Nonprofits in Maryland

Nonprofits in Maryland. Browse 47,413 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 Rural Letter Carriers Association

    EIN 237233950 · Headquarters: Westover, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. National Rural Letter Carriers Association

    EIN 237233951 · Headquarters: Williamsport, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. National Rural Letter Carriers Association

    EIN 237233952 · Headquarters: Sudlersville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. National Rural Letter Carriers Association

    EIN 581859185 · Headquarters: Pasadena, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. National Sales Network Inc Dcbalt

    EIN 522046397 · Headquarters: Greenbelt, MD, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. National Sane-freeze Education Fund

    EIN 521120499 · Headquarters: Silver Spring, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. National School Foundation Association Inc

    EIN 203071694 · Headquarters: COCKEYSVILLE, MD, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  8. National School Public Relations Association

    EIN 526060603 · Headquarters: Derwood, MD, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  9. National School Public Relations Association

    EIN 541794524 · Headquarters: Rockville, MD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  10. National School Public Relations Association

    EIN 911904080 · Headquarters: Derwood, MD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  11. National Security Counselors Inc

    EIN 270810936 · Headquarters: Rockville, MD, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  12. National Sikh Ctr Charitable Trust

    EIN 526410942 · Headquarters: GERMANTOWN, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  13. National Society Children of the American Revolution Md

    EIN 273494600 · Headquarters: Severn, MD, US · Arts, Culture & Humanities · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  14. National Society Colonial Dames Xvii Century

    EIN 237395035 · Headquarters: Colora, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. National Society Colonial Dames Xvii Century

    EIN 237433472 · Headquarters: Silver Spring, MD, US · Arts, Culture & Humanities · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  16. National Society Colonial Dames Xvii Century

    EIN 521131816 · Headquarters: Bel Air, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. National Society Colonial Dames Xvii Century

    EIN 521446926 · Headquarters: Centreville, MD, US · Arts, Culture & Humanities · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  18. National Society Colonial Dames Xvii Century

    EIN 526080761 · Headquarters: Towson, MD, US · Arts, Culture & Humanities · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  19. National Society Colonial Daughters of the Seventeenth Century

    EIN 010952920 · Headquarters: Upper Marlboro, MD, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. National Society Dames of the Court of Honor

    EIN 521277009 · Headquarters: Derwood, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. National Society Daughters of Colonial Wars Inc

    EIN 526055259 · Headquarters: Rockville, MD, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. National Society Daughters of Founders & Patriots of America

    EIN 237584651 · Headquarters: Olney, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. National Society Daughters of Founders & Patriots of America

    EIN 237584662 · Headquarters: Gaithersburg, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  24. National Society for African American Innovators

    EIN 881769068 · Headquarters: Upper Marlboro, MD, US · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  25. National Society for Histotechnology

    EIN 521111284 · Headquarters: ELLICOTT CITY, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  26. National Society Founders of Places of Worship in America

    EIN 883620442 · Headquarters: Frederick, MD, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. National Society of Arts and Letters Washington DC Chapter

    EIN 526050053 · Headquarters: Frederick, MD, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  28. National Society of Black Engineers

    EIN 261150129 · Headquarters: Clarksburg, MD, US · Arts, Culture & Humanities · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  29. National Society of Black Engineers

    EIN 331110078 · Headquarters: Lexington Park, MD, US · Education · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  30. National Society of Black Engineers

    EIN 462063942 · Headquarters: Lexington Park, MD, US · Science & Technology · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  31. National Society of Black Engineers Baltimore Metropolitan Area Chapte

    EIN 521649130 · Headquarters: Ellicott City, MD, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  32. National Society of Colonial Dames of America in Maryland

    EIN 520607917 · Headquarters: BALTIMORE, MD, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  33. National Society of Descendants of Lords of the Maryland Manors Inc

    EIN 526073773 · Headquarters: Waldorf, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  34. National Society of Medical Scientists Inc

    EIN 521969684 · Headquarters: Bethesda, MD, US · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. National Society of Natural-born Citizens of the Unite

    EIN 453577017 · Headquarters: Nottingham, MD, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  36. National Society of New England Women

    EIN 460570089 · Headquarters: Upper Marlboro, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. National Society of Pershing Rifles Alumni Association Nspraa Inc

    EIN 204151252 · Headquarters: Mount Rainier, MD, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  38. National Society of Professional Surveyors Fdtn

    EIN 521915547 · Headquarters: FREDERICK, MD, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  39. National Society of Professional Surveyors Inc

    EIN 521730229 · Headquarters: Frederick, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. National Society of Southern Dames of America Inc

    EIN 521662317 · Headquarters: Rockville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. National Society of the Children of the American Revolution

    EIN 237248854 · Headquarters: Towson, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. National Society of the Children of the American Revolution

    EIN 262174549 · Headquarters: Towson, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. National Society of the Children of the American Revolution

    EIN 262246830 · Headquarters: Towson, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. National Society of the Children of the American Revolution

    EIN 262340446 · Headquarters: Towson, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. National Society of the Children of the American Revolution

    EIN 262821205 · Headquarters: Towson, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. National Society of the Children of the American Revolution

    EIN 743255749 · Headquarters: Towson, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  47. 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

  48. National Society of the Children of the American Revolution

    EIN 800246931 · Headquarters: Salisbury, MD, US · Arts, Culture & Humanities · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  49. National Society of the Children of the American Revolution

    EIN 900430910 · Headquarters: Towson, MD, US · Arts, Culture & Humanities · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  50. National Society of the Children of the American Revolution

    EIN 900430911 · Headquarters: Towson, MD, US · Arts, Culture & Humanities · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  51. National Society of the Children of the American Revolution

    EIN 901022892 · Headquarters: Rockville, MD, US · Arts, Culture & Humanities · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  52. National Society of the Daughters of the American Revolution

    EIN 226063105 · Headquarters: Rose Haven, MD, US · Arts, Culture & Humanities · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  53. 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

  54. 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

  55. 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

  56. 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

  57. National Society of the Daughters of the American Revolution

    EIN 237027578 · Headquarters: FREELAND, MD, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. 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

  59. 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

  60. 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

  61. 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

  62. 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

  63. 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

  64. National Society of the Daughters of the American Revolution

    EIN 510424136 · Headquarters: Timonium, MD, US · Arts, Culture & Humanities · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  65. 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

  66. 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

  67. 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

  68. 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

  69. 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

  70. 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

  71. National Society of the Daughters of the American Revolution

    EIN 522297900 · Headquarters: Baltimore, MD, US · Arts, Culture & Humanities · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  72. 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

  73. 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

  74. 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

  75. 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

  76. National Society of the Daughters of the American Revolution

    EIN 526044446 · Headquarters: Severna Park, MD, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. 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

  78. 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

  79. 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

  80. 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

  81. 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

  82. 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

  83. 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

  84. 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

  85. 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

  86. 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

  87. 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

  88. 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

  89. 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

  90. 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

  91. 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

  92. 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

  93. 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

  94. 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

  95. 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

  96. 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

  97. 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

  98. 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

  99. 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

  100. 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

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