Data / Nonprofits / Connecticut / Mutual and membership benefit
Mutual and membership benefit nonprofits in Connecticut: 227 registered with the IRS
227 mutual and membership benefit nonprofits are registered with the IRS in Connecticut, 24 of them 501(c)(3) charities; the 90 that report revenue took in $245.8 million. The most are in New Haven (12), Hartford (9), Stratford (8). The largest by revenue: Yale University Retiree Health Benefits Coverage Trust ($114.9 million), Raytheon Welfare Benefits Trust ($64 million), Utc Welfare Benefits Plan ($13.7 million).
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Every organization, largest by revenue first
| Organization | City | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| Yale University Retiree Health Benefits Coverage Trust | New Haven | 501(c)(3) | 1997 | $114.9 million | $1.24 billion | 2025-06 |
| Raytheon Welfare Benefits Trust | Farmington | 501(c)(9) | 1997 | $64 million | $3.2 million | 2024-12 |
| Utc Welfare Benefits Plan | Farmington | 501(c)(9) | 2016 | $13.7 million | $5.4 million | 2024-12 |
| Connection Inc Employee Benefit Trust | Middletown | 501(c)(9) | 2009 | $7.5 million | $3.5 million | 2024-12 |
| Ferguson Electric & Ferguson Mech Employees Welfare Benefits Trust | Plainville | 501(c)(9) | 2021 | $4.5 million | $352,963 | 2024-12 |
| New Mexico Health Connections | Farmington | 501(c)(29) | 2012 | $4.2 million | $20.3 million | 2025-12 |
| Mountain Grove Cemetery Association | Bridgeport | 501(c)(13) | 1936 | $3.9 million | $58.1 million | 2025-12 |
| Connecticut Education Association Health and Welfare Benefits Trust | Hartford | 501(c)(9) | 2003 | $3.7 million | $21.8 million | 2025-06 |
| Cedar Hill Cemetery Association | Hartford | 501(c)(13) | 1926 | $3.7 million | $37.3 million | 2025-09 |
| New York State Electric and Gas Co Veba Trust | Orange | 501(c)(9) | 2008 | $2.4 million | $3.9 million | 2025-12 |
| Spark Institute Inc | Simsbury | 501(c)(6) | 2012 | $2.2 million | $2.7 million | 2024-12 |
| Willowbrook Cemetery Association Inc | Westport | 501(c)(13) | 2007 | $2 million | $7.5 million | 2025-12 |
| Connecticut Renaissance Inc Veba Trust | Shelton | 501(c)(9) | 2006 | $1.5 million | $600,231 | 2025-04 |
| Trust Agreement for Post-Retirement Medical Plan for Union Employees O | Orange | 501(c)(9) | 1998 | $1.5 million | $696,736 | 2025-12 |
| Medical and Dental Plan for Union Employees of Aquarion Water Compan | Bridgeport | 501(c)(9) | 2007 | $1.5 million | $15.7 million | 2024-12 |
| Coordinated Health Mutual Inc | Farmington | 501(c)(29) | 2013 | $1.3 million | $13.2 million | 2025-12 |
| Bloomfield Cemetery Association | Bloomfield | 501(c)(13) | 2001 | $1 million | $9.9 million | 2025-12 |
| Northeast Transportation Co Inc Voluntary Employees Beneficiary Trust | Waterbury | 501(c)(9) | 1999 | $858,838 | $6.1 million | 2025-06 |
| Oregons Health Co Op | Farmington | 501(c)(29) | 2013 | $829,875 | $20.1 million | 2025-12 |
| Riverside Cemetery Association Norwalk Inc | Norwalk | 501(c)(13) | 2022 | $782,197 | $2 million | 2024-12 |
| Eastern Star Charity Foundation of Conn Inc | Wallingford | 501(c)(3) | 1964 | $774,579 | $8.6 million | 2026-02 |
| Womens Association of Venture & Equity Inc | Stratford | 501(c)(6) | 2014 | $679,063 | $211,866 | 2024-12 |
| Farmington Cemetery Association | Farmington | 501(c)(13) | 1945 | $525,567 | $12.7 million | 2026-05 |
| Evergreen Health Cooperative Inc | Farmington | 501(c)(29) | 2013 | $463,097 | $13.9 million | 2025-12 |
| Benevolent & Protective Order of Elks of the USA | Putnam | 501(c)(8) | 1951 | $382,289 | $413,965 | 2026-03 |
| Historic Sharon Burying Ground Inc | Sharon | 501(c)(3) | 2006 | $381,181 | $950,474 | 2024-12 |
| United Union of Roofers Waterproofers & Allied Workers | Wallingford | 501(c)(9) | 2006 | $325,856 | $152,710 | 2024-12 |
| Colonial Cemeteries Inc | Stamford | 501(c)(13) | 2005 | $318,635 | $200,036 | 2024-12 |
| Lawn Cemetery Association | Shelton | 501(c)(13) | 2002 | $314,150 | $1.8 million | 2026-03 |
| Benevolent & Protective Order of Elks of the USA | Waterbury | 501(c)(8) | 1951 | $312,397 | $949,350 | 2026-03 |
| Mountain Grove Cemetery-Easton Inc | Bridgeport | 501(c)(13) | 2017 | $311,834 | $2.6 million | 2025-12 |
| Danbury Lodge No 1373 Loyal Order of Moose | Danbury | 501(c)(8) | 1935 | $306,649 | $835,584 | 2026-04 |
| Bozrah Lodge No 950 Loyal Order of Moose | Bozrah | 501(c)(8) | 2023 | $270,097 | $809,052 | 2025-04 |
| Beth Alom Cemetery Assoc Inc | New Britain | 501(c)(13) | 2007 | $265,346 | $3.7 million | 2024-12 |
| South Conn District Roofers J A C | North Haven | 501(c)(9) | 2003 | $200,945 | $596,997 | 2024-12 |
| Darien Police Assoc Inc Voluntary Employees Beneficiary Assoc Trust | Darien | 501(c)(9) | 2013 | $200,077 | $1.9 million | 2024-12 |
| Ridgefield Professional Fire Fighters Local 1739 Veba Trust Fund | Ridgefield | 501(c)(9) | 2014 | $181,579 | $2.3 million | 2025-12 |
| Mountain View Cemetery Association Inc | Sherman | 501(c)(13) | 2016 | $166,326 | $205,081 | 2025-12 |
| Wapping Cemetery Association Inc | South Windsor | 501(c)(13) | 2002 | $145,868 | $1.4 million | 2025-12 |
| Storrs Cemetery Association Inc | Willimantic | 501(c)(13) | 2023 | $142,521 | $1.4 million | 2025-12 |
| Sullivan Benson LLC Employees Welfare Benefits Trust | Plainville | 501(c)(9) | 2021 | $137,550 | $21,988 | 2024-12 |
| Jewish Cemetery Association Ofgreater New Haven Inc | Woodbridge | 501(c)(13) | 2009 | $137,201 | $211,526 | 2025-07 |
| Starr Burying Ground Association | Groton | 501(c)(13) | 1947 | $124,457 | $2.3 million | 2024-12 |
| Or Shalom - B I S C Cemetary Association Inc | Orange | 501(c)(13) | 1999 | $122,588 | $1.4 million | 2025-12 |
| Beth Hillel Synagogue Memorial Park Corporation | Bloomfield | 501(c)(13) | 2017 | $121,072 | $1.3 million | 2025-06 |
| Portland Burying Ground Association | Portland | 501(c)(13) | 2006 | $117,093 | $861,809 | 2025-12 |
| Gardens of Peace Inc | Cheshire | 501(c)(13) | 2015 | $104,647 | $956,817 | 2024-12 |
| Swedish Cemetery Inc | Portland | 501(c)(13) | 2006 | $100,896 | $595,316 | 2025-12 |
| Knights of Columbus | Fairfield | 501(c)(8) | 2017 | $95,586 | $14,358 | 2025-12 |
| New Haven Beth Israel Cemetery Association Inc | Shelton | 501(c)(13) | 2014 | $95,324 | $720,831 | 2025-12 |
| The Great Hill Hose Company Incorporated | Seymour | 501(c)(3) | 2014 | $88,573 | $417,890 | 2025-12 |
| Middlebury Cemetery Assoc Inc | Middlebury | 501(c)(13) | 2025 | $88,340 | $591,910 | 2026-06 |
| Hiram Lodge No 1 Af & Am | New Haven | 501(c)(10) | 2026 | $86,320 | $1.4 million | 2023-12 |
| Evergreen Woods Employees Scholarship Fund | North Branford | 501(c)(3) | 2002 | $85,132 | $393,382 | 2025-12 |
| Lion of CT Incorporated | New Haven | 501(c)(7) | 2024 | $84,266 | $271 | 2026-05 |
| Zeta Theta House of Kappa Gamma Fraternity | Middletown | 501(c)(7) | 2014 | $83,030 | $92,612 | 2024-06 |
| Woodland Summit Community Water Association Inc | Vernon Rockville | 501(c)(12) | 2023 | $81,807 | $39,072 | 2024-06 |
| Boxes To Boots Incorporated | Berlin | 501(c)(3) | 2018 | $78,358 | $84,476 | 2025-12 |
| Professional Association of Athlete Development Specialist Inc | West Hartford | 501(c)(6) | 2015 | $74,477 | $73,565 | 2024-12 |
| Trumbull Lodge 22 Af & Am | New Haven | 501(c)(10) | 2026 | $71,902 | $447,251 | 2025-12 |
| Jewish Cemetery Association of Greater Waterbury Inc | Southbury | 501(c)(13) | 2004 | $69,338 | $1.7 million | 2025-06 |
| New Hartford Village Cemetery Company | New Hartford | 501(c)(13) | 2022 | $64,951 | $720,311 | 2025-12 |
| First School Society | Suffield | 501(c)(13) | 2015 | $64,750 | $195,560 | 2025-06 |
| International Melges 24 Class Association Inc | Rocky Hill | 501(c)(3) | 2022 | $64,357 | $72,752 | 2025-12 |
| Greenwood Cemetery Association | Burlington | 501(c)(13) | 2014 | $63,867 | $992,887 | 2026-03 |
| Cenveo Worldwide Limited Employment Transition Benefit Trust | Stamford | 501(c)(17) | 2011 | $61,569 | $0 | 2025-12 |
| Ridgefield Cemetery Association Inc | Ridgefield | 501(c)(13) | 2025 | $61,136 | $1.4 million | 2026-03 |
| Old Saybrook Riverside Cemetery Association Incorporated | Old Saybrook | 501(c)(13) | 2000 | $60,915 | $325,897 | 2024-12 |
| Connecticut Grand Lodge of the Orde R of the Sons of Italy in America | North Haven | 501(c)(10) | 2026 | $51,120 | $120,673 | 2026-03 |
| The Masonic Building Corporation | Griswold | 501(c)(3) | 2010 | $49,293 | $44,069 | 2025-12 |
| Law Enforcement Alliance of Southington Veba Trust Fund | Southington | 501(c)(9) | 2016 | $48,075 | $150,815 | 2025-12 |
| Club Associates Inc | Wallingford | 501(c)(10) | 2026 | $44,928 | $929,133 | 2025-12 |
| Old Well Masonic Company | Norwalk | 501(c)(2) | 2025 | $39,463 | $6,274 | 2025-12 |
| Uniroyal Holding Inc Wage Benefit Trust | Naugatuck | 501(c)(9) | 2001 | $34,850 | $460,531 | 2025-12 |
| Monroe Center Cemetary Association | Bridgeport | 501(c)(13) | 2015 | $33,396 | $231,020 | 2025-06 |
| Corinthian Lodge No 104 AF&AM | Stratford | 501(c)(10) | 2017 | $32,345 | $967,242 | 2025-11 |
| Greater Hartford Italian Police Officers Association Inc | Hartford | 501(c)(7) | 2014 | $31,205 | $13,187 | 2025-12 |
| Doncasters Inc Retiree Veba Trust | Groton | 501(c)(9) | 2018 | $30,642 | $1.8 million | 2025-06 |
| Sellecks Corners Cemetery Association Inc | New Canaan | 501(c)(13) | 2018 | $28,772 | $784,721 | 2025-12 |
| Knights of Columbus | Stafford SPGS | 501(c)(8) | 1940 | $28,635 | $247,115 | 2026-06 |
| Sharon East Side Cemetery Inc | West Cornwall | 501(c)(13) | 2010 | $26,247 | $338,428 | 2024-12 |
| Connecticut Cemetery Association | New Haven | 501(c)(6) | 2007 | $23,842 | $72,556 | 2025-09 |
| Universal Fraternity 149 | Stratford | 501(c)(3) | 2022 | $21,628 | $0 | 2025-12 |
| Danbury Paid Fire Department Sickness and Surgical Fund Inc | Danbury | 501(c)(9) | 1964 | $20,768 | $221,309 | 2025-05 |
| Connecticut Valley CHP of Risk & Insur Management Society Inc | Granby | 501(c)(6) | 2026 | $20,257 | $48,451 | 2025-06 |
| Hillside Cemetery Association Inc | West Hartford | 501(c)(13) | 2020 | $11,142 | $166,640 | 2025-12 |
| Upper Merryall Cemetery Association | New Milford | 501(c)(13) | 2000 | $3,221 | $130,369 | 2024-12 |
| Brandford Police Benevolent Association | Branford | 501(c)(4) | 1999 | $2,408 | $19,552 | 2025-06 |
| Stanwich Club Inc Supplemental Unemployment Benefits Plan & Trust | Greenwich | 501(c)(17) | 2022 | $1,000 | $2,671 | 2024-12 |
| 47 Bethel Police Union Fop | Bethel | 501(c)(8) | 2026 | $0 | $0 | 2026-06 |
| Adah Chapter No 22 Order of the Eastern Star Prince Hall Affil | Hartford | 501(c)(8) | 2019 | $0 | $0 | 2025-11 |
| Agc of Connecticut Foundation Inc | Wethersfield | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Ancient Free & Accepted Masons of Connecticut | Wethersfield | 501(c)(10) | 2016 | $0 | $0 | 2025-09 |
| Ancient Free & Accepted Masons of Connecticut | Suffield | 501(c)(10) | 2017 | $0 | $0 | 2025-12 |
| Ancient Free & Accepted Masons of Connecticut | Montville | 501(c)(8) | 1943 | $0 | $0 | 2025-12 |
| Archbishop John F Whealon Assembly | Rocky Hill | 501(c)(8) | 2014 | $0 | $0 | 2026-06 |
| Ashlar Lodge No 332 Ancient Free and Accepted Masons | Meriden | 501(c)(10) | 2016 | $0 | $0 | 2025-12 |
| Aspectuck Cemetary Association Inc | Easton | 501(c)(13) | 2017 | $0 | $0 | 2025-12 |
| Bald Hill Cemetery Assoc Inc | Wilton | 501(c)(13) | 2020 | $0 | $0 | 2025-12 |
| Baxter Farms Comm Water | Tolland | 501(c)(12) | 2022 | $0 | $0 | 2026-06 |
| Beth El Keser Israel Cemetery Association Inc | New Haven | 501(c)(13) | 2012 | $0 | $0 | 2025-06 |
| Bnai Tikvoh- Sholom Cemetery Inc | Bloomfield | 501(c)(13) | 2025 | $0 | $0 | 2025-06 |
| CBSRZ Cemetery Association | Chester | 501(c)(13) | 2018 | $0 | $0 | 2026-06 |
| Center Cemetery Association of Torrington Inc | Morris | 501(c)(13) | 2010 | $0 | $0 | 2023-12 |
| Chester Cemetery Association Inc | Chester | 501(c)(13) | 2026 | |||
| College Park Section III Owners Association Incorporated | Fairfield | 501(c)(7) | 2013 | $0 | $0 | 2025-12 |
| Columbia Lodge No 25 Building Association Inc | Glastonbury | 501(c)(2) | 2014 | $0 | $0 | 2025-10 |
| Columbia West Street Burying Ground Association Inc | Columbia | 501(c)(13) | 2014 | $0 | $0 | 2026-03 |
| Columbiettes Incorpoated Supreme Council | Sandy Hook | 501(c)(10) | 1977 | $0 | $0 | 2025-08 |
| Congregation B Nai Sholom Cemetery Incorporated | Newington | 501(c)(13) | 2011 | $0 | $0 | 2026-06 |
| Connecticut Fire Department Instructors Association Inc | Hartford | 501(c)(6) | 2008 | $0 | $0 | 2025-03 |
| Connecticut Moose Association | New Milford | 501(c)(8) | 2024 | $0 | $0 | 2026-04 |
| Cornwall Hollow Cemetery Association Inc | Falls Village | 501(c)(13) | 2012 | $0 | $0 | 2025-09 |
| Cromwell Hillside Cemetery Association Inc | Cromwell | 501(c)(13) | 2022 | $0 | $0 | 2025-12 |
| Daughters of Isis of North & South America | Hartford | 501(c)(8) | 1950 | $0 | $0 | 2025-12 |
| Daughters of Scotia | Milford | 501(c)(8) | 1941 | $0 | $0 | 2026-06 |
| Dependable Engines Association Inc | Glastonbury | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Downtown Milford Business Association Inc | Milford | 501(c)(6) | 2026 | |||
| East Side Burying Ground Association of Woodbridge Inc | Old Greenwich | 501(c)(13) | 2015 | $0 | $0 | 2024-12 |
| Eastford Grove Cemetery Association | Eastford | 501(c)(13) | 2019 | $0 | $0 | 2026-03 |
| Edelweiss Lodge No 31 Order of Hermann Sons of the State of Conne | Guilford | 501(c)(8) | 2025 | $0 | $0 | 2025-12 |
| Edon Club | New Haven | 501(c)(7) | 2024 | $0 | $0 | 2025-12 |
| Elmvale Cemetery Association of Woodstock Connecticut Incorporated | E Woodstock | 501(c)(13) | 2019 | $0 | $0 | 2025-12 |
| Evergreen Cementery Association of Avon Connecticut Inc | Avon | 501(c)(13) | 1999 | $0 | $0 | 2025-12 |
| Fideliy St Johns 3 Af and Am Masons | Fairfield | 501(c)(3) | 2023 | $1.6 million | 2022-10 | |
| Firemens Benevolent Society of the City of Hartford | Newington | 501(c)(9) | 2021 | $0 | $0 | 2025-06 |
| Fish Cemetery Association | Mystic | 501(c)(13) | 2014 | $0 | $0 | 2025-04 |
| Fop Lodge 48 - Suffield Police Corp | Suffield | 501(c)(8) | 2025 | $0 | $0 | 2025-12 |
| Franklin Cemetery Association | N Franklin | 501(c)(13) | 2024 | $0 | $0 | 2025-12 |
| Franklin-Halleck Chapter No 2 Royal Arch Masons | New Haven | 501(c)(10) | 2026 | $0 | $0 | 2026-03 |
| Fraternal Order of Police | Middlebury | 501(c)(8) | 2025 | $0 | $0 | 2026-06 |
| Friends of Indian Hill Cemetery Inc | Middletown | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Gaylordsville Cemetery Association | Gaylordsville | 501(c)(3) | 2026 | |||
| Grand Boule of the Sigma Pi Phi Fraternity | Stamford | 501(c)(10) | 2010 | |||
| Hamden Fire Retirees Association Inc | Hamden | 501(c)(7) | 2018 | $0 | $0 | 2025-12 |
| Hamilton Council No 9 Royal and Select Masters of Connecticut | Meriden | 501(c)(10) | 2018 | $0 | $0 | 2026-03 |
| Hillside Cemetery Association | Storrs | 501(c)(13) | 2022 | $0 | $0 | 2025-12 |
| Historic East Lyme Cemeteries Association | East Lyme | 501(c)(13) | 2014 | $0 | $0 | 2025-12 |
| Independent Order of Odd Fellows | Waterbury | 501(c)(8) | 1962 | $0 | $0 | 2025-04 |
| Kappa Sigma Alumni Assoc of CT | Bridgeport | 501(c)(7) | 2015 | $0 | $0 | 2022-12 |
| King Solomons Temple Corporation of Woodbury | Woodbury | 501(c)(2) | 2013 | $0 | $0 | 2025-12 |
| Knights Club of Avon Inc | Avon | 501(c)(8) | 2014 | $0 | $0 | 2024-12 |
| Knights Templar of the United States of America | Meriden | 501(c)(10) | 2026 | |||
| Knights of Columbus | Glastonbury | 501(c)(8) | 1940 | $0 | $0 | 2025-12 |
| Knights of Columbus | Ridgefield | 501(c)(8) | 2014 | $0 | $0 | 2025-12 |
| Knights of Columbus | Manchester | 501(c)(8) | 1940 | $0 | $0 | 2025-12 |
| Knights of Columbus | Hartford | 501(c)(8) | 1940 | $0 | $0 | 2025-12 |
| Knights of Columbus | Stratford | 501(c)(8) | 1940 | $0 | $0 | 2025-12 |
| Knights of Columbus | New Haven | 501(c)(8) | 1940 | $0 | $0 | 2025-12 |
| Knights of Columbus | New Haven | 501(c)(8) | 1940 | $0 | $0 | 2025-12 |
| Knights of Columbus | Wilton | 501(c)(8) | 1940 | $0 | $0 | 2025-12 |
| Knights of Columbus | Derby | 501(c)(8) | 1940 | $0 | $0 | 2025-12 |
| Knights of Columbus | West Haven | 501(c)(8) | 1940 | $0 | $0 | 2025-12 |
| Knights of Columbus | New Canaan | 501(c)(8) | 1940 | $0 | $0 | 2025-12 |
| Knights of Columbus | Branford | 501(c)(8) | 1940 | $0 | $0 | 2025-12 |
| Knights of Columbus | Durham | 501(c)(8) | 1940 | $0 | $0 | 2024-12 |
| Knights of Columbus | Ansonia | 501(c)(8) | 1940 | $0 | $0 | 2025-12 |
| Knights of Columbus | Ansonia | 501(c)(8) | 2014 | $0 | $0 | 2025-12 |
| Knights of Columbus | Chester | 501(c)(8) | 1940 | $0 | $0 | 2025-12 |
| Knights of Columbus | Bethany | 501(c)(8) | 1940 | $0 | $0 | 2025-12 |
| Knights of Columbus | Marlborough | 501(c)(8) | 1940 | $0 | $0 | 2025-12 |
| Knights of Columbus 3594 St Pius X Council | Watertown | 501(c)(8) | 2022 | $0 | $0 | 2025-12 |
| Knights of Columbus No 2370 St James | Stratford | 501(c)(8) | 2025 | $0 | $0 | 2026-06 |
| Knights of Columbus the Rev Monsignor Patrick McGivney | Bridgeport | 501(c)(8) | 2023 | $0 | $0 | 2024-07 |
| Knights of the York Cross of Honour Convent General | Stratford | 501(c)(10) | 2023 | $0 | $0 | 2026-06 |
| Kol Haverim Cemetery Association Inc | Glastonbury | 501(c)(13) | 2001 | $0 | $0 | 2026-05 |
| Kpcla Ladies of Grace Divison 4TH Degree Sister Dolores Harrall | Hartford | 501(c)(8) | 2019 | $0 | $0 | 2025-12 |
| Lithuanian Cemetery Association | Terryville | 501(c)(13) | 2015 | $0 | $0 | 2025-12 |
| Luke A Lockwood Council Amd | Stratford | 501(c)(10) | 2023 | $0 | $0 | 2025-12 |
| Manchester Police Benevolent Officers Association Inc | Manchester | 501(c)(9) | 2014 | $0 | $0 | 2025-12 |
| Metropolitan Underwriting Discussion Group Inc | Monroe | 501(c)(6) | 1999 | $0 | $134,245 | 2025-04 |
| Middletown CT Tiller Association Inc | Middletown | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Milford Side Burying Ground Association | Woodbridge | 501(c)(13) | 2006 | $0 | $0 | 2025-04 |
| Mitchell Family Fundraisers | Norwalk | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Most Royal Prince Hall Grand Court Order of Cyrene | Meriden | 501(c)(8) | 2016 | $0 | $0 | 2026-02 |
| Nipsic Cemetery Association Inc | Glastonbury | 501(c)(13) | 2026 | $0 | $0 | 2025-12 |
| North Branford Fraternal Order of Police Lodge 40 | Northford | 501(c)(10) | 2025 | $0 | $0 | 2025-01 |
| North Madison West Side Cemetery Association Incorporated | Madison | 501(c)(13) | 2016 | $0 | $0 | 2026-03 |
| Northville Cemetery Association | New Milford | 501(c)(13) | 2014 | $0 | $0 | 2025-12 |
| Norwalk Cemetery Association | Stratford | 501(c)(13) | 2018 | $0 | $0 | 2024-12 |
| Nut Plains Cemetery Association of Guilford | Guilford | 501(c)(13) | 2012 | $0 | $0 | 2025-12 |
| Nutmeg Chapel No 29 | Middletown | 501(c)(10) | 2024 | $0 | $0 | 2025-12 |
| Old Burial Yard of Thirty Mile Island Inc | Higganum | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Order of Eastern Star Connecticut | Branford | 501(c)(8) | 1941 | $0 | $0 | 2025-12 |
| Order of the Amaranth Inc Supreme Council | Shelton | 501(c)(8) | 1940 | $0 | $0 | 2025-12 |
| Order of the Eastern Star Inc of Connecticut | Wallingford | 501(c)(8) | 1941 | $0 | $0 | 2026-03 |
| Oriental Lodge No 6 Free & Accepted Masons Prince Hall Incorporated | New Haven | 501(c)(10) | 2020 | $0 | $0 | 2025-07 |
| Ormont Unit 69 American Legion Auxiliary Portland Connecticut | Portland | 501(c)(19) | 2014 | $0 | $0 | 2025-12 |
| Our Saviors Cemetery Inc | Granby | 501(c)(13) | 2012 | $0 | $0 | 2025-12 |
| Park City Fraternal Order of Police Lodge 29 Inc | Bridgeport | 501(c)(8) | 2017 | $0 | $0 | 2023-12 |
| Pcu Idaho SSN 799 Cpoa | Marlborough | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Pine Meadow Cemetery Association Inc | New Hartford | 501(c)(13) | 2008 | $0 | $0 | 2025-12 |
| Plainfield Grave Guardians Association Inc | Plainfield | 501(c)(3) | 2021 | $0 | $0 | 2024-12 |
| Polish Army Veterans Association of America Inc | New Britain | 501(c)(4) | 1967 | |||
| Pomfret Cemetery Corporation | Pomfret Center | 501(c)(13) | 2011 | $0 | $0 | 2025-12 |
| Pomfret Street Cemetery Association Incorporated | Pomfret Center | 501(c)(13) | 2014 | $0 | $0 | 2024-12 |
| Ponemah Cemetery Association | Colchester | 501(c)(13) | 2010 | $0 | $0 | 2025-12 |
| Potter Memorial Inc | Pawcatuck | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Ramstein Lodge No 30 Order of Hermann Sons of the State of CT | Berlin | 501(c)(8) | 2024 | $0 | $0 | 2025-12 |
| Rediscovering History Inc | Columbia | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Rev George Deshon Assembly No 110 | Waterford | 501(c)(8) | 2025 | |||
| Rev J C Martin Council No 3901 Knights of Columbus | East Hartford | 501(c)(8) | 2023 | $0 | $0 | 2025-12 |
| Ridgefield Ladies Golf Association | Danbury | 501(c)(7) | 2014 | $0 | $0 | 2025-12 |
| Rotary Club of Meriden | Meriden | 501(c)(4) | 2018 | $0 | $0 | 2024-06 |
| Rowayton Union Cemetery Association | Rowayton | 501(c)(13) | 2014 | $0 | $0 | 2026-05 |
| Royal and Select Masters of Connect Icut | New Haven | 501(c)(10) | 2026 | $0 | $0 | 2026-03 |
| Shoreline Veterans Corporation | Branford | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Solar Lodge No 131 | Chester | 501(c)(10) | 2016 | $0 | $0 | 2024-11 |
| Sons of Hermann of the State of Connecticut 11 Germania Jr Branch | Lebanon | 501(c)(8) | 2022 | $0 | $0 | 2025-12 |
| Sons of Jacob Cemetery Incorporated | Torrington | 501(c)(13) | 2015 | $0 | $0 | 2025-12 |
| Southford Cemetery Assoc | Oxford | 501(c)(13) | 2022 | $0 | $0 | 2025-12 |
| Spartan Navy Battalion | Bridgeport | 501(c)(3) | 2024 | |||
| St Johns Lodge 14 F&AM Inc | Stamford | 501(c)(8) | 2014 | $0 | $0 | 2024-12 |
| Tall Cedars of Lebanon of North America | Coventry | 501(c)(8) | 1942 | $0 | $0 | 2025-12 |
| Telephone Employees Mut Ben 308 Trust 2030727000 | Northford | 501(c)(4) | 1993 | $0 | $0 | 2024-12 |
| The Cuheca Cemetery Association Incorporated | Quaker Hill | 501(c)(13) | 2001 | $0 | $0 | 2025-12 |
| The Ely Burying Ground Association | Lyme | 501(c)(13) | 2015 | $0 | $0 | 2025-12 |
| The Masonic Club of New London Inc | Salem | 501(c)(3) | 2025 | |||
| Tillinghast Memorial Cemetery Association Inc | Canterbury | 501(c)(13) | 2022 | $0 | $0 | 2025-12 |
| Tuscan Lodge No 17 Free & Accepted Masons Prince Hall Affiliation Inc | Hartford | 501(c)(8) | 2014 | $0 | $0 | 2025-12 |
| United Ewe Association of Connecticut Inc | Newington | 501(c)(7) | 2014 | $0 | $0 | 2025-12 |
| Virgilius Council No 185 Knights of Columbus | Newtown | 501(c)(8) | 2025 | |||
| West Neck Cemetery Association | Waterford | 501(c)(13) | 2026 | |||
| West Suffield Cemetery Association Inc of Suffield | Suffield | 501(c)(13) | 2011 | $0 | $0 | 2024-12 |
| Westchester Center Cemetery Association Inc | Colchester | 501(c)(13) | 2013 | $0 | $0 | 2024-12 |
| Woodtick Cemetery Society Inc | Wolcott | 501(c)(13) | 2012 | $0 | $0 | 2026-05 |
| The Womans Syndicate Association | Stamford | 501(c)(6) | 2015 | $-4,591 | $41,263 | 2024-12 |
Every nonprofit in Connecticut
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.