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Data / Nonprofits / Connecticut / Madison

Nonprofits in Madison, CT: 133 registered with the IRS

133 nonprofits are registered with the IRS in Madison, CT, 105 of them 501(c)(3) charities; the 57 that report revenue took in $57.1 million. The largest by revenue: Vista Life Innovations Inc ($11.3 million), Country School Incorporated ($8.2 million), Madison Country Club Inc ($4.2 million). Most common causes: education (18), arts, culture and humanities (13), recreation and sports (11).

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
Vista Life Innovations Inc501(c)(3)1992$11.3 million$26.8 million2025-06
Country School IncorporatedEducation501(c)(3)1956$8.2 million$13.4 million2025-06
Madison Country Club Inc501(c)(7)$4.2 million$10.3 million2024-12
Camp Laurelwood IncRecreation and sports501(c)(3)1957$3.8 million$3.2 million2025-09
Wire Association Inc501(c)(6)1945$3.3 million$6.3 million2025-12
Madison Beach Club Inc Island Ave501(c)(7)1937$2.7 million$3.9 million2025-10
Madison Ambulance Association IncHealth care501(c)(3)1990$2.7 million$1.2 million2025-06
E C Scranton Memorial Library501(c)(3)1964$2.6 million$19.3 million2025-06
Our Lady of Mercy School of Madison IncEducation501(c)(3)2019$1.9 million$26,3102025-06
Mercy Center IncorporatedReligion-related501(c)(3)1946$1.8 million$1.6 million2025-06
Association of Independent School Admissions ProfessionalsEducation501(c)(3)2006$1.7 million$752,8992025-06
Vista Endowment Fund IncHuman services501(c)(3)2005$1.5 million$11.1 million2025-06
Renew Northeast IncEnvironment501(c)(6)2011$1.2 million$1.3 million2025-12
Madison Land Conservation Trust IncEnvironment501(c)(3)1964$866,125$793,0882024-12
Hope Partnership IncHousing and shelter501(c)(3)2006$833,624$8.8 million2025-06
Kids Scholarship Fund IncEducation501(c)(3)1998$766,050$13.4 million2025-06
Hammonassett Fishing Association501(c)(7)1994$725,385$3.5 million2025-12
Infinite Strength IncPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2018$637,405$112,8832025-12
North Madison Volunteer Fire Co Inc501(c)(4)1969$567,235$1.9 million2025-06
The Madison Foundation IncHealth care501(c)(3)1997$505,167$2.5 million2024-12
Camp Rising Sun IncDiseases, disorders and medical disciplines501(c)(3)2014$427,014$364,7912024-12
Madison Hose Co-1 Inc501(c)(4)1960$410,439$1.6 million2025-06
Olmstrong Foundation IncEducation501(c)(3)2024$410,114$2.2 million2024-12
Franciscan Family Apostolate IncInternational, foreign affairs and national security501(c)(3)1987$392,339$381,2472024-12
Madison Youth Soccer Booster Club501(c)(3)1984$298,611$224,5762024-12
Shoreline Arts Alliance IncArts, culture and humanities501(c)(3)1980$246,862$346,6402025-06
Friends of Madison Youth IncHuman services501(c)(3)1998$244,415$132,9592024-12
Cameron Kravitt Foundation501(c)(3)1985$207,988$663,7652024-12
Call To Care Uganda IncInternational, foreign affairs and national security501(c)(3)2009$179,766$52,5272025-12
Act II Thrift Shop IncHuman services501(c)(3)2008$178,690$108,3082025-06
The Madison Chamber of CommerceCommunity improvement and capacity building501(c)(6)1984$178,172$227,5322025-12
Friends of Hammonasset IncEnvironment501(c)(3)1999$167,969$780,1872025-12
Madison Hoop Dreams IncRecreation and sports501(c)(3)2007$160,143$21,3262024-12
Madison Lyric StageArts, culture and humanities501(c)(3)2017$157,115$37,6462025-12
Vibe Show Choir SupportersEducation501(c)(3)2014$147,929$92,0922024-12
Neck River Elementary Parent Teacher OrganizationEducation501(c)(3)2001$141,860$41,7732025-06
Madison Community Services IncHuman services501(c)(3)1996$140,183$255,6672025-12
Little League Baseball IncRecreation and sports501(c)(3)1967$130,475$98,8782025-09
Madison Historical Society IncArts, culture and humanities501(c)(3)1962$117,297$608,2372024-12
Apk Charities CorporationPublic and societal benefit501(c)(3)2020$99,871$15,7932025-12
Brown Elementary School Parent Teacher OrganizationEducation501(c)(3)2006$99,870$17,8022025-07
Madison Youth Basketball AssociationRecreation and sports501(c)(3)2008$98,432$28,2202025-12
Random Tuesday IncPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2016$91,773$4,5752025-12
Madison Rotary Foundation Inc501(c)(3)1965$87,707$310,3212025-06
Fostering Family HopeHuman services501(c)(3)2021$84,832$19,1872024-12
Federated Garden Clubs of Connecticut IncEnvironment501(c)(3)1967$73,109$761,9182025-12
American Legion501(c)(19)1945$60,849$71,6732025-10
Ensemble Cherubim IncArts, culture and humanities501(c)(3)2024$60,348$9362025-12
Madison Fireworks Organization IncPublic and societal benefit501(c)(3)2003$53,680$42,4542024-12
National Exchange Club501(c)(4)1975$49,126$25,7052025-06
Connecticut Education Association501(c)(5)1971$48,729$61,7942026-06
Madison Cable Access Group IncArts, culture and humanities501(c)(3)1997$47,991$122,0352025-12
Madison Jaycees Foundation IncPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2014$37,307$64,2442025-06
Madison Cultural ArtsArts, culture and humanities501(c)(3)1996$26,899$187,7412025-12
Deacon John-Grave Foundation IncArts, culture and humanities501(c)(3)1983$25,489$618,3032024-12
Rotary International501(c)(4)1942$13,383$2,5102025-06
Carpatho-Rusyn Legacy Fund IncArts, culture and humanities501(c)(3)2023$6,989$129,5682025-12
American Federation of State County & Municipal Employees501(c)(5)1957$0$02024-12
American Legion Auxiliary501(c)(19)1946$0$02026-06
Ancient Free & Accepted Masons of Connecticut501(c)(10)1943$0$02025-11
Association of Madison AdministratorsEmployment501(c)(5)2016$0$02026-06
Babywearing Connecticut IncHuman services501(c)(3)2018$0$02025-12
Beach Roses Fund IncDiseases, disorders and medical disciplines501(c)(3)2025
Brown Elementary School Pto CorpEducation501(c)(3)2026
Bulldog Buddies IncYouth development501(c)(3)2026
Charlotte L Evarts Memorial Archives IncArts, culture and humanities501(c)(3)2014$0$02024-12
Christ Chapel of the Christian and Missionary Alliance501(c)(3)1972
Connecticut Education Association501(c)(5)1971$0$02026-06
Connecticut Society of Enrolled501(c)(6)1992$0$02025-06
Connecticut Theater Women Network IncArts, culture and humanities501(c)(3)2025$0$02025-12
DHHS Boys Lacrosse BoostersRecreation and sports501(c)(3)2026$0$02025-07
Daniel Hand High School PtoEducation501(c)(3)2011$0$02024-07
Dick and Bernice Ramsey Charitable Fund IncPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2018$1.4 million2025-09
Fairfield League of Yankee Radio Controllers IncYouth development501(c)(3)2024$0$02024-09
Frederick J Maudsley Memorial Foundation IncRecreation and sports501(c)(3)2025
Geh Foundation501(c)(3)2025$981,0252025-12
General Federation of Womens Clubs501(c)(3)1985$0$02025-05
HTC Youth IncRecreation and sports501(c)(3)2018$0$02023-11
Hand Girls Hockey Booster ClubRecreation and sports501(c)(3)2019$0$02024-12
Help for Happiness IncMental health and crisis intervention501(c)(3)2022$0$02023-12
Helping Hands of Madison IncHuman services501(c)(3)2020$0$02025-12
Hotchkiss Class of 1963Recreation and sports501(c)(7)2026
Institute for Life Sciences Collaboration IncEducation501(c)(3)2014$0$4872025-12
Jeg MinistriesReligion-related501(c)(3)2018$0$02025-12
Knights of Columbus501(c)(8)1940$0$02025-12
Lauren McBride FoundationPublic and societal benefit501(c)(3)2025
Lutheran Church of Madison501(c)(3)19412014-12
Madison Abc Program IncorporatedEducation501(c)(3)1969$0$02026-06
Madison Art SocietyArts, culture and humanities501(c)(3)2009$0$02025-12
Madison Athletic Hall of Fame IncRecreation and sports501(c)(3)2022$0$02025-12
Madison Christian Ministries Inc501(c)(3)1979
Madison Masonic Temple Corporation501(c)(2)1977$0$02025-11
Madison Pride FestCivil rights, social action and advocacy501(c)(3)2021$0$02025-07
Madison Soccer Booster ClubRecreation and sports501(c)(3)2016$0$02025-12
Madisons Nite in HandEducation501(c)(3)2014$0$02026-07
Museum of Culture and Arts IncArts, culture and humanities501(c)(3)2019$0$02026-04
National Exchange Club501(c)(4)1950$0$02025-06
National Exchange Club501(c)(4)1950$0$02025-06
North Madison West Side Cemetery Association IncorporatedMutual and membership benefit501(c)(13)2016$0$02026-03
Nutmeg Division Northeastern Region National Model Railroad Association Inc501(c)(3)2014$0$02026-03
Nxys Neurodiverse Exceptional Youth Society IncYouth development501(c)(3)2025$0$02025-12
Parent Booster USA IncEducation501(c)(3)2005$0$02025-07
Quota International of New HavenPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2020$0$02025-09
Regional School District No 17support Services Association IncEmployment501(c)(5)2025$0$02025-06
Ricci Scholars Foundation IncInternational, foreign affairs and national security501(c)(3)2025$0$02025-06
Robert H Brown School PtoEducation501(c)(3)1997$0$02025-07
Scouting for Our Community IncCommunity improvement and capacity building501(c)(3)2026$0$02025-12
Scranton Library Friends IncEducation501(c)(3)2014$0$02025-12
Shoreline Astronomical Society IncScience and technology501(c)(3)2025$0$02025-12
Shoreline Christian Church501(c)(3)1987
Shoreline Unitarian Universalist SocietyReligion-related501(c)(3)2025
Shoreline Youth Symphony Orchestra IncArts, culture and humanities501(c)(3)1993$0$02026-08
Sos for RefugeesHuman services501(c)(3)2023$0$02025-12
Spectrum of Light IncYouth development501(c)(3)2025$0$02025-12
Stone Trust Corporation501(c)(3)1963$11.3 million2025-08
Summer Hill FoundationPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2007$20 million2025-12
Summer Hill Foundation IncPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2026
Take Pride BoutiqueHuman services501(c)(3)2026
Taps Theater Arts Program SupportersEducation501(c)(3)2026$0$02025-12
The Davis Family Fund Inc501(c)(3)1964$496,4402025-10
The Doherty Family Foundation IncPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2025$0$02025-12
The Newcomers Club of Madison Connecticut IncCommunity improvement and capacity building501(c)(4)2019$0$02026-06
The Sara Labowe Tzedaka Foundation501(c)(3)2026
The St Margaret Church Corporation of Madison Connecticut501(c)(3)1946
The Turtles Back IncAnimal-related501(c)(3)2019$0$02025-12
The Wire Foundation IncEducation501(c)(3)2021$0$02025-12
Tiger Pride Football Association IncYouth development501(c)(3)2019$0$02025-12
Time To Restore IncHuman services501(c)(3)2025$3,9172024-12
Tu Clause 3RD Wo Ellis A Gimbel501(c)(92)1900$1.3 million2025-12
Veterans of Foreign Wars Madison Post 2096Public and societal benefit501(c)(19)2024$0$02024-12
Vista Advocacy Services IncDiseases, disorders and medical disciplines501(c)(3)2010$0$02025-06
Walter C Polson Pto501(c)(3)1955$0$02026-07
William & Honora Ramsay Ambulatory Medical and Prosthetic ServicesInternational, foreign affairs and national security501(c)(3)2016$0$02025-12

By cause in Madison, 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.