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. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 992606841 · Headquarters: Bourne, MA, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 993278768 · Headquarters: Cotuit, MA, US · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  3. Master Wardens & Members of the Grand Lodge of Masons in Mass Ipswich Masonic

    EIN 042631028 · Headquarters: IPSWICH, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  4. Master Wardens & Members of the Grand Lodge of Masons in Mass Master Wardens & Members of the Grand Lodge of Mas

    EIN 237170395 · Headquarters: East Bridgewater, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  5. MASTER WARDENS & MEMBERS OF THE GRAND LODGE OF MASONS IN MASS New Bedford Masonic Temple Association Inc

    EIN 042242971 · Headquarters: New Bedford, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  6. Master Wardens & Members of the Grand Lodge of Masons in Mass Star in the East Lodge

    EIN 237155892 · Headquarters: New Bedford, MA, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  7. Master Wardens & Members of the Grand Lodge of Masons in Massachus

    EIN 042108356 · Headquarters: Franklin, MA, US · Mutual & Membership Benefit · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  8. Master Wardens & Members of the Grand Lodge of Masons in Massachusetts

    EIN 020727587 · Headquarters: ARLINGTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  9. Master Wardens & Members of the Grand Lodge of Masons in Massachusetts

    EIN 041032824 · Headquarters: SAUGUS, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  10. Master Wardens & Members of the Grand Lodge of Masons in Massachusetts

    EIN 041340005 · Headquarters: FRAMINGHAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  11. Master Wardens & Members of the Grand Lodge of Masons in Massachusetts

    EIN 041583964 · Headquarters: BUZZARDS BAY, MA, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  12. Master Wardens & Members of the Grand Lodge of Masons in Massachusetts

    EIN 237170402 · Headquarters: COTUIT, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  13. Master Wardens & Members of the Grand Lodge of Masons of Massachus

    EIN 274703435 · Headquarters: Brockton, MA, US · Mutual & Membership Benefit · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  14. Master Wardens & Members of the Grand Lodge of Massachusetts

    EIN 041802940 · Headquarters: SALEM, MA, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990

  15. Master Wardens & Members of the Grand Lodge of the Masons in Mass

    EIN 046063360 · Headquarters: Southbridge, MA, US · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  16. Master Wardens & Members of the Grand Lodge of the Masons in Mass

    EIN 046147020 · Headquarters: North Brookfield, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  17. Master Wardens & Members of the Grand Lodge of the Masons in Mass

    EIN 237161264 · Headquarters: Reading, MA, US · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  18. Master Wardens & Members of the Grand Lodge of the Masons in Mass

    EIN 611730910 · Headquarters: Marion, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. Master Wardens & Members of the Grand Lodge William North Lodge Af & Am

    EIN 046059909 · Headquarters: LOWELL, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  20. Master Wardens & Members of the John T Heard Lodge

    EIN 041032827 · Headquarters: IPSWICH, MA, USA · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  21. Master Wardens & Members of the Masonic Secretaries Assoc

    EIN 042859052 · Headquarters: WELLESLEY, MA, US · Mutual & Membership Benefit · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  22. Master Wardens & Members Of The Oriental Marthas Vineyard Lodge

    EIN 237170435 · Headquarters: Oak Bluffs, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  23. Master Wardens & Members of the Star of Bethlehem Lodge

    EIN 046052367 · Headquarters: DANVERS, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  24. Master Wardens & Members of Thegrand Lodge of Masons in Mass

    EIN 042651481 · Headquarters: Holliston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. Master Wardens & Members of Thegrand Lodge of Masons in Mass

    EIN 046363205 · Headquarters: WESTPORT, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  26. Master Wardens & Members of Washington Lodge

    EIN 041032807 · Headquarters: Littleton, MA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  27. Master Wardens & Members Pequossette Lodge AF & AM

    EIN 041032811 · Headquarters: WATERTOWN, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  28. Master Wardens & Members the Morning Star Lodge

    EIN 042201783 · Headquarters: WORCESTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  29. Master Wardens and Members Of

    EIN 237167772 · Headquarters: Boston, MA, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  30. Master Wardens and Members of Grand Lodge of Masons in Joseph Webb Lodge Af and Am

    EIN 046056866 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  31. Master Wardens and Members of Grand Lodge of Masons in Massachusetts

    EIN 043240964 · Headquarters: EAST WEYMOUTH, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  32. Master Wardens and Members of Major General Henry Knox Af&am

    EIN 042271801 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  33. Master Wardens and Members of Masons Orient Lodge

    EIN 041032924 · Headquarters: Norwood, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. Master Wardens and Members of Mount Hermon Lodge AF& AM

    EIN 237170432 · Headquarters: Winchester, MA, USA · Mutual & Membership Benefit · Latest available filing year: 2012 · Primary form: IRS Form 990-EZ

  35. Master Wardens and Members of the Consolidated Lodge Af&am

    EIN 041032838 · Headquarters: NEWTON CENTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-EZ

  36. Master Wardens and Members of the Freemasons Hall Association

    EIN 041344825 · Headquarters: HAVERHILL, MA, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. Master Wardens and Members of the G Lodge of Masons in Massachusetts

    EIN 041383607 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  38. Master Wardens and Members of the Grand Lodge of Masons in Mass

    EIN 237142992 · Headquarters: Cohasset, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  39. Master Wardens and Members of the Grand Lodge of Masons in Mass

    EIN 474056650 · Headquarters: Wilmington, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. Master Wardens and Members of the Grand Lodge of Masons in Mass

    EIN 810720901 · Headquarters: Attleboro, MA, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  41. Master Wardens and Members of the Grand Lodge of Masons in Mass

    EIN 854224170 · Headquarters: Somerville, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  42. Master Wardens and Members of the Grand Lodge of Masons in Massa

    EIN 931449316 · Headquarters: SOUTH WELLFLEET, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  43. Master Wardens and Members of the Grand Lodge of Masons in Massachuetts

    EIN 046058401 · Headquarters: IPSWICH, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  44. Master Wardens and Members of the Grand Lodge of Masons in Massachusetts

    EIN 041032832 · Headquarters: BEVERLY, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  45. Master Wardens and Members of the Grand Lodge of Masons in Massachusetts

    EIN 832402971 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  46. Master Wardens and Members of the Grand of Masons in Massachusetts

    EIN 041922515 · Headquarters: MARLBOROUGH, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  47. Master Wardens and Members of the Lodge of St Andrew

    EIN 237578899 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  48. Master Wardens and Members of the Natick Masonic Trust Building

    EIN 046034208 · Headquarters: NATICK, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  49. Master Wardens And Members Of The Vineyard Masonic Temple Inc

    EIN 042774261 · Headquarters: Oak Bluffs, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. Master Wardens Members of the Grand Lodge of Masons in Mass

    EIN 237170793 · Headquarters: Brookline, MA, US · Mutual & Membership Benefit · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  51. Master Wardens Members of the Grand Lodge of Masons in Mass

    EIN 900633675 · Headquarters: Holden, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  52. Master Warens & Memebers of the Grand Lodge of Masons of Mass

    EIN 800079931 · Headquarters: South Hadley, MA, US · Mutual & Membership Benefit · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  53. Master Wordens & Mambers of the Grand Lodge of Masons in Mass

    EIN 237170423 · Headquarters: Russell, MA, US · Mutual & Membership Benefit · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  54. Masters and Wardens & Member of Masons Waltham Triad Lodge a F a M

    EIN 041032900 · Headquarters: LEOMINSTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  55. Masters and Wardens of the Brockton Masonic Temple Assoc

    EIN 042303176 · Headquarters: Brockton, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  56. Masters Cricket USA Inc

    EIN 861411490 · Headquarters: NORTON, MA, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

  57. Masters Wardens & Members in Massachuse Columbian Lodge Af & Am

    EIN 041032872 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  58. Masters Wardens & Members of Masons in Mass Wyoming Lodge

    EIN 041032825 · Headquarters: MELROSE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  59. Masters Wardens & Members of Mt Lebanon Lodge

    EIN 041032906 · Headquarters: MELROSE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  60. Masters Wardens & Members of the Grand Lodge of Masons in Ma

    EIN 451620482 · Headquarters: Arlington, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  61. Masters Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 046037808 · Headquarters: SHELBURNE FALLS, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  62. Masterwardens & Members of the Grand Lodge of Masons in Mass

    EIN 453910963 · Headquarters: Newtonville, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. Masterworks Chorale

    EIN 046125155 · Headquarters: CAMBRIDGE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  64. Mastery School of Independent Learning Inc

    EIN 463019527 · Headquarters: Somerset, MA, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  65. Mastery Transcript Consortium

    EIN 814974458 · Headquarters: WINCHESTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  66. Mastwood Charitable Foundation

    EIN 043530135 · Headquarters: BOSTON, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  67. Match Foundation Qalicb Inc

    EIN 900712410 · Headquarters: BOSTON, MA, USA · Education · Latest available filing year: 2016 · Primary form: IRS Form 990-EZ

  68. Matchingdonorsorg Inc

    EIN 161724803 · Headquarters: CANTON, MA, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990

  69. Matchlink Institute Inc

    EIN 473895954 · Headquarters: Mattapoisett, MA, US · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  70. Material Aid and Advocacy Program Inc

    EIN 822927617 · Headquarters: Cambridge, MA, USA · Human Services · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  71. Maternal Health Haven

    EIN 392326197 · Headquarters: NATICK, MA, USA · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  72. Math Circle

    EIN 043351632 · Headquarters: PITTSFIELD, MA, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  73. Math for America Boston Inc

    EIN 271240064 · Headquarters: BOSTON, MA, USA · Education · Latest available filing year: 2019 · Primary form: IRS Form 990

  74. Math for Communities Inc

    EIN 842490443 · Headquarters: Newton, MA, US · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  75. Mathari Childrens Fund Inc

    EIN 043545232 · Headquarters: Melrose, MA, USA · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  76. Mathematics and Science Society for Youth Inc

    EIN 813157166 · Headquarters: SOUTH EASTON, MA, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Matheson Apartments Inc

    EIN 237320938 · Headquarters: WORCESTER, MA, USA · Housing & Shelter · Latest available filing year: 2017 · Primary form: IRS Form 990

  78. Mathew J Vieu Memorial Fund Inc

    EIN 811045906 · Headquarters: Granby, MA, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Mathews Family Foundation Inc

    EIN 833847902 · Headquarters: Arlington, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  80. Mathews Way Homeowners Association

    EIN 301263311 · Headquarters: North Andover, MA, US · Housing & Shelter · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  81. Mathremotely Inc

    EIN 861177914 · Headquarters: Leeds, MA, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  82. Mathworks Foundation Inc

    EIN 831665375 · Headquarters: NATICK, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  83. Matriarts Initiative Ltd

    EIN 262464910 · Headquarters: Cambridge, MA, US · Arts, Culture & Humanities · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  84. Mats for All Inc

    EIN 333085778 · Headquarters: CENTERVILLE, MA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Matt Benoit Memorial Scholarship Fund

    EIN 364593966 · Headquarters: WESTPORT, MA, USA · Education · Latest available filing year: 2013 · Primary form: IRS Form 990-EZ

  86. Matt Brown Foundation

    EIN 833056927 · Headquarters: NORWOOD, MA, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. Matt Stelmach Charitable Trust

    EIN 205334539 · Headquarters: AUBURN, MA, US · Human Services · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  88. Matt Z Foundation

    EIN 331443547 · Headquarters: Three Rivers, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  89. Matta Home Inc

    EIN 260691584 · Headquarters: West Bridgewater, MA, US · Crime & Legal Related · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  90. Mattapan Center for Life

    EIN 223301362 · Headquarters: WELLESLEY, MA, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. Mattapan Community Center Inc

    EIN 043315190 · Headquarters: MATTAPAN, MA, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Mattapan Community Development Corp

    EIN 872508546 · Headquarters: Mattapan, MA, US · Community Improvement & Capacity Building · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  93. Mattapan Community Health Center Inc

    EIN 042544151 · Headquarters: MATTAPAN, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  94. Mattapan Health Center Realty Inc C/o Mattapan Community Health Center Inc

    EIN 272881079 · Headquarters: MATTAPAN, MA, USA · Community Improvement & Capacity Building · Latest available filing year: 2018 · Primary form: IRS Form 990

  95. Mattapan Patriots N E Elite Youth Football and Cheer Inc

    EIN 332172382 · Headquarters: BOSTON, MA, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  96. Mattapan Square Main Streets Inc

    EIN 900773302 · Headquarters: MATTAPAN, MA, USA · Community Improvement & Capacity Building · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  97. Mattapan's Finest Back to School Free Cut and Curl

    EIN 901016602 · Headquarters: DORCHESTER, MA, USA · Education · Latest available filing year: 2018 · Primary form: IRS Form 990

  98. Mattapangreater Boston Technology Learning Center Inc

    EIN 263961716 · Headquarters: MATTAPAN, MA, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990

  99. Mattapoisett Area Artists Inc

    EIN 821943054 · Headquarters: Mattapoisett, MA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  100. Mattapoisett Community Sailing Associnc

    EIN 208660481 · Headquarters: MATTAPOISETT, MA, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

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