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. International Association of Fire Fighters

    EIN 042677733 · Headquarters: NAHANT, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. International Association of Fire Fighters

    EIN 043005925 · Headquarters: Dudley, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. International Association of Fire Fighters

    EIN 043076789 · Headquarters: Topsfield, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  4. International Association of Fire Fighters

    EIN 043118554 · Headquarters: Middleton, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  5. International Association of Fire Fighters

    EIN 043144814 · Headquarters: Plainville, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  6. International Association of Fire Fighters

    EIN 043385972 · Headquarters: Brewster, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  7. International Association of Fire Fighters

    EIN 043446268 · Headquarters: Avon, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. International Association of Fire Fighters

    EIN 043491898 · Headquarters: Uxbridge, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  9. International Association of Fire Fighters

    EIN 046113394 · Headquarters: Newburyport, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. International Association of Fire Fighters

    EIN 046142844 · Headquarters: FAIRHAVEN, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  11. International Association of Fire Fighters

    EIN 046143955 · Headquarters: Randolph, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. International Association of Fire Fighters

    EIN 046143981 · Headquarters: Haverhill, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  13. International Association of Fire Fighters

    EIN 204531800 · Headquarters: Mendon, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. International Association of Fire Fighters

    EIN 204959265 · Headquarters: Oxford, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  15. International Association of Fire Fighters

    EIN 205289041 · Headquarters: Shirley, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  16. International Association of Fire Fighters

    EIN 237063573 · Headquarters: Westport, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  17. International Association of Fire Fighters

    EIN 237082499 · Headquarters: Ludlow, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  18. International Association of Fire Fighters

    EIN 237082505 · Headquarters: EASTHAMPTON, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  19. International Association of Fire Fighters

    EIN 237082517 · Headquarters: Concord, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  20. International Association of Fire Fighters

    EIN 237277947 · Headquarters: Abington, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  21. International Association of Fire Fighters

    EIN 237412979 · Headquarters: Dedham, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  22. International Association of Fire Fighters

    EIN 237447828 · Headquarters: Whitman, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  23. International Association of Fire Fighters

    EIN 237453945 · Headquarters: Centerville, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  24. International Association of Fire Fighters

    EIN 260967929 · Headquarters: Medway, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. International Association of Fire Fighters

    EIN 454213108 · Headquarters: Westfield, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  26. International Association of Fire Fighters

    EIN 460811761 · Headquarters: Westminster, MA, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  27. International Association of Fire Fighters

    EIN 465649230 · Headquarters: STERLING, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  28. International Association of Fire Fighters

    EIN 510190324 · Headquarters: Turners Falls, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  29. International Association of Fire Fighters

    EIN 510191668 · Headquarters: Athol, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  30. International Association of Fire Fighters

    EIN 510209343 · Headquarters: Leominster, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  31. International Association of Fire Fighters

    EIN 510226900 · Headquarters: Bedford, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. International Association of Fire Fighters

    EIN 510227071 · Headquarters: Southbridge, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. International Association of Fire Fighters

    EIN 510236705 · Headquarters: SOMERSET, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  34. International Association of Fire Fighters

    EIN 510509926 · Headquarters: Lenox, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  35. International Association of Fire Fighters

    EIN 651238004 · Headquarters: North Dighton, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  36. International Association of Fire Fighters

    EIN 811816774 · Headquarters: Belchertown, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. International Association of Fire Fighters

    EIN 812292981 · Headquarters: Paxton, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  38. International Association of Fire Fighters

    EIN 814825854 · Headquarters: Upton, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  39. International Association of Fire Fighters

    EIN 821248538 · Headquarters: West Barnstable, MA, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  40. International Association of Fire Fighters

    EIN 862005837 · Headquarters: Barre, MA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  41. International Association of Fire Fighters

    EIN 871438561 · Headquarters: South Hamilton, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. International Association of Fire Fighters

    EIN 900907952 · Headquarters: SOUTHWICK, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. International Association of Fire Fighters

    EIN 912004965 · Headquarters: Northborough, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  44. International Association of Fire Fighters

    EIN 932727525 · Headquarters: E LONGMEADOW, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  45. International Association of Fire Fighters

    EIN 933089385 · Headquarters: Townsend, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  46. International Association of Fire Fighters 2337 Kingston

    EIN 237453944 · Headquarters: KINGSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  47. International Association of Fire Fighters 2568 Marshfield 2568 Iaff

    EIN 510209345 · Headquarters: MARSHFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  48. International Association of Fire Fighters L1768 Plymouth

    EIN 046317959 · Headquarters: PLYMOUTH, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  49. International Association of Fire Fighters L2116 Stoneham

    EIN 237277948 · Headquarters: Stoneham, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  50. International Association of Fire Fighters Lo866 Waltham

    EIN 046143965 · Headquarters: WALTHAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  51. International Association of Fire Fighters Local 1707 - Natick

    EIN 042802081 · Headquarters: NATICK, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  52. International Association of Fire Fighters Local 2700 Norwell

    EIN 510251022 · Headquarters: NORWELL, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  53. International Association of Fire Fighters Local 4478

    EIN 203742518 · Headquarters: Medfield, MA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  54. International Association of Fire Fighters Local 853 Lowell

    EIN 046115246 · Headquarters: LOWELL, MA, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990

  55. International Association of Fire Fire Fighters

    EIN 046112061 · Headquarters: LYNN, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  56. International Association of Fire L1580 Canton

    EIN 046143977 · Headquarters: CANTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  57. International Association of Firefighter Local #2675 Orleans

    EIN 510236704 · Headquarters: ORLEANS, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  58. International Association of Firefighter Local 2122

    EIN 237277949 · Headquarters: SOUTH YARMOUTH, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  59. International Association of Firefighter Local 2583

    EIN 042634535 · Headquarters: WEST DENNIS, MA, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  60. International Association of Firefighter Local 926

    EIN 046143957 · Headquarters: REVERE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  61. International Association of Firefighters

    EIN 042643242 · Headquarters: Beverly, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  62. International Association of Firefighters

    EIN 462560900 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  63. International Association of Firefighters - Local 1491

    EIN 046143984 · Headquarters: LEXINGTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  64. International Association of Firefighters 1032 Medford

    EIN 046143947 · Headquarters: MEDFORD, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  65. International Association of Firefighters 1314 Fall River

    EIN 046069718 · Headquarters: FALL RIVER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  66. International Association of Firefighters 1347 IAFF

    EIN 046143966 · Headquarters: Watertown, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  67. International Association of Firefighters 1841 Iaff

    EIN 237080023 · Headquarters: GARDNER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  68. International Association of Firefighters L2804 Cohasset

    EIN 912005236 · Headquarters: COHASSET, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  69. International Association of Firefighters Local 1647 Tewksbury

    EIN 510227073 · Headquarters: TEWKSBURY, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  70. International Association of Firefighters Local 1795

    EIN 237023960 · Headquarters: WELLESLEY, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  71. International Association of Firefighters Local 1978

    EIN 510227074 · Headquarters: WAYLAND, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. International Association of Firefighters Local 2196 Sandwich

    EIN 042616386 · Headquarters: SANDWICH, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  73. International Association of Firefighters Local 2398 Hingham Ma

    EIN 237453947 · Headquarters: HINGHAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  74. International Association of Firefighters Local 2586

    EIN 042635751 · Headquarters: DRACUT, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  75. International Association of Firefighters Local 718 Boston

    EIN 046112075 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  76. International Association of Firefighters Local 848

    EIN 510236701 · Headquarters: ATTLEBORO, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  77. International Association of Firefighters Local 863

    EIN 042721979 · Headquarters: NEWTONVILLE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  78. International Association of Heat & Fros Insulators and Asbestos Workers Lo 6

    EIN 041472045 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  79. International Association of Lions

    EIN 046137779 · Headquarters: WALTHAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  80. International Association of Lions Club

    EIN 043115995 · Headquarters: Eastham, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  81. International Association of Lions Club

    EIN 043154139 · Headquarters: Bridgewater, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. International Association of Lions Club

    EIN 043166976 · Headquarters: Danvers, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. International Association of Lions Club

    EIN 043415968 · Headquarters: Sandwich, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  84. International Association of Lions Club

    EIN 046064710 · Headquarters: Southwick, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. International Association of Lions Club

    EIN 142013714 · Headquarters: PEABODY, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  86. International Association of Lions Club

    EIN 203771870 · Headquarters: Eastham, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  87. International Association of Lions Club

    EIN 454205813 · Headquarters: Amherst, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  88. International Association of Lions Clubs

    EIN 042688298 · Headquarters: METHUEN, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. International Association of Lions Clubs

    EIN 042746420 · Headquarters: Lynn, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  90. International Association of Lions Clubs

    EIN 042831500 · Headquarters: Sutton, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. International Association of Lions Clubs

    EIN 042930772 · Headquarters: Boylston, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  92. International Association of Lions Clubs

    EIN 042938696 · Headquarters: Woburn, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  93. International Association of Lions Clubs

    EIN 042966975 · Headquarters: Canton, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  94. International Association of Lions Clubs

    EIN 043013745 · Headquarters: DANVERS, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. International Association of Lions Clubs

    EIN 043111348 · Headquarters: Hubbardston, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  96. International Association of Lions Clubs

    EIN 043151713 · Headquarters: Fall River, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. International Association of Lions Clubs

    EIN 043173297 · Headquarters: Woburn, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  98. International Association of Lions Clubs

    EIN 043177911 · Headquarters: Concord, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. International Association of Lions Clubs

    EIN 043303450 · Headquarters: HANOVER, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  100. International Association of Lions Clubs

    EIN 043343245 · Headquarters: Charlton, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

First page and all pages