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 Legion Auxiliary Lt Roger P Warfield Unit 373

    EIN 043131710 · Headquarters: Baldwinville, MA, US · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  2. American Legion Auxiliary of Indian Orchard Unit to Post No 277

    EIN 046118580 · Headquarters: Indian Orchard, MA, US · Public & Societal Benefit · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  3. American Legion Auxiliary Sudbury Post 191 Inc

    EIN 921098114 · Headquarters: Sudbury, MA, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. American Legion Auxiliary Unit

    EIN 046116753 · Headquarters: Grafton, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. American Legion Auxiliary Unit 101

    EIN 043134929 · Headquarters: Woburn, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. American Legion Auxiliary Unit 123 Inc

    EIN 822408466 · Headquarters: WARE, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. American Legion Auxiliary Unit 151

    EIN 461442687 · Headquarters: Leominster, MA, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. American Legion Auxiliary Unit 2

    EIN 300517895 · Headquarters: BARRE, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  9. American Legion Auxiliary Unit 22

    EIN 881738227 · Headquarters: Whitman, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  10. American Legion Auxiliary Unit#247

    EIN 311028083 · Headquarters: TYNGSBORO, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. American Legion Auxiliary Worcester County Council

    EIN 611585141 · Headquarters: Templeton, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  12. American Legion Auxillary Post 488

    EIN 364678575 · Headquarters: South Dennis, MA, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  13. American Legion Auxilliary

    EIN 300515157 · Headquarters: NORTH BROOKFIELD, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. American Legion Beckwith Post 110

    EIN 042326621 · Headquarters: MEDFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  15. American Legion Dba Lewis V Dorsey Post 112

    EIN 046072790 · Headquarters: ABINGTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  16. American Legion Department of Massachusetts Inc

    EIN 041028060 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  17. American Legion Edward J Beatty Po

    EIN 046189299 · Headquarters: CANTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990

  18. American Legion George B Preston Post 209

    EIN 046189600 · Headquarters: DOVER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  19. American Legion George J Morin Post 183 Inc

    EIN 046189355 · Headquarters: SHIRLEY, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  20. American Legion George K Menichios Post 324

    EIN 046189378 · Headquarters: NEEDHAM, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  21. American Legion Hanson Post 226 Inc

    EIN 046189318 · Headquarters: HANSON, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  22. American Legion Inc

    EIN 046115980 · Headquarters: Middleborough, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. American Legion Inc - Post 125

    EIN 042041303 · Headquarters: NORTH ADAMS, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  24. American Legion Inc Chester P Tuttle Post 279

    EIN 042284267 · Headquarters: Auburn, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  25. American Legion James Morris Post 145 Inc

    EIN 472728580 · Headquarters: WESTPORT, MA, US · Public & Societal Benefit · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  26. American Legion Leo C Roth Post 315

    EIN 046189621 · Headquarters: DRACUT, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  27. American Legion Miller Terrell Post 199

    EIN 042592401 · Headquarters: West Townsend, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. American Legion No 429 Cleghorn

    EIN 046124138 · Headquarters: FITCHBURG, MA, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ

  29. American Legion Old Dorchester Post 65 Inc

    EIN 046189298 · Headquarters: Dorchester Center, MA, USA · Public & Societal Benefit · Latest available filing year: 2018 · Primary form: IRS Form 990

  30. American Legion Old Hadley Post 271

    EIN 046136566 · Headquarters: Hadley, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  31. American Legion Plymouth Post 40

    EIN 042282218 · Headquarters: PLYMOUTH, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  32. American Legion Post #265

    EIN 042121763 · Headquarters: ACUSHNET, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  33. American Legion Post #294

    EIN 041637607 · Headquarters: Quincy, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  34. American Legion Post #442

    EIN 046309176 · Headquarters: CAMBRIDGE, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  35. American Legion Post 120

    EIN 651162423 · Headquarters: HINGHAM, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. American Legion Post 122

    EIN 046170153 · Headquarters: METHUEN, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. American Legion Post 123

    EIN 046190001 · Headquarters: Ware, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  38. American Legion Post 129

    EIN 041028104 · Headquarters: GARDNER, MA, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990

  39. American Legion Post 148 Amherst

    EIN 042155179 · Headquarters: AMHERST, MA, USA · Public & Societal Benefit · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  40. American Legion Post 150

    EIN 046190004 · Headquarters: Newburyport, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. American Legion Post 156

    EIN 046189364 · Headquarters: WALTHAM, MA, USA · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  42. American Legion Post 160

    EIN 042121791 · Headquarters: ADAMS, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  43. American Legion Post 18-Dedham Post

    EIN 042142593 · Headquarters: Dedham, MA, USA · Public & Societal Benefit · Latest available filing year: 2019 · Primary form: IRS Form 990

  44. American Legion Post 204 Harold N Keith

    EIN 046166379 · Headquarters: WEST BOYLSTON, MA, USA · Public & Societal Benefit · Latest available filing year: 2023 · Primary form: IRS Form 990

  45. American Legion Post 207

    EIN 041028140 · Headquarters: WEST SPRINGFIELD, MA, USA · Public & Societal Benefit · Latest available filing year: 2017 · Primary form: IRS Form 990

  46. American Legion Post 217 John Edward Mcneil

    EIN 046189404 · Headquarters: PLAINVILLE, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  47. American Legion Post 225

    EIN 046189390 · Headquarters: WRENTHAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  48. American Legion Post 227

    EIN 046189426 · Headquarters: MIDDLETON, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  49. American Legion Post 257

    EIN 042724716 · Headquarters: Vineyard Haven, MA, USA · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990

  50. American Legion Post 273 Millican-mackenzie

    EIN 046189307 · Headquarters: BURLINGTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  51. American Legion Post 277

    EIN 046049418 · Headquarters: INDIAN ORCHARD, MA, USA · Public & Societal Benefit · Latest available filing year: 2011 · Primary form: IRS Form 990

  52. American Legion Post 3 Capt Lester S Wass

    EIN 042006275 · Headquarters: GLOUCESTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  53. American Legion Post 303

    EIN 046189341 · Headquarters: SWANSEA, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  54. American Legion Post 308

    EIN 046136567 · Headquarters: ORLEANS, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  55. American Legion Post 314

    EIN 046189611 · Headquarters: Fall River, MA, USA · Public & Societal Benefit · Latest available filing year: 2015 · Primary form: IRS Form 990-EZ

  56. American Legion Post 361

    EIN 046189391 · Headquarters: ASHBY, MA, USA · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  57. American Legion Post 367

    EIN 046291787 · Headquarters: Medway, MA, USA · Public & Societal Benefit · Latest available filing year: 2015 · Primary form: IRS Form 990-EZ

  58. American Legion Post 386

    EIN 471960122 · Headquarters: East Brookfield, MA, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  59. American Legion Post 405

    EIN 046135279 · Headquarters: Raynham, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  60. American Legion Post 420

    EIN 042187883 · Headquarters: SPRINGFIELD, MA, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

  61. American Legion Post 45

    EIN 041609295 · Headquarters: MEDFORD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  62. American Legion Post 462

    EIN 542131316 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  63. American Legion Post 58

    EIN 046189993 · Headquarters: Oxford, MA, USA · Public & Societal Benefit · Latest available filing year: 2017 · Primary form: IRS Form 990

  64. American Legion Post 68 Charitable Trust

    EIN 043192156 · Headquarters: PITTSFIELD, MA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. American Legion Post 69 -Malden

    EIN 042397800 · Headquarters: MALDEN, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  66. American Legion Post 8 Andover

    EIN 046189573 · Headquarters: Andover, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. American Legion Post 81

    EIN 042126022 · Headquarters: GREENFIELD, MA, USA · Public & Societal Benefit · Latest available filing year: 2012 · Primary form: IRS Form 990-EZ

  68. American Legion Post 87

    EIN 264612372 · Headquarters: Lowell, MA, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990

  69. American Legion Post 88

    EIN 046189422 · Headquarters: MARSHFIELD, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. American Legion Riders 101 Woburn Inc

    EIN 863378472 · Headquarters: Woburn, MA, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. American Legion Riders Bedford Chapter 221 Corporation

    EIN 822665491 · Headquarters: BEDFORD, MA, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. American Legion Robert D Pelletier Post 247

    EIN 042307238 · Headquarters: TYNGSBORO, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  73. American Legion Rockland Post 147

    EIN 046190003 · Headquarters: ROCKLAND, MA, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. American Legion Somerville Post #19

    EIN 041028125 · Headquarters: SOMERVILLE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  75. American Legion Southwick Post 338

    EIN 046189612 · Headquarters: SOUTHWICK, MA, USA · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  76. American Legion Tatnuck Post 288

    EIN 042896236 · Headquarters: Worcester, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  77. American Legion Wilbur M Comeau Post 4

    EIN 040063132 · Headquarters: HAVERHILL, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  78. American Legion Willimansett Post Dept Mass No 353

    EIN 464524237 · Headquarters: Chicopee, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  79. American Legion Winthrop Piost 146 Inc

    EIN 823469580 · Headquarters: WINTHROP, MA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  80. American Legion-236 Gerald E Larkin

    EIN 042149806 · Headquarters: HAYDENVILLE, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  81. American Life and Safety Training

    EIN 883127503 · Headquarters: Fall River, MA, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  82. American Liszt Society New York - New Jersey Chapter

    EIN 275462586 · Headquarters: Brookline, MA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. American Lithuanian Naturalization Club

    EIN 041028215 · Headquarters: ATHOL, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  84. American Little League of Fall River Inc

    EIN 611409354 · Headquarters: Fall River, MA, USA · Recreation & Sports · Latest available filing year: 2017 · Primary form: IRS Form 990-EZ

  85. American Macular Degeneration Goehring

    EIN 043274007 · Headquarters: NORTHAMPTON, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990

  86. AMERICAN MARKETING ASSOCIATION INC Boston Chapter

    EIN 237348824 · Headquarters: Westborough, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  87. American Matthay Association Incorporated

    EIN 237042477 · Headquarters: ACTON, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  88. American Medical Extended Reality Association Inc

    EIN 883807359 · Headquarters: Boston, MA, US · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. American Medical Resources Foundation

    EIN 222939305 · Headquarters: FALL RIVER, MA, USA · International, Foreign Affairs & National Security · Latest available filing year: 2022 · Primary form: IRS Form 990

  90. American Medical Womens Association Br39

    EIN 042760721 · Headquarters: NEWTON CENTER, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. American Meteorological Society

    EIN 042103657 · Headquarters: BOSTON, MA, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. American Mettle

    EIN 821952394 · Headquarters: Stoneham, MA, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. American Model Yachting Assn

    EIN 237287839 · Headquarters: WILMINGTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  94. American Museum of Antique Toys Inc

    EIN 222212289 · Headquarters: GREAT BARRINGTON, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2013 · Primary form: IRS Form 990-PF

  95. American Musical Instrument Society Inc

    EIN 132896023 · Headquarters: IPSWICH, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  96. American Muslim Center

    EIN 274647824 · Headquarters: Everett, MA, USA · Religion Related · Latest available filing year: 2016 · Primary form: IRS Form 990

  97. American Myalgic Encephalomyelitis & Chronic Fatigue Syndrome Society

    EIN 813562025 · Headquarters: Hadley, MA, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  98. American National Latvian League Inc

    EIN 043215645 · Headquarters: Newton, MA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. American Natural Healthcare Society

    EIN 455045941 · Headquarters: Walpole, MA, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  100. American Nephrology Nurses Association

    EIN 300640657 · Headquarters: Westwood, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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