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Data / Nonprofits / Connecticut / Windsor

Nonprofits in Windsor, CT: 211 registered with the IRS

211 nonprofits are registered with the IRS in Windsor, CT, 193 of them 501(c)(3) charities; the 55 that report revenue took in $301.1 million. The largest by revenue: Community Health Resources Inc ($82.5 million), Loomis Institute ($80.5 million), LL Global Inc ($59.7 million). Most common causes: religion-related (29), education (28), human services (17).

SpecStream is the live web data engine for teams and agents. It reads the IRS register of exempt organizations as the IRS updates it, and this page is that reading. Ask for the nonprofits you need by place, cause and size, with their latest Form 990 figures and websites, and they arrive in your sheet, CRM, Slack or agent.

Every organization, largest by revenue first

OrganizationCategoryTypeSinceRevenueAssetsFiling
Community Health Resources IncMental health and crisis intervention501(c)(3)1966$82.5 million$46.6 million2025-06
Loomis InstituteEducation501(c)(3)1938$80.5 million$564.6 million2025-06
LL Global IncCommunity improvement and capacity building501(c)(6)2008$59.7 million$84.1 million2024-12
Community Solutions IncMental health and crisis intervention501(c)(3)2000$46.5 million$31 million2025-06
Easterseals Capital Region & Eastern Connecticut IncHealth care501(c)(3)1951$7 million$8.5 million2025-06
Windsor Independent Living Association Inc501(c)(3)1976$5.8 million$4.7 million2025-06
Windsor Volunteer Ambulance IncHealth care501(c)(3)1984$2.6 million$1.5 million2024-06
Green and Blue Foundation IncHuman services501(c)(3)2021$2 million$1.1 million2024-12
Madina Academy IncEducation501(c)(3)2001$2 million$3.7 million2025-08
Julie House IncHousing and shelter501(c)(3)2002$1.4 million$509,0502025-09
CHR Captial IncHealth care501(c)(3)1997$1.4 million$19.4 million2025-06
Documenting Hope IncEducation501(c)(3)2010$904,158$718,4952025-12
Collins Group Inc501(c)(3)1994$770,359$3.6 million2025-06
Efficiency for All IncEnvironment501(c)(3)2018$625,455$245,3572024-12
Connecticut Radio Information System IncArts, culture and humanities501(c)(3)1978$610,927$1.5 million2025-06
Brain Injury Alliance of Connecticut Inc501(c)(3)1983$589,327$369,1562025-06
North Connecticut Flag Football League IncRecreation and sports501(c)(3)2018$584,809$79,2672025-12
National Society of the Daughters of the American Revolution501(c)(3)1949$556,721$3.3 million2024-12
Connecticut Cat Connection IncAnimal-related501(c)(3)2007$534,140$413,6412024-12
Windsor Library Association Agent for Treasurer501(c)(3)1941$475,207$1.5 million2025-06
Fitch Court Apartments Inc501(c)(3)2008$454,218$1.4 million2024-12
Keney Park Sustainability Project IncArts, culture and humanities501(c)(3)1999$420,256$321,4002024-12
Windsor Historical Society of Windsor Conn Inc501(c)(3)1947$407,985$10.8 million2025-06
Friends of Keney Park IncRecreation and sports501(c)(3)1991$313,011$273,6682025-12
Marys Place Inc501(c)(3)1997$299,164$851,0842024-12
Windsor Food and Fuel Bank Inc501(c)(3)1978$229,362$458,1422025-12
Windsor Community Television IncArts, culture and humanities501(c)(3)1982$162,790$59,4242025-12
Windsor Art CenterArts, culture and humanities501(c)(3)2009$145,435$74,1122025-06
Windsor Water Rats Express Swim TeamRecreation and sports501(c)(3)2021$113,715$124,8982025-12
Hummingbird ProjectHuman services501(c)(3)2024$112,640$12025-12
21St Century Tolland Fund IncYouth development501(c)(3)2021$112,013$57,3782026-06
Vintage Radio and Communications Museum of Connecticut IncArts, culture and humanities501(c)(3)1997$97,327$355,2832024-12
Windsor Chamber of Commerce501(c)(6)$91,537$76,2182025-06
Ancient Free & Accepted Masons of Connecticut501(c)(10)1943$82,356$569,9422025-11
Vietnamese Buddhist Community of ConnecticutReligion-related501(c)(3)2015$80,752$408,7072025-12
Kerala Association of ConnecticutArts, culture and humanities501(c)(3)2007$72,605$41,2002025-09
Connecticut Eliminators IncRecreation and sports501(c)(3)2006$70,398$1542025-08
Windsor Soccer Club Inc501(c)(3)1983$66,387$46,6272025-12
Little League Baseball Inc501(c)(3)1967$65,988$31,3842025-09
National Environmental Balancing IncEnvironment501(c)(6)1973$65,126$82,2862025-12
American Chemical Society501(c)(3)1946$61,004$283,1022025-12
Lucindas HouseHuman services501(c)(3)2025$58,929$50,0132024-12
W I S E Network IncHuman services501(c)(3)2024$54,606$6,3122025-12
Union Street Tavern Trot IncMedical research501(c)(3)2016$52,378$4,3552023-12
Friends of Northwest Park Inc501(c)(3)1981$49,664$89,0772025-06
Butler Family Foundation IncPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2024$48,593$56,4852024-12
First Town Downtown IncCommunity improvement and capacity building501(c)(3)1997$46,723$85,9372025-06
Recovery Club IncMental health and crisis intervention501(c)(3)1991$43,269$258,1132024-12
Windsor Police Cadets IncEducation501(c)(3)2007$33,851$12025-06
Windsor Diamond Club IncEducation501(c)(3)2014$28,579$33,7612025-06
Caribbean American Dance CompanyPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2016$20,989$4202025-12
Saint Francis Pho Foundation IncHealth care501(c)(3)2007$5,769$663,2342024-12
Green Eco Warriors IncEnvironment501(c)(3)2014$762$20,1292024-12
Windsor Giants Midget Football Team IncRecreation and sports501(c)(3)1999$189$5,3592024-12
Achievement Unlimited 2 IncEducation501(c)(3)2025$0$02025-12
Aerospace Robotics Booster ClubEducation501(c)(3)2024
Alternative Routes IncHuman services501(c)(3)2022$0$02024-12
Always 65 IncDiseases, disorders and medical disciplines501(c)(3)2026
American Lifesaving FoundationHealth care501(c)(3)2024
Anita Ava House for Women IncHuman services501(c)(3)2023$0$02025-12
Annie Mae Craft Foundation IncHuman services501(c)(3)2022$0$02025-12
Archer Memorial A M E Zion Church501(c)(3)1992
Ascend MentoringCrime and legal-related501(c)(3)2012$0$02025-12
Bahais of Windsor Town501(c)(3)1995
Biankas BlessingsEducation501(c)(3)2022$0$02024-12
Black Leaders and Administrators Consortium IncorporatedArts, culture and humanities501(c)(3)2020$0$02025-12
Bloomfield Korean Church501(c)(3)1983
Body of Christ Apostolic ChurchReligion-related501(c)(3)1998
Brighter WithinYouth development501(c)(3)2012$0$02025-12
Brokenness To Wholeness IncHuman services501(c)(3)2023$0$02024-12
Bruckner Society of America Inc501(c)(3)1942$22,2312025-12
C I Baker Global Private Family Fou NdationPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2026
Cheer Institute IncHealth care501(c)(3)2020$0$02024-07
Christ Centered ChurchReligion-related501(c)(3)2021
Christ Proclamation Church Inc501(c)(3)2019
Church of Christ Asian MissionsReligion-related501(c)(3)2021$0$02025-12
City Church501(c)(3)1991$0$02023-12
Clover Street Parent Teacher Associ AtionEducation501(c)(3)2026
Community Lighthouse IncPublic and societal benefit501(c)(3)2014$0$02025-12
Compass - New England IncReligion-related501(c)(3)2017$0$02023-12
Conduit Communications IncReligion-related501(c)(3)2025
Congregation Beth AhmReligion-related501(c)(3)1999
Connecticut Alliance of Black Schoo L EducatorsEducation501(c)(3)2026
Connecticut Junior Women Inc501(c)(3)1993$0$02025-12
Connecticut Premier Cricket League IncRecreation and sports501(c)(3)2020$0$02025-12
Connecticut Province of the Sisters of Notre Dame de Namur501(c)(3)1946
Connecticut Valley Church of Christ Inc501(c)(3)1984
Connecticut Valley Tobacco Historical Society IncorporatedArts, culture and humanities501(c)(3)2022$0$02025-08
Daly Irr Trust DTD 6-28-12 Fbo Romance Languages Univ of PennEducation501(c)(3)2014$503,4012025-12
Dixon Development Institute IncCommunity improvement and capacity building501(c)(3)2015$0$02023-09
Don W Miller 2011 Scholarship Foundation Irrev DeclarationEducation501(c)(3)2012$749,3292025-12
Dorcas Foundation IncFood, agriculture and nutrition501(c)(3)2022$0$02023-12
Dream Drivers Foundation IncYouth development501(c)(3)2014$0$02025-12
Education Association of Christian Homeschoolers of CT IncEducation501(c)(3)2004$0$02025-06
Ellsworth Memorial Association501(c)(3)1965$0$02025-12
Embracing Your Destiny IncPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2018$0$12024-12
Enosa FoundationHealth care501(c)(3)2021$0$02023-12
Escrec Development IncCommunity improvement and capacity building501(c)(3)2010$0$02025-06
Evan Allen Landry Memorial ScholarshipEducation501(c)(3)2014$0$02025-12
Ever-Lasting Hope MinistriesReligion-related501(c)(3)2012
Faith Ministries Church of God in Christ InternationalReligion-related501(c)(3)2005
First Path Academy IncEducation501(c)(3)2025
Focus Outreach MinistriesReligion-related501(c)(3)2009
Fraternal Order of Police501(c)(8)1952$0$02026-06
Friends of Princess Sumaya Universi Ty for Technology Foundation IncEducation501(c)(3)2026
Friends of Windsor Montessori IncEducation501(c)(3)2026
General Federation of Womens Club501(c)(3)1985$0$02026-06
Gurdwara Dukh Nivaran SahibReligion-related501(c)(3)2018
Hartford Telugu Christian Fellowship IncReligion-related501(c)(3)2011
Hayden Station Fire Company IncCommunity improvement and capacity building501(c)(3)2014$0$02025-12
Help for the Blind of Eastern Connecticut IncHuman services501(c)(3)1996$322,4392025-12
Holy Temple Church of God in Christhartford IncReligion-related501(c)(3)2007
Holy Zion Church of the Jubilee501(c)(3)1984
Hope Tabernacle Apostolic ChurchReligion-related501(c)(3)2010
Hopewell Baptist Church IncReligion-related501(c)(3)1955
IactReligion-related501(c)(3)2024
Ink Community CollectiveHuman services501(c)(3)2025
International Association of Lions Clubs501(c)(4)1969$0$02025-06
International Fellowship of Sanctuary of Faith & Glory ChurcheReligion-related501(c)(3)2009
International Gospel FellowshipReligion-related501(c)(3)2003
Islamic Center of Connecticut501(c)(3)1976
JC Global Rescuers IncEducation501(c)(3)2018$0$02025-12
Jackson Memorial Church of God & Christ International Inc501(c)(3)1984
John F Kennedy School Parent Teacher OrganizationEducation501(c)(3)1990$0$02026-07
Journey 2 Free IncorporatedHuman services501(c)(3)2024$0$02025-12
Jump2unite Empowerment OrganizationRecreation and sports501(c)(3)2023$0$02025-12
Kado Pet Foundation Inc501(c)(3)2006$0$02025-12
Kenways CauseAnimal-related501(c)(3)2014$0$02025-12
Kids Affected By Addiction Foundation IncYouth development501(c)(3)2025$0$02025-12
Kingdom Community ChurchReligion-related501(c)(3)2010
Kings International Missions CorporationHuman services501(c)(3)2021$0$02025-12
Kiwanis International Inc501(c)(4)1966$0$02024-12
LL Global Education Foundation IncEducation501(c)(3)2005$0$02025-12
League of Women Voters of Connecticut Inc501(c)(4)1964$0$02026-06
Leo Clinic IncHealth care501(c)(3)2025
Light and Guidance for Peace IncHuman services501(c)(3)2017$0$02023-12
Lions Club Foundation of Windsor Connecticut IncDiseases, disorders and medical disciplines501(c)(3)2018$0$02025-12
Mapeach Partners IncArts, culture and humanities501(c)(3)2017$0$02023-12
Mena Us Association of Business and Economics IncEducation501(c)(3)2025
Michael Gonzalez Ministries IncReligion-related501(c)(3)2019$0$02024-12
Mount Carmel Christian Ministries IncReligion-related501(c)(3)2008
Mt Zion Redemption CorpHuman services501(c)(3)2024$0$02025-12
National Active and Retired Federal Employees Association501(c)(5)1963$0$02025-12
National Association of Women in Construction501(c)(6)1970$0$02025-09
National Society of the Daughters of the American Revolution501(c)(3)1938$0$02025-12
Neurosurgical Society of Connecticut IncDiseases, disorders and medical disciplines501(c)(3)2014$0$02025-12
New Day Community Ministries IncReligion-related501(c)(3)2023$0$02025-12
New England Brothahood IncYouth development501(c)(3)2023$0$02025-12
New Light International Kingdom Center Church IncReligion-related501(c)(3)2009
Oasis Christian Church of Connecticut Inc501(c)(3)1965
Oliver Ellsworth Parent Teacher OrganizationEducation501(c)(3)1990$0$02026-08
Orchard Acres Water Association IncPublic and societal benefit501(c)(12)2012$0$02025-12
Orthodox Church in America Diocese of New England501(c)(3)1942
Paul T Hansen Memorial FundPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2025
Petal Power USAMental health and crisis intervention501(c)(3)2026
Pilgrim Way Baptist Church501(c)(3)1955
Plad Family FoundationPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2022$76,0832025-12
Poquonock Elementary School Parent Teacher Organization501(c)(3)1991$0$02025-07
Praise Power and Prayer Temple of Conn Inc501(c)(3)19642016-12
Project SantaHuman services501(c)(3)2016$0$02024-12
Real Life Resource Center IncorporatedYouth development501(c)(3)2024
Remanente Escogido de Yahweh IncReligion-related501(c)(3)2026
Resurgence Transitional Housing Cor PCrime and legal-related501(c)(3)2026
Rotary International501(c)(4)1942$0$02026-06
Rough Edges Arts ProductionsArts, culture and humanities501(c)(3)2014$0$02026-06
Royal Scottish Country Dance Society501(c)(3)1989$0$02026-03
Saint Damien of Molokai Parish Corporation501(c)(3)1943
Sanctuary of Faith and Glory501(c)(3)1955
Sankofa Community Outreach Foundation CompanyCommunity improvement and capacity building501(c)(3)2024$0$02025-12
Save Our Schools for Our Kids FoundationEducation501(c)(3)2018$0$02024-08
See Art Now IncArts, culture and humanities501(c)(3)2021$0$02024-12
Seedtime and Harvest MinistriesReligion-related501(c)(3)2008
Sri Guru Ramdas Darbar IncReligion-related501(c)(3)2014$0$02025-12
St Francis of Assisi Childrens Foun Dation IncHealth care501(c)(3)2026
St Gabriels Church Corp of Hartford Connecticut501(c)(3)1946
Support Info Go Initiative IncDiseases, disorders and medical disciplines501(c)(3)2023$0$02025-12
Tabernacle of Prayer for All People Hartford Inc501(c)(3)1997
Tay Strong Foundation IncArts, culture and humanities501(c)(3)2026$0$02025-12
Team Mad IncPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2007$0$02024-12
Team Paragon Robotics IncEducation501(c)(3)2009$0$02025-06
The Apostles House IncReligion-related501(c)(3)2008
The Astronomical Society of Greater Hartford501(c)(3)1985$0$02025-08
The Oliver-Benoit Foundation CoHuman services501(c)(3)2023$0$02024-12
The War Is On FoundationYouth development501(c)(3)2017$0$02025-10
The Windsor Fife and Drum Corp501(c)(3)1986$0$02025-12
Thought Shift LLCEducation501(c)(3)2019$0$02024-12
Trinity Education Development CorporationReligion-related501(c)(3)2025$0$02021-12
Twilight Fire Circle IncReligion-related501(c)(3)2004
Unity 4 the Community Foundation IncPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2025
VFW Auxiliary Department of Connecticut IncPublic and societal benefit501(c)(19)2009$0$02026-06
Vasa Order of America501(c)(8)1945$0$02026-04
Vine Bezaleel Ministries IncHuman services501(c)(3)2018$0$02023-12
Vintage Hifi IncArts, culture and humanities501(c)(3)2014$0$02025-12
Voices Against Lyme Diseasect IncDiseases, disorders and medical disciplines501(c)(3)2015$0$02025-12
Waymaker IncEducation501(c)(3)2025$0$02024-12
Windsor Climate Action Inc501(c)(3)2020$0$02025-12
Windsor Cricket ClubRecreation and sports501(c)(3)2016$0$02025-12
Windsor Education FoundationEducation501(c)(3)2007$0$02025-06
Windsor Garden Club501(c)(3)2024$0$02025-12
Windsor High School Band Boosters IncArts, culture and humanities501(c)(3)2024$0$02025-12
Windsor High School Project Graduat Ion IncEducation501(c)(3)2025$0$02026-07
Windsor Land Trust IncEnvironment501(c)(3)2003$0$02024-12
Windsor Marksmens Association IncRecreation and sports501(c)(7)2015$0$02024-12
Windsor Masonic Building Association Incorporated 153 Broad501(c)(2)1977$0$02025-11
Windsor Rotary Club Charitable Fund IncPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2016$0$02026-06
Windsor School of Self Defense IncRecreation and sports501(c)(3)1995$0$02024-12
Windsor Travel Basketball Club IncRecreation and sports501(c)(3)2026
Witness Project of Connecticut IncDiseases, disorders and medical disciplines501(c)(3)2002$0$02025-12
Woodmen of the World Life Insurance Society501(c)(8)1941$0$02025-12
Yappy Tails Animal Rescue IncAnimal-related501(c)(3)2019$0$02024-12
Knights of Columbus501(c)(8)1940$-8,019$272,9952025-12

By cause in Windsor, 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.