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. Mullein Hill Christian Academy Inc

    EIN 043192159 · Headquarters: LAKEVILLE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  2. Mullen House Education Center Inc

    EIN 201633729 · Headquarters: Becket, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Multicultural Children S Book Day Inc

    EIN 472528706 · Headquarters: Newton, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  4. Multicultural Education Training and Advocacy (Meta) Project Inc

    EIN 222662063 · Headquarters: SOMERVILLE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  5. Multiloop Edgewise Arch Wire

    EIN 043124222 · Headquarters: WESTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  6. Multiple District No 33 Lions Clubs Int

    EIN 830504460 · Headquarters: TAUNTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  7. Multistate Association for Bilingual Education – Northeast

    EIN 042879833 · Headquarters: Ashland, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  8. Mulvey-needleman Family Foundation

    EIN 874145225 · Headquarters: DEDHAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-PF

  9. Municipal Electric Assn of Massachusettes Inc

    EIN 042321706 · Headquarters: Littleton, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  10. Municipal Public Access Cable Television Inc

    EIN 222677962 · Headquarters: PALMER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  11. Munschauer Family Foundation

    EIN 161428095 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  12. Music at Edens Edge Inc

    EIN 042780636 · Headquarters: ESSEX, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  13. Music for Food Inc

    EIN 320384693 · Headquarters: NEWTON CENTRE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  14. Music Library Association

    EIN 050436118 · Headquarters: Cambridge, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  15. Musica Sacra Limited

    EIN 042656831 · Headquarters: CAMBRIDGE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  16. Musicians of the Old Post Road Inc

    EIN 222968711 · Headquarters: Weston, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  17. Mustangs of Massachusetts Inc

    EIN 800965375 · Headquarters: Burlington, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. Muwendo Foundation Inc

    EIN 842625046 · Headquarters: North Billerica, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. Mv Racqueteers

    EIN 272584039 · Headquarters: Edgartown, MA, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  20. Mwc Foundation Inc #0726315

    EIN 222914691 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  21. Mwra Local 1242 Aflcio-afscme

    EIN 046190199 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  22. My Brother's Table Inc

    EIN 042794047 · Headquarters: LYNN, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  23. My Flag Project

    EIN 853976786 · Headquarters: Malden, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. My One Wish Co Virginia Brenna

    EIN 042868891 · Headquarters: MILFORD, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  25. Myasthenia Gravis Foundation of America Inc

    EIN 135672224 · Headquarters: Westborough, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  26. Myopia Hunt Club

    EIN 041648210 · Headquarters: SOUTH HAMILTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  27. Myricks Airfield Foundation

    EIN 471160927 · Headquarters: BERKLEY, MA, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  28. Myricks Airfield Foundation

    EIN 743964655 · Headquarters: Berkley, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  29. Mystic Order of Veiled Prophets of Enchanted Realm

    EIN 041891558 · Headquarters: Randolph, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Mystic Order of Veiled Prophets of Enchanted Realm

    EIN 237535514 · Headquarters: Feeding Hills, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. Mystic Order of Veiled Prophets of Enchanted Realm

    EIN 471044825 · Headquarters: Attleboro, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. Mystic Order of Veiled Prophets of Enchanted Realm

    EIN 833962346 · Headquarters: SHIRLEY, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Mystic Order of Veiled Prophets of the Enchanted Realm Supreme Counci

    EIN 993148407 · Headquarters: ACUSHNET, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. Mystic Valley Crew Team

    EIN 824012054 · Headquarters: Melrose, MA, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  35. Mystic Valley YMCA

    EIN 042105874 · Headquarters: MALDEN, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  36. Mystic Wellington Yacht Club Inc

    EIN 042520766 · Headquarters: Medford, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. Na Big Red Lax

    EIN 455482216 · Headquarters: NORTH ATTLEBORO, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  38. Na United Alumni

    EIN 465247013 · Headquarters: NORTH ATTLEBORO, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  39. Nabnasset Lake Country Club Inc

    EIN 041648865 · Headquarters: Westford, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  40. Nacm - New England Inc

    EIN 041103770 · Headquarters: WESTBOROUGH, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. Nage R1-180

    EIN 464503389 · Headquarters: Holyoke, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  42. Nahant Dory Club

    EIN 042680858 · Headquarters: Nahant, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Nahant Firefighters Association

    EIN 473672370 · Headquarters: NAHANT, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. Nahant Historical Society

    EIN 237431293 · Headquarters: NAHANT, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  45. Nahant Little League Baseball Inc

    EIN 042755141 · Headquarters: Nahant, MA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  46. Nahanton Woods Inc

    EIN 042714502 · Headquarters: NEWTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-PF

  47. Naiop Massachusetts Inc

    EIN 042771582 · Headquarters: NEEDHAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  48. Nami Cape Cod Inc

    EIN 042785229 · Headquarters: HYANNIS, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  49. Nami Central Mass Inc

    EIN 043266368 · Headquarters: Worcester, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. Nami Northeast Essex Inc

    EIN 043049546 · Headquarters: HAVERHILL, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  51. Nami of Bristol County Massachusetts Inc

    EIN 222482873 · Headquarters: Fall River, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. Namugongo Fund for Special Children - USA Nfsc - USA

    EIN 300360614 · Headquarters: Mattapan, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  53. Nan Weinstein Family Foundation

    EIN 592320909 · Headquarters: BROOKLINE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  54. Nana's Tea Time Treats Inc

    EIN 832228255 · Headquarters: NORTH READING, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  55. Nancy & Maurice Lazarus Fund

    EIN 046039456 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  56. Nancy Sayles Day Foundation

    EIN 066071254 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  57. Nancy-carroll Draper Char Fdn

    EIN 046726873 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  58. Nantasket Beach Salt Water Club Inc

    EIN 043104241 · Headquarters: HULL, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  59. Nantucket Alerion Fleet Association Inc

    EIN 472156849 · Headquarters: Nantucket, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  60. Nantucket Anglers Club Inc

    EIN 042455243 · Headquarters: Nantucket, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  61. Nantucket Atheneum Inc

    EIN 042104412 · Headquarters: NANTUCKET, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  62. Nantucket Boys and Girls Club Inc

    EIN 046114678 · Headquarters: NANTUCKET, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  63. Nantucket Center for Elder Affairs Inc

    EIN 510192440 · Headquarters: NANTUCKET, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  64. Nantucket Civic League

    EIN 046006527 · Headquarters: NANTUCKET, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  65. Nantucket Community Garden

    EIN 043138256 · Headquarters: Nantucket, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Nantucket Community Service Inc

    EIN 042777769 · Headquarters: NANTUCKET, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  67. Nantucket Island Little League

    EIN 043332372 · Headquarters: Nantucket, MA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  68. Nantucket Island School of Design and the Arts Inc

    EIN 042642384 · Headquarters: NANTUCKET, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  69. Nantucket Maria Mitchell Association In

    EIN 042129139 · Headquarters: NANTUCKET, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  70. Nantucket Partnership for Children Inc

    EIN 222957434 · Headquarters: NANTUCKET, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  71. Nantucket Platform Tennis Assoc Inc

    EIN 042591297 · Headquarters: NANTUCKET, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  72. Nantucket Yacht Club

    EIN 041649850 · Headquarters: NANTUCKET, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. Napoleon Club of Gardner Ma Inc

    EIN 042218264 · Headquarters: GARDNER, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  74. Naps-43

    EIN 046072466 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  75. Narragansett Rec Basketball

    EIN 475575035 · Headquarters: BALDWINVILLE, MA, USA · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-EZ

  76. Nashoba Sportsman's Club Inc

    EIN 810873968 · Headquarters: Acton, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  77. Nashoba Valley Chorale Inc The

    EIN 042705408 · Headquarters: Littleton, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  78. Nashoba Valley Hunt Inc

    EIN 042379941 · Headquarters: Worcester, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Nashoba Valley Neighbors

    EIN 042680606 · Headquarters: GROTON, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Nashoba Valley Photo Club

    EIN 352484242 · Headquarters: Westford, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  81. Nashoba Valley Ski Club

    EIN 222721947 · Headquarters: ARLINGTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  82. Nashville 2024 Host Committee

    EIN 874651968 · Headquarters: Beverly, MA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  83. Nathaniel & Elizabeth P Stevens Foundation

    EIN 042236996 · Headquarters: NORTH ANDOVER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  84. Nathaniel Saltonstall Arts Fund C/o Berger Katz Weshaus & Lenza Pc

    EIN 046124122 · Headquarters: CANTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  85. Nathaniel Taylor Fund Inc

    EIN 046065495 · Headquarters: HANOVER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  86. Natick Cooperative Playgroup

    EIN 043077841 · Headquarters: Natick, MA, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  87. Natick Education Foundation

    EIN 043166767 · Headquarters: Natick, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  88. Natick Police Relief Association Inc

    EIN 046112353 · Headquarters: NATICK, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  89. National Active and Retired Federal Employees Association

    EIN 042600020 · Headquarters: Beverly, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. National Active and Retired Federal Employees Association

    EIN 042645614 · Headquarters: Watertown, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  91. National Active and Retired Federal Employees Association

    EIN 042671075 · Headquarters: Beverly, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. National Active and Retired Federal Employees Association

    EIN 046168857 · Headquarters: Weymouth, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  93. National Active and Retired Federal Employees Association

    EIN 046168864 · Headquarters: Belchertown, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. National Active and Retired Federal Employees Association

    EIN 046168868 · Headquarters: Norwood, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. National Active and Retired Federal Employees Association

    EIN 046168869 · Headquarters: West Yarmouth, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. National Active and Retired Federal Employees Association

    EIN 046168886 · Headquarters: Brockton, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. National Active and Retired Federal Employees Association

    EIN 046168892 · Headquarters: Lawrence, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  98. National Active and Retired Federal Employees Association

    EIN 046168893 · Headquarters: Chelmsford, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  99. National Air Traffic Controllers Association

    EIN 043019006 · Headquarters: East Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. National Air Traffic Controllers Association

    EIN 043020589 · Headquarters: Nantucket, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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