Unknown & Unclassified nonprofits in Massachusetts

Unknown & Unclassified nonprofits in Massachusetts. Browse 12,299 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. Air Transportation Research International Forum Inc

    EIN 462414048 · Headquarters: Cambridge, MA, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  2. Airedale Terrier Club of New England

    EIN 042657963 · Headquarters: Duxbury, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  3. Aksius Research Institute Inc

    EIN 275198501 · Headquarters: Newton, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Al-anon Family Groups of Massachusetts Inc

    EIN 046123349 · Headquarters: WESTBOROUGH, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  5. Alan & Corinne Swoff Charitable Foundation

    EIN 526914005 · Headquarters: NORTHBOROUGH, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  6. Alano Club of Springfield Inc

    EIN 042480064 · Headquarters: Agawam, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  7. Alantic City High School Class of 1951

    EIN 800503748 · Headquarters: Lexington, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Albanian American National Organization

    EIN 800651516 · Headquarters: Sutton, MA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  9. Albert and Ruth Thomas Scholarship Fund

    EIN 046392636 · Headquarters: HINGHAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  10. Albert E Marks Charitable Trust

    EIN 042680681 · Headquarters: CAMBRIDGE, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  11. Albert H & Reuben S Stone Fund

    EIN 046050419 · Headquarters: Gardner, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  12. Albert N Parlin House Inc #95-545270

    EIN 042106705 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  13. Albert N Parlin Trust Uw Art 3 #95-545010

    EIN 510150855 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  14. Alcide Ruffini Trust Fbo Plymouth Lions

    EIN 046607684 · Headquarters: HANOVER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  15. Alcorn Inc

    EIN 332457361 · Headquarters: BEVERLY, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  16. Alden Credit Union

    EIN 041020315 · Headquarters: CHICOPEE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  17. Alea Iii Inc

    EIN 042692427 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  18. Aleppo Brew Club

    EIN 844282747 · Headquarters: WILMINGTON, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. Aleppo Shriners

    EIN 041032819 · Headquarters: WILMINGTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  20. Aleppo Shriners Group Return

    EIN 510149454 · Headquarters: WILMINGTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  21. Aleppo Temple Shrine Activities Inc

    EIN 041020667 · Headquarters: WILMINGTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  22. Alert Hose Co

    EIN 043236196 · Headquarters: ADAMS, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  23. Alewives Anonymous Inc

    EIN 222578641 · Headquarters: Rochester, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Alfred & Constance Wolf Aviation Fund

    EIN 232494508 · Headquarters: HARWICH, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  25. Alfred and Gilda Slifka Foundation

    EIN 464223675 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  26. Algonquin Baseball & Softball Ass Inc

    EIN 521234809 · Headquarters: Northborough, MA, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  27. Algonquin Baseball & Softball Ass Inc

    EIN 902395863 · Headquarters: Northborough, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  28. Algonquin Club of Boston Inc

    EIN 041021230 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  29. Alice L Macdougall Tr Uw Fbo Schol

    EIN 046044855 · Headquarters: HANOVER, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  30. Alice S Ayling Scholarship Foundation C/o Gerald B O'grady Tyler & Reynolds

    EIN 222808952 · Headquarters: WOBURN, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  31. Align Credit Union

    EIN 041680140 · Headquarters: LOWELL, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  32. Alkoura League Inc

    EIN 205767549 · Headquarters: CHELMSFORD, MA, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  33. All About You Recovery Llc

    EIN 932719277 · Headquarters: GARDNER, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  34. All Care Resources Inc

    EIN 042805564 · Headquarters: LYNN, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  35. All Care Visiting Nurse Association of Greater Lynn Inc

    EIN 042214847 · Headquarters: LYNN, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  36. All Dorchester Sports & Leadership Inc

    EIN 222827346 · Headquarters: Dorchester, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. All Hands on Deck Network Inc

    EIN 371697474 · Headquarters: NORTHAMPTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  38. All One Credit Union

    EIN 042348884 · Headquarters: LEOMINSTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  39. All Our Children Inc

    EIN 823691657 · Headquarters: COTUIT, MA, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  40. All Seasons Theatre Company Incorporated

    EIN 010801629 · Headquarters: Provincetown, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. All Team Inc

    EIN 465229714 · Headquarters: Northampton, MA, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  42. All-4-one Solutions Inc

    EIN 270996360 · Headquarters: Boylston, MA, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  43. Allard Org Inc

    EIN 384015877 · Headquarters: GREAT BARRINGTON, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. Allen & Franka Charlupski Foundation C/o Helen Charlupski

    EIN 237191093 · Headquarters: BROOKLINE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  45. Allen Harbor Yacht Club Inc

    EIN 042423731 · Headquarters: HARWICH PORT, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  46. Allex Inc

    EIN 203252049 · Headquarters: ACTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  47. Alliance Afscme-seiu

    EIN 042558817 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  48. Alliance for Animals and the Environment

    EIN 043142980 · Headquarters: Swampscott, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. Alliance for Inclusion and Prevention Inc

    EIN 043285237 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. Alliance for Mentally Ill of Greater Lowell

    EIN 042999846 · Headquarters: TYNGSBORO, MA, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  51. Alliance for Municipal Performance Inc

    EIN 471833991 · Headquarters: Lynnfield, MA, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  52. Alliance for Safe Neighborhoods Inc

    EIN 993062502 · Headquarters: Beverly, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. Alliance for State and Consumer

    EIN 383930245 · Headquarters: Brockton, MA, USA · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-EZ

  54. Alliance of Automotive Service Providers Inc

    EIN 043323996 · Headquarters: Braintree, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  55. Alliance of Massachusetts Amusement Businesses and Attractions Inc

    EIN 364655041 · Headquarters: WELLESLEY, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. Alliance of Massachusetts Ymcas Inc

    EIN 043176393 · Headquarters: ANDOVER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  57. Alliance of the Massachusetts Dental Society

    EIN 611561300 · Headquarters: LOWELL, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Alliance of Tmd Organizations

    EIN 300913011 · Headquarters: Sharon, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Alliance Protecting Pennsylvania in C

    EIN 413120685 · Headquarters: Beverly, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. Alltrust Credit Union

    EIN 041853650 · Headquarters: FAIRHAVEN, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  61. Alpha Chi Omega Fraternity Inc

    EIN 825144199 · Headquarters: Hudson, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Alpha Chi Rho Fraternity Delta Sigma Phi Bldg Assn

    EIN 042398377 · Headquarters: WORCESTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  63. Alpha Chi Sigma Fraternity Collegiate Chapter

    EIN 812802753 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Alpha Chi Sigma Fraternity Professional Chapter

    EIN 461020495 · Headquarters: Peabody, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  65. Alpha Credit Union

    EIN 046054447 · Headquarters: Boston, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  66. Alpha Delta Kappa Sorority Inc

    EIN 042723046 · Headquarters: Pembroke, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  67. Alpha Delta Kappa Sorority Inc

    EIN 510205402 · Headquarters: South Easton, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. Alpha Delta Kappa Sorority Inc

    EIN 510251847 · Headquarters: Raynham, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Alpha Epsilon Pi - Eta Psi

    EIN 464583297 · Headquarters: Cambridge, MA, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  70. Alpha Epsilon Pi Fraternity

    EIN 202330652 · Headquarters: Waltham, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. Alpha Gamma Delta Fraternity

    EIN 901501942 · Headquarters: Chelmsford, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Alpha Kappa Sigma Alumni Inc

    EIN 393726948 · Headquarters: Boston, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  73. Alpha Omega Council Inc

    EIN 042678299 · Headquarters: FOXBOROUGH, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  74. Alpha Omega International Dental Fraternity

    EIN 046112839 · Headquarters: Andover, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  75. Alpha Omicron Pi Fraternity Inc

    EIN 042998098 · Headquarters: Melrose, MA, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  76. Alpha Omicron Pi Fraternity Inc

    EIN 364662944 · Headquarters: Quincy, MA, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  77. Alpha Phi Omega

    EIN 046122378 · Headquarters: Amherst, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. Alpha Phi Omega

    EIN 046139045 · Headquarters: Worcester, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Alpha Phi Omega

    EIN 431678712 · Headquarters: BOSTON, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  80. Alpha Pi Mu Association

    EIN 611724688 · Headquarters: Worcester, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  81. Alpha Sigma Kappa - Women in Technical Studies

    EIN 843883015 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  82. Alpha Theta Chapter of Sigma Chi Inc

    EIN 042761368 · Headquarters: Wellesley, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  83. Alpha Xi Delta Building Corporation of Kingston Rhode Island

    EIN 056013066 · Headquarters: ANDOVER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  84. Alpha Zeta Omega Pharmaceutical Fraternity

    EIN 834318943 · Headquarters: Southwick, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  85. Alpha Zeta Omega Pharmaceutical Fraternity

    EIN 901005086 · Headquarters: Springfield, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  86. Alternative Supports Inc

    EIN 042590177 · Headquarters: WALTHAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. Alternatives for Youth Foundation Inc

    EIN 043276173 · Headquarters: MARLBOROUGH, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  88. Alton F and Sibyl W Randall Scholarship

    EIN 042639182 · Headquarters: BOURNE, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  89. Altrusa International Foundation of Plymouth County Ma Inc

    EIN 822722024 · Headquarters: NORWELL, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  90. Altrusa International of Plymouth County Ma Inc

    EIN 822536871 · Headquarters: Norwell, MA, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  91. Alumnae Association of Mount Holyoke College

    EIN 203578234 · Headquarters: South Hadley, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Alumnae Association of Mount Holyoke College

    EIN 203631773 · Headquarters: South Hadley, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  93. Alumnae Association of Mount Holyoke College

    EIN 222192929 · Headquarters: South Hadley, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Alumnae Association of Mount Holyoke College In

    EIN 592830805 · Headquarters: South Hadley, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. Alumnae Association of Mount Holyoke College Inc

    EIN 020335684 · Headquarters: South Hadley, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Alumnae Association of Mount Holyoke College Inc

    EIN 020370171 · Headquarters: South Hadley, MA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  97. Alumnae Association of Mount Holyoke College Inc

    EIN 020489625 · Headquarters: South Hadley, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  98. Alumnae Association of Mount Holyoke College Inc

    EIN 042622898 · Headquarters: South Hadley, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Alumnae Association of Mount Holyoke College Inc

    EIN 042622986 · Headquarters: South Hadley, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. Alumnae Association of Mount Holyoke College Inc

    EIN 042664530 · Headquarters: South Hadley, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

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