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Data / Nonprofits / Connecticut / Putnam

Nonprofits in Putnam, CT: 74 registered with the IRS

74 nonprofits are registered with the IRS in Putnam, CT, 50 of them 501(c)(3) charities; the 22 that report revenue took in $176.6 million. The largest by revenue: Day Kimball Healthcare Inc ($136.5 million), Day Kimball Medical Group Inc ($21.5 million), Matulaitis Nursing Home Inc ($13 million). Most common causes: education (11), public and societal benefit (5), health care (5).

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
Day Kimball Healthcare IncHealth care501(c)(3)1937$136.5 million$70 million2025-09
Day Kimball Medical Group IncHealth care501(c)(3)2012$21.5 million$3 million2025-09
Matulaitis Nursing Home Inc501(c)(3)1946$13 million$7.1 million2025-09
Putnam-Pomfret Ambulance IncPublic safety, disaster preparedness and relief501(c)(4)2009$1.3 million$255,6052024-04
Putnam Baptist Homes Inc501(c)(3)1979$977,965$2.8 million2025-12
Day Kimball Healthcare Foundation IncHealth care501(c)(3)2021$772,273$6.4 million2025-09
Theatre of Northeastern Connecticut IncArts, culture and humanities501(c)(3)1991$481,708$401,2782025-12
Benevolent & Protective Order of Elks of the USAMutual and membership benefit501(c)(8)1951$382,289$413,9652026-03
Paws Cat Shelter IncAnimal-related501(c)(3)2017$257,572$372,4612024-12
Interfaith Human Services of Putnam IncFood, agriculture and nutrition501(c)(3)2003$242,775$405,5612024-12
P B H Housing of Plainfield IncHousing and shelter501(c)(3)2000$163,023$1.5 million2025-12
Lithuanian Catholic Academy of Sciences IncReligion-related501(c)(3)2016$150,961$1.9 million2024-12
WPTP Youth Football & Cheer IncRecreation and sports501(c)(3)1995$127,010$33,4752024-12
Putnam CommunitiesHousing and shelter501(c)(3)2025$116,733$4.6 million2025-06
Putnam Cemetery Association501(c)(13)1971$116,163$834,1362024-12
Albert J Breault Post No 1523 Veter Ans of Foreign WarsPublic and societal benefit501(c)(19)2024$102,016$8,9782025-06
Rotary International501(c)(4)1958$101,425$83,7342025-06
Womans Board Day Kimball HospitalHealth care501(c)(3)2012$79,178$146,8222024-12
Brotherhood of Railroad Signalmen501(c)(5)2020$66,340$51,8542025-12
Little League Baseball Inc501(c)(3)1981$58,023$29,9192025-09
Putnam Business Association IncCommunity improvement and capacity building501(c)(6)2014$56,859$31,8122025-12
Putnam Rotary Foundation IncEducation501(c)(3)2025$25,259$678,9142023-12
American LegionPublic and societal benefit501(c)(19)1946$0$02025-12
American Legion Auxiliary501(c)(19)1946$0$02025-09
Annhurst College Alumni Association IncEducation501(c)(3)2014$0$02025-12
Aspinock Historical Society of Putnam IncArts, culture and humanities501(c)(3)2023$0$02026-04
Association of Retired Combat CommunicatorsPublic and societal benefit501(c)(19)2014$0$02025-03
Audio Nerd Book Club IncArts, culture and humanities501(c)(3)2023$0$02026-06
Cargill Falls Community Development IncorporatedHousing and shelter501(c)(3)2017$0$10 million2025-11
Connecticut Education Association501(c)(5)1971$0$02026-06
Connecticut Federation of School AdministratorsEmployment501(c)(5)2005$0$02026-06
Daughters of Isabella501(c)(8)1972$0$02026-04
Daughters of the Holy Spirit Administrative Offices501(c)(3)1946
East Putnam Community Church Inc501(c)(3)1971
Eastern Connecticut Soccer Officials Association Inc501(c)(3)1989$0$02025-12
Emblem Club of the United States of America Inc501(c)(4)1967$0$02025-06
Friends of the Putnam Public Library IncEducation501(c)(3)2011$0$02025-12
Green Valley Crossing IncReligion-related501(c)(3)2023
Holy Spirit Health Care Center Inc501(c)(3)1946
Hope Community Church501(c)(3)19642013-12
Immaculate Conception Center Inc501(c)(3)1946
International Association of Lions Clubs501(c)(4)1969$0$02025-12
Joyful Paws and Happy TailsAnimal-related501(c)(3)2026
Knights of Columbus501(c)(8)1940$0$02025-12
Knights of Columbus501(c)(8)1940$0$02025-12
Living Messages501(c)(3)1979$0$02025-12
Mitchell D Phaiah Foundation IncPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2017$3.1 million2024-12
New Beginnings MinistriesReligion-related501(c)(3)2007
Parent Booster USA IncEducation501(c)(3)2005$0$02025-06
Peter T Serafin Living Trust501(c)(92)$12025-12
Putnam Bank FoundationPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2006$2.4 million2025-06
Putnam Baptist Church501(c)(3)1955
Putnam Elementery School Parent Teacher OrganizationPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2006$0$02025-06
Putnam High School Wall of HonorEducation501(c)(3)2020$0$02025-12
Putnam Lions Club Foundation IncEducation501(c)(3)2009$0$02025-06
Putnam Middle School Parent Teacher Organization IncEducation501(c)(3)2025$0$02025-06
Putnam Veterans Advisory CommitteePublic and societal benefit501(c)(3)2023$0$02026-06
Quiet Corner CaresHealth care501(c)(3)2020$0$02025-12
Quiet Corner ReadsEducation501(c)(3)2014$0$02026-06
Quiet Corner Robotics IncorporatedEducation501(c)(3)2017$0$02025-06
Quinebaug Valley Velo Club IncRecreation and sports501(c)(7)2013$0$02025-12
Rally for Charity IncRecreation and sports501(c)(3)2024$0$02025-12
Safe Haven Rescue IncAnimal-related501(c)(3)2023$0$02025-12
Salon National Laboutique Des Huit Chapeaux Et Quarante Femmes501(c)(4)1950$0$02024-12
Sisters of St Martha501(c)(3)1946
Sisters of the Immaculate Conception Inc501(c)(3)1946
St James School PtoEducation501(c)(3)2025
Supreme Emblem Club of the United States of America Inc501(c)(4)1949$0$02025-06
Town of Putnam Special Service District Fire Dept AssocEducation501(c)(3)2021$0$02025-06
United Nurses and Allied Professionals501(c)(5)1998$0$02026-06
United States Australian Shepherd FoundationAnimal-related501(c)(3)2006$0$02025-12
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
Widows Sons IncHuman services501(c)(3)2019$0$02024-12

By cause in Putnam, 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.