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. Supreme Council of the Royal Arcanum

    EIN 222128540 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Supreme Council of the Royal Arcanum

    EIN 223198333 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Supreme Council of the Royal Arcanum

    EIN 226035517 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Supreme Council of the Royal Arcanum

    EIN 236260981 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. Supreme Council of the Royal Arcanum

    EIN 237298606 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. Supreme Council of the Royal Arcanum

    EIN 237304686 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. Supreme Council of the Royal Arcanum

    EIN 237511441 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Supreme Council of the Royal Arcanum

    EIN 237511443 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  9. Supreme Council of the Royal Arcanum

    EIN 237511462 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  10. Supreme Council of the Royal Arcanum

    EIN 237511463 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Supreme Council of the Royal Arcanum

    EIN 237511467 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Supreme Council of the Royal Arcanum

    EIN 237563488 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Supreme Council of the Royal Arcanum

    EIN 300388811 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. Supreme Council of the Royal Arcanum

    EIN 300454648 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Supreme Council of the Royal Arcanum

    EIN 320217056 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  16. Supreme Council of the Royal Arcanum

    EIN 320239947 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. Supreme Council of the Royal Arcanum

    EIN 320244880 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. Supreme Council of the Royal Arcanum

    EIN 341368605 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. Supreme Council of the Royal Arcanum

    EIN 352312255 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Supreme Council of the Royal Arcanum

    EIN 364593921 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Supreme Council of the Royal Arcanum

    EIN 364673846 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. Supreme Council of the Royal Arcanum

    EIN 364846536 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Supreme Council of the Royal Arcanum

    EIN 371564920 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Supreme Council of the Royal Arcanum

    EIN 371564921 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. Supreme Council of the Royal Arcanum

    EIN 382328943 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  26. Supreme Council of the Royal Arcanum

    EIN 431648956 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Supreme Council of the Royal Arcanum

    EIN 510633728 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. Supreme Council of the Royal Arcanum

    EIN 510645265 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Supreme Council of the Royal Arcanum

    EIN 510645519 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Supreme Council of the Royal Arcanum

    EIN 510645740 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  31. Supreme Council of the Royal Arcanum

    EIN 510645744 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. Supreme Council of the Royal Arcanum

    EIN 510647144 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Supreme Council of the Royal Arcanum

    EIN 510670882 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. Supreme Council of the Royal Arcanum

    EIN 561166260 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. Supreme Council of the Royal Arcanum

    EIN 562675798 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. Supreme Council of the Royal Arcanum

    EIN 562675830 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. Supreme Council of the Royal Arcanum

    EIN 611538443 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  38. Supreme Council of the Royal Arcanum

    EIN 611548652 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. Supreme Council of the Royal Arcanum

    EIN 651307853 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. Supreme Council of the Royal Arcanum

    EIN 651316745 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Supreme Council of the Royal Arcanum

    EIN 651318181 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Supreme Council of the Royal Arcanum

    EIN 753256407 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  43. Supreme Council of the Royal Arcanum

    EIN 760845648 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. Supreme Council of the Royal Arcanum

    EIN 900047968 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Supreme Council of the Royal Arcanum

    EIN 900107972 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. Supreme Council of the Royal Arcanum

    EIN 942774182 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. Supreme Council of the Royal Arcanum

    EIN 942774187 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. Supreme Council, AASR, NMJ, USA

    EIN 160611675 · Headquarters: Lexington, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  49. Supreme Emblem Club of the United States of America 98

    EIN 046167856 · Headquarters: MIDDLEBORO, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. Supreme Emblem Club of the United States of America Inc

    EIN 042862118 · Headquarters: GREENFIELD, MA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  51. Supreme Emblem Club of the United States of America Inc

    EIN 046167841 · Headquarters: FRAMINGHAM, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. Supreme Emblem Club of the United States of America Inc

    EIN 046167854 · Headquarters: MELROSE, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. Supreme Emblem Club of the United States of America Inc

    EIN 046167860 · Headquarters: HUDSON, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Supreme Emblem Club of the United States of America Inc

    EIN 046167880 · Headquarters: AUBURN, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  55. Supreme Emblem Club of the United States of America Inc

    EIN 222563129 · Headquarters: GLOUCESTER, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. Supreme Emblem Club of the United States of America Inc

    EIN 223162489 · Headquarters: WINTHROP, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Supreme Emblem Club of the United States of America Inc

    EIN 237069652 · Headquarters: FALMOUTH, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Supreme Emblem Club of the United States of America Inc

    EIN 942574305 · Headquarters: BILLERICA, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Supreme Emblem Club of the USA 129 Webster

    EIN 046130521 · Headquarters: STURBRIDGE, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. Supreme Temple Daughters of the Nile

    EIN 941268085 · Headquarters: CHICOPEE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  61. Survival Education Fund Inc

    EIN 042633748 · Headquarters: WATERTOWN, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  62. Survivors Inc

    EIN 042999852 · Headquarters: Lexington, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  63. Sustainability for Africas Resettlement Communities

    EIN 451955652 · Headquarters: Belmont, MA, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  64. Sustainable Scalloping Fund Corp

    EIN 991811654 · Headquarters: NEW BEDFORD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  65. Sustainable Scituate a Chapter of Sustainable Ss

    EIN 800251158 · Headquarters: Scituate, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Sutherland Pipe Band

    EIN 222667257 · Headquarters: Medway, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  67. Sutton Little League Inc

    EIN 844741686 · Headquarters: SUTTON, MA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  68. Sutton Soccer Club Inc

    EIN 042622691 · Headquarters: WORCESTER, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Sutton Youth Softball Inc

    EIN 934692333 · Headquarters: Sutton, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Suvcw Sons of Veterans Reserve

    EIN 332039655 · Headquarters: BELCHERTOWN, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. Suzuki Association of Massachusetts

    EIN 042897922 · Headquarters: Waban, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  72. Suzuki Institute of Boston

    EIN 042863873 · Headquarters: WEST ROXBURY, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  73. Suzuki School of Newton Inc

    EIN 043172689 · Headquarters: WABAN, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  74. Swampscott Arts Association Inc

    EIN 237290752 · Headquarters: Swampscott, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  75. Swampscott Club

    EIN 046112610 · Headquarters: Swampscott, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. Swampscott Education Foundation Inc

    EIN 043062500 · Headquarters: SWAMPSCOTT, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  77. Swansea Community Musicians Inc

    EIN 043031912 · Headquarters: Swansea, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  78. Swansea Police Association

    EIN 237125140 · Headquarters: SWANSEA, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  79. Swasey Fund Inc

    EIN 046051742 · Headquarters: Newburyport, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  80. Swedish Cemetery Corporation

    EIN 041887680 · Headquarters: WORCESTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  81. Swedish Social Club of Gardner Mass

    EIN 046185292 · Headquarters: Westminster, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Sweet Adelines International

    EIN 042802503 · Headquarters: Easthampton, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Sweet Adelines International

    EIN 237032107 · Headquarters: Lanesborough, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. Sweet Adelines International

    EIN 521438725 · Headquarters: Hyannis Port, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Sweet Adelines International

    EIN 521641139 · Headquarters: Plainville, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. Sweet Sadies Difference Makers

    EIN 862617760 · Headquarters: Burlington, MA, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-PF

  87. Swift Charity

    EIN 046052150 · Headquarters: Milton, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  88. Swift River Conservation Effort Inc

    EIN 933519029 · Headquarters: Indian Orchard, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  89. Swift River Valley Historical Society Inc

    EIN 042401354 · Headquarters: New Salem, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. Swim with a Special Child

    EIN 046360763 · Headquarters: Scituate, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. Swiss Society of Boston

    EIN 237398486 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Sydney & Phyllis Wragge Foundation

    EIN 136272106 · Headquarters: SHERBORN, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  93. Sydney University Graduates Union North America

    EIN 931069358 · Headquarters: Arlington, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  94. Sylvania Employees Association

    EIN 046114559 · Headquarters: PEABODY, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  95. Sylvia's Haven Inc

    EIN 042959252 · Headquarters: WINCHESTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  96. Symphony Road Community Garden

    EIN 471756183 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  97. Synthesis Center Inc

    EIN 042621726 · Headquarters: Amherst, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  98. T a Public Safety Com Fitchburg

    EIN 046023450 · Headquarters: WAKEFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  99. T S K K Inc

    EIN 043239762 · Headquarters: WEBSTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  100. T W Josephine K Funkhouser

    EIN 616082080 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

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