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Data / Nonprofits / Connecticut / Willimantic

Nonprofits in Willimantic, CT: 85 registered with the IRS

85 nonprofits are registered with the IRS in Willimantic, CT, 69 of them 501(c)(3) charities; the 30 that report revenue took in $194.3 million. The largest by revenue: Windham Community Memorial Hospital Inc ($127.8 million), Generations Family Health Center Inc ($25.1 million), The Access Agency Inc ($13.4 million). Most common causes: religion-related (9), recreation and sports (7), arts, culture and humanities (7).

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Every organization, largest by revenue first

OrganizationCategoryTypeSinceRevenueAssetsFiling
Windham Community Memorial Hospital IncHealth care501(c)(3)1938$127.8 million$101.8 million2025-09
Generations Family Health Center IncHealth care501(c)(3)1992$25.1 million$27.2 million2025-06
The Access Agency Inc501(c)(3)1965$13.4 million$4.7 million2025-06
Project Genesis IncorporatedEmployment501(c)(3)1992$8.6 million$12.5 million2025-06
Windham Regional Community Council Inc501(c)(3)1976$3.6 million$1.7 million2025-06
Ecsu Foundation Inc501(c)(3)1972$2.8 million$28 million2025-06
Project Hope of Eastern CT IncHousing and shelter501(c)(3)2004$2.7 million$2.7 million2025-06
Covenant Soup Kitchen IncFood, agriculture and nutrition501(c)(3)2006$2.6 million$4.3 million2025-06
Companions & Homemakers By Nancy & Hazel IncHuman services501(c)(3)1992$1.3 million$783,4292025-09
The Williamantic Switchboard Fire Chiefs Association IncorporatedPublic safety, disaster preparedness and relief501(c)(3)1989$1.1 million$203,2352025-06
Sexual Assault Crisis Center of Eastern Connecticut Inc501(c)(3)1983$1 million$541,0472025-06
Windam Hospital Foundation IncHealth care501(c)(3)2006$1 million$7.7 million2025-09
Holy Family Home and Shelter IncHousing and shelter501(c)(3)1946$745,440$360,4942025-06
Eastern Connecticut Training School for FiremenEducation501(c)(3)1998$421,000$145,1802025-06
Access Senior Housing of Franklin IncHousing and shelter501(c)(3)2009$403,438$4 million2025-06
Benevolent & Protective Order of Elks of the USA501(c)(8)1951$333,725$876,6332025-03
Willimantic Housing CorporationHousing and shelter501(c)(3)2016$324,746$846,0992024-06
Caring Families Pregnancy Services Inc501(c)(3)1989$310,614$369,9012025-06
Storrs Cemetery Association IncMutual and membership benefit501(c)(13)2023$142,521$1.4 million2025-12
Windham Theatre Guild IncArts, culture and humanities501(c)(3)1988$116,616$39,9152025-05
Northeast Community Housing Corporation Inc501(c)(3)1981$96,039$118,1632024-12
Willimantic Renaissance IncRecreation and sports501(c)(3)2004$94,546$85,8282024-12
Windham Textile and History Museum IncArts, culture and humanities501(c)(3)1987$76,226$133,6282024-12
Gold Star Port No 1724 Veterans of Foreign Wars IncPublic and societal benefit501(c)(19)2024$61,887$423,8552025-12
Thread City Dance CoArts, culture and humanities501(c)(3)2018$55,887$9,7502025-12
Connecticut Association of Directors of Health Cadh IncHealth care501(c)(3)1998$43,221$170,0642026-06
International Association of Fire Fighters501(c)(5)1966$41,164$309,9402025-12
American Federation of TeachersEmployment501(c)(5)1967$34,141$34,1042025-06
Genesis Church IncReligion-related501(c)(3)2025$25,368$15,3502022-12
Northeast Connecticut Economic Alliance Inc501(c)(3)1992$14,504$415,0072025-06
Abundant Life Community Church501(c)(3)1989
American Federation of Teachers501(c)(5)$0$02025-06
Ancient Free & Accepted Masons of Connecticut501(c)(8)1943$0$02025-11
Ancient Free & Accepted Masons of Connecticut501(c)(8)1943$0$02024-12
Birthright of Windham Inc501(c)(3)1992$0$02025-12
Card Home for the Aged Inc501(c)(3)1945$1.8 million2025-09
Casa de Adoracion Y Restauracion WReligion-related501(c)(3)2016
Christian Life Assembly of God501(c)(3)19642013-12
Council for Christian Arts IncArts, culture and humanities501(c)(3)2014$0$02025-12
Ebenezer Evangelical Lutheran Church501(c)(3)1988
First Baptist Church501(c)(3)1955
Foundation for Campus Ministry Inc501(c)(3)1973$0$02026-05
Friends of the Willimantic Public LibraryEducation501(c)(3)2020$0$02025-08
Garden Club of WindhamRecreation and sports501(c)(3)2008$0$02026-04
Global Stem Partnership IncEducation501(c)(3)2024$0$02025-12
Grow Windham IncYouth development501(c)(3)2025$0$02025-12
Holy Trinity Orthodox Church501(c)(3)1972
Iglesia Bautista de WillimanticReligion-related501(c)(3)2002
Iglesia Cristo A Las PuertasReligion-related501(c)(3)2003
Iglesia Pentecostal Triunfo En La Fe501(c)(3)1981
Iglesia de Cristo Luz En Medio de Las Tinieblas IncReligion-related501(c)(3)2024
International Association of Lions Clubs501(c)(4)$0$02025-06
Knights of Columbus501(c)(8)1940$0$02025-12
Light On the Hill Christian Fellowship501(c)(3)19882013-12
Little League Baseball IncRecreation and sports501(c)(3)1981$0$02025-12
Masonic Charity & Educational Association Inc501(c)(2)1928$0$02025-06
Matthew 633 Food and TransportationFood, agriculture and nutrition501(c)(3)2026
National Spiritualist Association of Churches501(c)(3)1947
Oblate Fathers Immaculata Retreat House501(c)(3)19462001-12
Parents of ActEducation501(c)(3)2022$0$02026-06
Phi Delta Kappa International Inc501(c)(3)2012$0$02025-12
Psi Chi the National Honor Society in Psychology501(c)(3)1957$0$02025-06
Ragnorak Wrestling Club IncRecreation and sports501(c)(3)2022$0$02024-12
Royal Arch Masons of Connecticut501(c)(10)1969$0$02026-02
Royal and Select Masters of Connecticut501(c)(10)1972$0$02026-04
Scholarship America Inc501(c)(3)1962
Shalom ChaverimReligion-related501(c)(3)1996
Stanley Chapel A M E Zion ChurchReligion-related501(c)(3)2007
Sword in the Scroll Fencing Academy IncRecreation and sports501(c)(3)2016$0$02026-06
The Windham Historical Society501(c)(3)2021$0$02025-12
Thread City Development IncCommunity improvement and capacity building501(c)(3)2010$0$02025-12
United Assembly Christian Church John 8 32 IncReligion-related501(c)(3)1999
Uriel Temple CorpCommunity improvement and capacity building501(c)(2)2008$0$02025-12
Waim Windham Area Interfaith MinistryReligion-related501(c)(3)1985
Willimantic Camp Meeting Assoc Inc501(c)(3)1971
Willimantic Public ArtArts, culture and humanities501(c)(3)2021$0$02025-12
Windham Area Arts CollaborativeArts, culture and humanities501(c)(3)2001$0$02025-08
Windham High School Booster Club IncEducation501(c)(3)2014$0$02025-12
Windham Region Chamber of Commerce FoundationPublic and societal benefit501(c)(3)2020$0$02025-12
Windham Region Chamber of Commerce Foundation Inc501(c)(6)1981$0$02025-12
Windham Regional Arts Council IncArts, culture and humanities501(c)(3)1991$0$02025-08
Windham Regional Vocational Technical School Pfo IncEducation501(c)(3)2014$0$02025-07
Windham Whippet Athletics Foundatio N IncRecreation and sports501(c)(3)2025
Windham Youth Football and Cheerleading IncRecreation and sports501(c)(3)2023$0$02025-12
Womens Softball Association of Greater Willimantic Inc501(c)(4)1984$0$02025-12

By cause in Willimantic, CT

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.