Data / Nonprofits / Connecticut / Danbury
Nonprofits in Danbury, CT: 434 registered with the IRS
434 nonprofits are registered with the IRS in Danbury, CT, 325 of them 501(c)(3) charities; the 136 that report revenue took in $1.77 billion. The largest by revenue: Danbury Hospital ($943.2 million), Nuvance Health Medical Practice CT Inc ($456.6 million), Connecticut Institute for Communities Inc ($41.4 million). Most common causes: education (86), religion-related (43), recreation and sports (30).
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Every organization, largest by revenue first
| Organization | Category | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| Danbury Hospital | Health care | 501(c)(3) | 1946 | $943.2 million | $971.3 million | 2025-09 |
| Nuvance Health Medical Practice CT Inc | 501(c)(3) | 1987 | $456.6 million | $165.5 million | 2025-09 | |
| Connecticut Institute for Communities Inc | Community improvement and capacity building | 501(c)(3) | 2004 | $41.4 million | $30.2 million | 2024-12 |
| National Organization for Rare Disorders Inc | 501(c)(3) | 1989 | $34.6 million | $66.9 million | 2025-12 | |
| Danbury Hospital & New Milford Hospital Foundation Inc | Health care | 501(c)(3) | 1975 | $26.9 million | $202.6 million | 2025-09 |
| Family and Childrens Aid Inc | Human services | 501(c)(3) | 1973 | $23.7 million | $27.4 million | 2025-06 |
| Midwestern Connecticut Council of Alcoholism Inc | Mental health and crisis intervention | 501(c)(3) | 1973 | $21.5 million | $20.3 million | 2025-06 |
| Western Connecticut Health Network Affiliates Inc | 501(c)(3) | 1985 | $21.1 million | $19.8 million | 2025-09 | |
| Wooster School Corporation | 501(c)(3) | 1951 | $19.4 million | $20.5 million | 2025-06 | |
| Western Connecticut Home Care Inc | 501(c)(3) | 1966 | $18.5 million | $7.6 million | 2025-09 | |
| Western Connecticut Health Network Inc | 501(c)(3) | 1985 | $16.8 million | $829.5 million | 2025-09 | |
| Western Connecticut Health Network Investments LLC | 501(c)(3) | 2023 | $16.4 million | $404.9 million | 2025-09 | |
| Regional Hospice and Home Care of Western Connecticut Inc | Human services | 501(c)(3) | 1987 | $15 million | $15.9 million | 2025-06 |
| The Community Action Agency of Western Connecticut Inc | Community improvement and capacity building | 501(c)(3) | 1967 | $14.1 million | $4.9 million | 2025-12 |
| International Union of Journeymen & Allied Trades | 501(c)(5) | 1946 | $11.9 million | $14 million | 2024-12 | |
| Apex Community Care Inc | 501(c)(3) | 1989 | $8.8 million | $3.7 million | 2024-12 | |
| United Way of Coastal and Western Connecticut Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1942 | $8 million | $8.9 million | 2025-06 |
| Ridgewood Country Club Inc | 501(c)(7) | 1961 | $7.3 million | $10.8 million | 2024-12 | |
| Western Connecticut State University Foundation Inc | Education | 501(c)(3) | 1972 | $5.3 million | $45.3 million | 2026-06 |
| Society of Plastics Engineers Inc | Science and technology | 501(c)(3) | 1945 | $4.8 million | $7 million | 2024-12 |
| Clear Global Inc | Education | 501(c)(3) | 2011 | $4 million | $2.7 million | 2024-12 |
| Daily Bread - An Ecumenical Food Pantry Inc | Food, agriculture and nutrition | 501(c)(3) | 1991 | $3.8 million | $2 million | 2025-12 |
| The Center for Empowerment and Education Inc | 501(c)(3) | 1978 | $3.6 million | $7.4 million | 2025-06 | |
| Habitat for Humanity International Inc | 501(c)(3) | 1987 | $2.9 million | $4 million | 2025-06 | |
| Eastern College Athletic Conference Inc | Recreation and sports | 501(c)(3) | 2002 | $2.8 million | $1 million | 2025-06 |
| Danbury War Memorial Assoc Inc | Public and societal benefit | 501(c)(3) | 1955 | $2.4 million | $3.8 million | 2025-06 |
| Association of Religious Communities Inc | Human services | 501(c)(3) | 1976 | $2 million | $571,284 | 2025-06 |
| Service Professionals Independent Union Local 726 | Employment | 501(c)(5) | 2001 | $1.9 million | $7.8 million | 2025-09 |
| Philadelphia Pentecostal Church | 501(c)(3) | 1964 | $1.7 million | $3.9 million | 2025-12 | |
| Interfaith Social Action Corp Interfaith Day Care Center | Human services | 501(c)(3) | 1970 | $1.7 million | $3.4 million | 2025-12 |
| Jericho Partnership Inc | Community improvement and capacity building | 501(c)(3) | 2006 | $1.7 million | $923,882 | 2025-08 |
| Anns Place Inc | Human services | 501(c)(3) | 1992 | $1.6 million | $5.5 million | 2025-12 |
| Dha Housing Corp | 501(c)(3) | 1975 | $1.3 million | $1.2 million | 2024-12 | |
| Lake Waubeeka Assoc Inc | 501(c)(12) | 1962 | $1.2 million | $3.6 million | 2026-05 | |
| Danbury Grassroots Academy Inc | Education | 501(c)(3) | 2007 | $1.1 million | $2.5 million | 2025-12 |
| Families Network of Western Connecticut Inc | Human services | 501(c)(3) | 2003 | $1 million | $610,288 | 2025-06 |
| Hacd Corp | 501(c)(3) | 1993 | $1 million | $3.8 million | 2024-12 | |
| Danbury Volunteer Fire Battalion Thirty-One | Public safety, disaster preparedness and relief | 501(c)(3) | 2021 | $933,489 | $2 million | 2025-12 |
| Non Profit Rental Housing Corporation | Housing and shelter | 501(c)(3) | 1995 | $882,669 | $2.7 million | 2025-12 |
| Danbury Ski Club | Recreation and sports | 501(c)(7) | 2017 | $840,383 | $319,164 | 2026-04 |
| Connecticut Education Association | 501(c)(5) | 1971 | $838,259 | $480,767 | 2025-08 | |
| Corporate Angel Network Inc | Diseases, disorders and medical disciplines | 501(c)(3) | 1964 | $814,055 | $4.7 million | 2025-12 |
| Danbury Youth Services Inc | 501(c)(3) | 1972 | $744,380 | $341,963 | 2025-06 | |
| Danbury Cemetery Association Inc | 501(c)(13) | 1958 | $677,070 | $1.8 million | 2025-12 | |
| Greater Danbury Chamber of Commerce Inc | 501(c)(6) | 1943 | $631,072 | $527,881 | 2025-09 | |
| Portuguese Cultural Center Inc | Arts, culture and humanities | 501(c)(3) | 2001 | $597,465 | $2.9 million | 2024-06 |
| Danbury Police Athletic League Inc | Youth development | 501(c)(3) | 1985 | $548,495 | $1 million | 2025-06 |
| American Federation of Teachers | 501(c)(5) | 1967 | $544,094 | $140,150 | 2025-12 | |
| Family & Childrens Aid Supporting Foundation Inc | Human services | 501(c)(3) | 2003 | $537,871 | $9.1 million | 2024-12 |
| Teachers Unify To End Gun Violence Inc | Public safety, disaster preparedness and relief | 501(c)(3) | 2022 | $500,365 | $358,244 | 2025-06 |
| Cifc 120 Main Holding Corp | Community improvement and capacity building | 501(c)(2) | 2013 | $418,085 | $17.9 million | 2024-12 |
| Veterans of Foreign Wars of the United States Dept of Connecticut | 501(c)(19) | 1962 | $405,432 | $229,651 | 2026-06 | |
| Danbury Railway Museum Inc | Arts, culture and humanities | 501(c)(3) | 1995 | $334,997 | $697,350 | 2024-12 |
| Danbury Music Centre Inc | Arts, culture and humanities | 501(c)(3) | 1951 | $327,415 | $292,328 | 2025-05 |
| Foodnbev Connect Inc | Education | 501(c)(3) | 2020 | $318,885 | $25,424 | 2025-12 |
| Danbury Lodge No 1373 Loyal Order of Moose | Mutual and membership benefit | 501(c)(8) | 1935 | $306,649 | $835,584 | 2026-04 |
| Dorothy Day Hospitality House Inc | Housing and shelter | 501(c)(3) | 1984 | $288,751 | $801,127 | 2025-12 |
| Renewal House Inc | Housing and shelter | 501(c)(3) | 1993 | $280,316 | $342,416 | 2025-09 |
| Catholic War Veterans of the United States of America Inc | 501(c)(4) | 1972 | $266,255 | $201,592 | 2025-06 | |
| Musicals at Richter Inc | Arts, culture and humanities | 501(c)(3) | 1991 | $263,714 | $499,936 | 2025-10 |
| Amos House Inc | Housing and shelter | 501(c)(3) | 2025 | $260,557 | $383,461 | 2025-06 |
| Pop Warner Little Scholars Inc | Recreation and sports | 501(c)(3) | 1990 | $248,686 | $721,259 | 2025-12 |
| Danbury Youth Soccer Club Inc | Recreation and sports | 501(c)(3) | 2017 | $246,638 | $53,937 | 2025-07 |
| International Association of Fire Fighters | 501(c)(5) | 1940 | $244,351 | $303,523 | 2024-12 | |
| Usawct Inc | Recreation and sports | 501(c)(3) | 2004 | $237,299 | $80,092 | 2026-08 |
| Youre Just My Type Inc | 501(c)(3) | 2017 | $228,942 | $119,791 | 2025-12 | |
| Lva School Incorporated | Education | 501(c)(3) | 2004 | $221,384 | $85,142 | 2026-06 |
| Connecticut Alliance of City Police | Employment | 501(c)(5) | 2015 | $216,818 | $145,939 | 2024-12 |
| Ecuadorian Civic Center of Greater | 501(c)(3) | 2014 | $216,001 | $453,756 | 2024-12 | |
| Danbury Youth Baseball | Recreation and sports | 501(c)(3) | 2023 | $215,914 | $50,301 | 2025-12 |
| Cultural Alliance of Western Connecticut Inc | Arts, culture and humanities | 501(c)(3) | 2008 | $215,814 | $67,661 | 2024-12 |
| Danbury School & Business Collaborative | Education | 501(c)(3) | 2001 | $206,662 | $537,125 | 2025-06 |
| Connecticut Immigrant Center Inc | Crime and legal-related | 501(c)(3) | 2020 | $197,763 | $27,391 | 2024-12 |
| Bethel International Church | Religion-related | 501(c)(3) | 2019 | $190,536 | $59,845 | 2021-12 |
| The New American Dream Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2016 | $190,160 | $124,287 | 2025-12 |
| Friends of the Danbury Museum & Historical Society Authority Inc | Arts, culture and humanities | 501(c)(3) | 2010 | $186,144 | $28,117 | 2025-06 |
| Connecticut Youth Leadership Project Inc | Education | 501(c)(3) | 2004 | $180,807 | $165,775 | 2025-09 |
| Harambee Center Inc | Youth development | 501(c)(3) | 2023 | $167,180 | $5,538 | 2025-12 |
| Assembly of God Church Grace Ministry | Religion-related | 501(c)(3) | 2019 | $155,807 | $3,937 | 2024-12 |
| New England Collegiate Baseball League Inc | Recreation and sports | 501(c)(3) | 2001 | $150,234 | $13,807 | 2025-12 |
| Lebanon American Club of Danbury | Human services | 501(c)(4) | 2010 | $149,905 | $591,884 | 2025-12 |
| Housatonic Industrial Development Corp | 501(c)(4) | 1970 | $127,022 | $151,849 | 2024-09 | |
| New Fairfield Youth Basketball Inc | Recreation and sports | 501(c)(3) | 2019 | $124,966 | $61,288 | 2025-06 |
| Interfaith Aids Ministry of Greater Danbury Inc | Diseases, disorders and medical disciplines | 501(c)(3) | 1991 | $123,509 | $136,686 | 2025-06 |
| Five Ducks Foundation Inc | Youth development | 501(c)(3) | 2022 | $117,077 | $2,104 | 2025-12 |
| Western Connecticut State University Alumni Assoc Inc | Education | 501(c)(3) | 1993 | $115,069 | $435,416 | 2024-12 |
| The King Street Volunteer Fire Company Inc | 501(c)(4) | 1991 | $112,305 | $1 million | 2025-06 | |
| Wolverine Foundation Inc | Education | 501(c)(3) | 2012 | $109,351 | $220,432 | 2025-12 |
| Western Connecticut United Professionals | 501(c)(5) | 2016 | $108,307 | $145,637 | 2024-12 | |
| Danbury Yacht Club Inc | 501(c)(7) | 1960 | $108,297 | $653,988 | 2025-12 | |
| Business-Industry Foundation of Western Connecticut Inc | Community improvement and capacity building | 501(c)(3) | 2004 | $104,302 | $86,208 | 2025-09 |
| The Hord Foundation Inc | Education | 501(c)(3) | 1993 | $99,790 | $20,948 | 2025-09 |
| Ny CT Association of Tax Professionals Inc | 501(c)(6) | 1990 | $99,427 | $7,611 | 2025-06 | |
| Dream Come True of Western Connecticut Inc | Health care | 501(c)(3) | 1991 | $97,904 | $764,092 | 2025-06 |
| Professional Patient Advocates in Life Sciences Inc | Health care | 501(c)(3) | 2015 | $94,790 | $213,719 | 2025-12 |
| Allan Kardec Spiritist Center of Danbury Inc | Religion-related | 501(c)(3) | 2006 | $93,129 | $74,613 | 2025-12 |
| Hugz4haiti | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2011 | $92,753 | $15,379 | 2024-12 |
| Danbury Lodge No 120 of the Benevolent and Protective Order of | 501(c)(8) | 1951 | $91,488 | $1.4 million | 2025-03 | |
| Mill Plain Indepentdent Hose Co 12 | Public safety, disaster preparedness and relief | 501(c)(3) | 2013 | $90,992 | $428,532 | 2025-12 |
| Team Up Inc | Youth development | 501(c)(3) | 2020 | $84,451 | $8,270 | 2024-12 |
| Veterans K9equine Alliance Inc | Public and societal benefit | 501(c)(3) | 2024 | $83,973 | $83,567 | 2025-12 |
| Civil Service Employees Association | 501(c)(5) | 1970 | $79,365 | $39,502 | 2025-09 | |
| Hat City Music Theater Inc | Arts, culture and humanities | 501(c)(3) | 2002 | $78,623 | $131,302 | 2025-06 |
| Community of the Cross Ministries Inc | Religion-related | 501(c)(3) | 1978 | $74,749 | $86,055 | 2025-12 |
| City Center Danbury Events Inc | Arts, culture and humanities | 501(c)(3) | 1994 | $74,187 | $54,958 | 2025-03 |
| House of Grace Ministries Inc | Crime and legal-related | 501(c)(3) | 1999 | $73,671 | $298,037 | 2025-12 |
| Rotary International | 501(c)(4) | 1942 | $69,932 | $21,008 | 2025-06 | |
| Newtown Kennel Club Inc | Recreation and sports | 501(c)(7) | 2020 | $69,699 | $336,326 | 2025-12 |
| Sons of Italy in America | 501(c)(8) | 1941 | $69,389 | $163,627 | 2025-12 | |
| General Federation of Womens Clubs | 501(c)(3) | 1985 | $67,496 | $14,835 | 2026-05 | |
| Danbury Volunteer Fire Battalion Nineteen Inc | 501(c)(3) | 2022 | $60,911 | $1 | 2024-12 | |
| Olde Crabs Hockey Club Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2007 | $59,374 | $26,572 | 2024-12 |
| Knights of Columbus | 501(c)(8) | 1940 | $56,357 | $220,884 | 2024-12 | |
| Aunt Hack Swim Club Incorporated | 501(c)(7) | 1965 | $52,371 | $164,857 | 2024-12 | |
| Local 1622 of the Amalgamated Transit Union | Employment | 501(c)(5) | 2026 | $51,444 | $111,690 | 2024-06 |
| Danbury Connecticut Lions Charities Inc | 501(c)(3) | 1994 | $48,880 | $463,679 | 2025-06 | |
| Disabled American Veterans | Public and societal benefit | 501(c)(4) | 1942 | $44,914 | $49,506 | 2025-06 |
| Kevins Community Center | Health care | 501(c)(3) | 2003 | $41,959 | $599,851 | 2024-12 |
| Old Timers Athletic Association of Greater Danbury Inc | Education | 501(c)(3) | 1990 | $40,988 | $316,335 | 2025-12 |
| American Legion | 501(c)(19) | 1946 | $37,695 | $605,338 | 2025-12 | |
| CT Education Foundation Inc | Education | 501(c)(3) | 2024 | $35,578 | $15,071 | 2025-12 |
| Vision Project Inc | Arts, culture and humanities | 501(c)(3) | 2004 | $35,400 | $36,171 | 2025-12 |
| The Long Ridge Library Inc | Education | 501(c)(3) | 2022 | $34,800 | $357,920 | 2025-12 |
| Danbury Downtown Council Inc | 501(c)(4) | 1981 | $33,143 | $20,203 | 2025-07 | |
| Princess Ball | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2002 | $27,484 | $28,229 | 2025-06 |
| Ella Jewell Inc | Diseases, disorders and medical disciplines | 501(c)(3) | 2010 | $27,009 | $229,041 | 2024-12 |
| Greater Danbury Irish Cultural Foundation Inc | Arts, culture and humanities | 501(c)(3) | 2014 | $26,396 | $89,751 | 2025-12 |
| Danbury Police Benevolent Association Inc | 501(c)(9) | 1945 | $22,954 | $151,942 | 2025-12 | |
| Danbury Paid Fire Department Sickness and Surgical Fund Inc | Mutual and membership benefit | 501(c)(9) | 1964 | $20,768 | $221,309 | 2025-05 |
| Indian Association of Western Connecticut Inc | Arts, culture and humanities | 501(c)(3) | 2012 | $19,157 | $28,866 | 2025-09 |
| Ancient Free & Accepted Masons of Connecticut Union Lodge No 40 | 501(c)(10) | 2020 | $18,096 | $33,943 | 2025-12 | |
| Kick for Nick Foundation Inc | International, foreign affairs and national security | 501(c)(3) | 2008 | $11,138 | $63,000 | 2025-12 |
| Precision Gymnastics Parent Association Inc | 501(c)(3) | 2005 | $9,165 | $5,914 | 2025-08 | |
| Adoptive Parents Committee Inc | Human services | 501(c)(3) | 1966 | $18 | $3,786 | 2025-08 |
| 1 Freedom for All | Community improvement and capacity building | 501(c)(3) | 2018 | $0 | $0 | 2025-06 |
| 102D Infantry Regiment Association Inc | Public and societal benefit | 501(c)(19) | 1999 | $0 | $0 | 2025-12 |
| 38TH Regiment of Foot | Arts, culture and humanities | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| 41 Society Inc | Arts, culture and humanities | 501(c)(3) | 2017 | $59,038 | 2025-12 | |
| A & F Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2026 | $652,981 | 2023-12 | |
| Agbenyo Foundation Inc | Community improvement and capacity building | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Ais Pto | Education | 501(c)(3) | 2016 | $0 | $0 | 2026-06 |
| All Rise Inc | Health care | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Alliance for Connecticut Charter Schools Inc | Education | 501(c)(3) | 2025 | |||
| Alpha Epsilon Phi Epsilon Epsilon Chapter | Education | 501(c)(7) | 2011 | $0 | $0 | 2025-06 |
| Alpha Epsilon Phi Sorority | Education | 501(c)(7) | 2011 | $0 | $0 | 2025-07 |
| Alpha Epsilon Phi Sorority | Education | 501(c)(7) | 2011 | $0 | $0 | 2025-06 |
| Alpha Epsilon Phi Sorority | Education | 501(c)(7) | 2011 | $0 | $0 | 2025-07 |
| Alpha Epsilon Phi Sorority | Education | 501(c)(7) | 2011 | $0 | $0 | 2025-07 |
| Alpha Epsilon Phi Sorority | Education | 501(c)(7) | 2011 | $0 | $0 | 2025-07 |
| Alpha Epsilon Phi Sorority | Education | 501(c)(7) | 2011 | $0 | $0 | 2025-07 |
| Alpha Epsilon Phi Sorority | Education | 501(c)(7) | 2011 | $0 | $0 | 2025-07 |
| Alpha Epsilon Phi Sorority | Education | 501(c)(7) | 2011 | $0 | $0 | 2025-07 |
| Alpha Epsilon Phi Sorority | Education | 501(c)(7) | 2011 | $0 | $0 | 2025-07 |
| Alpha Epsilon Phi Sorority | Education | 501(c)(7) | 2011 | $0 | $0 | 2025-07 |
| Alpha Epsilon Phi Sorority | Education | 501(c)(7) | 2011 | $0 | $0 | 2025-07 |
| Alpha Epsilon Phi Sorority | Education | 501(c)(7) | 2011 | $0 | $0 | 2025-07 |
| Alpha Epsilon Phi Sorority | Education | 501(c)(7) | 2011 | $0 | $0 | 2025-07 |
| Alpha Epsilon Phi Sorority | Education | 501(c)(7) | 2011 | $0 | $0 | 2025-07 |
| Alpha Epsilon Phi Sorority | Education | 501(c)(7) | 2011 | $0 | $0 | 2025-07 |
| Alpha Epsilon Phi Sorority | Education | 501(c)(7) | 2011 | $0 | $0 | 2024-07 |
| Alpha Epsilon Phi Sorority | Education | 501(c)(7) | 2011 | $0 | $0 | 2025-07 |
| Alpha Epsilon Phi Sorority | Education | 501(c)(7) | 2011 | $0 | $0 | 2025-07 |
| Alpha Epsilon Phi Sorority | Education | 501(c)(7) | 2011 | $0 | $0 | 2025-07 |
| Alpha Epsilon Phi Sorority | Education | 501(c)(7) | 2011 | $0 | $0 | 2025-07 |
| Alpha Epsilon Phi Sorority | Education | 501(c)(7) | 2011 | $0 | $0 | 2025-07 |
| Alpha Epsilon Phi Sorority | Education | 501(c)(7) | 2011 | $0 | $0 | 2025-07 |
| Alpha Epsilon Phi Sorority | Education | 501(c)(7) | 2011 | $0 | $0 | 2025-07 |
| Alpha Epsilon Phi Sorority | Education | 501(c)(7) | 2011 | $0 | $189,532 | 2025-08 |
| Alpha Epsilon Phi Sorority | Education | 501(c)(7) | 2011 | $0 | $0 | 2025-07 |
| Alpha Epsilon Phi Sorority | Education | 501(c)(7) | 2011 | $0 | $0 | 2025-07 |
| Alpha Epsilon Phi Sorority | Education | 501(c)(7) | 2011 | $0 | $0 | 2025-07 |
| Alpha Epsilon Phi Sorority | Education | 501(c)(7) | 2011 | $0 | $0 | 2025-07 |
| Alpha Epsilon Phi Sorority | Education | 501(c)(7) | 2011 | $0 | $0 | 2025-07 |
| Alpha Epsilon Phi Sorority | Education | 501(c)(7) | 2011 | $0 | $0 | 2025-07 |
| Alpha Epsilon Phi Sorority | Education | 501(c)(7) | 2011 | $0 | $0 | 2025-07 |
| Alpha Epsilon Phi Sorority | Education | 501(c)(7) | 2011 | $0 | $0 | 2025-07 |
| Alpha Epsilon Phi Sorority | Education | 501(c)(7) | 2011 | $0 | $0 | 2025-07 |
| Alpha Epsilon Phi Sorority | Education | 501(c)(7) | 2011 | $0 | $0 | 2025-07 |
| Alpha Epsilon Phi Sorority | Education | 501(c)(7) | 2011 | $0 | $0 | 2025-07 |
| Alpha Epsilon Phi Sorority | Education | 501(c)(7) | 2011 | $0 | $0 | 2025-07 |
| Alpha Epsilon Phi Sorority | Education | 501(c)(7) | 2011 | $0 | $0 | 2025-07 |
| Alpha Epsilon Phi Sorority | Education | 501(c)(7) | 2011 | $0 | $0 | 2025-07 |
| Alpha Epsilon Phi Sorority | Education | 501(c)(7) | 2011 | |||
| Alpha Epsilon Phi Sorority Inc | Education | 501(c)(7) | 2011 | $0 | $1.3 million | 2025-07 |
| Alpha Epsilon Phi Sorority Pi CHPTR | Education | 501(c)(7) | 2011 | $0 | $829 | 2025-06 |
| American Association of University Women Inc | Education | 501(c)(4) | 2010 | $0 | $0 | 2026-06 |
| American Indian Achievement Fund Inc | Education | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| American Society of Heating Refrigerating & A-C Engineers | 501(c)(3) | $0 | $0 | 2025-06 | ||
| American Youth Football Inc | Recreation and sports | 501(c)(3) | 2005 | $0 | $0 | 2025-12 |
| Ancient Free & Accepted Masons of Connecticut | 501(c)(10) | 1943 | $0 | $0 | 2025-12 | |
| Ancient Order of Hibernians in America | 501(c)(8) | 1945 | $0 | $0 | 2025-12 | |
| Annual Multicultural Business Youth Educational Services | 501(c)(3) | 1987 | $0 | $0 | 2025-12 | |
| Area - Agape Real Estate Associates Inc | Housing and shelter | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Assumption Greek Orthodox Church of Danbury Connecticut Inc | Religion-related | 501(c)(3) | 2022 | |||
| Athletes of Christ | Religion-related | 501(c)(3) | 2018 | $0 | $0 | 2025-08 |
| B J Bertram Foundation Incorporated | 501(c)(3) | 1988 | $702,099 | 2024-12 | ||
| Baitul Mukarram Masjid of Greater Danbury Incorporated | Religion-related | 501(c)(3) | 2013 | |||
| Barden Foundation Inc | 501(c)(3) | 1961 | $4.8 million | 2025-10 | ||
| Being Joyfully You Inc | Religion-related | 501(c)(3) | 2026 | |||
| Bellas Hope Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Berni & Murcer Inc | Health care | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Bioplastics and Renewable Technologies Division of Society O | Science and technology | 501(c)(3) | 2025 | |||
| Birthright of Greater Danbury Incorporated | Human services | 501(c)(3) | 1996 | $0 | $0 | 2026-04 |
| Broadview Middle School Pto | Education | 501(c)(3) | 2017 | $0 | $0 | 2026-06 |
| Building the Rainbow | Human services | 501(c)(3) | 2026 | |||
| CBC Wolfpack Amateur Boxing Team Inc | Recreation and sports | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| CS Boundless Animal Rescue Inc | Animal-related | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| CT Association of Youth Leaders for Christ | Religion-related | 501(c)(3) | 2026 | |||
| CT Pride Sports | Recreation and sports | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| CT Rebels of 76 Fife & Drum Corps | Arts, culture and humanities | 501(c)(3) | 2022 | $3,232 | 2025-12 | |
| Cambodian New Life Evangelical Church | 501(c)(3) | 1991 | ||||
| Candis Critters Co | Animal-related | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Carter L Marshall Lodge and Jennie Bryant Temple JMT | Public and societal benefit | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Catholics for Family and Life Connecticut | Religion-related | 501(c)(3) | 2019 | $0 | $0 | 2024-12 |
| Central Christian Church | 501(c)(3) | 1955 | ||||
| Centro de Luz Y Adoracion Cla Church Inc | Religion-related | 501(c)(3) | 2022 | |||
| Chabad of Greater Danbury Inc | Religion-related | 501(c)(3) | 2003 | |||
| Change Up Inc | Youth development | 501(c)(3) | 2025 | |||
| Chateau D Espoir Inc | Youth development | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Chelseas Charity | Arts, culture and humanities | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Christ Church of Connecticut Inc | 501(c)(3) | 1993 | ||||
| Christ Mission International Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2004 | $0 | $0 | 2025-12 |
| Christ the Shepherd Church | 501(c)(3) | 1974 | 2012-12 | |||
| Christian Community Church of Danbury | 501(c)(3) | 1974 | ||||
| Christian Congregation in the United States | 501(c)(3) | 1968 | ||||
| Christian Congregation in the United States | 501(c)(3) | 1968 | ||||
| Christian Corners Ministries Inc | Religion-related | 501(c)(3) | 2022 | |||
| Cifc Ehb Holding Corp | Community improvement and capacity building | 501(c)(2) | 2019 | $0 | $1.4 million | 2024-12 |
| Cifc Sa Holding Corp | Human services | 501(c)(2) | 2021 | $0 | $1 | 2024-12 |
| Cifc Ysf Holding Corp | Community improvement and capacity building | 501(c)(2) | 2011 | $0 | $2.4 million | 2024-12 |
| Colonial Hills Baptist Church | 501(c)(3) | 1979 | ||||
| Comunidade Evangelica Ebenezer | Religion-related | 501(c)(3) | 2014 | |||
| Connectcare Community Center Inc | Health care | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Connecticut Education Association | 501(c)(5) | 1971 | $0 | $0 | 2025-06 | |
| Connecticut Institute Foundation Inc | Public and societal benefit | 501(c)(3) | 2021 | $0 | $30,846 | 2024-12 |
| Connecticut Lions Charities Inc | Community improvement and capacity building | 501(c)(3) | 2015 | $0 | $0 | 2025-06 |
| Connecticut Now Inc | Civil rights, social action and advocacy | 501(c)(4) | 2026 | $0 | $0 | 2025-12 |
| Connecticut Sarang Presbyterian Church | 501(c)(3) | 1991 | ||||
| Connecticut State Missionary Baptist Convention Inc | Religion-related | 501(c)(3) | 1995 | |||
| Connecticut Wrestling Inc | Recreation and sports | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Corawill Inc | Community improvement and capacity building | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Danbury Adult Mens Baseball | Recreation and sports | 501(c)(3) | 2026 | |||
| Danbury Band Aids Inc | Education | 501(c)(3) | 1993 | $0 | $0 | 2025-08 |
| Danbury Chapter No 314 Women of the Moose | 501(c)(8) | 1940 | $0 | $0 | 2026-04 | |
| Danbury Chinese Alliance Church | 501(c)(3) | 1986 | ||||
| Danbury Concert Association Inc | Arts, culture and humanities | 501(c)(3) | 2016 | $0 | $0 | 2026-06 |
| Danbury Cricket Community Inc | Recreation and sports | 501(c)(3) | 2026 | |||
| Danbury Family Learning Center Inc | Human services | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Danbury Fire Explorers Inc | 501(c)(3) | 2026 | ||||
| Danbury Fish and Game Association Incorporated | Recreation and sports | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Danbury Hackerspace Inc | Arts, culture and humanities | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Danbury Hat Tricks Booster Club Company | Recreation and sports | 501(c)(3) | 2025 | |||
| Danbury Helping Hand Fund Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1991 | $0 | $0 | 2025-12 |
| Danbury High School Athletic Hall of Fame Inc | Education | 501(c)(3) | 2014 | $0 | $0 | 2025-06 |
| Danbury High School Pto | Education | 501(c)(3) | 2016 | $0 | $0 | 2025-06 |
| Danbury Law Enforcement Cadets Inc | Public safety, disaster preparedness and relief | 501(c)(3) | 2023 | $0 | $0 | 2023-12 |
| Danbury Portuguese Seventh-Day Church | 501(c)(3) | 1947 | ||||
| Danbury Robotics | Education | 501(c)(3) | 2021 | $0 | $0 | 2024-12 |
| Danbury Rugby Football Club | Recreation and sports | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Danbury Schools Administrators Association | Education | 501(c)(5) | 2024 | $0 | $0 | 2025-12 |
| Danbury Speedskating Club Inc | Recreation and sports | 501(c)(3) | 2007 | $0 | $0 | 2025-05 |
| Danbury Volunteer Firemens Association | Public safety, disaster preparedness and relief | 501(c)(3) | 2016 | $0 | $0 | 2026-06 |
| Danbury Youth Wrestling Inc | 501(c)(4) | 1989 | $0 | $0 | 2026-03 | |
| Danbury-Vita Inc | Human services | 501(c)(3) | 2011 | $0 | $0 | 2025-12 |
| Design Leadership Foundation Inc | Education | 501(c)(3) | 2021 | $269,271 | 2024-12 | |
| Dominican Community Center | Community improvement and capacity building | 501(c)(3) | 2020 | 2024-12 | ||
| Dorchester Portuguese Seventh-Day Adventist Church | 501(c)(3) | 1947 | ||||
| Ec Soccer Danbury Corp | Recreation and sports | 501(c)(3) | 2025 | $0 | $1 | 2025-12 |
| El Manto de Alabanza Iglesia de Dios | 501(c)(3) | 1972 | ||||
| Empowered Fathers in Action Inc | Youth development | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Eternal Light Fellowship | 501(c)(3) | 1971 | ||||
| Faith Capital of the World | 501(c)(3) | 1987 | ||||
| Family Love Ministeries Outreach Inc | 501(c)(3) | 1993 | ||||
| Federal Correctional Institution Employees Club | Recreation and sports | 501(c)(4) | 1999 | $0 | $0 | 2025-12 |
| Firm Foundation Minstries Inc | Religion-related | 501(c)(3) | 2001 | |||
| Fraternal Order of Police | 501(c)(8) | 1952 | $0 | $0 | 2025-06 | |
| French Speaking Baptist Church of Danbury | Religion-related | 501(c)(3) | 1999 | |||
| Friends of Richter | Recreation and sports | 501(c)(3) | 2010 | $0 | $0 | 2025-12 |
| Friends of Tarrywile Park Inc | 501(c)(3) | 1993 | $0 | $0 | 2025-06 | |
| Friends of the Danbury Library Inc | 501(c)(3) | 1978 | $3.4 million | 2025-06 | ||
| Gaffa USA Inc | Diseases, disorders and medical disciplines | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Gardner Ministries Victory Christian Center Inc | 501(c)(3) | 1985 | ||||
| Gathering Community Church | Religion-related | 501(c)(3) | 2021 | |||
| Gethsemane Batist Church International | Religion-related | 501(c)(3) | 2012 | |||
| Global Action Network Inc | Community improvement and capacity building | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Great Commission Church Inc | Religion-related | 501(c)(3) | 2021 | |||
| Great Plain School Parent Teacher Organization | Education | 501(c)(3) | 2017 | $0 | $0 | 2025-06 |
| Greater Danbury Catholic Elementary School System Region IX | 501(c)(3) | 1993 | ||||
| Greater Danbury Services | Human services | 501(c)(3) | 2024 | $0 | $0 | 2024-12 |
| Greater Ny-Ct Jewish Center Inc | Religion-related | 501(c)(3) | 2020 | |||
| Guideposts A Church Corporation | Religion-related | 501(c)(3) | 1975 | 2025-06 | ||
| Guideposts Foundation Inc | Religion-related | 501(c)(3) | 2006 | |||
| H E L P for Pets Inc | Animal-related | 501(c)(3) | 1990 | $0 | $0 | 2025-12 |
| HD360 - Haiti Diaspora 360 Inc | 501(c)(3) | 2022 | $0 | $0 | 2025-12 | |
| HPG of Greater Danbury Inc | Religion-related | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Hat City Church Co | Religion-related | 501(c)(3) | 2024 | |||
| Hat City Communities Inc | Housing and shelter | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Hayestown Avenue Pto | Education | 501(c)(3) | 2014 | $0 | $0 | 2024-06 |
| Hdosi Employees Activities Association | 501(c)(4) | 1991 | $0 | $0 | 2024-12 | |
| Helping Hearts Inc | Human services | 501(c)(3) | 2023 | $0 | $0 | 2023-12 |
| Hero Project Inc | Mental health and crisis intervention | 501(c)(3) | 2017 | $0 | $0 | 2023-05 |
| Higher Ground Ministries Inc | Religion-related | 501(c)(3) | 2007 | |||
| Holy Trinity Orthodox Church of Danbury Inc | Religion-related | 501(c)(3) | 1996 | |||
| Hopebutterfly Inc | Human services | 501(c)(3) | 2018 | $0 | $0 | 2024-12 |
| Huaxia Chinese School Connecticut Inc | Education | 501(c)(3) | 2006 | $0 | $0 | 2025-07 |
| Hungarian-American Club of Danbury Inc | 501(c)(7) | 1976 | $0 | $0 | 2025-12 | |
| Iglesia Cristiana Y Misionera Cristo La Roca | 501(c)(3) | 1972 | ||||
| Iglesia Jesus Es El Camino Inc | Religion-related | 501(c)(3) | 2002 | |||
| Iglesia Jesus Fuente de Agua Viva Inc | Religion-related | 501(c)(3) | 2010 | |||
| Igreja Do Avivamento Mundial Em Danbury Inc | Religion-related | 501(c)(3) | 2008 | |||
| Immaculate Heart of Mary Parish | 501(c)(3) | 1946 | ||||
| Immaculate High School | 501(c)(3) | 1946 | ||||
| Immanuel Lutheran Church | 501(c)(3) | 1941 | 1996-12 | |||
| International Association of Lions Clubs | 501(c)(4) | 1940 | $0 | $0 | 2025-06 | |
| International Pentecostal Church of Christ Inc | 501(c)(3) | 1977 | ||||
| International Worship Center | Religion-related | 501(c)(3) | 2018 | |||
| Ipul Danbury Inc | Religion-related | 501(c)(3) | 2026 | |||
| Isaiah One-7teen | Human services | 501(c)(3) | 2026 | |||
| Islamic Recovery | Mental health and crisis intervention | 501(c)(3) | 2024 | $0 | $0 | 2024-01 |
| Islamic Society of Greater Danbury | 501(c)(3) | 1984 | ||||
| Islamic Society of Western Connecticut | Religion-related | 501(c)(3) | 1995 | |||
| Ives Trail and Greenway Regional Association | Environment | 501(c)(3) | 2016 | $0 | $0 | 2026-07 |
| JMR Foundation for Social Justice Diversity and Inclusion Inc | Youth development | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| JRV Private Foundation | Religion-related | 501(c)(3) | 2024 | |||
| John A and Catherine S Fegley Fam Charitable Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2022 | $559,801 | 2025-12 | |
| Jumy Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2014 | $1.9 million | 2025-12 | |
| Keen Visionct Inc | Recreation and sports | 501(c)(3) | 2025 | |||
| King Street School Parent Teacher Organization | Education | 501(c)(3) | 2023 | $0 | $0 | 2026-06 |
| Kingdom Way Pentecostal Church | Religion-related | 501(c)(3) | 1964 | |||
| Kiwanis Club Foundation of Greater Danbury Inc | Youth development | 501(c)(3) | 2021 | $0 | $0 | 2025-09 |
| Landon Jack Verissimo Santos Memorial Scholarship Inc | Education | 501(c)(3) | 2019 | $0 | $0 | 2024-12 |
| Laurel Ridge Skating Club Inc | Recreation and sports | 501(c)(3) | 2026 | |||
| Lead Nexus | Education | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Leaders for Educational Advocay and Diversity | Community improvement and capacity building | 501(c)(3) | 2026 | |||
| League of Women Voters of Connecticut Inc | 501(c)(4) | 1964 | $0 | $0 | 2025-06 | |
| Lifted Hands Music | Religion-related | 501(c)(3) | 2024 | $0 | $0 | 2024-12 |
| Luz Y Vida Inc | Human services | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Magaro Family Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2015 | $27.1 million | 2024-12 | |
| Mamba Gamechangerz | Recreation and sports | 501(c)(3) | 2026 | |||
| Maranatha Foundation Inc | Housing and shelter | 501(c)(3) | 1999 | $3.9 million | 2025-12 | |
| Mercy Temple Church of Christ | 501(c)(3) | 1980 | ||||
| Mesarg Educational Trust | Education | 501(c)(3) | 2003 | $588,382 | 2025-12 | |
| Mexican Cultural Center | Arts, culture and humanities | 501(c)(3) | 2024 | $0 | $0 | 2025-07 |
| Mi Casa Es Su Casa Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Mika B Empire Resource Network Inc | Human services | 501(c)(3) | 2024 | |||
| Mill Ridge Primary School Pto | Education | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Miss & Teen Ambassadors | Youth development | 501(c)(3) | 2025 | |||
| Montessori Schools of Connecticut | Education | 501(c)(3) | 2022 | $0 | $0 | 2026-06 |
| Mosaic Coalition | 501(c)(3) | 2024 | $0 | $0 | 2025-12 | |
| National Air Traffic Controllers Association | 501(c)(5) | 1990 | $0 | $0 | 2025-12 | |
| National Association of Postal Supv BR 47 | Employment | 501(c)(5) | 2014 | $0 | $0 | 2024-12 |
| National Corvette Restorers Society Inc | 501(c)(7) | 1991 | $0 | $0 | 2025-12 | |
| National Exchange Club | 501(c)(4) | 1950 | $0 | $0 | 2025-06 | |
| National Society of the Daughters of the American Revolution | 501(c)(3) | 1949 | $0 | $0 | 2026-02 | |
| Nave International Ministries | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| New Hope Baptist Church | Religion-related | 501(c)(3) | 2004 | |||
| Nyr Jorvik Vikings | Arts, culture and humanities | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Off-Beat Players Inc | Arts, culture and humanities | 501(c)(3) | 2008 | $0 | $0 | 2025-12 |
| Orderup Inc | Employment | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Organizacion Esperanza | Arts, culture and humanities | 501(c)(3) | 2023 | $1 | 2024-12 | |
| Our Lady of Guadalupe Roman Catholic Church Corporation | 501(c)(3) | 1946 | 2014-06 | |||
| PTC All-Star Cheerleading Booster Club Corp | Recreation and sports | 501(c)(3) | 2025 | |||
| Padanaram Hose Company No 3 Inc | Public safety, disaster preparedness and relief | 501(c)(3) | 2017 | $0 | $0 | 2024-06 |
| Partneredu Inc | Education | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Pawtucket Portuguese Seventh-Day Adventist Church | 501(c)(3) | 1947 | ||||
| Pembroke School Pto | Education | 501(c)(3) | 2005 | $0 | $0 | 2024-07 |
| Pocono Point Association Inc | Recreation and sports | 501(c)(7) | 2006 | $0 | $0 | 2025-12 |
| Positive Thinking Foundation Inc | Education | 501(c)(3) | 1993 | $0 | $0 | 2024-06 |
| Prayer Palace Inspirational Church | 501(c)(3) | 1992 | ||||
| Prime Timers Inc | Human services | 501(c)(3) | 1998 | $0 | $0 | 2026-04 |
| Primera Iglesia Bautista Hispana de Danbury | Religion-related | 501(c)(3) | 2014 | |||
| Psi Chi the National Honor Society in Psychology | 501(c)(3) | 1972 | $0 | $0 | 2025-06 | |
| Putnam County Temple & Jewish Center Inc | 501(c)(3) | 1988 | ||||
| Puzzles Inc | Human services | 501(c)(3) | 2026 | |||
| RDM 2 Corazon de Leon Inc | Religion-related | 501(c)(3) | 2025 | |||
| RPMS Meal Train | Food, agriculture and nutrition | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Reach Empowerment Inc | Human services | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Real Life | 501(c)(3) | 1963 | ||||
| Rhyomai Ministries Inc | Religion-related | 501(c)(3) | 2026 | |||
| Ridgefield Ladies Golf Association | Mutual and membership benefit | 501(c)(7) | 2014 | $0 | $0 | 2025-12 |
| Ridgefield Post 78 American Legionbaseball | Recreation and sports | 501(c)(3) | 2007 | $0 | $0 | 2025-12 |
| Rizzo Family Foundation | Arts, culture and humanities | 501(c)(3) | 2024 | $62,441 | 2025-12 | |
| SGS Alumni Foundation Inc | Education | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Sacred Heart of Jesus Church R C | 501(c)(3) | 1946 | ||||
| Saint Peter School Inc | 501(c)(3) | 1946 | ||||
| Salt & Light Ministries Inc | Religion-related | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Savings Bank of Danbury Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2004 | $3.4 million | 2025-12 | |
| Scions of the 17TH Airborne Division | Public and societal benefit | 501(c)(3) | 2014 | $0 | $0 | 2025-10 |
| Scuba Dot Tech Incorporated | Science and technology | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Seventh Day Adventists | 501(c)(3) | 1947 | ||||
| Shelter Rock Pto | Education | 501(c)(3) | 2019 | $0 | $0 | 2025-06 |
| Sigma Delta Tau Society | Education | 501(c)(7) | 1948 | $0 | $0 | 2025-06 |
| Sigma Theta Tau Inc | 501(c)(3) | 1954 | $0 | $0 | 2026-06 | |
| Smjo Inc | Education | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Society of Plactic Engineers | 501(c)(3) | 1945 | $0 | $0 | 2025-12 | |
| Society of Plastics Engineers | Science and technology | 501(c)(3) | 1945 | $0 | $0 | 2025-06 |
| Society of Plastics Engineers | Science and technology | 501(c)(3) | 1945 | $0 | $0 | 2025-06 |
| Society of Plastics Engineers | 501(c)(3) | 1945 | $0 | $0 | 2023-06 | |
| South Street Elementary School Pto | Education | 501(c)(3) | 2022 | $0 | $0 | 2025-11 |
| St Gregory the Great Roman Catholic Church | 501(c)(3) | 1946 | ||||
| St Gregory the Great School Inc | 501(c)(3) | 1946 | ||||
| St James African Methodist Episcopal Church of Danbury CT Inc | 501(c)(3) | 1981 | ||||
| St Joseph School Danbury Inc | 501(c)(3) | 1946 | ||||
| St Josephs Church Danbury | 501(c)(3) | 1946 | 2012-06 | |||
| St Peters Corporate Society | 501(c)(3) | 1946 | 2014-06 | |||
| Stadley Rough Parent-Teachers Organization | Education | 501(c)(3) | 2017 | $0 | $0 | 2025-06 |
| Stanley L Richter Association for the Arts Inc | 501(c)(3) | 1971 | $0 | $0 | 2026-05 | |
| Stevek Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2004 | $10,668 | 2025-12 | |
| Structural Engineers Association of Connecticut | Science and technology | 501(c)(6) | 2023 | $0 | $0 | 2025-06 |
| Susan John Memorial Foundation for Cancer Cure | Medical research | 501(c)(3) | 2010 | $0 | $0 | 2024-12 |
| The Brightstar Foundation LTD | Education | 501(c)(3) | 2003 | $0 | $0 | 2024-12 |
| The Danbury Exchange Club Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2007 | $0 | $0 | 2024-06 |
| The General Council of the Philadelphia Churches | Religion-related | 501(c)(3) | 2011 | |||
| The Iota Eta Chapter of the Sigma C Hi Fraternity | Education | 501(c)(7) | 2019 | $0 | $0 | 2026-07 |
| The Society of the Hawley Family | Recreation and sports | 501(c)(7) | 2026 | |||
| Trinity Christian Tabernacle Church Inc | 501(c)(3) | 1988 | 2002-12 | |||
| Unify Soccer Club Inc | Human services | 501(c)(3) | 2022 | $0 | $0 | 2023-12 |
| Union Ecuatoriana de Norteamerica Inc | Community improvement and capacity building | 501(c)(3) | 2024 | |||
| Union Savings Bank Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1998 | $14.1 million | 2025-12 | |
| Unitarian Universalist Society of | 501(c)(3) | 1992 | ||||
| United States Bowling Congress Inc | Recreation and sports | 501(c)(3) | 2004 | $0 | $0 | 2022-07 |
| VFW Auxiliary Department of Connecticut Inc | Public and societal benefit | 501(c)(19) | 2009 | $0 | $0 | 2026-06 |
| Veterans & 1St Responders of Americ A Inc | Public and societal benefit | 501(c)(3) | 2026 | |||
| Viva Voce Ministries Inc | 501(c)(3) | 1992 | ||||
| We Are Women Rising Inc | Civil rights, social action and advocacy | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Weller Foundation Inc Formerly Vitramon Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1995 | $2.4 million | 2025-12 | |
| Westchester Radio Aero Modelers Inc | 501(c)(7) | 1972 | $0 | $0 | 2026-04 | |
| Wheelpassion | Health care | 501(c)(3) | 2019 | $0 | $0 | 2026-06 |
| Words of Life Ministries | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2006 | |||
| Wsmsa Pto | 501(c)(3) | 2017 | $0 | $0 | 2026-06 | |
| Youth Fighting Forward Danbury Inc | Youth development | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Zion Pentecostal Church | Religion-related | 501(c)(3) | 2003 | |||
| Masonic Temple Association of Danbury Connecticut | 501(c)(2) | 1978 | $-3,350 | $728,684 | 2025-11 | |
| Cifc Elp Holding Corp | Community improvement and capacity building | 501(c)(2) | 2014 | $-9,745 | $1.3 million | 2024-12 |
By cause in Danbury, CT
- Education 86
- Religion-related 43
- Recreation and sports 30
- Human services 24
- Arts, culture and humanities 22
- Philanthropy, voluntarism and grantmaking foundations 20
- Community improvement and capacity building 16
- Youth development 11
- Public and societal benefit 9
- Health care 9
- Housing and shelter 7
- Science and technology 6
- Public safety, disaster preparedness and relief 6
- Employment 5
- Diseases, disorders and medical disciplines 4
- Mutual and membership benefit 3
- Mental health and crisis intervention 3
- Animal-related 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.