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Data / Nonprofits / Massachusetts / Mutual and membership benefit

Mutual and membership benefit nonprofits in Massachusetts: 351 registered with the IRS

351 mutual and membership benefit nonprofits are registered with the IRS in Massachusetts, 45 of them 501(c)(3) charities; the 160 that report revenue took in $4.42 billion. The most are in Boston (51), Heritage Dr N Qu (8), Holyoke (7). The largest by revenue: Tufts Health Public Plans Inc ($2.57 billion), Northrop Grumman Veba Master Trust I ($1.34 billion), Gpu Companies Health Care Plan for Nonbargaining Retirees ($133.3 million).

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

OrganizationCityTypeSinceRevenueAssetsFiling
Tufts Health Public Plans IncCanton501(c)(4)2017$2.57 billion$988.4 million2024-12
Northrop Grumman Veba Master Trust IQuincy501(c)(9)1988$1.34 billion$249.5 million2024-12
Gpu Companies Health Care Plan for Nonbargaining RetireesHeritage Dr N Qu501(c)(9)1995$133.3 million$39.3 million2024-12
John Hancock Mutual Life Insurance Company Empl Welfare TrustBoston501(c)(9)2014$95.4 million$105.6 million2024-12
Massachusetts Institute of Technology Welfare Benefit Plans TCambridge501(c)(3)1993$55.4 million$1.16 billion2025-06
Massachusetts Life and Health Insurance Guaranty AssociationSpringfield501(c)(6)$40.4 million$58.3 million2025-12
Transit Employees Health and Welfare FundBoston501(c)(9)2019$23.2 million$30.7 million2024-12
Wayne J Griffin Electric Inc Welfare Benefit Plan TrustHolliston501(c)(9)2023$20.4 million$3.2 million2025-06
Unitarian Universalist Associationemployee Benefits TrustBoston501(c)(9)2009$18 million$4.5 million2025-06
Pinnacle West Capital Corporation Union Health Benefits Master TrustHeritage Dr N Qu501(c)(9)1994$17 million$406 million2024-12
Johnson Controls Employment Transition Benefits PlanNorton501(c)(17)2001$16.3 million$02024-12
Master Trust Agreement for Welfare BenefitsSomerville501(c)(9)2002$14.9 million$266.3 million2025-09
Ugsoa Health and Welfare Trust FundEast Wareham501(c)(9)2020$11.8 million$4.6 million2024-12
Pinnacle West Capital Corporation Non-Union Health Benefits TrustHeritage Dr N Qu501(c)(9)2019$11.4 million$50.6 million2024-12
Ophthalmic Consultants of Boston Inc Health Welfare & Benefits PlanWaltham501(c)(9)2006$10.5 million$5.5 million2024-12
NP Dr Phillips LLCBoston501(c)(25)2023$10 million$118.7 million2025-12
Workers Compensation Research InstituteWaltham501(c)(3)1986$8.1 million$15.4 million2025-06
Gpu Companies Basic Life Ins Plan for Non-Bargaining RetireesHeritage Dr N Qu501(c)(9)2002$7.9 million$13.1 million2024-12
John Hancock Mutual Life Ins Co Marketing Rep Welfare TrustBoston501(c)(9)2014$7.4 million$224.4 million2024-12
NP Crosby LLCBoston501(c)(25)2023$6.7 million$79.4 million2025-12
Boston Plasterers & Cement Masons & Asphalt Layers Loc 534 HLTH & WelfBoston501(c)(9)1972$6.1 million$8.8 million2026-03
NP 18TH & Chet LLCBoston501(c)(25)2023$6.1 million$83.1 million2025-12
NP Atlanta Infill Industrial LLCBoston501(c)(25)2018$5.9 million$69.6 million2025-12
Pinnacle West Capital Corporation Life Insurance Benefits TrustHeritage Dr N Qu501(c)(9)2019$5.9 million$71.2 million2024-12
NP Abbey LLCBoston501(c)(25)2023$5.9 million$101.8 million2025-12
NP Oak Lawn Commons LLCBoston501(c)(25)2024$5.4 million$76.9 million2025-12
NP Six Forks LLCBoston501(c)(25)2015$5 million$50.1 million2025-12
Massachusetts Laborers Legal Service FundBurlington501(c)(9)2004$3.9 million$17 million2025-12
Uaw Umass Health & Welfare Trust FundAmherst501(c)(9)2002$3.3 million$6.2 million2025-10
Nage-Seiu Local 5000 Trial Court of Mass Health and Welfare FundQuincy501(c)(9)2004$2.8 million$2.1 million2025-12
Professional Fire Fighters of Massachusetts Health and WelfareBoston501(c)(9)2009$2.7 million$205,2022025-06
NP Bangerter Crossing LLCBoston501(c)(25)2019$2.5 million$25.2 million2025-12
Iso New England Retiree Medical Dental and Life TrustHolyoke501(c)(9)2004$2.1 million$28.4 million2024-12
Proprietors of the Rural Cemetery in WorcesterWorcester501(c)(13)1942$2 million$13 million2025-12
Gardens at Gethsemane IncBoston501(c)(13)2002$1.9 million$3.6 million2025-12
Woodlawn-North Purchase Cemeteries AssocAttleboro501(c)(13)2003$1.5 million$3.6 million2025-07
CHMC Anesthesia Foundation Inc Retiree Medical Benefit TrustBoston501(c)(9)2008$1.4 million$33.9 million2025-06
Exeter Health Resources Inc Short Term Disability TrustCharlestown501(c)(9)2010$1.4 million$596,5772024-12
McOfu Retiree Health and Welfare Plan TrustLeominster501(c)(9)2016$1.4 million$14.3 million2024-12
The American City Coalition IncBoston501(c)(3)2021$1.3 million$696,1352024-12
Knickerbocker Terminus LLCBoston501(c)(25)2025$1.3 million$43.5 million2025-06
Al-MarhamaBelmont501(c)(13)2018$1.1 million$1.4 million2024-12
National Correctional Employees Union Trust FundNorthampton501(c)(9)2010$1.1 million$262,8492024-06
Ibew Local 7 Supplemental Health & Welfare FundSpringfield501(c)(9)2009$1.1 million$5.8 million2025-08
New England Police Benevolent Association Health and WelfareLeominster501(c)(9)2018$1 million$1.5 million2025-06
Central Cemetery Association of RandolphBoston501(c)(13)1964$991,551$6.8 million2025-03
Tufts Medical Center-Employee After-Tax Contribution TrustBoston501(c)(9)2009$789,625$6.8 million2024-12
Boston Plasterers and Cement Masons Sub Fund Local Union 534Dorchester501(c)(9)2003$698,225$2.9 million2025-09
Retirees Health Insurance Trust FundRockland501(c)(9)2003$685,942$4.2 million2025-12
New England Venture Capital AssociationBoston501(c)(6)2018$669,120$643,6902025-12
Amherst Cemetery AssociationAmherst501(c)(13)1947$656,995$2.9 million2026-01
CHMC Otolaryngologic Foundation Inc Voluntary Employees Benefit PlanBoston501(c)(9)2018$643,788$14.2 million2025-12
Gpu Companies Basic Life Ins Plan for Bargaining Unit RetireesHeritage Dr N Qu501(c)(9)2002$557,041$17.3 million2024-12
University of Massachusetts-Seiu Local 888 Health & Welfare FundBraintree501(c)(9)2005$518,649$264,4642025-12
Fraternal Order of EaglesEast Freetown501(c)(8)1991$487,787$335,9682024-05
William Sutton Lodge Trustees BLDGSaugus501(c)(10)2020$459,320$1.8 million2025-08
Hopedale Village CemeteryHopedale501(c)(13)2024$443,042$2.5 million2025-01
Teamsters Local 25 Training Fund IncBoston501(c)(9)2016$440,614$708,6132025-12
Masspace IncBoston501(c)(6)2018$427,660$83,9142025-12
Fraternal Order of EaglesEast Weymouth501(c)(8)1991$372,709$767,8662025-05
Mount Adnah Cemetery CompanyGloucester501(c)(13)2004$355,897$1.2 million2025-10
Knights Templar of the United States of America Boston CommandeBoston501(c)(10)2026$338,289$8.6 million2025-08
Saint Fidelis Cemetery Support FoundationBoston501(c)(3)2003$316,580$351,4162025-12
Clark Shores Water CorporationLakeville501(c)(12)2024$314,554$3.6 million2025-12
Sons of Italy in AmericaMethuen501(c)(8)1941$313,481$276,9642024-12
Benevolent & Protective Order of Elks of the USANatick501(c)(8)1951$299,697$586,4142026-03
Fern Hill Cemetery CorporationHanson501(c)(13)2008$289,856$2.4 million2025-12
HBS Health Industry Alumni Association IncSudbury501(c)(6)2002$271,025$382,8132025-12
Braintree Lodge 413 Loyal Order of MooseBraintree501(c)(8)2025$264,920$1.4 million2025-04
Pride of Lynn Cemetery CorpSwampscott501(c)(13)2018$247,293$2.2 million2026-04
Miaa Msaa Voluntary Beneficiary Association TrustFranklin501(c)(9)2010$239,563$1.9 million2025-06
Cardiovascular Surgical Foundation Inc Retiree Medical Savings AcctBoston501(c)(9)2026$238,354$1.6 million2025-09
Side By Side Charitable Organization IncAuburn501(c)(3)2016$237,833$71,9992025-12
Worcester Bnai Birth Cemetery CorpWorcester501(c)(13)2014$232,004$945,8592025-12
Master Wardens & Members of the Grand Lodge of Masons in MassWayland501(c)(10)1954$220,171$3.9 million2025-08
Woodside Cemetery CorpYarmouth Port501(c)(13)1977$219,899$1.9 million2025-12
Holyoke KnightsHolyoke501(c)(8)2023$210,560$65,6222025-12
Wcribma-VebaBoston501(c)(9)2006$209,745$8.2 million2024-12
Needham Cemetery AssociationNeedham501(c)(13)2000$207,141$906,4582025-12
Dedham Lodge 189 Loyal Order of MooseDedham501(c)(8)2021$202,798$648,7832026-04
West Springfield Police Club and Relief AssociationWest Springfield501(c)(9)2024$188,171$1.4 million2025-12
Yarmouth Lodge 2270 Loyal Order of Moose IncSouth Yarmouth501(c)(8)2022$186,142$153,5462026-04
WWT IncNorwood501(c)(12)2001$181,316$773,0512025-12
Tiffany Club New EnglandBoston501(c)(3)2014$181,289$6,8082023-06
Tewksbury Cemetery CorpTewksbury501(c)(13)1942$167,482$341,3872025-12
Boston Pediatric Neurosurgical Foun Dation Inc Veba TrustBoston501(c)(9)2026$152,631$152,7442025-09
Glidden Cemetery AssociationWenham501(c)(13)2023$146,004$997,9392025-12
Tufts Medical Center Retirement Savings Account Plan - Hospital-CoBoston501(c)(9)2009$142,446$1.7 million2024-12
Veba Retiree Msa Plan for Ma Nurses AssocCanton501(c)(9)2017$140,795$1.3 million2025-12
International Order of the Rainbow GirlsRevere501(c)(3)1942$140,019$857,8952026-02
Massachusetts Board of Bar Overseers Welfare TrustBoston501(c)(9)2014$132,096$3.5 million2025-12
Boston Public School Teachers Retirement FundBoston501(c)(11)1950$124,815$1.2 million2025-08
Xi Sam-Fenway Alumni CorporationBoston501(c)(7)2009$123,730$316,0222024-12
Foundation and Marine Contractors Association of New England IncFramingham501(c)(6)2023$123,305$136,4562025-09
Boston Muslim Cemetery CorporationMedford501(c)(13)2022$120,346$1 million2024-12
Knights Templar of the United States of AmericaBoston501(c)(10)1964$118,467$2.1 million2024-08
Massachusetts State Grange Patrons of Husbandry IncUpton501(c)(8)1940$115,742$30,5422025-09
Pittsfield Masonic AssociationPittsfield501(c)(10)2025$112,205$305,8202025-09
High Street Cemetery AssociationHingham501(c)(13)1934$106,450$850,5342025-03
South Easton Cemetery CorporationSouth Easton501(c)(13)2015$105,732$122,0812025-12
Greenfield Lodge No 997 Loyal Order of MooseGreenfield501(c)(8)2022$104,541$338,7042025-04
Sons of Italy in AmericaNatick501(c)(8)1941$100,867$377,6242025-09
Royal Arch Masons of Massachusetts Concord ChapterConcord501(c)(10)2026$96,916$2.2 million2025-08
Sudbury America Legion 191Sudbury501(c)(19)2014$96,631$23,1672025-12
Writing ThroughChilmark501(c)(3)2015$96,179$58,4752025-12
Village Cemetery Corp-No RTH EastonMarshfield501(c)(13)1946$95,349$1.4 million2025-09
York Rite Office IncBoston501(c)(10)2024$95,159$12,2862025-08
Harmony Cemetery CorporationGeorgetown501(c)(13)2008$94,439$597,8702025-12
Amity Mosaic Lodge Af & MaDanvers501(c)(10)2020$91,979$293,1682025-08
Fraternal Order of EaglesChicopee501(c)(8)2025$91,082$13,6682019-05
Propeller Club of BostonBoston501(c)(6)2019$89,623$62,2052025-12
St Pauls Royal Arch ChapterBoston501(c)(10)2026$86,282$987,0532025-08
Duxbury American Legion Post 223Duxbury501(c)(19)2020$85,108$467,3082025-06
Groton Cemetery Association IncGroton501(c)(13)2020$84,346$505,9532025-12
Mansfield Spring Brook Cemetery CorpMansfield501(c)(13)2019$82,374$319,0342026-02
Central Massachusetts Chiefs of Police AssociationBlackstone501(c)(3)2022$80,917$256,8162025-12
Master Wardens & Members of the Grand Lodge of Masons in MassNorthboro501(c)(10)1954$78,296$1.1 million2024-12
New Bedford Lodge No 914 Loyal Order of MooseNew Bedford501(c)(8)2022$77,196$570,8402025-04
Hingham Police AssociationHingham501(c)(3)2008$75,999$224,8022025-06
Sons of Italy in AmericaNewton501(c)(8)1941$71,557$34,6202025-12
Pleasant Water Inc Attn William J CorcoranS Yarmouth501(c)(12)2021$66,317$183,9222024-12
Newton Police Benefit Association IncWest Newton501(c)(9)2020$65,953$1.1 million2025-12
Local 481 Iatse Health and Welfare FundWoburn501(c)(9)2000$61,237$77,0092026-03
Master Wardens & Members of the Grand Lodge of Masons in MassSalem501(c)(10)1954$59,516$1.5 million2026-08
Master Trust for the Gpu Companies Long Term DisabilityHeritage Dr N Qu501(c)(9)1998$52,484$02024-12
Master Wardens & Members of the Grand Lodge of Masons in MassFall River501(c)(10)1954$52,150$391,9332025-08
American LegionSouth Boston501(c)(19)1946$51,295$13,7772025-12
Village Cemetery Association of WeymouthWeymouth501(c)(13)2000$51,012$184,9662025-12
Independent Order of Odd FellowsNantucket501(c)(8)1962$48,922$1.1 million2025-09
Fraternal Order of EaglesLeicester501(c)(8)1991$47,931$16,2682025-05
Evergreen Cemetery Association IncMedway501(c)(13)2022$47,320$77,5482025-12
Master Wardens & Members of the Grand Lodge of Masons in MassWayland501(c)(10)1954$46,000$310,9202025-08
Bruggerman-Urban Cementary Trust Fbo St Nicholas Ukrainian Catholic ChuLenox501(c)(13)2000$42,824$153,0952025-12
Medford Police Relief Association IncWest Medford501(c)(8)2005$42,066$389,2932025-12
Ancient Egyptian Arabic Order Syria Temple 31Dorchestr Center501(c)(8)2023$41,794$316,9912022-10
Stoughton Police Relief Association IncStoughton501(c)(9)2015$39,602$63,2842023-12
Katie Strong FoundationDorchestr Center501(c)(3)2022$33,137$19,9262024-12
Furnace Village Cemetery Corporation of EastonEaston501(c)(13)2009$31,855$257,8932026-03
Master Wardens & Members of the Grand Lodge of Masons in MassNew Bedford501(c)(10)1954$31,313$310,8882026-08
Master Wardens and Members of the Grand Lodge of Masons in MassachusNorth Grafton501(c)(10)1954$28,410$530,6622025-08
The Proprietors of the South Hadley Falls CemeterySouth Hadley501(c)(13)2009$26,626$178,8082025-12
Knights of ColumbusSudbury501(c)(8)1940$23,580$586,8772025-12
Chatham Harwich Newcomers Club CorporationHarwich501(c)(7)2018$20,681$45,6072025-08
Columbus Club of Abington IncAbington501(c)(8)2022$19,910$33,0692024-12
World Design Weeks LimitedNewton HLDS501(c)(6)2020$19,483$47,5252025-12
Merrimack Valley Benevolence Association IncMethuen501(c)(6)2016$19,252$222,3632025-06
Fall River Industrial Park Association IncFall River501(c)(6)2024$17,500$154,6372025-12
Hatfield Lions Club IncHatfield501(c)(4)2025$16,217$2,9362023-06
Smiley FundW Hyannisport501(c)(3)2022$14,753$14,2002025-04
Foxboro Warriors High School Hockey IncFoxboro501(c)(3)2023$13,899$2,3022024-12
First Parish Cemetery Association of NorwellNorwell501(c)(13)1985$13,699$755,7152026-04
Ethiopian Taxi Drivers Mutual Association in BostonDedham501(c)(3)2025$12,880$02025-12
The Senior House CorporationLexington501(c)(7)2025$12,206$18,5662024-12
John Nag Naglieri Memorial Golf TournamentPeabody501(c)(3)2021$10,271$6,2272025-12
Fraternal Order of EaglesWatertown501(c)(8)1991$9,837$187,6252025-05
Lynnfield Police AssociationLynnfield501(c)(5)2014$6,343$63,0372026-06
Union Cemetery Co of Bellingham IncMendon501(c)(13)2009$4,134$27,8072024-12
United Food and Cwu Local 1459 Educ Safety and Industry Trust FundSpringfield501(c)(9)2002$254$100,2832025-10
Christs Church Longwood Cemetery CorporationBrookline501(c)(13)2013$3$25,5592024-12
Acacia Chapter No 80 Grand Chapter of Ma Order of the Eastern StarDracut501(c)(8)2024$0$02026-02
Ahac Centurion SGTS IncBedford501(c)(4)2025$0$02026-01
Alpha Kappa Sigma Fraternity IncRoxbury501(c)(7)2026
American Federation of State County & Municipal EmployeesBoston501(c)(5)1957$0$02025-12
American Federation of State County & Municipal EmployeesBoston501(c)(5)1957$0$02025-12
American Friendship Cemetery AssociationQuincy501(c)(13)2022$0$02025-12
American LegionRockland501(c)(19)1946$0$02025-12
American Scallop Association IncN Dartmouth501(c)(6)2015$0$02026-03
Ancient Craft Widows SonsBillerica501(c)(3)2023$0$02024-12
Anjali House Us IncChilmark501(c)(3)2015$0$02024-12
Association of Fertility Awareness ProfessionalsBelmont501(c)(3)2022$0$02025-04
Association of Operating Room Nurses IncMilton501(c)(6)1969$0$02025-06
Association of Records Managers and Administrators New EnglandDedham501(c)(6)2026$0$02026-06
Attleboro Mutual Liquidating TrustHolyoke501(c)(15)2005
Belleville Cemetery Association of Newburyport MaNewburyport501(c)(13)2015$0$02025-12
Bellingham Police AssociationBellingham501(c)(8)2026$0$02025-12
Bernardston Cemetery CorpBernardston501(c)(13)2014$0$02025-12
Billerica Police Relief Association IncBillerica501(c)(9)2019$0$02024-12
Bishop Philip Garrigan Assembly No 406Athol501(c)(8)2014$0$02025-06
Blackstone Cemetery CorporationBlackstone501(c)(13)2025
Bourne Cemetary Association IncMonument BCH501(c)(13)2026
Boxford Village Cemetery CorporationBoxford501(c)(13)2010$0$02026-03
Boxford Village Cemetery Perpetual Care TrustBoxford501(c)(13)2014$0$02025-12
Buckland Union Cemetery Association IncBuckland501(c)(13)2023$0$02025-12
Cameroon Social ClubDracut501(c)(3)2026
Catholic Association of ForestersBraintree501(c)(8)1941$0$02025-12
Charles River Insurance CompanyDedham501(c)(15)2005
Chebra Kadisha of ChelseaMarblehead501(c)(13)2014$0$02025-12
Chelmsford Police Patrolmans Union Nepba Local 6N Chelmsford501(c)(8)2025$0$02025-06
Childrens Orthopedic Surgery Foundation Inc Veba TrustBoston501(c)(9)2026
Christ Church Unity Inc Irrv Trust 1998Brookline501(c)(3)1999
Church Hill Cemetery CorpNorwell501(c)(13)2025$0$02025-12
Connecticut Association of Public Insurance Adjusters IncBillerica501(c)(6)2015$0$02025-12
Corona Chapter No 205 of Ma Order of the Eastern StarSpringfield501(c)(8)2019$0$02026-03
Coudrin Charitable TrustFarihaven501(c)(3)1994
Cushing Cemetery CorporationMattapoisett501(c)(13)2024$0$02025-12
Daniel & Jesse Putnam Burial Ground AssociationEssex501(c)(13)2010$0$02025-12
Diemand Family Cemetery CorporationMillers Falls501(c)(13)2025$0$02025-12
Disabled American VeteransWoburn501(c)(4)1942$0$02024-12
Division 18 Aoh Club IncSalem501(c)(10)2016$0$02025-09
Dracut Police Association IncDracut501(c)(3)1997$0$02026-05
Ellis Cemetery CorporationMattapoisett501(c)(13)2016$0$02026-04
Fortunato VFW Post 545 Non-Profit CorporationSalem501(c)(19)2018$0$02025-12
Fraternal Order of EaglesNorth Adams501(c)(8)1991$0$02026-05
Fraternal Order of PoliceSterling501(c)(8)2022$0$02024-12
Fraternal Order of Police Hull Lodge No 66Hull501(c)(8)2025
Friends of Jennings HillSouth Easton501(c)(3)2020$0$02025-12
Friends of Swandale Cemetery IncMendon501(c)(3)2024$0$02024-12
Friends of Whitman Elderly and Disa Bled IncWhitman501(c)(3)2026
Friends of the Barre Hardwick Senior Center A Non Profit CorpBarre501(c)(3)2025$0$02025-12
Friends of the Massachusettsmemorial Cemetary at Agawam IncChicopee501(c)(3)2006$0$02025-12
Friends of the Old Burying GroundBrookline501(c)(13)2004$0$02023-12
Graham Hale Gardner Fund IncMarblehead501(c)(3)2017$0$02024-12
Grand Chapter PF MassachusettsWestwood501(c)(8)1940$0$02026-03
Grand Chapter of Ma Order of the Eastern StarNatick501(c)(8)2024$0$02025-03
Grand Chapter of Ma Order of the Eastern StarNorth Adams501(c)(8)1940$0$02025-03
Grand Chapter of Ma Order of the Eastern StarAuburn501(c)(8)2021$0$02026-08
Grand Chapter of Ma Order of the Eastern StarMaynard501(c)(8)1940$0$02025-03
Grand Chapter of Ma Order of the Eastern StarMillis501(c)(8)1940$0$02026-02
Grand Chapter of Ma Order of the Eastern StarNorth Reading501(c)(8)1940$0$02026-03
Grand Chapter of Ma Order of the Eastern StarShutesbury501(c)(8)1940$0$02026-02
Grand Chapter of MassachusettsOnset501(c)(8)1940$0$02026-03
Grand Royal Arch Chapter of Massachusetts IncBoston501(c)(8)2025$0$2.8 million2025-08
Greater Boston Choral Consortium IncBoston501(c)(3)2025$0$02025-07
Green Burial Massachusetts Cemetery IncLenox501(c)(13)2019$0$02025-12
Hannah Shaw Chapter No 147 Order of the Eastern StarWalpole501(c)(8)2021$0$02026-02
Harmony Cemetery CorporationBoxford501(c)(13)2019$0$02025-12
Harvard Educators AssociationHarvard501(c)(5)2025$0$02026-06
Heard Chapter No 94 of Ma Order of the Eastern StarBeverly501(c)(8)2021$0$02026-02
Hebrew CemeteryFall River501(c)(13)2020$0$02025-12
Hiram O Taylor Post 189 American Legion Dept of Ma IncSterling501(c)(19)2025$0$02025-06
Holyoke Educators AssociationHolyoke501(c)(5)2015$0$02025-06
Houghton Royal Arch ChapterMarlborough501(c)(10)2022$0$02026-08
Independent Order of Odd FellowsOrleans501(c)(8)1962$0$02024-04
Independent Order of Odd FellowsMedway501(c)(8)1962$0$02025-09
Independent Order of Odd FellowsWinthrop501(c)(8)1962$0$02024-04
Kingston Police Fraternal Order of Police Lodge 64Kingston501(c)(8)2024$0$02024-06
Kiwanis Club of Hanson IncHanson501(c)(4)2025$0$02025-09
Knights Templar of the United States of AmericaLowell501(c)(10)1964$0$02025-06
Knights Templar of the United States of AmericaDedham501(c)(10)1964$0$02025-12
Knights Templar of the United States of AmericaConcord501(c)(10)1964$0$02025-08
Knights Templar of the United States of AmericaAmherst501(c)(10)1964$0$02025-06
Knights of ColumbusHolyoke501(c)(8)1940$0$02025-12
Knights of ColumbusMethuen501(c)(8)1940$0$02025-12
Knights of ColumbusIpswich501(c)(8)1940$0$02026-06
Knights of ColumbusChelsea501(c)(8)1940$0$02025-12
Knights of ColumbusWebster501(c)(8)1940$0$02025-12
Knights of ColumbusBrighton501(c)(8)1940$0$02025-12
Knights of ColumbusBoylston501(c)(8)1940$0$02025-12
Knights of ColumbusHull501(c)(8)1940$0$02025-12
Knights of ColumbusSomerset501(c)(8)1940$0$02026-06
Knights of ColumbusAdams501(c)(8)1940$0$02025-12
Knights of ColumbusGroveland501(c)(8)1940$0$02025-12
Knights of ColumbusE Wareham501(c)(8)1940$0$02024-12
Knights of Columbus CouncilWilmington501(c)(8)2014$0$02025-12
Knights of Columbus Council 128 MelroseMelrose501(c)(8)2019$0$02025-06
Knights of Columbus Valencia Council 80Milford501(c)(8)2017$0$02025-12
Laborers Local 22 Building CorporationMalden501(c)(2)2003$0$02025-12
Lambda Alpha InternationalBoston501(c)(6)1968$0$02023-12
Les Enfants Des Esseniens 9Lynn501(c)(3)2025$0$02025-12
Les Fils de Saint Jean No 7Malden501(c)(3)2025$0$02025-12
Lexington Firefighters Health and Welfare FundLexington501(c)(4)2000$0$02025-12
Local 2321 Benevolent Fund IncNorth Andover501(c)(3)2015$0$02025-12
Local 509 Staff UnionMarlborough501(c)(5)2023$0$02025-06
MHCH Foundation TrustBoston501(c)(3)2014$629,8792025-12
Massachusetts Academy of AudiologyincBoston501(c)(6)2014$0$02024-12
Massachusetts Black Lawyers AssociationBoston501(c)(6)2013$0$231,1532024-12
Massachusetts Cemetery Association IncSharon501(c)(6)2017$0$02024-12
Massachusetts Surgeons Lodge Fraternal Order of Police IncNewton Center501(c)(10)2010$0$02025-12
Master Wardens & Members of the Grand Lodge of Masons in MassBraintree501(c)(10)1954$0$02025-12
Master Wardens & Members of the Grand Lodge of Masons in MassLakeville501(c)(10)1954$0$02025-08
Master Wardens & Members of the Grand Lodge of Masons in MassNorth Adams501(c)(10)1954$0$02026-08
Master Wardens & Members of the Grand Lodge of Masons in MassSterling501(c)(10)1954$0$02025-08
Master Wardens & Members of the Grand Lodge of Masons in MassCotuit501(c)(10)1954$0$02024-12
Master Wardens & Members of the Grand Lodge of Masons in MassChatham501(c)(10)1954$0$02024-08
Master Wardens & Members of the Grand Lodge of Masons in MassSwansea501(c)(10)1954$0$02025-08
Master Wardens & Members of the Grand Lodge of Masons in MassBourne501(c)(10)1954$0$02026-08
Master Wardens & Members of the Grand Lodge of the Masons in MassFiskdale501(c)(10)1954$0$02025-08
Master Wardens & Members of the Grand Lodge of the Masons in MassStoughton501(c)(10)1954$0$02022-12
Master Wardens & Members of the Grand Lodge of the Masons in MassReading501(c)(10)1954$0$02026-08
Master Wardens and Members of the Grand Lodge of Masons in MassMarlborough501(c)(10)1954$0$02025-08
Master Wardens and Members of the Grand Lodge of Masons in MassHopkinton501(c)(10)1954$0$02025-08
Middle Farms Cemetery AssocWestfield501(c)(13)2011$0$02025-12
Miles and Smiles for HadleySheffield501(c)(3)2022$0$02024-12
Mount Everett Cemetery AssociationGT Barrington501(c)(13)2010$0$02025-12
Mount Holyoke Chapter of Royal Arch MasonsHolyoke501(c)(10)1944$0$02025-08
Mount Horeb and Rose of Sharon Bene Volent Society IncDorchester501(c)(3)2026
Mt Pleasant Cemetery Association IncGloucester501(c)(13)2014$0$02025-04
Mtama IncFitchburg501(c)(3)2021$0$02025-12
NP Hawkins Press LLCBoston501(c)(25)2026
Nantucket Cemetery IncNantucket501(c)(13)2019$0$02025-12
Nashoba Valley Court 13 Order of the Amaranth Commonwealth of MaConcord501(c)(10)2016$0$02026-01
New England Business Brokers Association IncAttleboro501(c)(6)2026$0$02025-12
New England Ceo Network IncWrentham501(c)(6)2026$0$02025-12
New England Regional User GroupGardner501(c)(3)2025$0$02025-12
North Cemetery AssociationSouthborough501(c)(13)2014$0$02025-09
Norwood Police Patrolmens Union IncNorwood501(c)(5)2015$0$02025-12
Order of the Amaranth Inc Supreme CouncilQuincy501(c)(8)1940$0$02026-03
Order of the Amaranth Inc Supreme CouncilFramingham501(c)(8)1940$0$02025-12
Pacific Lodge Building AssociationAmherst501(c)(10)2021$0$02025-08
Pine Grove Cemetery AssociationSheffield501(c)(13)2015$0$02024-04
Pine Island Cemetery CorporationMattapoisett501(c)(13)1999$0$02026-04
Plastic Surgical Nursing Certification Board IncBeverly501(c)(6)2013$0$02024-12
Proprietors of the Burnett Burial ParkWaltham501(c)(13)2013$0$02025-12
Proprietors of the Fox CemeteryBerkley501(c)(13)2017$0$02025-12
Prospect Hill Cemetery CharitabletrustNantucket501(c)(3)2007$73,5342024-12
Rock Cementary AssociationMiddleboro501(c)(13)2023$0$02022-12
Rotary Club of the Bridgewaters IncE Bridgewtr501(c)(3)2023$0$02025-06
Royal Arch Masons of MassachusettsFitchburg501(c)(10)2021$0$02024-10
Sagamore Cemetery Association IncSagamore501(c)(13)2022$0$02025-12
Sampson Cemetery AssociationLakeville501(c)(13)2009$0$02025-12
Sands of Time Widows Sons of Massachusetts IncWestford501(c)(3)2023$0$02026-01
Scituate Teachers Association IncScituate501(c)(5)2026$0$02026-06
Shepardville Cemetery Association IncMansfield501(c)(13)2024$0$02025-12
Shrewsbury Fire and Police Relief AssociationShrewsbury501(c)(9)2018$0$02024-12
Sons of Italy in AmericaBraintree501(c)(8)1941$0$02025-12
Sons of Italy in AmericaWorcester501(c)(8)1941$0$02024-12
Sons of Italy in AmericaWinchester501(c)(8)1941$0$02024-12
Sons of Italy in AmericaNorthborough501(c)(8)1941$0$02025-06
Sons of Italy in AmericaBurlington501(c)(8)1941
Sons of Italy in AmericaFitchburg501(c)(8)1941$0$02025-12
Sons of Italy in AmericaMarblehead501(c)(8)1941$0$02023-12
South Monument Cemetery CorporationAcushnet501(c)(13)2024$0$02025-12
South Shore Chapter of the Military Officers Association of AmericaWeymouth501(c)(19)2020$0$02025-12
St Ann By the Sea- Myles Standish Council No 6649 Knights ofGreen Harbor501(c)(8)2021$0$02024-12
St Michael Archangel Lodge 630 Polish National SocietyLynn501(c)(8)2014$0$02025-12
Stern-Leach Relief AssociationSaugus501(c)(9)2012$0$02024-12
Swan Lake Cemetery Association IncSouth Dennis501(c)(13)2016$0$02025-12
Taunton Police Mutual Benefit Association IncTaunton501(c)(9)2014$0$02025-12
Temple Beth El Cemetery CorpWakefield501(c)(13)2010$0$02024-12
Temple Emanuel Cemetery AssociationAndover501(c)(13)2016$0$02024-12
The Henry Price LodgeBoston501(c)(10)2026
The West Wrenthem Cemetery CorpWrentham501(c)(13)2015$0$02025-12
Trust Insurance Company in LiquidationHolyoke501(c)(15)2005
Udt ClubBoston501(c)(10)2023$0$02025-08
United Lebanese Cemetery CorporationLawrence501(c)(13)2006$0$02024-12
Us-China Business & Cultural Exchan Ge Association IncFramingham501(c)(3)2026
Veterans of Foreign Wars Dept of Massachusetts 9 VFW DistrictHousatonic501(c)(19)2023$0$02025-12
Vineyard Power Cooperative IncVineyard Haven501(c)(12)2012$0$02025-12
Ware Business & Civic Association IncWare501(c)(6)2014$0$02025-12
Ware Knights of ColumbusWare501(c)(8)2017$0$02025-12
Wareham Firemens AssociationWareham501(c)(3)2020$0$02025-12
Water Ridge Realty CorporationBoston501(c)(25)2017$0$02025-06
Wellesley Police Relief AssociationWellesley501(c)(9)2020$0$02025-12
Wenham Firemens Relief AssociationWenham501(c)(9)2013$0$02025-12
Wia BostonDedham501(c)(6)2023$0$02025-12
Willard Family Association of America IncGrafton501(c)(3)2016$0$02025-12
William H Carney LodgeNew Bedford501(c)(3)2024
Women of the Moose Woburn Chapter 2101Woburn501(c)(8)2026
Woodland Dell Cemetery AssociationWilbraham501(c)(13)$0$725,1712023-03
Woodlands Cemetery AssociationGranville501(c)(3)2020$0$02025-12
Kaiser Found Health Plan Inc Retiree Health & Welfare Plan TrustHeritage Dr N Qu501(c)(9)2016$-101,775,241$5.39 billion2024-12

Every nonprofit in Massachusetts

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.