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Data / Nonprofits / Connecticut / Watertown

Nonprofits in Watertown, CT: 73 registered with the IRS

73 nonprofits are registered with the IRS in Watertown, CT, 55 of them 501(c)(3) charities; the 33 that report revenue took in $154.3 million. The largest by revenue: Taft School Corporation ($122.8 million), Sentinel Charitable Alliance Inc ($22.8 million), Watertown Golf Club Incorporated ($2.5 million). Most common causes: philanthropy, voluntarism and grantmaking foundations (8), recreation and sports (7), human services (7).

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Every organization, largest by revenue first

OrganizationCategoryTypeSinceRevenueAssetsFiling
Taft School CorporationEducation501(c)(3)1990$122.8 million$530.6 million2025-06
Sentinel Charitable Alliance IncHuman services501(c)(3)2024$22.8 million$25.3 million2025-06
Watertown Golf Club Incorporated501(c)(7)$2.5 million$2.2 million2025-12
Western Connecticut Coalition IncCommunity improvement and capacity building501(c)(3)1994$1.9 million$1 million2025-06
Watertown Library AssociationEducation501(c)(3)1988$898,457$2.1 million2025-06
Connecticut Lions Eye Research Foundation Inc501(c)(3)1957$677,147$3.4 million2025-06
Kangaroos Korner IncHealth care501(c)(3)1997$569,846$34,8742025-06
Watertown Foundation IncPhilanthropy, voluntarism and grantmaking foundations501(c)(3)1944$427,490$6 million2025-08
Watertown Fire Department IncPublic safety, disaster preparedness and relief501(c)(4)2006$229,611$301,5182025-11
Headmasters AssociationCommunity improvement and capacity building501(c)(4)2002$212,216$171,4342025-09
Oakville-Watertown Youth Athletic AssociationRecreation and sports501(c)(3)2023$207,357$42,2702024-12
Watertown Association for Youth Soccer Inc501(c)(3)1981$184,257$130,3042025-12
Joe Garassino Foundation IncPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2013$122,770$502,3602024-12
Sun Moon & Stars IncEducation501(c)(3)2018$106,580$12,7332025-12
Veterans of Foreign Wars of the United States Dept of Connecticut501(c)(19)1962$92,179$107,6122025-06
Historical Society Inc Watertown501(c)(3)1968$89,617$797,2332025-08
American Legion501(c)(19)1946$78,812$41,2562025-12
Connecticut Classic IncArts, culture and humanities501(c)(3)2015$63,878$10,9842025-12
Little League Baseball IncRecreation and sports501(c)(3)1967$62,561$47,5812024-09
Evergreen Cemetery Association501(c)(13)1943$57,490$131,6432025-03
Bridge To Cure IncPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2018$42,796$5,2692025-12
Pink Chair Project IncPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2018$36,287$100,6732025-12
Rotary Club of Watertown Connecticut Foundation IncEducation501(c)(3)1995$35,807$338,6362025-06
Buddhist Kung Fu Meditation Centre of USA IncReligion-related501(c)(3)2019$33,185$18,2642025-12
Judson School Parent Teacher Organization IncEducation501(c)(3)2019$32,096$33,8752025-06
Watertown Lions Foundation IncPhilanthropy, voluntarism and grantmaking foundations501(c)(3)1996$28,067$47,1982025-06
Watertown Land Trust Inc501(c)(3)1974$25,685$2.2 million2024-12
Watertown Police DepartmentPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2015$19,680$20,5852025-12
Friends of the Watertown Library Association Inc501(c)(3)1990$19,527$17,8032026-06
Jesus Is the Way the Truth and the Life IncReligion-related501(c)(3)2018$19,190$1,8942025-12
Watertown Police Benevolent Association IncEmployment501(c)(4)1999$14,610$60,3572025-12
International Association of Lions Clubs501(c)(4)1969$8,079$6,8792025-06
Horatio S Heroes IncPublic and societal benefit501(c)(3)2024$2,313$1,5832024-12
American Federation of State County & Municipal EmployeesEmployment501(c)(5)1957$0$02025-12
American Legion Auxiliary Oakville Unit 195 Department of Connecticut501(c)(3)2016$0$02024-12
Blue Sheep CompanyHuman services501(c)(3)2026$0$02025-12
Branchville Civic Association IncRecreation and sports501(c)(3)2015$0$02025-12
Brieanna Rose Antonio Memorial FundPublic and societal benefit501(c)(3)2014$0$02025-12
Connecticut Education Association501(c)(5)1971$0$02025-06
Crew 3000 IncEnvironment501(c)(3)2019$0$02025-03
East Mountain Church of Christ501(c)(3)1992
Education Resource FoundationHuman services501(c)(3)2022$0$02024-12
Fathers House IncReligion-related501(c)(3)2011
Federated Garden Clubs of Connecticut Inc501(c)(3)1967$0$02025-12
Fraternal Order of Police501(c)(8)1952$0$02025-06
Gamma Omega Housing Inc501(c)(7)1994$0$02025-12
Guardian Giving Alliance IncPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2024$0$02024-12
Holy Disciples Parish Corporation501(c)(3)1946
Jeep Enthusiast of ConnecticutHuman services501(c)(3)2024
Knights of Columbus 3594 St Pius X CouncilMutual and membership benefit501(c)(8)2022$0$02025-12
Lacrosse Association of WatertownRecreation and sports501(c)(3)2018$0$02025-12
Macauley Foundation IncPhilanthropy, voluntarism and grantmaking foundations501(c)(3)1996$9.9 million2025-06
Michael Anthonys Project IncMental health and crisis intervention501(c)(3)2011$0$02025-12
New Beginnings Assembly of God501(c)(3)1964
New Hope Anglican ChurchReligion-related501(c)(3)2013
Northwest Connecticut Sportsmans CouncilCommunity improvement and capacity building501(c)(4)2002$0$02025-12
Perfect Imperfections LLCAnimal-related501(c)(3)2017$0$02023-12
Pocket Full of Rocks IncCivil rights, social action and advocacy501(c)(3)2024$0$02025-12
Quilts That Care IncMedical research501(c)(3)2013$0$02025-12
Ron and Ellen Schmid FoundationFood, agriculture and nutrition501(c)(3)2014$498,8042025-12
Super East Collegiate Hockey League IncRecreation and sports501(c)(7)2012$0$02025-12
The Kindconnect IncHuman services501(c)(3)2025$12025-12
Unico National501(c)(4)1966$0$02025-06
United Methodist Church of Watertown501(c)(3)19742013-12
VFW Auxiliary Department of Connecticut Inc501(c)(19)2009$0$02026-06
Water Oak Circle of SportsYouth development501(c)(3)2017$0$02024-12
Water-Oak Athletic Club501(c)(3)1993$0$02025-12
Water-Oak Community Women IncHuman services501(c)(3)2015$0$02026-06
Watertown First Robot IncHuman services501(c)(3)2026
Watertown High School Gridiron ClubRecreation and sports501(c)(3)2025$0$02026-06
Watertown High School PtoEducation501(c)(3)2024$0$02026-06
Watertown Pomperaug Hockey Association IncRecreation and sports501(c)(3)2024$0$02025-12
Watertown Tennis Club Inc501(c)(7)1949$0$02025-12

By cause in Watertown, 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.