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. International Brotherhood of Electrical Workers Local Union No 2321

    EIN 042473915 · Headquarters: NORTH ANDOVER, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  2. International Brotherhood of Electrical Workers System Council T-5

    EIN 364648598 · Headquarters: NORTH ANDOVER, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. International Brotherhood of Electricial Workers

    EIN 042217536 · Headquarters: NEWBURYPORT, MA, US · Employment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  4. International Brotherhood of Painters Local 577

    EIN 237071798 · Headquarters: ROSLINDALE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  5. International Brotherhood of Police Officers 417

    EIN 043047788 · Headquarters: SOUTH DENNIS, MA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  6. International Brotherhood of Police Officers Local 364

    EIN 043092665 · Headquarters: SPRINGFIELD, MA, USA · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990

  7. International Brotherhood of Police Officers Local 538 Inc

    EIN 043169128 · Headquarters: WINCHENDON, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. International Brotherhood of Teamsters

    EIN 043031947 · Headquarters: LUDLOW, MA, US · Employment · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  9. International Brotherhood of Teamsters

    EIN 043095710 · Headquarters: WORCESTER, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. International Brotherhood of Teamsters 404 Local Union

    EIN 041171377 · Headquarters: SPRINGFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  11. International Brotherhood of Teamsters Local 653 Tcwh

    EIN 041472105 · Headquarters: SOUTH EASTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  12. International Brotherhood of Teamsters Retirees Chapter 25

    EIN 222541456 · Headquarters: CHARLESTOWN, MA, US · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. International Brotherhood of Teamsters Union Local 127

    EIN 042241104 · Headquarters: MILFORD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  14. International Brotherhood of Teamsters Union Local No 59

    EIN 041472102 · Headquarters: New Bedford, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  15. International Buddhist Peace Organization

    EIN 472858891 · Headquarters: MEDFORD, MA, US · Religion Related · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  16. International Candlepin Bowling Association

    EIN 043094038 · Headquarters: Erving, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  17. International Careers Consortium Inc

    EIN 043055689 · Headquarters: Babson Park, MA, US · Health Care · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  18. International Carotenoid Society

    EIN 651166190 · Headquarters: Norwood, MA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. International Catacomb Society Inc

    EIN 042693671 · Headquarters: Boston, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  20. International Catholic Deaf Assn

    EIN 042973465 · Headquarters: Springfield, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. International Catholic Deaf Assn

    EIN 056035616 · Headquarters: S Attleboro, MA, US · Human Services · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  22. International Center for 8Mm Film and Video Inc

    EIN 042785437 · Headquarters: Rowley, MA, US · Arts, Culture & Humanities · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  23. International Center for Conciliation Inc

    EIN 043550580 · Headquarters: Lynn, MA, US · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  24. International Center for Growth in Connection Inc

    EIN 813880142 · Headquarters: LEXINGTON, MA, USA · Social Science · Latest available filing year: 2023 · Primary form: IRS Form 990

  25. International Center for Integrative Systems Inc

    EIN 273708711 · Headquarters: CAMBRIDGE, MA, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2025 · Primary form: IRS Form 990

  26. International Center for Professional Development

    EIN 993361434 · Headquarters: Wellesley Hills, MA, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  27. International Center for Responsible Gaming

    EIN 521967802 · Headquarters: Beverly, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990

  28. International Center of Worcester

    EIN 042375529 · Headquarters: WORCESTER, MA, USA · Human Services · Latest available filing year: 2013 · Primary form: IRS Form 990-EZ

  29. International Cesarean Awareness Network

    EIN 562489135 · Headquarters: Quincy, MA, US · Health Care · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  30. International Chaplains Association Inc

    EIN 043572775 · Headquarters: Lawrence, MA, US · Religion Related · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  31. International Childrens Digital Library Foundation

    EIN 870767407 · Headquarters: Windsor, MA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. International Childrens Literacy Corps Inc

    EIN 113496556 · Headquarters: BROOKLINE, MA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. International Chinese Chorus Association Inc

    EIN 455053543 · Headquarters: Medford, MA, US · Arts, Culture & Humanities · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  34. International Chinese Hand Tissue Society Inc

    EIN 043341774 · Headquarters: Lexington, MA, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  35. International Chinese Reading Association

    EIN 811472910 · Headquarters: Westwood, MA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. International Christian Ministries

    EIN 223117204 · Headquarters: SEEKONK, MA, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. International Church of God

    EIN 043209132 · Headquarters: BURLINGTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-T

  38. International Circle for Kids & Youth

    EIN 852346264 · Headquarters: Woburn, MA, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. International Citizens Foundation Inc

    EIN 753201618 · Headquarters: HINGHAM, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2021 · Primary form: IRS Form 990-PF

  40. International Clubmakers Guild Inc

    EIN 263620858 · Headquarters: SAUGUS, MA, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. International Coaching Federation of New England Inc

    EIN 043568068 · Headquarters: PITTSFIELD, MA, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  42. International Coastal and Ocean Organization Inc

    EIN 043058730 · Headquarters: Orleans, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. International Cody Family Association

    EIN 465338771 · Headquarters: BARNSTABLE TOWN, MA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. International Collaboration of Perianaesthesia Nurses Inc

    EIN 474774971 · Headquarters: Newton Highlands, MA, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  45. International Collaborative For

    EIN 223158263 · Headquarters: Brookline, MA, USA · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990

  46. International Combat Archery Alliance Inc

    EIN 393658857 · Headquarters: Brookline, MA, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  47. International Commission for Refugees Inc

    EIN 932922020 · Headquarters: Cambridge, MA, US · International, Foreign Affairs & National Security · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  48. International Committee for the Children of Chechnya

    EIN 043316398 · Headquarters: Cambridge, MA, US · Human Services · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  49. International Conferance on Information Quality

    EIN 043539688 · Headquarters: CHESTNUT HILL, MA, USA · Education · Latest available filing year: 2023 · Primary form: IRS Form 990

  50. International Conference on Improving University Teaching Inc

    EIN 522127348 · Headquarters: Sterling, MA, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  51. International Conference on the Che Mistry & Biology of Mineralized Tis

    EIN 222986190 · Headquarters: EAST FALMOUTH, MA, USA · Medical Research · Latest available filing year: 2024 · Primary form: IRS Form 990

  52. International Conference on the Science of Hard Materials

    EIN 050435206 · Headquarters: Boston, MA, US · Social Science · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  53. International Conservation Fund Corp

    EIN 834647086 · Headquarters: Boston, MA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  54. International Consortium for Energy Development Inc

    EIN 222867362 · Headquarters: Boston, MA, US · Public & Societal Benefit · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  55. International Consortium for Executive Development Research Inc

    EIN 043116310 · Headquarters: Belmont, MA, USA · Employment · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  56. International Consortium for Health Outcomes Measurement Inc

    EIN 460854621 · Headquarters: BOSTON, MA, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990

  57. International Consortium for Law and Development Inc

    EIN 651232223 · Headquarters: Boston, MA, USA · International, Foreign Affairs & National Security · Latest available filing year: 2012 · Primary form: IRS Form 990-EZ

  58. International Consortium on Newborn Sequ

    EIN 991893360 · Headquarters: CHARLESTOWN, MA, USA · Health Care · Latest available filing year: 2023 · Primary form: IRS Form 990

  59. International Coronary Congress Inc

    EIN 473260752 · Headquarters: BEVERLY, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  60. International Costumers Guild

    EIN 813962672 · Headquarters: Bellingham, MA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. International Costumers Guild Inc

    EIN 521656188 · Headquarters: Lunenburg, MA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. International Council Advancing Independent School Accreditation

    EIN 824673704 · Headquarters: DEDHAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  63. International Cultic Studies Association Inc

    EIN 042667828 · Headquarters: TEWKSBURY, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  64. International Culture & Education Promot

    EIN 825371117 · Headquarters: Waltham, MA, US · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. International Dance Exchange Inc

    EIN 834604503 · Headquarters: WILLIIAMSTOWN, MA, US · Arts, Culture & Humanities · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  66. International Desalination and Reuse Association

    EIN 222099951 · Headquarters: DANVERS, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  67. International Diabetes Organization Inc

    EIN 260652092 · Headquarters: Sharon, MA, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  68. International Dialogue Initiative Incorporated

    EIN 471882858 · Headquarters: Longmeadow, MA, US · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. International Diplomacy Bridge Church Inc

    EIN 993251589 · Headquarters: Boston, MA, US · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  70. International District Energy Assoc

    EIN 521918849 · Headquarters: Westborough, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  71. International Dream Inc

    EIN 923165011 · Headquarters: Fitchburg, MA, USA · Housing & Shelter · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  72. International Drug Prevention Foundation Inc

    EIN 010609688 · Headquarters: Malden, MA, US · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. International Dzogchen Community at Tsegyalgar East

    EIN 222485466 · Headquarters: CONWAY, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  74. International Education Data Mining Society

    EIN 455008719 · Headquarters: WORCESTER, MA, USA · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  75. International Education Programs Inc.

    EIN 042639943 · Headquarters: Marlborough, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  76. International Educational

    EIN 510397102 · Headquarters: BROOKLINE, MA, USA · International, Foreign Affairs & National Security · Latest available filing year: 2012 · Primary form: IRS Form 990-PF

  77. International Educators Cooperative Inc

    EIN 042912832 · Headquarters: FALMOUTH, MA, US · International, Foreign Affairs & National Security · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  78. International English Project Inc

    EIN 811303090 · Headquarters: BOSTON, MA, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  79. International Epidemiological Association Inc

    EIN 520853909 · Headquarters: SPRINGFIELD, MA, USA · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990

  80. International Federation of 149 Ifp Local

    EIN 042270316 · Headquarters: LYNN, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  81. International Federation of Local 142

    EIN 042134300 · Headquarters: WAKEFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  82. International Federation of Professional & Technical Engineers

    EIN 232077857 · Headquarters: Newton, MA, US · Science & Technology · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  83. International Fellowship House Inc

    EIN 042397292 · Headquarters: BOSTON, MA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  84. International Fencing Club Foundation Inc

    EIN 842264733 · Headquarters: West Roxbury, MA, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. International Fisheries Research and Museum Inc

    EIN 222528377 · Headquarters: West Brewster, MA, US · Arts, Culture & Humanities · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  86. International Forum for Democracy

    EIN 473457992 · Headquarters: REVERE, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  87. International Forum of Meteorological Societies Inc

    EIN 821922399 · Headquarters: Boston, MA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. International Foundation For

    EIN 042790259 · Headquarters: GARDNER, MA, USA · Civil Rights, Social Action & Advocacy · Latest available filing year: 2011 · Primary form: IRS Form 990

  89. International Furnishings & Design Assoc

    EIN 046170615 · Headquarters: Sudbury, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  90. International Geriatric Diabetes Society Inc

    EIN 844133699 · Headquarters: BOSTON, MA, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. International Gugak Jazz Institute

    EIN 832289524 · Headquarters: WILMINGTON, MA, US · Arts, Culture & Humanities · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  92. International Health Care Solutions

    EIN 815051011 · Headquarters: Woburn, MA, US · International, Foreign Affairs & National Security · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  93. International Health Organization Inc

    EIN 043280729 · Headquarters: Holbrook, MA, US · Health Care · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  94. International Honors Program Inc

    EIN 043326069 · Headquarters: Boston, MA, US · International, Foreign Affairs & National Security · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  95. International Institute for Islamic Studies Inc

    EIN 850685098 · Headquarters: Hingham, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  96. International Institute for Justice and Development Inc

    EIN 010697366 · Headquarters: Boston, MA, US · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  97. International Institute For Race Medicine Inc

    EIN 461856408 · Headquarters: Plymouth, MA, USA · Health Care · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  98. International Institute for Social and Economic Development Inc

    EIN 043404928 · Headquarters: Woburn, MA, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  99. International Institute Foundation in Spain

    EIN 042306408 · Headquarters: MILFORD, MA, USA · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. International Institute of Forecasters Inc

    EIN 223037274 · Headquarters: Medford, MA, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990

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