Nonprofits in Massachusetts

Nonprofits in Massachusetts. Browse 52,168 public nonprofit profiles. Review organization identities, available filing years, and their complete CharitySense profiles.

Location refers to headquarters recorded in public sources, not an organization’s service area. Classification describes its reported category and does not assess its effectiveness.

Nonprofit profiles

  1. Mass Teachers Association 406 North Brookfield Teachers Association

    EIN 046396935 · Headquarters: North Brookfield, MA, US · Employment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  2. Mass Technology Leadership Council

    EIN 042910567 · Headquarters: DEDHAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  3. Mass Theatrica

    EIN 202318158 · Headquarters: Shrewsbury, MA, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  4. Mass Uniting Inc

    EIN 451628839 · Headquarters: MARLBOROUGH, MA, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  5. Mass Warriors Basketball Corporation

    EIN 882375123 · Headquarters: Chelsea, MA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  6. Mass Xplosion

    EIN 043484551 · Headquarters: New Bedford, MA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  7. Mass-ala

    EIN 043237159 · Headquarters: Waltham, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  8. Mass-india Partnership

    EIN 812780742 · Headquarters: BOSTON, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Mass-west Enterprises Inc

    EIN 043383056 · Headquarters: SPRINGFIELD, MA, USA · Human Services · Latest available filing year: 2011 · Primary form: IRS Form 990

  10. Mass211 Inc C/o United Way of Tri-county Inc

    EIN 043514643 · Headquarters: FRAMINGHAM, MA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  11. Mass6 Snco Association

    EIN 922573859 · Headquarters: Chicopee, MA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Massa-schussers Ski Club Inc

    EIN 237381006 · Headquarters: Jamaica Plain, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  13. Massachsetts Solar Owners Association

    EIN 472832227 · Headquarters: Hatfield, MA, US · Housing & Shelter · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  14. Massachuseetts Association of Teacher Attorneys Inc

    EIN 222500393 · Headquarters: Quincy, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  15. Massachusets Major City Chiefs Inc

    EIN 550852331 · Headquarters: peabody, MA, US · Crime & Legal Related · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  16. Massachusetss Police Association Charity Fund Inc C/o Jon Bailey

    EIN 832724705 · Headquarters: WALTHAM, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  17. Massachusett Automatic Merchandising Council Inc

    EIN 110029023 · Headquarters: Mansfield, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  18. Massachusett Natick Praying Indians-Ponkapoag and Nashoba Council

    EIN 205584668 · Headquarters: WEST BRIDGEWATER, MA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. Massachusettes Congress of Lake and Pond Assocations Inc

    EIN 042689427 · Headquarters: WEST BROOKFIELD, MA, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  20. Massachusettes Progressive Animal Watchdog Society Inc

    EIN 260100201 · Headquarters: Winthrop, MA, US · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  21. Massachusetts 2020 Inc

    EIN 043533998 · Headquarters: Boston, MA, US · Social Science · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  22. Massachusetts 4-H Foundation Inc

    EIN 042303708 · Headquarters: FRAMINGHAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  23. Massachusetts Academic Decathlon Incorporated

    EIN 474565594 · Headquarters: Cambridge, MA, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  24. Massachusetts Academy of Anesthesiologist Assistants

    EIN 871549106 · Headquarters: Saugus, MA, US · Health Care · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  25. Massachusetts Academy of Audiology Inc

    EIN 205660994 · Headquarters: Boston, MA, US · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  26. Massachusetts Academy of Ballet Educational Training Association

    EIN 262052748 · Headquarters: Holyoke, MA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Massachusetts Academy of Dermatology

    EIN 042551359 · Headquarters: BOXBOROUGH, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  28. Massachusetts Academy of Family Physicians Foundation Inc

    EIN 813784060 · Headquarters: Waltham, MA, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  29. Massachusetts Academy of General Dentistry

    EIN 237240701 · Headquarters: Quincy, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  30. Massachusetts Academy of Nutrition & Dietetics

    EIN 043253489 · Headquarters: Medway, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  31. Massachusetts Academy of Sciences Corporation

    EIN 208090839 · Headquarters: Canton, MA, US · Social Science · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  32. Massachusetts Academy of Trial Attorneys

    EIN 042574799 · Headquarters: WOBURN, MA, USA · Crime & Legal Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  33. Massachusetts Accordion Association Inc

    EIN 260217603 · Headquarters: NATICK, MA, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  34. Massachusetts Ace of Clubs Inc

    EIN 043064228 · Headquarters: Quincy, MA, US · Community Improvement & Capacity Building · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  35. Massachusetts Action to Prevent Gun Violence Inc

    EIN 333017706 · Headquarters: BOSTON, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  36. Massachusetts Adoption Resource Exchange Inc

    EIN 042227431 · Headquarters: Newton, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. Massachusetts Advocates for Children Inc

    EIN 042488456 · Headquarters: BOSTON, MA, USA · Civil Rights, Social Action & Advocacy · Latest available filing year: 2024 · Primary form: IRS Form 990

  38. Massachusetts Advocates for the Arts Sciences and Humanities Inc

    EIN 043197153 · Headquarters: BOSTON, MA, US · Social Science · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  39. Massachusetts Advocates Standing Strong Inc

    EIN 043433482 · Headquarters: BOSTON, MA, USA · Civil Rights, Social Action & Advocacy · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. Massachusetts Affordable Housing Alliance Inc

    EIN 223042637 · Headquarters: DORCHESTER, MA, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. Massachusetts Afghan Alliance

    EIN 932009682 · Headquarters: Westford, MA, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Massachusetts Afl-cio Addiction Assistance

    EIN 611722323 · Headquarters: BOSTON, MA, USA · Mental Health & Crisis Intervention · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  43. Massachusetts Afl-cio Building Corporation

    EIN 030474497 · Headquarters: BOSTON, MA, USA · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990

  44. Massachusetts Afl-cio Scholarship Corporation

    EIN 043321535 · Headquarters: BOSTON, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  45. Massachusetts Afterschool Partner- Ship Inc

    EIN 205116880 · Headquarters: BOSTON, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  46. Massachusetts Aging Access Association Inc

    EIN 042799672 · Headquarters: LAWRENCE, MA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  47. Massachusetts Agriculture in the Classroom Inc

    EIN 042868605 · Headquarters: MARLBOROUGH, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  48. Massachusetts Ahiskan Turkish Association

    EIN 463926956 · Headquarters: West Springfield, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  49. Massachusetts Air And Space Museum Inc

    EIN 204897472 · Headquarters: Bedford, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. Massachusetts Air National Guard Historical Association Inc

    EIN 046387890 · Headquarters: Concord, MA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. Massachusetts Airport Management Association Inc

    EIN 043283328 · Headquarters: Plymouth, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  52. Massachusetts Albanian Americansociety

    EIN 205940445 · Headquarters: Braintree, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  53. Massachusetts Allergy & Asthma Society Inc

    EIN 042629468 · Headquarters: LEOMINSTER, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  54. Massachusetts Alliance Against Predatory Lending Inc

    EIN 464713046 · Headquarters: WORCESTER, MA, USA · Civil Rights, Social Action & Advocacy · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  55. Massachusetts Alliance for Chiropractic Philosophy Inc

    EIN 043122947 · Headquarters: Burlington, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  56. Massachusetts Alliance for Early College Inc

    EIN 873513195 · Headquarters: BOSTON, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  57. Massachusetts Alliance for Economic Development Inc

    EIN 043172007 · Headquarters: WATERTOWN, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  58. Massachusetts Alliance for Fair Competition Inc

    EIN 043540785 · Headquarters: Danvers, MA, US · Community Improvement & Capacity Building · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  59. Massachusetts Alliance for Family C Hild Cares

    EIN 412839841 · Headquarters: Boston, MA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. Massachusetts Alliance for Retired Americans

    EIN 471213627 · Headquarters: Dorchester, MA, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Massachusetts Alliance For Sober Housing

    EIN 811839101 · Headquarters: Framingham, MA, USA · Mental Health & Crisis Intervention · Latest available filing year: 2024 · Primary form: IRS Form 990

  62. Massachusetts Alliance for the Restoration of University of Liber

    EIN 263499449 · Headquarters: Lowell, MA, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. Massachusetts Alliance of Portuguese Speakers Inc

    EIN 042596270 · Headquarters: CAMBRIDGE, MA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  64. Massachusetts Alliance on Teen Pregnancy Inc

    EIN 222540285 · Headquarters: NEEDHAM, MA, USA · Human Services · Latest available filing year: 2017 · Primary form: IRS Form 990

  65. Massachusetts Alumni Research Institute Association Inc

    EIN 043579060 · Headquarters: Cambridge, MA, US · Education · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  66. Massachusetts Amateur Sports Foundation

    EIN 042764022 · Headquarters: WOBURN, MA, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

  67. Massachusetts Ambulance Association Inc

    EIN 010894923 · Headquarters: BURLINGTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  68. Massachusetts Ambulance Foundation Inc

    EIN 863249041 · Headquarters: BURLINGTON, MA, US · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Massachusetts and Northern New England Laborers District Council

    EIN 042424311 · Headquarters: Hopkinton, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  70. Massachusetts Animal Coalition Inc

    EIN 043540202 · Headquarters: NATICK, MA, USA · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  71. Massachusetts Animal Rights Coalition

    EIN 830405673 · Headquarters: Barre, MA, US · Animal Related · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  72. Massachusetts Antique Fire Apparatus Association

    EIN 990667021 · Headquarters: ANDOVER, MA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. Massachusetts Appleseed Center for Law and Justice

    EIN 043235179 · Headquarters: Boston, MA, USA · Crime & Legal Related · Latest available filing year: 2025 · Primary form: IRS Form 990

  74. Massachusetts Aquaculture Association

    EIN 043401377 · Headquarters: WEST CHATHAM, MA, USA · Community Improvement & Capacity Building · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ

  75. Massachusetts Arborists Assoc Inc

    EIN 043342199 · Headquarters: MEDFIELD, MA, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990

  76. Massachusetts Archaeology Education Consortium Inc

    EIN 473336507 · Headquarters: MEDFORD, MA, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  77. Massachusetts Archeological Society Inc

    EIN 046066001 · Headquarters: MIDDLEBORO, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  78. Massachusetts Arms Collectors

    EIN 881551748 · Headquarters: Pembroke, MA, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Massachusetts Art Education Association Limited

    EIN 813811699 · Headquarters: ACTON, MA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Massachusetts Artists Syndicate Studio Corp

    EIN 933940772 · Headquarters: Salem, MA, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. Massachusetts Asian AIDS Prevention Project Inc

    EIN 043294008 · Headquarters: BOSTON, MA, USA · Human Services · Latest available filing year: 2019 · Primary form: IRS Form 990

  82. Massachusetts Asian American Commission

    EIN 461063709 · Headquarters: Boston, MA, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Massachusetts Asian Restaurant Association

    EIN 830973291 · Headquarters: Saugus, MA, US · Food, Agriculture & Nutrition · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. Massachusetts Assoc of Blood Banks

    EIN 042582960 · Headquarters: Attleboro, MA, US · Health Care · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  85. Massachusetts Assoc of Patient Acct Mgmt Inc

    EIN 510192427 · Headquarters: Granby, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  86. Massachusetts Assoc of Public Purchasing Officials

    EIN 934861584 · Headquarters: Leominster, MA, US · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  87. Massachusetts Assoc of Regional Schools

    EIN 223006854 · Headquarters: BARRE, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  88. Massachusetts Association for Applied Behavior Ana

    EIN 452373003 · Headquarters: Milford, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  89. Massachusetts Association for Arts Sciences and Humanities Education Inc

    EIN 043407117 · Headquarters: BOSTON, MA, US · Arts, Culture & Humanities · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  90. Massachusetts Association for Family and Community Education Inc

    EIN 222978656 · Headquarters: Medfield, MA, US · Community Improvement & Capacity Building · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  91. Massachusetts Association for Floodplain Management Inc

    EIN 834387323 · Headquarters: East Sandwich, MA, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Massachusetts Association for Gifted Education Inc

    EIN 042617258 · Headquarters: NEWTON, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  93. Massachusetts Association for Jazz Education Inc

    EIN 263326616 · Headquarters: WESTWOOD, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  94. Massachusetts Association for Mental Health Inc

    EIN 042104711 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  95. Massachusetts Association for Mental Illness Inc

    EIN 862181966 · Headquarters: BELLINGHAM, MA, US · Mental Health & Crisis Intervention · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  96. Massachusetts Association for Occupational Therapy Inc

    EIN 042594792 · Headquarters: BRAINTREE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  97. Massachusetts Association for Psychoanalytic Psychology

    EIN 043044502 · Headquarters: Sudbury, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  98. Massachusetts Association for the Chemically Injured Inc

    EIN 043327956 · Headquarters: Andover, MA, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  99. Massachusetts Association for the Education of Young Children Inc

    EIN 043078401 · Headquarters: BOSTON, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  100. Massachusetts Association for the Treatment of Sex

    EIN 043274750 · Headquarters: NEEDHAM, MA, USA · Crime & Legal Related · Latest available filing year: 2025 · Primary form: IRS Form 990

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