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. Boston Mba Career Consortium Inc

    EIN 474102009 · Headquarters: Winchester, MA, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  2. Boston MedFlight

    EIN 222582060 · Headquarters: Bedford, MA, US · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990

  3. Boston Medical Center

    EIN 043314093 · Headquarters: Boston, MA, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990-T

  4. Boston Medical Center

    EIN 463556853 · Headquarters: Boston, MA, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990-T

  5. Boston Medical Center Health Plan Inc

    EIN 043373331 · Headquarters: CHARLESTOWN, MA, USA · Health Care · Latest available filing year: 2023 · Primary form: IRS Form 990

  6. Boston Medical Center Professional Chapter of the Massachusetts

    EIN 043426112 · Headquarters: Canton, MA, US · Employment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  7. Boston Medical Center – South

    EIN 994491180 · Headquarters: Brockton, MA, US · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990

  8. Boston Medical Center-brighton Corporation

    EIN 994793550 · Headquarters: BOSTON, MA, US · Health Care · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  9. Boston Medical Library C/o David M Pinkham Cpa Llc

    EIN 042013908 · Headquarters: MARSHFIELD, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  10. Boston Medical Services-ghana Inc

    EIN 461551363 · Headquarters: worcester, MA, US · Human Services · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  11. Boston Meditation

    EIN 201003302 · Headquarters: ARLINGTON, MA, US · Religion Related · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  12. Boston Mens Baseball League Inc Co Steven T Wolf

    EIN 043736893 · Headquarters: WAYLAND, MA, USA · Recreation & Sports · Latest available filing year: 2010 · Primary form: IRS Form 990-EZ

  13. Boston Mens Baseball Organization Inc

    EIN 611726560 · Headquarters: Newtonville, MA, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  14. Boston Metro Hi-railers Incorporated

    EIN 043433421 · Headquarters: wilmington, MA, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  15. Boston Microtonal Society Inc

    EIN 043086937 · Headquarters: North Adams, MA, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  16. Boston Midsummer Opera Inc

    EIN 203943823 · Headquarters: Boston, MA, US · Arts, Culture & Humanities · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  17. Boston Military Outreach Ministry Inc

    EIN 830704981 · Headquarters: MILTON, MA, USA · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  18. Boston Minutemen Division

    EIN 264384583 · Headquarters: Saugus, MA, US · Arts, Culture & Humanities · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  19. Boston Miracle Center International Inc

    EIN 874043073 · Headquarters: BURLINGTON, MA, US · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  20. Boston Missionary Baptist Community Center Inc

    EIN 364666451 · Headquarters: ROXBURY, MA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  21. Boston Mobilization Inc

    EIN 043550663 · Headquarters: CAMBRIDGE, MA, USA · Civil Rights, Social Action & Advocacy · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ

  22. Boston Modern Orchestra Project Inc

    EIN 043238554 · Headquarters: MALDEN, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  23. Boston Moving Arts Inc

    EIN 863002724 · Headquarters: Hyde Park, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  24. Boston Municipal Police Patrolman's Association

    EIN 222739986 · Headquarters: WEST ROXBURY, MA, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990

  25. Boston Municipal Research Bureau

    EIN 222673755 · Headquarters: BOSTON, MA, USA · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  26. Boston Music and Comedy Foundation Inc

    EIN 833358106 · Headquarters: Chelmsford, MA, US · Arts, Culture & Humanities · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  27. Boston Music Film Sports and Law Non Profit Corporation

    EIN 873762138 · Headquarters: Boston, MA, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. Boston Music Institute Inc

    EIN 812602262 · Headquarters: Brookline Village, MA, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  29. Boston Music Project Inc

    EIN 474232704 · Headquarters: BOSTON, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  30. Boston Musica Viva Inc

    EIN 237135191 · Headquarters: BRIGHTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990

  31. Boston Musical Theater Inc

    EIN 042895078 · Headquarters: CHESTNUT HILL, MA, US · Arts, Culture & Humanities · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  32. Boston Muslim Cemetery

    EIN 853388656 · Headquarters: Peabody, MA, United States · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  33. Boston Nankai Alumni Association

    EIN 901179917 · Headquarters: Winchester, MA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. Boston National Railway Historical Society Inc

    EIN 016021199 · Headquarters: Lawrence, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. Boston Natural Areas Network Inc

    EIN 042693273 · Headquarters: Boston, MA, USA · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990

  36. Boston Navigators Club

    EIN 046058242 · Headquarters: Marshfield, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  37. Boston Ne Natas Scholarship Inc

    EIN 274079275 · Headquarters: QUINCY, MA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. Boston Nehemiah Institute

    EIN 471355614 · Headquarters: brookline, MA, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. Boston Neighborhood Community Land Trust Inc

    EIN 465136872 · Headquarters: ROXBURY, MA, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. Boston Neighborhood Producers Group

    EIN 010569329 · Headquarters: Boston, MA, US · Housing & Shelter · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  41. Boston Neighborhood Support Inc

    EIN 042129132 · Headquarters: Boston, MA, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  42. Boston Neo-politan Chamber Orchestra

    EIN 300448304 · Headquarters: Franklin, MA, US · Arts, Culture & Humanities · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  43. Boston Network for International Development Inc

    EIN 821897230 · Headquarters: Belmont, MA, US · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  44. Boston New England Chapter of the Iacrn Inc

    EIN 881033302 · Headquarters: DUXBURY, MA, US · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Boston New Hope Academy

    EIN 991407310 · Headquarters: BEDFORD, MA, US · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  46. Boston New Music Initiative Inc

    EIN 272277123 · Headquarters: Cambridge, MA, US · Arts, Culture & Humanities · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  47. Boston Newspaper Prtg Pressmen Union 3 Paperhandlers H & W Fd

    EIN 223032503 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  48. Boston Nexus for Global Studies

    EIN 392398625 · Headquarters: Brookline, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. Boston Noram 2025

    EIN 991674147 · Headquarters: Medford, MA, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990

  50. Boston Noreaster Hockey

    EIN 462161951 · Headquarters: Randolph, MA, US · Recreation & Sports · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  51. Boston North Business Association Inc

    EIN 274871482 · Headquarters: Lowell, MA, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  52. Boston North Cancer Association

    EIN 237174582 · Headquarters: PEABODY, MA, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2025 · Primary form: IRS Form 990

  53. Boston Northeast Divisional Minor

    EIN 273766581 · Headquarters: MILTON, MA, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  54. Boston Numismatic Society

    EIN 046069732 · Headquarters: Quincy, MA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  55. Boston Office 365 User Group Inc

    EIN 813054179 · Headquarters: Newton, MA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. Boston Okta Korean Business Association Inc

    EIN 352646971 · Headquarters: Cambridge, MA, USA · Public & Societal Benefit · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  57. Boston One Dragon Boat Team Inc

    EIN 464310728 · Headquarters: Arlington, MA, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Boston Open Studios Coalition Inc

    EIN 043542797 · Headquarters: BOSTON, MA, US · Arts, Culture & Humanities · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  59. Boston Opera & Zarzuela Corp

    EIN 883122567 · Headquarters: Natick, MA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. Boston Opera Collaborative

    EIN 204377736 · Headquarters: Dover, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  61. Boston Opera Company Inc

    EIN 222960171 · Headquarters: Boston, MA, US · Arts, Culture & Humanities · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  62. Boston Organization of Nutritionists and Dietitians Of

    EIN 320546609 · Headquarters: Hyde Park, MA, US · Food, Agriculture & Nutrition · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  63. Boston Outdoor Preschool Network

    EIN 834567417 · Headquarters: STONEHAM, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  64. Boston Outrigger Racing Association Inc

    EIN 334559049 · Headquarters: Dorchester Center, MA, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. Boston Pain Society Inc

    EIN 853348265 · Headquarters: Newton, MA, US · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Boston Pan Africa Forum Inc

    EIN 043390237 · Headquarters: Newton, MA, US · Education · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  67. Boston Parent Organizing Network Inc

    EIN 270936408 · Headquarters: Dorchester, MA, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  68. Boston Park League Inc

    EIN 042755886 · Headquarters: MANSFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  69. Boston Partners in Education Inc

    EIN 042501341 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  70. Boston Partners in Mentoring Inc

    EIN 043406653 · Headquarters: BOSTON, MA, USA · Human Services · Latest available filing year: 2010 · Primary form: IRS Form 990

  71. Boston Patent Law Association C/o Davies & Monahan Pc

    EIN 042667161 · Headquarters: QUINCY, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  72. Boston Patent Law Foundation Inc

    EIN 200880838 · Headquarters: QUINCY, MA, USA · Crime & Legal Related · Latest available filing year: 2009 · Primary form: IRS Form 990-EZ

  73. Boston Pediatric Neurosurgical Foundation Inc

    EIN 042986097 · Headquarters: Boston, MA, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2023 · Primary form: IRS Form 990

  74. Boston Pediatric Neurosurgical Foundation Inc Veba Trust

    EIN 413295268 · Headquarters: BOSTON, MA, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  75. Boston Performing Arts Inc

    EIN 993893090 · Headquarters: Boston, MA, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  76. Boston Philharmonic Orchestra Corporation

    EIN 042678312 · Headquarters: Boston, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  77. Boston Photo Collaborative Inc

    EIN 043163182 · Headquarters: Milton, MA, US · Arts, Culture & Humanities · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  78. Boston Php Inc C/o Matthew Murphy

    EIN 454564023 · Headquarters: CHARLESTOWN, MA, US · Science & Technology · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  79. Boston Phrf

    EIN 010968900 · Headquarters: Winthrop, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Boston Piano Amateurs Association Inc

    EIN 043557579 · Headquarters: Northborough, MA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. Boston Plasterer's & Cement Masons' Supplemental Unemployment Ben Plan

    EIN 611424309 · Headquarters: DORCHESTER, MA, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  82. Boston Plasterers & Cement Masons Local 534 - Deferred Income Fund

    EIN 046544055 · Headquarters: DORCHESTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  83. Boston Plasterers' & Cement Masons Local 534 Apprent & Train Fund

    EIN 046185862 · Headquarters: BOSTON, MA, USA · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990

  84. Boston Plasterers' & Cement Masons Union Local 534

    EIN 041103065 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  85. Boston Plasterers' & Cement Masons' Health and Welfare Plan

    EIN 046049991 · Headquarters: BOSTON, MA, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  86. Boston Plasterers' & Cement Masons' Union Local 534 Labor Mgmt Coopfun

    EIN 043290837 · Headquarters: BOSTON, MA, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. Boston Plastic and Oral Surgery Foundation Inc

    EIN 043286718 · Headquarters: Boston, MA, USA · Education · Latest available filing year: 2023 · Primary form: IRS Form 990

  88. Boston Plays Inc

    EIN 811530946 · Headquarters: NEWTON, MA, USA · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  89. Boston Plumbing & Gasfitting Industry Improvement

    EIN 042535112 · Headquarters: Braintree, MA, USA · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. Boston Poetry Slam Inc

    EIN 992938190 · Headquarters: Allston, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  91. Boston Police Detectives Benevolent Society

    EIN 223010035 · Headquarters: ROSLINDALE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. Boston Police Gaelic Column of Pipes and Drums Inc

    EIN 043178965 · Headquarters: DORCHESTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  93. Boston Police Patrolmen's Association

    EIN 046141788 · Headquarters: DORCHESTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  94. Boston Police Relief Association

    EIN 041106807 · Headquarters: HYDE PARK, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  95. Boston Police Runners Club

    EIN 753240064 · Headquarters: Boston, MA, US · Human Services · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  96. Boston Police Superior Officers Federation

    EIN 042689923 · Headquarters: BOSTON, MA, USA · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990

  97. Boston Policy Institute Inc

    EIN 933608124 · Headquarters: BRAINTREE, MA, USA · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  98. Boston Portuguese Festival

    EIN 352655523 · Headquarters: SALEM, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  99. Boston Post Adoption Resources Inc

    EIN 455603557 · Headquarters: Brookline, MA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. Boston Postdoctoral Association Inc

    EIN 842151162 · Headquarters: Brighton, MA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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