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. American Association of Endodontists

    EIN 043059901 · Headquarters: Cambridge, MA, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. American Association of Neuroscience Nurses

    EIN 201355764 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. American Association of Plastic Surgeons

    EIN 946118700 · Headquarters: BEVERLY, MA, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2024 · Primary form: IRS Form 990

  4. American Association of University Women

    EIN 046053333 · Headquarters: Sutton, MA, US · Community Improvement & Capacity Building · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  5. American Association of University Women

    EIN 046059025 · Headquarters: Acton, MA, US · Community Improvement & Capacity Building · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  6. American Association of University Women

    EIN 046119587 · Headquarters: Sterling, MA, US · Community Improvement & Capacity Building · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  7. American Association of University Women

    EIN 046188588 · Headquarters: Canton, MA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. American Association of University Women

    EIN 046192001 · Headquarters: Braintree, MA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. American Association of University Women

    EIN 046197872 · Headquarters: Bridgewater, MA, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  10. American Association of University Women

    EIN 046197873 · Headquarters: Essex, MA, US · Community Improvement & Capacity Building · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  11. American Association of University Women

    EIN 046197879 · Headquarters: Attleboro, MA, US · Community Improvement & Capacity Building · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  12. American Association of University Women

    EIN 046197880 · Headquarters: Hariwch Port, MA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. American Association of University Women

    EIN 046197881 · Headquarters: Melrose, MA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. American Association of University Women Inc

    EIN 046043629 · Headquarters: Boston, MA, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  15. American Association of University Women of the State of Massachusett

    EIN 046141757 · Headquarters: Acton, MA, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. American Association of Variable Star Ob

    EIN 042164402 · Headquarters: CAMBRIDGE, MA, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990

  17. American Association of Zoo Keepers

    EIN 371427169 · Headquarters: New Bedford, MA, US · Animal Related · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  18. AMERICAN ASSOCIATION OF ZOO KEEPERS Zoo New England Chapter

    EIN 043098415 · Headquarters: Boston, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  19. American Bcg Laboratory Inc

    EIN 842869623 · Headquarters: Pittsfield, MA, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. American Begonia Society

    EIN 911933000 · Headquarters: Cambridge, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  21. American Big Band Preservation Society Inc

    EIN 270807646 · Headquarters: MILLBURY, MA, US · Arts, Culture & Humanities · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  22. American Bioethics & Culture Institute Abci Inc

    EIN 453552910 · Headquarters: Cambridge, MA, US · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. American Bladder Cancer Society

    EIN 261823498 · Headquarters: DALTON, MA, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  24. American Boad of Abdominal Surgery

    EIN 042242379 · Headquarters: BURLINGTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  25. American Board of Dermatology Inc

    EIN 131549125 · Headquarters: NEWTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  26. American Board of Nursing Specialties

    EIN 521943466 · Headquarters: BOXBOROUGH, MA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  27. American Brittany Club Inc

    EIN 362550600 · Headquarters: FRANKLIN, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  28. American Buddhism Learning Center

    EIN 365109062 · Headquarters: Needham, MA, USA · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  29. American Business Womens Assoc Greater New Bedford Chapter Inc

    EIN 043051895 · Headquarters: Westport, MA, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  30. American Cancer Aid

    EIN 464135642 · Headquarters: Lowell, MA, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  31. American Cancer Society Inc New England

    EIN 050271570 · Headquarters: Framingham, MA, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2011 · Primary form: IRS Form 990

  32. American Canine Assistance Program Inc

    EIN 475176296 · Headquarters: WEST BOYLSTON, MA, USA · Animal Related · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ

  33. American Century Music Inc

    EIN 263643103 · Headquarters: Worcester, MA, US · Arts, Culture & Humanities · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  34. American Chemical Society

    EIN 046058432 · Headquarters: Worcester, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. American Chemical Society

    EIN 208695151 · Headquarters: Lowell, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. American Chemical Society

    EIN 396065798 · Headquarters: Arlington, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  37. American Chinese Art Society

    EIN 222525427 · Headquarters: Cambridge, MA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. American Chinese Christian Education & Social Services Inc

    EIN 043119349 · Headquarters: BOSTON, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  39. American Chinese Medical Association

    EIN 133938992 · Headquarters: Acton, MA, US · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. American Chinese Medical Exchange Society Inc

    EIN 421750883 · Headquarters: BURLINGTON, MA, USA · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  41. American Chinese United Association

    EIN 842369278 · Headquarters: WOBURN, MA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. American Chinese United Association Ma Chapter Incorporated

    EIN 882248582 · Headquarters: WOBURN, MA, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. American Civic Association Inc

    EIN 043109868 · Headquarters: WINCHESTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  44. American Civil Liberties Union Foundation of Massachusetts

    EIN 237312949 · Headquarters: Boston, MA, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. American Classic Theater Inc

    EIN 453597258 · Headquarters: Worcester, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  46. American Classics Inc

    EIN 222674374 · Headquarters: Boston, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  47. American Coalition of Public Safety Inc

    EIN 263300214 · Headquarters: ALLSTON, MA, USA · Employment · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  48. American College of Chiropractic Orthopedists

    EIN 330202561 · Headquarters: Melrose, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  49. American College of Foot and Ankle Pediatrics Corp

    EIN 454573880 · Headquarters: WEST HATFIELD, MA, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  50. American College of History & Legal Studies Inc

    EIN 271410533 · Headquarters: ANDOVER, MA, USA · Crime & Legal Related · Latest available filing year: 2017 · Primary form: IRS Form 990

  51. American College of Nurse-midwives

    EIN 800546257 · Headquarters: Springfield, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. American Community Team Incorporated

    EIN 825305560 · Headquarters: Boston, MA, US · Housing & Shelter · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  53. American Compassion Life Association

    EIN 823111587 · Headquarters: Bedford, MA, USA · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  54. American Composers Forum of Boston Inc

    EIN 450519488 · Headquarters: Jamaica Plain, MA, US · Arts, Culture & Humanities · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  55. American Computer Foundation Inc Dba Charles River Public Internet Center

    EIN 043334562 · Headquarters: WALTHAM, MA, USA · Community Improvement & Capacity Building · Latest available filing year: 2017 · Primary form: IRS Form 990

  56. American Congregational Association

    EIN 042103658 · Headquarters: Boston, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  57. American Consumer Credit Counseling Inc

    EIN 043166982 · Headquarters: AUBURNDALE, MA, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990

  58. American Corpus Vitrearum Inc

    EIN 133556544 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. American Council of Educators in Plastic Surgery

    EIN 930932714 · Headquarters: BEVERLY, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  60. American Council of Engineering Companies of Massachusetts

    EIN 042448284 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  61. American Council of Engineering Companies of Massachusetts Ed Corp

    EIN 205465020 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  62. American Council on Education National Network of Women Leaders

    EIN 461165193 · Headquarters: LOWELL, MA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. American Counterterrorism Targeting and Resilience Institute Incorpor

    EIN 844204542 · Headquarters: Winchester, MA, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  64. American Credit Counseling Service Inc

    EIN 043155735 · Headquarters: Attleboro, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  65. American Dental Assistants Association

    EIN 237026205 · Headquarters: Worcester, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  66. American Dental Assistants Association

    EIN 237026283 · Headquarters: Fall River, MA, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. American Druze Society

    EIN 237155194 · Headquarters: SOUTH WEYMOUTH, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  68. American Education Defenders Inc

    EIN 853152198 · Headquarters: Southborough, MA, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  69. American Electrology Association American Electrology Association

    EIN 510142552 · Headquarters: CHELMSFORD, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  70. American Electroplaters Society

    EIN 221520640 · Headquarters: Auburn, MA, US · Science & Technology · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  71. American Fair Gift Association Inc

    EIN 452524753 · Headquarters: WORCESTER, MA, USA · Recreation & Sports · Latest available filing year: 2012 · Primary form: IRS Form 990-EZ

  72. American Family Center Inc

    EIN 201156838 · Headquarters: Boston, MA, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. American Federation & State County Municapal Employees

    EIN 043012009 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  74. American Federation for Medical Research

    EIN 526056060 · Headquarters: BEVERLY, MA, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990

  75. American Federation for Medical Research Foundation

    EIN 223061358 · Headquarters: BEVERLY, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  76. American Federation of Government

    EIN 596214606 · Headquarters: Byfield, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  77. American Federation of Government Employee

    EIN 900525877 · Headquarters: Worchester, MA, US · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  78. American Federation of Government Employees

    EIN 020344806 · Headquarters: Erving, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. American Federation of Government Employees

    EIN 042638229 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. American Federation of Government Employees

    EIN 042691649 · Headquarters: Sourth Wellfleet, MA, US · Employment · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  81. American Federation of Government Employees

    EIN 042693819 · Headquarters: Pittsfield, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. American Federation of Government Employees

    EIN 042783362 · Headquarters: East Fallmouth, MA, US · Employment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  83. American Federation of Government Employees

    EIN 046111407 · Headquarters: BOSTON, MA, US · Employment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  84. American Federation of Government Employees

    EIN 046113245 · Headquarters: Burlington, MA, US · Employment · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  85. American Federation of Government Employees

    EIN 046139053 · Headquarters: Baldwinville, MA, US · Employment · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  86. American Federation of Government Employees

    EIN 237009608 · Headquarters: Boston, MA, US · Employment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  87. American Federation of Government Employees

    EIN 237072196 · Headquarters: Otis ANG Bas, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  88. American Federation of Government Employees

    EIN 237148584 · Headquarters: Taunton, MA, US · Employment · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  89. American Federation of Government Employees

    EIN 237174737 · Headquarters: Boston, MA, US · Employment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  90. American Federation of Government Employees

    EIN 237185065 · Headquarters: LONGMEADOW, MA, US · Employment · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  91. American Federation of Government Employees

    EIN 273360001 · Headquarters: BOSTON, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. American Federation of Government Employees

    EIN 273671460 · Headquarters: Boston, MA, US · Employment · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  93. American Federation of Government Employees

    EIN 542133664 · Headquarters: Chicopee, MA, US · Employment · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  94. American Federation of Government Employees

    EIN 900525860 · Headquarters: Chicopee, MA, US · Employment · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  95. American Federation of Government Employees

    EIN 900526000 · Headquarters: Boston, MA, US · Employment · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  96. American Federation of Government Employees

    EIN 900526001 · Headquarters: Shirley, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. American Federation of Government Employees

    EIN 901185130 · Headquarters: Buzzards Bay, MA, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  98. American Federation of Govt Empl

    EIN 043441111 · Headquarters: Jamaica Plain, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  99. American Federation of Govt Employees Local 1164

    EIN 056014277 · Headquarters: East Longmeadow, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  100. American Federation of Govt Employees Local 2617

    EIN 273389964 · Headquarters: REVERE, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

First page and all pages