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. Hardwick Rural Collaborative Inc

    EIN 333675303 · Headquarters: Hardwick, MA, US · Food, Agriculture & Nutrition · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Hardy Elementary School Pto

    EIN 203201318 · Headquarters: Arlington, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  3. Hardy Parent Teacher Organization

    EIN 043238741 · Headquarters: WELLESLEY, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  4. Hardy Pond Association Inc

    EIN 223239685 · Headquarters: Waltham, MA, US · Environment · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  5. Hare of the Dog Inc

    EIN 921850839 · Headquarters: Pembroke, MA, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. Hares Paw Farm

    EIN 392836056 · Headquarters: Lakeville, MA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. Harkens Helping Hands Incorporated

    EIN 465736408 · Headquarters: Pembroke, MA, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  8. Harley Owners Group Cape Cod Chapter Ltd

    EIN 043094163 · Headquarters: POCASSET, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  9. Harley S Happy Place Inc

    EIN 871498023 · Headquarters: SOMERVILLE, MA, US · Animal Related · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  10. Harlot Queens Inc

    EIN 863311025 · Headquarters: WESTFIELD, MA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Harmon Apartments Housing Inc

    EIN 815429508 · Headquarters: BOSTON, MA, USA · Housing & Shelter · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  12. Harmony Academy Inc

    EIN 923602664 · Headquarters: PITTSFIELD, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  13. Harmony Cemetery Corporation

    EIN 046047389 · Headquarters: BOXFORD, MA, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. Harmony Cemetery Corporation

    EIN 260203063 · Headquarters: GEORGETOWN, MA, USA · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990

  15. Harmony Center Inc

    EIN 200314140 · Headquarters: Wayland, MA, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  16. Harmony Club of Worcester

    EIN 042816099 · Headquarters: WORCESTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  17. Harmony Fund Inc

    EIN 271293736 · Headquarters: Holden, MA, USA · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  18. Harmony Grove Cemetery Inc

    EIN 041418620 · Headquarters: SALEM, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  19. Harmony House Inc

    EIN 260263301 · Headquarters: CHICOPEE, MA, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990

  20. Harmony Inc

    EIN 043095401 · Headquarters: Northborough, MA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Harmony Inc

    EIN 043547149 · Headquarters: Walpole, MA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. Harmony Inc

    EIN 743066357 · Headquarters: Taunton, MA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Harmony Lodge 140

    EIN 933107092 · Headquarters: Springfield, MA, US · Food, Agriculture & Nutrition · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Harmony Seekers Association

    EIN 392831309 · Headquarters: Middleton, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. Harness Horsemans Association of New England Inc

    EIN 043525497 · Headquarters: Plainville, MA, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990

  26. Harold & Elizabeth Shattuck Memorial Fdn

    EIN 043393807 · Headquarters: MARBLEHEAD, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990

  27. Harold & Esther Edgerton Family Foundation

    EIN 222719185 · Headquarters: BOSTON, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2010 · Primary form: IRS Form 990-PF

  28. Harold Adler Family Foundation

    EIN 276195390 · Headquarters: BOSTON, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  29. Harold and Anna S Ullian Charitable Foundation

    EIN 043107591 · Headquarters: CHESTNUT HILL, MA, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-PF

  30. Harold and Janice Cohen Family Charitable Foundation

    EIN 262788231 · Headquarters: Boston, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  31. Harold D and Annette Price Family Foundation

    EIN 474119262 · Headquarters: Fall River, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  32. Harold Grinspoon Foundation

    EIN 046685725 · Headquarters: AGAWAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  33. Harold J Newman Brain Mapping Foundation Inc

    EIN 853530306 · Headquarters: ARLINGTON, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  34. Harold S Coleman & Mariam B Coleman Charitable Foundation Inc

    EIN 136115668 · Headquarters: Plymouth, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  35. Harold Tn Smith Memorial Foundation C/o Ryan & Coscia Pc

    EIN 046049997 · Headquarters: SALEM, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  36. Harp and Shamrock Charitiable FoundationInc

    EIN 813681733 · Headquarters: Paxton, MA, USA · Public & Societal Benefit · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  37. Harper Family Foundation

    EIN 571142855 · Headquarters: Boston, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  38. Harpley Foundation

    EIN 046720803 · Headquarters: READING, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  39. Harriet B Rogers Trust

    EIN 046055947 · Headquarters: Billerica, MA, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  40. Harriet Faunce Trust Uwill

    EIN 046035572 · Headquarters: HYANNIS, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  41. Harriet H Nicol Charitable Foundation

    EIN 843968467 · Headquarters: BOSTON, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  42. Harriet W Backus Charitable Trust

    EIN 872889015 · Headquarters: NANTUCKET, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  43. Harrill Family Foundation

    EIN 046905741 · Headquarters: WESTFORD, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  44. Harrington Elementary School PTA

    EIN 046189516 · Headquarters: Lexington, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  45. Harrington Healthcare System Inc

    EIN 800518491 · Headquarters: Southbridge, MA, USA · Health Care · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  46. Harrington Parent Teacher Organization Inc

    EIN 043162883 · Headquarters: North Chelmsford, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  47. Harrington Physician Services Inc

    EIN 134366504 · Headquarters: Southbridge, MA, USA · Health Care · Latest available filing year: 2020 · Primary form: IRS Form 990

  48. Harrington School Extended Day Program Inc

    EIN 042708792 · Headquarters: LEXINGTON, MA, USA · Education · Latest available filing year: 2014 · Primary form: IRS Form 990-EZ

  49. Harris Brook and East Street Pto

    EIN 660983588 · Headquarters: Ludlow, MA, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  50. Harris J and Geraldine S Nelson Foundation

    EIN 046029911 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  51. Harris M Tanner Museum of Scouting Inc

    EIN 842634423 · Headquarters: PLYMOUTH, MA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. Harrison Foundation Co Robert Glovsky

    EIN 046905478 · Headquarters: BOSTON, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2011 · Primary form: IRS Form 990-PF

  53. Harry & Ida Wise Family Fund

    EIN 046112180 · Headquarters: CHARLESTOWN, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  54. Harry & Maggie Van Sciver Foundation

    EIN 236296554 · Headquarters: MARSTONS MILLS, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  55. Harry Agganis Team Fund

    EIN 043185876 · Headquarters: Winthrop, MA, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. Harry C Barron Charitable Trust

    EIN 043219056 · Headquarters: SWAMPSCOTT, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  57. Harry H Dow Memorial Legal Assistance Fund

    EIN 222622801 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  58. Harry Mcdonough Sailing Center Inc

    EIN 043277830 · Headquarters: SOUTH BOSTON, MA, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  59. Harry W Hoffman Family Foundation

    EIN 237118978 · Headquarters: READING, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  60. Harrys Heroes

    EIN 460971038 · Headquarters: Pembroke, MA, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  61. Hart Foundation Co Phillips S Davis

    EIN 042775692 · Headquarters: WORCESTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  62. Hart Pond Association

    EIN 270116904 · Headquarters: Chelmsford, MA, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. Hart Speech Foundation Limited

    EIN 274361908 · Headquarters: MARSHFIELD, MA, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  64. Hartley Saw Mill Preservation Project Inc

    EIN 270165245 · Headquarters: ROCHESTER, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2012 · Primary form: IRS Form 990-EZ

  65. Hartsprings Foundation Inc

    EIN 043378672 · Headquarters: WEST SPRINGFIELD, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990

  66. Hartsuff Post Memorial Association

    EIN 800308356 · Headquarters: Rockland, MA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Harvard & Radcliffe Class of 1982

    EIN 222568220 · Headquarters: Newton, MA, US · Education · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  68. Harvard Aerospace Alumni Organization Inc

    EIN 861241293 · Headquarters: Hanover, MA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Harvard African Students Alumni Network

    EIN 522372008 · Headquarters: Cambridge, MA, US · Education · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  70. Harvard Alumni Entrepreneurs Inc

    EIN 208034421 · Headquarters: GLOUCESTER, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  71. Harvard Alumni for Agriculture and Food Association Inc

    EIN 863879189 · Headquarters: Boston, MA, USA · Food, Agriculture & Nutrition · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  72. Harvard Alumni for Mental Health Inc

    EIN 822754859 · Headquarters: Cambridge, MA, US · Mental Health & Crisis Intervention · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  73. Harvard Alumni in Healthcare Inc

    EIN 880710192 · Headquarters: Waban, MA, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  74. Harvard and Radcliffe Class of 1969

    EIN 043531073 · Headquarters: TOPSFIELD, MA, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  75. Harvard Athletic Association Inc

    EIN 042722216 · Headquarters: HARVARD, MA, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

  76. Harvard Band Foundation Inc

    EIN 042799839 · Headquarters: Cambridge, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  77. Harvard Black Alumni-alumnae Society Inc

    EIN 010779185 · Headquarters: Boston, MA, US · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  78. Harvard Boy Scouts Inc

    EIN 043631416 · Headquarters: Harvard, MA, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Harvard Business Impact

    EIN 043177990 · Headquarters: BRIGHTON, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  80. Harvard Business School Association of Boston

    EIN 046114711 · Headquarters: CAMBRIDGE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  81. Harvard Business School Christian Fellowship Alumni Association Inc

    EIN 460752204 · Headquarters: Cambridge, MA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Harvard Business School Class of 1982 Association

    EIN 043166814 · Headquarters: Marblehead, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  83. Harvard Business School Interactive Inc

    EIN 043395140 · Headquarters: Boston, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  84. Harvard Business School Lgbt Alumni Association

    EIN 844094785 · Headquarters: Brookline, MA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Harvard Business School Show Inc

    EIN 222476729 · Headquarters: Boston, MA, US · Education · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  86. Harvard Business School Student Association Inc

    EIN 046054794 · Headquarters: BOSTON, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. Harvard Business School Women's Association

    EIN 043452297 · Headquarters: Boston, MA, USA · Education · Latest available filing year: 2013 · Primary form: IRS Form 990-EZ

  88. Harvard Cabin Administrative Board Inc

    EIN 921352545 · Headquarters: Boston, MA, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Harvard Celebration Inc

    EIN 832131341 · Headquarters: Harvard, MA, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  90. Harvard Class of 1944

    EIN 861120727 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  91. Harvard Class of 1953 Association C/o Charles S Boit

    EIN 222481718 · Headquarters: BOSTON, MA, USA · Education · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  92. Harvard Class of 1955

    EIN 042818449 · Headquarters: FALMOUTH, MA, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  93. Harvard Class of 1971 Association

    EIN 042745103 · Headquarters: Chestnut Hill, MA, US · Education · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  94. Harvard Club of Boston

    EIN 041423320 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  95. Harvard Club of Boston Foundation

    EIN 046112005 · Headquarters: BOSTON, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  96. Harvard Club of Cape Cod

    EIN 222873556 · Headquarters: East Orleans, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. Harvard Club of Concord

    EIN 522390280 · Headquarters: Carlisle, MA, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  98. Harvard Club of Merrimack Valley Inc

    EIN 208971719 · Headquarters: ANDOVER, MA, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  99. Harvard Club of Quincy Inc

    EIN 237313963 · Headquarters: Winchester, MA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. Harvard Club of the North Shore Inc

    EIN 452690976 · Headquarters: ROCKPORT, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

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