Unknown & Unclassified nonprofits in Maryland

Unknown & Unclassified nonprofits in Maryland. Browse 10,672 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. National Society of the Children of the American Revolution

    EIN 770720827 · Headquarters: Towson, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. National Society of the Daughters of the American Revolution

    EIN 237024317 · Headquarters: Upper Marlboro, MD, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  3. National Society of the Daughters of the American Revolution

    EIN 237024474 · Headquarters: Crofton, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. National Society of the Daughters of the American Revolution

    EIN 237027501 · Headquarters: Chevy Chase, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. National Society of the Daughters of the American Revolution

    EIN 237027508 · Headquarters: Pittsville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. National Society of the Daughters of the American Revolution

    EIN 237029765 · Headquarters: Dundalk, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. National Society of the Daughters of the American Revolution

    EIN 237032987 · Headquarters: Oxon Hill, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. National Society of the Daughters of the American Revolution

    EIN 237122272 · Headquarters: Hagerstown, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. National Society of the Daughters of the American Revolution

    EIN 237381578 · Headquarters: Potomac, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. National Society of the Daughters of the American Revolution

    EIN 271693493 · Headquarters: Laurel, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  11. National Society of the Daughters of the American Revolution

    EIN 300470638 · Headquarters: Street, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. National Society of the Daughters of the American Revolution

    EIN 516018024 · Headquarters: Elkton, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. National Society of the Daughters of the American Revolution

    EIN 521089334 · Headquarters: Frederick, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. National Society of the Daughters of the American Revolution

    EIN 521528791 · Headquarters: Waldorf, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. National Society of the Daughters of the American Revolution

    EIN 521766459 · Headquarters: Rockville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. National Society of the Daughters of the American Revolution

    EIN 521891886 · Headquarters: Germantown, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. National Society of the Daughters of the American Revolution

    EIN 522281074 · Headquarters: Westminster, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  18. National Society of the Daughters of the American Revolution

    EIN 522354619 · Headquarters: Silver Spring, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. National Society of the Daughters of the American Revolution

    EIN 526035020 · Headquarters: Crownsville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. National Society of the Daughters of the American Revolution

    EIN 526040242 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  21. National Society of the Daughters of the American Revolution

    EIN 526041218 · Headquarters: Oxford, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. National Society of the Daughters of the American Revolution

    EIN 526044506 · Headquarters: Lexington Park, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. National Society of the Daughters of the American Revolution

    EIN 526045980 · Headquarters: Gaithersburg, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. National Society of the Daughters of the American Revolution

    EIN 526048447 · Headquarters: DUNKIRK, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. National Society of the Daughters of the American Revolution

    EIN 526048507 · Headquarters: Frostburg, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. National Society of the Daughters of the American Revolution

    EIN 526048560 · Headquarters: Kensington, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. National Society of the Daughters of the American Revolution

    EIN 526050987 · Headquarters: Forest Hill, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. National Society of the Daughters of the American Revolution

    EIN 526054334 · Headquarters: Knoxville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. National Society of the Daughters of the American Revolution

    EIN 526054392 · Headquarters: Upper Marlboro, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. National Society of the Daughters of the American Revolution

    EIN 526054394 · Headquarters: Salisbury, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. National Society of the Daughters of the American Revolution

    EIN 526054399 · Headquarters: Catonsville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. National Society of the Daughters of the American Revolution

    EIN 526054400 · Headquarters: Salisbury, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. National Society of the Daughters of the American Revolution

    EIN 526054401 · Headquarters: Annapolis, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. National Society of the Daughters of the American Revolution

    EIN 526054405 · Headquarters: fort george g meade, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. National Society of the Daughters of the American Revolution

    EIN 526054411 · Headquarters: MOUNT AIRY, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. National Society of the Daughters of the American Revolution

    EIN 526054413 · Headquarters: Darlington, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. National Society of the Daughters of the American Revolution

    EIN 526054884 · Headquarters: Reisterstown, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. National Society of the Daughters of the American Revolution

    EIN 526055501 · Headquarters: Silver Spring, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  39. National Society of the Daughters of the American Revolution

    EIN 526055502 · Headquarters: Potomac, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. National Society of the Daughters of the American Revolution

    EIN 526055503 · Headquarters: Bethesda, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. National Society of the Daughters of the American Revolution

    EIN 526055504 · Headquarters: Silver Spring, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. National Society of the Daughters of the American Revolution

    EIN 526056400 · Headquarters: New Market, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. National Society of the Daughters of the American Revolution

    EIN 526059560 · Headquarters: Severn, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. National Society of the Daughters of the American Revolution

    EIN 526066008 · Headquarters: Woodbine, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. National Society of the Daughters of the American Revolution

    EIN 526066010 · Headquarters: Buckeystown, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. National Society of the Daughters of the American Revolution

    EIN 526066730 · Headquarters: Owings, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. National Society of the Daughters of the American Revolution

    EIN 526067580 · Headquarters: St Michaels, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. National Society of the Daughters of the American Revolution

    EIN 526077053 · Headquarters: Rockville, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  49. National Society of the Daughters of the American Revolution

    EIN 546052294 · Headquarters: Upper Marlboro, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. National Society of the Daughters of the American Revolution

    EIN 546052879 · Headquarters: Upper Marlboro, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. National Society of the Daughters of the American Revolution

    EIN 814886006 · Headquarters: East New Market, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. National Society of the Sons of the American Revolution

    EIN 237366887 · Headquarters: Towson, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. National Society of the Sons of the American Revolution

    EIN 311226851 · Headquarters: Elkton, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. National Society of the Sons of the American Revolution

    EIN 311226853 · Headquarters: Nottingham, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. National Society of the Sons of the American Revolution

    EIN 311458037 · Headquarters: WOODSTOCK, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. National Society of the Sons of the American Revolution

    EIN 521305253 · Headquarters: Upper Marlboro, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. National Society of the Sons of the American Revolution

    EIN 521315155 · Headquarters: HAGERSTOWN, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. National Society of the Sons of the American Revolution

    EIN 521316304 · Headquarters: Salisbury, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. National Society of the Sons of the American Revolution

    EIN 521427705 · Headquarters: Laurel, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. National Society of the Sons of the American Revolution

    EIN 521655778 · Headquarters: Poolesville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. National Society of the Sons of the American Revolution

    EIN 521679601 · Headquarters: CENTREVILLE, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  62. National Society of the Sons of the American Revolution

    EIN 521858591 · Headquarters: Callaway, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. National Society of the Sons of the American Revolution

    EIN 522342056 · Headquarters: Frostburg, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. National Society of the Sons of the American Revolution

    EIN 526056547 · Headquarters: Thurmont, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. National Society of Tole and Decorative Painters Inc

    EIN 521677753 · Headquarters: Ellicott City, MD, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  66. National Society of Tole and Decorative Painters Inc

    EIN 521929982 · Headquarters: Charlotte Hall, MD, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  67. National Society Sons & Daughters of the Pilgrims

    EIN 061044006 · Headquarters: Pasadena, MD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  68. National Society Sons & Daughters of the Pilgrims

    EIN 541086294 · Headquarters: Upper Marlboro, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. National Society United States Daughters of 1812

    EIN 021623636 · Headquarters: Ellicott City, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. National Society United States Daughters of 1812

    EIN 237120745 · Headquarters: Bel Air, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. National Society United States Daughters of 1812

    EIN 464705196 · Headquarters: Frederick, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. National Society United States Daughters of 1812

    EIN 521404239 · Headquarters: Bel Air, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. National Society United States Daughters of 1812

    EIN 521409970 · Headquarters: sykesville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. National Socity United States Daughters of 1812

    EIN 861401305 · Headquarters: Salisbury, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. National Sojourners Inc

    EIN 526054924 · Headquarters: ABERDEEN, MD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  76. National Sorority of Phi Delta Kappa Inc

    EIN 521061356 · Headquarters: Hanover, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  77. National Sorority of Phi Delta Kappa Inc

    EIN 521061389 · Headquarters: Salisbury, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. National Sorority of Phi Delta Kappa Inc - Gamma Chapter

    EIN 521340567 · Headquarters: GWYNN OAK, MD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  79. National Square Dance Convention

    EIN 431300332 · Headquarters: GREENBELT, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. National Steering Comm of the Assoc for the Imprvmt of Minorits in IRS

    EIN 521072846 · Headquarters: Upper Marlboro, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  81. National Student Parent Mock Election

    EIN 860578745 · Headquarters: Bethesda, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  82. National Student Speech Language Hearing Association

    EIN 520976011 · Headquarters: ROCKVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  83. National Surf Schools and Instructors Association

    EIN 203272698 · Headquarters: CHESAPEAK BCH, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. National Technical Association

    EIN 237330130 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  85. National Technical Association

    EIN 237330136 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  86. National Treasury Employee Union

    EIN 522107445 · Headquarters: Silver Spring, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  87. National Treasury Employees Union

    EIN 520734154 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  88. National Treasury Employees Union

    EIN 521126261 · Headquarters: Rockville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. National Union for Democracy in Iran Inc

    EIN 462739278 · Headquarters: POTOMAC, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. National Vulvodynia Association

    EIN 521882026 · Headquarters: Silver Springs, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. Nations Capital Model T Ford Club Inc

    EIN 521351832 · Headquarters: SYKESVILLE, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Native Peoples Wildlife Management Working Group

    EIN 521874124 · Headquarters: Bethesda, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  93. Natl Org of Black Law Enforc Exec

    EIN 521497588 · Headquarters: CAPITOL HEIGHTS, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  94. Natl Orgn for the Prof Adv of Black Chemists & Chemical Engineers

    EIN 581285586 · Headquarters: ANNAPOLIS, MD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  95. Natya Bharati Inc

    EIN 521379913 · Headquarters: Laytonsville, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  96. Nause-waiwash Band of Indians Inc

    EIN 521694220 · Headquarters: CAMBRIDGE, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. Naval Academy Golf Association

    EIN 520545280 · Headquarters: ANNAPOLIS, MD, USA · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990

  98. Naval Academy Spouses and Civilians Club

    EIN 520887125 · Headquarters: Annapolis, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Naval Research Laboratory Snow Searchers Ski Club

    EIN 010943118 · Headquarters: Highland, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  100. Navy League of the United States

    EIN 521338710 · Headquarters: Annapolis, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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