(c)(3) | 2026 | |||
| Capalbo Strong Inc | Diseases, disorders and medical disciplines | 501(c)(3) | 2026 | |||
| Carmelites of Mary Ever Virgin Inc | Religion-related | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Charitable Oncology Fund Inc | Medical research | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Charles Samoperil Humanitarian Memorial Foundation | 501(c)(3) | 1982 | $854,977 | 2025-12 | ||
| Charlie Mike Racing | Recreation and sports | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Christ Presbyterian Church | 501(c)(3) | 1974 | ||||
| Church for All Nations Inc | Religion-related | 501(c)(3) | 2001 | |||
| Church of Bethlehem | Religion-related | 501(c)(3) | 2010 | |||
| Church of Our Lady of the Assumption Corp | 501(c)(3) | 1946 | 2014-06 | |||
| City Coast Church | Religion-related | 501(c)(3) | 2022 | |||
| Claire and Marie Schifellite Foundation for Education and Healt | 501(c)(3) | 1982 | $12,808 | 2025-03 | ||
| Classes 4 Classes Inc | Education | 501(c)(3) | 2013 | $0 | $0 | 2025-08 |
| Claytors Ministry of Prayer and Deliverance Inc | 501(c)(3) | 1982 | $0 | $0 | 2022-12 | |
| Cler Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2007 | $411,123 | 2025-06 | |
| Co2no Inc | Science and technology | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Coach Cal Scholarship | Education | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Cobra Rugby Incorporated | Recreation and sports | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| College Park Section III Owners Association Incorporated | Mutual and membership benefit | 501(c)(7) | 2013 | $0 | $0 | 2025-12 |
| Columbiettes Incorporated | 501(c)(10) | 1977 | $0 | $0 | 2025-12 | |
| Community Healing Network CT Inc | Health care | 501(c)(3) | 2025 | $0 | $0 | 2025-06 |
| Compassionate Christian Counseling Inc | Religion-related | 501(c)(3) | 2025 | |||
| Connecticut Healing Arts Initiative Inc | Arts, culture and humanities | 501(c)(3) | 2025 | |||
| Connecticut Ornithological Association Inc | 501(c)(3) | 1986 | $0 | $0 | 2026-06 | |
| Connecticut Pain Society | Community improvement and capacity building | 501(c)(6) | 2003 | $0 | $0 | 2025-12 |
| Connecticut Vegan Center Inc | Animal-related | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Croatian Fraternal Union of America | 501(c)(8) | 1941 | $0 | $0 | 2025-12 | |
| Croatian Fraternal Union of America | 501(c)(8) | 1941 | $0 | $0 | 2025-12 | |
| Curtis Summer Camp Fund Inc | Youth development | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Cyrus W and Amy F Jones and Bessie D Phelps Foundation Inc | 501(c)(3) | 1976 | $3.5 million | 2025-09 | ||
| Damon Sisters Foundation Inc | Diseases, disorders and medical disciplines | 501(c)(3) | 2016 | $0 | $0 | 2024-12 |
| Dean Dubarry Moore Memorial Fund | Recreation and sports | 501(c)(3) | 2016 | $0 | $0 | 2023-12 |
| Delta Kappa Gamma Society | 501(c)(6) | 1967 | $0 | $0 | 2025-06 | |
| Demattia Charitable Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1999 | $809,716 | 2025-12 | |
| Direct Impact Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2021 | $615,793 | 2024-12 | |
| Diya Lights Inc | Arts, culture and humanities | 501(c)(3) | 2026 | |||
| Doolittle Family Foundation Inc | 501(c)(3) | 2014 | $114,500 | 2025-12 | ||
| Dorothy B Davis Foundation | 501(c)(3) | 2015 | $31.2 million | 2024-12 | ||
| Dr Adusei Grateful Charities Inc | Religion-related | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Dr Adusei Kindness Aid Inc | Religion-related | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Driesman Charitable Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2006 | $687,338 | 2025-12 | |
| Eintracht Kraken Unterstuetzungs Verien | 501(c)(13) | 1994 | $0 | $0 | 2025-12 | |
| Elizabeth Bond Davis Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2020 | $1.3 million | 2025-12 | |
| Elsie A Brown Fund Inc | 501(c)(3) | 1953 | $1.8 million | 2024-12 | ||
| Embroiderers Guild of America Inc | 501(c)(3) | 1976 | ||||
| Emil and Toby Meshberg Family Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2013 | $3.3 million | 2024-12 | |
| Everwell Mental Health | Mental health and crisis intervention | 501(c)(3) | 2024 | |||
| Fairfield Babe Ruth Inc | Recreation and sports | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Fairfield Baptist Church | Religion-related | 501(c)(3) | 2015 | |||
| Fairfield Beach Road Association Inc | 501(c)(4) | 1989 | $0 | $0 | 2025-06 | |
| Fairfield County Tennis League Inc | Recreation and sports | 501(c)(7) | 2011 | $0 | $0 | 2025-12 |
| Fairfield County Youth Field Hockey League Inc | Recreation and sports | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Fairfield Easton Regional Catholic School Inc | 501(c)(3) | 1946 | ||||
| Fairfield Foundation for Education Inc | Education | 501(c)(3) | 2015 | $0 | $0 | 2026-02 |
| Fairfield Girls Hockey Booster Club | Recreation and sports | 501(c)(3) | 2023 | $0 | $0 | 2023-06 |
| Fairfield Healing Church Inc | Religion-related | 501(c)(3) | 2024 | |||
| Fairfield Korean Church | Religion-related | 501(c)(3) | 1996 | |||
| Fairfield Ludlowe Girls Volleyball Club | Education | 501(c)(3) | 2025 | |||
| Fairfield Moms | Community improvement and capacity building | 501(c)(3) | 2026 | |||
| Fairfield Rugby Club Incorporated | Recreation and sports | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Fairways for Heroes | Education | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Falcons Cricket Club | Recreation and sports | 501(c)(3) | 2025 | |||
| Fastpitch Ireland WNT Inc | Recreation and sports | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Federated Garden Clubs of Connecticut Inc | 501(c)(3) | 1967 | $0 | $0 | 2025-12 | |
| Federated Garden Clubs of Connecticut Inc | 501(c)(3) | 1967 | $0 | $0 | 2025-12 | |
| Ferguson Family Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2000 | $2.9 million | 2025-12 | |
| Fidelity Masonic Temple Association Inc | 501(c)(2) | 2014 | $0 | $0 | 2025-10 | |
| Fideliy St Johns 3 Af and Am Masons | Mutual and membership benefit | 501(c)(3) | 2023 | $1.6 million | 2022-10 | |
| Fifty First Street Dot Org | Human services | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| First Baptist Church of Fairfield | 501(c)(3) | 1955 | ||||
| First Presbyterian Church | 501(c)(3) | 1964 | ||||
| Fit Club Foundation Inc | Human services | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Flying Yankees Club Corp | Public and societal benefit | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Frank C Godfrey Unit No 12 American Legion Auxiliary | Public and societal benefit | 501(c)(19) | 2023 | $0 | $0 | 2026-07 |
| Fred R & Hazel W Carstensen Memorial Foundation Inc | 501(c)(3) | 1983 | $2.7 million | 2025-06 | ||
| Friends of the Bigelow Center for Senior Activities Inc | Human services | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Furnishing Faith | Human services | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Fyfha | Recreation and sports | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Fyfha Inc | Recreation and sports | 501(c)(3) | 2025 | |||
| Garrae Services Foundation | Human services | 501(c)(3) | 2026 | |||
| Girl From the Grotto Inc | Health care | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Global Race Foundation Incorporated | Recreation and sports | 501(c)(3) | 2024 | $0 | $0 | 2024-12 |
| Grace Organization Inc | Arts, culture and humanities | 501(c)(3) | 2025 | |||
| Gravitymoves Inc | Arts, culture and humanities | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Greater Opportunities for Adults With Learning Disabilities | Human services | 501(c)(3) | 2011 | $0 | $0 | 2025-12 |
| Greenfield Hill Foundation Inc | Diseases, disorders and medical disciplines | 501(c)(3) | 2003 | $0 | $0 | 2025-12 |
| Greenfield Hill Village Improvement Society | 501(c)(4) | 1965 | $0 | $0 | 2025-12 | |
| H Smith Richardson Golf Club | Recreation and sports | 501(c)(7) | 1999 | $0 | $0 | 2025-12 |
| HBC All Sports Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2024 | $1 | 2024-12 | |
| Hands On Projects Inc | Arts, culture and humanities | 501(c)(3) | 2025 | |||
| Harvard Business School Club of Connecticut Community Partners | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2005 | $0 | $0 | 2025-08 |
| Hatfield Fund | 501(c)(3) | 1964 | $186,745 | 2024-12 | ||
| Henry Unger Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1996 | $1.9 million | 2025-06 | |
| Hindu Mandir | Religion-related | 501(c)(3) | 1997 | |||
| Hockey Haven Inc | Education | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Holy Brancoveanu Martyrs Romanian Orthodox Church | 501(c)(3) | 2010 | ||||
| Holy Cross Roman Catholic Church Corporation | 501(c)(3) | 1946 | ||||
| Holy Family and St Emery Parish Corporation | 501(c)(3) | 1946 | 2014-06 | |||
| Honor Society of Phi Kappa Phi | Education | 501(c)(3) | 1999 | $0 | $0 | 2026-06 |
| Inner Agape Light Ministry Inc | Religion-related | 501(c)(3) | 2025 | $0 | $0 | 2025-06 |
| Inspireinc | Health care | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Institute for Neuroinclusion | Human services | 501(c)(3) | 2026 | |||
| Iota Tau Chapter of Delta Tau Delta International Fraternity | Education | 501(c)(7) | 2023 | $0 | $0 | 2025-06 |
| Ir2l Inc | Human services | 501(c)(3) | 2015 | $0 | $0 | 2023-12 |
| Irving Moorin Charitable Trust | 501(c)(3) | 1971 | $0 | $0 | 2025-07 | |
| Islamic Society of Stamford Iss Connecticut | Religion-related | 501(c)(3) | 1998 | |||
| J109 Class Association | Recreation and sports | 501(c)(7) | 2017 | $0 | $0 | 2025-12 |
| James H Wurz Jr and Edward T Wurz Sr Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2010 | $5 million | 2025-12 | |
| Jason Albarelli Memorial Foundation Inc | Mental health and crisis intervention | 501(c)(3) | 2019 | $0 | $0 | 2023-12 |
| John Patrick Flanagan Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2009 | $241,891 | 2024-12 | |
| Jon Castaneda Foundation Inc | Education | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Jon-Alec Fund | Education | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Joshua Hermsen Heart Fund | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Joyce Hergenhan Private Foundation | Human services | 501(c)(3) | 1998 | $3.5 million | 2025-12 | |
| K C H Kombit Chanje Haiti Incorporated | Food, agriculture and nutrition | 501(c)(3) | 2025 | |||
| Kappa Alpha Theta Fraternity | 501(c)(7) | 1940 | ||||
| Kathryn M and Ronald J Herman Jr Charitable Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2005 | $1,666 | 2025-12 | |
| Kevins Afterglow | Human services | 501(c)(3) | 2022 | $179,945 | 2025-12 | |
| Kindcare Foundation Inc | Human services | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Kiwanis Foundation of Fairfield Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1997 | $0 | $0 | 2025-09 |
| Kiwanis International Inc | 501(c)(4) | 1940 | $0 | $0 | 2025-09 | |
| Knight Intentions Today & Tomorrow | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2021 | $435,559 | 2025-12 | |
| Knights of Columbus | 501(c)(8) | 1940 | $0 | $0 | 2025-12 | |
| Knights of Columbus | 501(c)(8) | 1940 | $0 | $0 | 2025-12 | |
| Knobloch Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1997 | $163.2 million | 2024-12 | |
| Kreitler Foundation Inc | 501(c)(3) | 1991 | $2 million | 2024-12 | ||
| Lagoinha Bridgeport Inc | Religion-related | 501(c)(3) | 2024 | |||
| Last Day Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2010 | $1 | 2025-12 | |
| League of Women Voters of Connecticut Inc | 501(c)(4) | 1964 | $0 | $0 | 2025-06 | |
| Learning Disabilities Association of Connecticut | Education | 501(c)(3) | 2020 | $0 | $0 | 2024-12 |
| Leclerc Charity Fund | 501(c)(3) | 1968 | $12.5 million | 2024-12 | ||
| Leonard Litz Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2020 | $2.7 million | 2024-12 | |
| Life Is Priceless Foundation | Human services | 501(c)(3) | 2011 | $0 | $0 | 2025-12 |
| Litchfield Hills Highland Games | Arts, culture and humanities | 501(c)(3) | 2026 | |||
| Ludlowe Falcons Lacrosse Inc | Recreation and sports | 501(c)(3) | 2026 | $0 | $0 | 2025-05 |
| MCCF Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2016 | $0 | $0 | 2024-12 |
| Magd Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Magyar Studies of America Inc | 501(c)(3) | 1979 | $0 | $0 | 2023-12 | |
| Mandarin Mathematics Corporation | Education | 501(c)(3) | 2020 | $0 | $0 | 2024-12 |
| Marie G Dennett Foundation Inc | 501(c)(3) | 1982 | $6.7 million | 2025-08 | ||
| Mary William and Beatrice Horvath Scholarship Fund | Education | 501(c)(3) | 2014 | $497,294 | 2025-12 | |
| Medi Teddy Inc | Human services | 501(c)(3) | 2019 | $0 | $0 | 2025-05 |
| Mikes Partners Inc | Human services | 501(c)(3) | 2026 | |||
| Mill River Estuary Foundation Inc | Environment | 501(c)(3) | 2026 | |||
| Mind & Body Alliance Charity Foundation NFP | Religion-related | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Music Parents Association of Thefairfield High Schools Inc | Education | 501(c)(3) | 2023 | $0 | $0 | 2026-06 |
| Mustang Lacrosse Incorporated | Recreation and sports | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Naina Foundation | Human services | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Narrate Conferences Inc | Arts, culture and humanities | 501(c)(3) | 2007 | $0 | $105,999 | 2024-12 |
| National Charity League Inc Fairfield Chapter | Human services | 501(c)(3) | 2014 | $0 | $0 | 2026-05 |
| National Society of the Daughters of the American Revolution | 501(c)(3) | 1948 | $0 | $0 | 2025-12 | |
| New England Presenters Inc | Arts, culture and humanities | 501(c)(3) | 2020 | $0 | $0 | 2026-06 |
| New Haven Bible Students Church | Religion-related | 501(c)(3) | 2011 | $0 | $0 | 2025-12 |
| Nina Foundation Inc | Education | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Norwalk Youth Field Hockey | Recreation and sports | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Notre Dame Catholic High School | 501(c)(3) | 1946 | ||||
| One Percent Foundation | Diseases, disorders and medical disciplines | 501(c)(3) | 2017 | $0 | $0 | 2023-06 |
| One Source for Longevity Readiness Inc | Human services | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| One World Dance Foundation | Arts, culture and humanities | 501(c)(3) | 2025 | |||
| Our Saviours Evangelical Lutheran Church | 501(c)(3) | 1986 | ||||
| PRN Relief International | Health care | 501(c)(3) | 2007 | $0 | $0 | 2025-12 |
| Pacific Star Charitable Foundation | Community improvement and capacity building | 501(c)(4) | 2026 | |||
| Paloian Family Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2014 | $1,811 | 2025-12 | |
| Participatory Health | Health care | 501(c)(3) | 2025 | |||
| Pathways To Purpose Inc | Youth development | 501(c)(3) | 2025 | |||
| People S Alternative Choice Community Services Inc | Human services | 501(c)(3) | 2025 | |||
| Petchers Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2007 | $3.8 million | 2024-12 | |
| Pi Mu Epsilon Inc | 501(c)(3) | 1953 | $0 | $0 | 2026-06 | |
| Pi Mu Epsilon Inc | 501(c)(3) | 1953 | $0 | $0 | 2026-06 | |
| Pink Concussions Inc | Medical research | 501(c)(3) | 2015 | $0 | $0 | 2024-12 |
| Prentice Foundation Inc | 501(c)(3) | 1994 | $25.7 million | 2024-12 | ||
| Probus National Inc | 501(c)(3) | 1967 | $0 | $0 | 2024-06 | |
| Probus National Inc | 501(c)(3) | 1967 | $0 | $0 | 2023-12 | |
| Psi Chi the International Honor Society in Psychology | 501(c)(3) | 1957 | $0 | $0 | 2025-06 | |
| Psi Chi the National Honor Society in Psychology | 501(c)(3) | 1957 | $0 | $0 | 2025-06 | |
| Ptsa Connecticut Congress | 501(c)(3) | 1979 | $0 | $0 | 2025-06 | |
| Ptsa Connecticut Congress | 501(c)(3) | 1979 | $0 | $0 | 2025-06 | |
| Ptsa Connecticut Inc | 501(c)(3) | 1979 | $0 | $0 | 2025-06 | |
| Reagan Sloane Shanley Fund Inc | Human services | 501(c)(3) | 2026 | |||
| Redeeming Love Christian Fellowship Inc | 501(c)(3) | 1987 | ||||
| Rescuing Lives Ministries | Religion-related | 501(c)(3) | 2021 | |||
| Revolving Soap | Human services | 501(c)(3) | 2024 | |||
| Rock Church of Fairfield | 501(c)(3) | 1992 | ||||
| Rooted Together Company | Food, agriculture and nutrition | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Russo Family Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1999 | $223,561 | 2024-12 | |
| Rust Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1999 | $5 million | 2025-12 | |
| SGT Thomas J Nelson Post 9427 Veterans of Foreign Wars of the | Public and societal benefit | 501(c)(19) | 2025 | $0 | $0 | 2025-12 |
| Sabena Stuart Foundation Inc | Religion-related | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Saso Girls Fairfield | Youth development | 501(c)(3) | 2019 | $0 | $0 | 2025-05 |
| Saving Babies Lives Inc | Human services | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Scholars & Athletes Serving Others | Youth development | 501(c)(3) | 2019 | $0 | $0 | 2025-05 |
| Shamrock Traditional Irish Music Society Inc | Arts, culture and humanities | 501(c)(3) | 2000 | $0 | $0 | 2025-12 |
| Sigma Chi Fraternity | 501(c)(7) | 1937 | $0 | $0 | 2025-06 | |
| Sigma Theta Tau Inc | 501(c)(3) | 1954 | $0 | $0 | 2025-06 | |
| Sigma Theta Tau International Inc | 501(c)(3) | 1954 | $0 | $0 | 2025-06 | |
| Skylight Charitable Trust | 501(c)(3) | 2021 | $106.2 million | 2024-12 | ||
| Soroptimist International of the Americas Inc | Crime and legal-related | 501(c)(3) | 2002 | $0 | $0 | 2025-06 |
| Sound Maritime Group Inc | Recreation and sports | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Soundsurfer Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2014 | $0 | $0 | 2023-12 |
| South Asian Women Physicians Society Corp | Arts, culture and humanities | 501(c)(3) | 2025 | $0 | $0 | 2025-05 |
| Southern Connecticut Church of Christ Inc | Religion-related | 501(c)(3) | 1997 | 2013-12 | ||
| Southport Sailing Foundation Inc | Recreation and sports | 501(c)(3) | 2003 | $0 | $0 | 2025-12 |
| Spanish for Connecticut Kids Inc | Education | 501(c)(3) | 2024 | |||
| Spiralis Music Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2004 | $264,566 | 2025-12 | |
| Sportsometry Inc | Medical research | 501(c)(3) | 2004 | $0 | $0 | 2025-12 |
| St Pius X Corporation | 501(c)(3) | 1946 | 2014-06 | |||
| St Thomas Aquinas Catholic School Inc | 501(c)(3) | 1946 | ||||
| St Thomas Church | 501(c)(3) | 1946 | 2014-06 | |||
| Staples Dance Booster Club Inc | Arts, culture and humanities | 501(c)(3) | 2025 | |||
| Stich Charitable Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2023 | $15.7 million | 2025-12 | |
| Stories Connect Fairfield County Inc | Education | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Stratfield Village Association Inc | Community improvement and capacity building | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Stratfield Vol F D Emergency Rescue 15 | Public safety, disaster preparedness and relief | 501(c)(3) | 2020 | $0 | $0 | 2023-04 |
| Studio Slew | Arts, culture and humanities | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Sulik Assistance Fund for Employees Inc | Human services | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Sunrise Meals | Food, agriculture and nutrition | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Support Athletes in Ludlowe Sailing | Recreation and sports | 501(c)(3) | 2026 | |||
| Support Lines Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Team Race Queen | Recreation and sports | 501(c)(3) | 2026 | |||
| The Bites Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2009 | $43,432 | 2025-12 | |
| The Church of Saint Anthony | 501(c)(3) | 1946 | 2013-06 | |||
| The Clifford Ray Foundation Inc | Recreation and sports | 501(c)(3) | 2026 | |||
| The Egerter Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2022 | $14.1 million | 2025-12 | |
| The Fairfield County Bar Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2008 | $0 | $0 | 2025-06 |
| The Fink Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2001 | $14.7 million | 2024-12 | |
| The Freedom Isnt Free Ride Foundation Inc | Public and societal benefit | 501(c)(3) | 2020 | $0 | $0 | 2024-12 |
| The Greater Fairfield Amateur Radio Association Inc | Education | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| The Living Well Ministries | Religion-related | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| The Mendelssohn Choir of Connecticut | Arts, culture and humanities | 501(c)(3) | 1987 | $0 | $0 | 2025-06 |
| The Mycorrhizal Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2026 | $739,412 | 2025-12 | |
| The Schechter Foundation | 501(c)(3) | 1983 | $216,146 | 2025-12 | ||
| The Victor Project Inc | Animal-related | 501(c)(3) | 2026 | |||
| The Zac Foundation for Childrens Safety | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2009 | $20.6 million | 2024-12 | |
| The@eileen A Delaney Margaret J Delaney James Delaney and Ellen | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2002 | $699,855 | 2025-12 | |
| Toastmasters International | 501(c)(3) | 1945 | $0 | $0 | 2025-12 | |
| Toastmasters International | 501(c)(3) | 1945 | $0 | $0 | 2025-12 | |
| Toastmasters International | 501(c)(3) | 1945 | $0 | $0 | 2024-12 | |
| Toastmasters International | 501(c)(3) | 1945 | $0 | $0 | 2023-12 | |
| Trinity Baptist Church | 501(c)(3) | 1972 | ||||
| Trischman Family Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2015 | $2.1 million | 2024-12 | |
| Trout Unlimited | 501(c)(3) | 1972 | $0 | $0 | 2026-03 | |
| Trustees of the Sigma Phi Society Williams College | Education | 501(c)(7) | 2013 | $0 | $0 | 2024-12 |
| Tucker Memorial Fund | Environment | 501(c)(3) | 2023 | $0 | $0 | 2025-09 |
| United States Power Squadrons | 501(c)(3) | 1967 | $0 | $0 | 2026-02 | |
| United With Kenya Inc | International, foreign affairs and national security | 501(c)(3) | 2011 | $0 | $0 | 2025-12 |
| VTB Wealth Foundation | Employment | 501(c)(3) | 2025 | |||
| Verbum Domini Inc | Religion-related | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Wandering Library Inc | Public and societal benefit | 501(c)(3) | 2024 | |||
| Water Innovations Alliance Foundation | Environment | 501(c)(3) | 2013 | $0 | $0 | 2025-12 |
| William H Prusoff Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2001 | $336,459 | 2025-12 | |
| Womens Perspective Inc | Community improvement and capacity building | 501(c)(3) | 2001 | $0 | $0 | 2024-12 |
| Yabantu Inc | Civil rights, social action and advocacy | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Yale Blue Green Inc | Environment | 501(c)(3) | 2025 | $0 | $0 | 2026-04 |
| Yellow Buterfly Charitable Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2018 | $1.2 million | 2024-12 | |
| Yoga 4 Everybody Healing Foundation | Health care | 501(c)(3) | 2026 | |||
| Zarich Family Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2022 | $194,655 | 2025-12 | |
| Zieff Family Fund Inc | 501(c)(3) | 1950 | $489,286 | 2025-12 |
By cause in Fairfield, CT
- Philanthropy, voluntarism and grantmaking foundations 51
- Recreation and sports 34
- Education 33
- Human services 33
- Arts, culture and humanities 27
- Religion-related 25
- Community improvement and capacity building 11
- Public and societal benefit 10
- Environment 9
- Diseases, disorders and medical disciplines 8
- Health care 8
- International, foreign affairs and national security 6
- Housing and shelter 6
- Youth development 6
- Animal-related 4
- Medical research 4
- Food, agriculture and nutrition 4
- Mental health and crisis intervention 4
- Mutual and membership 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.