Nonprofits in Boston, Massachusetts

Nonprofits in Boston, Massachusetts. Browse 5,392 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. Marianne J H Witherby Foundation Leiha

    EIN 043540155 · Headquarters: BOSTON, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  2. Marigold Charitable Trust

    EIN 206748222 · Headquarters: BOSTON, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  3. Marine Corps League

    EIN 820878709 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Marinella Family Foundation

    EIN 043567871 · Headquarters: BOSTON, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  5. Marion & Jasper Whiting Foundation

    EIN 046147345 · Headquarters: BOSTON, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  6. Marion L Decrow Foundation

    EIN 046278656 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  7. Maritime Society of Our Lady of Help of Sciacca Inc

    EIN 043127449 · Headquarters: BOSTON, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  8. Marjorie Cohen Stanzler Charitable Trust

    EIN 046955868 · Headquarters: BOSTON, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  9. Mark G Flanagin Scholarship Fund

    EIN 274528368 · Headquarters: Boston, MA, US · Education · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  10. Marshall Street Historical Society Inc

    EIN 042281110 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  11. Mart Foundation

    EIN 813022126 · Headquarters: BOSTON, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  12. Marten Family Foundation 7563-Xxxxxx00165

    EIN 306036299 · Headquarters: BOSTON, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  13. Martha S Mugar Foundation Inc

    EIN 743131958 · Headquarters: BOSTON, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2012 · Primary form: IRS Form 990-PF

  14. Martina O'neil Tr

    EIN 046416879 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  15. Mary a Crabtree Fund #0710800 Nutter Mcclennen & Fish Llp

    EIN 042607227 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  16. Mary A Warren Foundation

    EIN 931422593 · Headquarters: Boston, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  17. Mary C Lynch Foundation

    EIN 276369638 · Headquarters: BOSTON, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  18. Mary C O'brien Charitable Trust

    EIN 046404073 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  19. Mary Cronin Stone Memorial Charitable Trust Fund

    EIN 042785239 · Headquarters: Boston, MA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  20. Mary E Armstrong Trust C/o Taylor Ganson & Perrin LLP

    EIN 046028143 · Headquarters: Boston, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  21. Mary E Wood Foundation Thomas R Appleton Et Al Trustees

    EIN 046027441 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  22. Mary Field and Vincent Depaul Goubeau Charitable Tr 1996

    EIN 046799734 · Headquarters: BOSTON, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2020 · Primary form: IRS Form 990-PF

  23. Mary J Harris Foundation Inc

    EIN 821585421 · Headquarters: Boston, MA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Mary Mb Wakefield Charitable Trust C/o Sippican Capital Advisors Llc

    EIN 046076048 · Headquarters: BOSTON, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  25. Mary Mitchell Humane Fund

    EIN 046074201 · Headquarters: BOSTON, MA, USA · Animal Related · Latest available filing year: 2011 · Primary form: IRS Form 990

  26. Mary Nichols Trust Uw Charitable Trust

    EIN 046342221 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  27. Mary S Holzwasser Charitable Trust

    EIN 042679759 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  28. Mary T Lane Foundation Charitable Trust

    EIN 466868808 · Headquarters: BOSTON, MA, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  29. Mary-louise & Ruth Eddy Fdn

    EIN 222642870 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  30. Masinyusane Inc

    EIN 273024837 · Headquarters: Boston, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990

  31. Mason Family Charity

    EIN 205415754 · Headquarters: Boston, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  32. Masonic Education & Charity Trust

    EIN 042104701 · Headquarters: BOSTON, MA, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  33. Mass Afl-cio Workforce Development Programs Inc

    EIN 043509974 · Headquarters: BOSTON, MA, USA · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. Mass Board of Real Estate Appraisers

    EIN 042706453 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  35. Mass Design Group Ltd

    EIN 611659704 · Headquarters: BOSTON, MA, USA · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990

  36. Mass Eta of Phi Kappa Theta Alumni Corp

    EIN 046063508 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  37. Mass Eye and Ear

    EIN 222658209 · Headquarters: Boston, MA, United States · Health Care · Latest available filing year: 2017 · Primary form: IRS Form 990

  38. Mass Insight Education and Research Institute Inc

    EIN 043369687 · Headquarters: BOSTON, MA, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990

  39. Mass L E a P Inc

    EIN 811668473 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  40. Mass Labor Action Network Inc

    EIN 834617227 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Mass Miata Club Ltd

    EIN 470899280 · Headquarters: Boston, MA, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Mass Pike Tower Tenant Association Inc

    EIN 043511475 · Headquarters: Boston, MA, US · Housing & Shelter · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  43. Mass Recycle Inc

    EIN 043072799 · Headquarters: BOSTON, MA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  44. Mass Society for Univ Education of Women

    EIN 046145949 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  45. Mass State Committee of the National Museum of Women in the Ar

    EIN 205011983 · Headquarters: Boston, MA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. Mass-india Partnership

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

  47. Massachusetts 2020 Inc

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

  48. 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

  49. 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

  50. 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

  51. 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

  52. 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

  53. 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

  54. Massachusetts Afl-cio Building Corporation

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

  55. Massachusetts Afl-cio Scholarship Corporation

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

  56. Massachusetts Afterschool Partner- Ship Inc

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

  57. Massachusetts Alliance for Early College Inc

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

  58. 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

  59. 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

  60. Massachusetts Asian AIDS Prevention Project Inc

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

  61. Massachusetts Asian American Commission

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

  62. 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

  63. Massachusetts Association for Mental Health Inc

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

  64. 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

  65. Massachusetts Association of Community Development Corporation

    EIN 042759909 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  66. Massachusetts Association of Community Health Inc

    EIN 043535724 · Headquarters: Boston, MA, US · Health Care · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  67. Massachusetts Association of Health Plans Inc

    EIN 222518016 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  68. Massachusetts Association of Housing Cooperatives Inc

    EIN 465134585 · Headquarters: Boston, MA, US · Housing & Shelter · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Massachusetts Association of Investment Advisors

    EIN 822942211 · Headquarters: BOSTON, MA, US · Public & Societal Benefit · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  70. Massachusetts Association of Land Surveyors & Civil Engineers Inc

    EIN 042616384 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  71. Massachusetts Association of School Committees Inc

    EIN 042214848 · Headquarters: BOSTON, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  72. Massachusetts Association of School-based Health Care Inc

    EIN 043527138 · Headquarters: BOSTON, MA, US · Health Care · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  73. Massachusetts Association of Women in Law Enforcement Inc

    EIN 510511652 · Headquarters: Boston, MA, USA · Crime & Legal Related · Latest available filing year: 2015 · Primary form: IRS Form 990-EZ

  74. Massachusetts Banker Association Group Insurance Trust

    EIN 042628271 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  75. Massachusetts Bankers Association Charitable Foundation Inc

    EIN 043325424 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  76. Massachusetts Bankers Association Inc

    EIN 041589780 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  77. Massachusetts Bankers Association Scholarship Foundation

    EIN 043460557 · Headquarters: BOSTON, MA, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  78. Massachusetts Bar Association

    EIN 041589785 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  79. Massachusetts Bar Foundation Inc

    EIN 046130261 · Headquarters: Boston, MA, USA · Crime & Legal Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  80. Massachusetts Bar Institute Inc

    EIN 043293798 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  81. Massachusetts Bay Marlins Inc

    EIN 043427040 · Headquarters: Boston, MA, USA · Youth Development · Latest available filing year: 2011 · Primary form: IRS Form 990

  82. Massachusetts Beta-upsilon Alumni Association

    EIN 222534422 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  83. Massachusetts Beverage Association Inc C/O BCB Government Relations

    EIN 237430214 · Headquarters: Boston, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  84. Massachusetts Bicycle Coalition Incorporated

    EIN 042692252 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  85. Massachusetts Black Lawyers Association

    EIN 043021895 · Headquarters: Boston, MA, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  86. Massachusetts Black Women Attorneys Foundation Inc

    EIN 043570050 · Headquarters: BOSTON, MA, USA · Crime & Legal Related · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  87. Massachusetts Board of Bar Overseers Health Care Reimbursement Account Plan

    EIN 900961763 · Headquarters: BOSTON, MA, USA · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990

  88. Massachusetts Bricklayers & Masons Health & Welfare Fund

    EIN 042145367 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  89. Massachusetts Budget and Policy Center Inc

    EIN 042967537 · Headquarters: Boston, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  90. Massachusetts Building Congress Inc

    EIN 042127289 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. Massachusetts Business Alliance for Education Inc

    EIN 043274599 · Headquarters: BOSTON, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. Massachusetts Business Roundtable

    EIN 042695705 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  93. Massachusetts Campus Compact Inc

    EIN 464175889 · Headquarters: BOSTON, MA, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  94. Massachusetts Casa Association

    EIN 823536706 · Headquarters: Boston, MA, USA · Civil Rights, Social Action & Advocacy · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  95. Massachusetts Chapter of the Association of Black Psychologists

    EIN 992248600 · Headquarters: Boston, MA, US · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  96. Massachusetts Chapter of the Institute of Transportation Engine

    EIN 820988911 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  97. Massachusetts Charitable Fire Society

    EIN 042305919 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  98. Massachusetts Charitable Society C/o Wave Equity Partners

    EIN 041589975 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  99. Massachusetts Children'S Alliance Inc

    EIN 342006038 · Headquarters: Boston, MA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. Massachusetts Citizens Against the Death Penalty Fund Inc

    EIN 042790946 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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