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 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

  2. 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

  3. 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

  4. 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

  5. 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

  6. 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

  7. 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

  8. 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

  9. 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

  10. 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

  11. 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

  12. 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

  13. 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

  14. 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

  15. National Society of the Sons of the American Revolution

    EIN 521507967 · Headquarters: Gambrills, MD, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. 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

  17. 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

  18. 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

  19. 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

  20. 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

  21. National Society of Tole and Decorative Painters

    EIN 522190673 · Headquarters: ABERDEEN, MD, US · Arts, Culture & Humanities · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  22. 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

  23. 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

  24. National Society of Tole and Decorative Painters Inc

    EIN 550743212 · Headquarters: frederick, MD, US · Arts, Culture & Humanities · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  25. 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

  26. 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

  27. 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

  28. 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

  29. 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

  30. 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

  31. 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

  32. 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

  33. National Sojourners Inc

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

  34. National Sorority of Phi Delta Kappa

    EIN 884109910 · Headquarters: Bowie, MD, US · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  35. 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

  36. 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

  37. 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

  38. National Spay Neuter Now Foundation Inc

    EIN 461772487 · Headquarters: Hagerstown, MD, US · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  39. National Square Dance Convention

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

  40. National Steeplechase Association Inc

    EIN 521966554 · Headquarters: ELKTON, MD, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

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

    EIN 521064321 · Headquarters: Owings Mills, MD, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. 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

  43. National Strategy Information Center Inc

    EIN 131973342 · Headquarters: BETHESDA, MD, USA · International, Foreign Affairs & National Security · Latest available filing year: 2014 · Primary form: IRS Form 990

  44. National String Symphonia

    EIN 463314903 · Headquarters: Frederick, MD, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. National Student Athletic Society

    EIN 300316744 · Headquarters: Savage, MD, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. National Student Parent Mock Election

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

  47. National Student Speech Language Hearing Association

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

  48. National Substance Abuse Initiative Corp

    EIN 823044331 · Headquarters: POTOMAC, MD, US · Medical Research · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. 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

  50. National Taiwan Univ Alumni Assoc in the Washington-baltimore Area

    EIN 453867875 · Headquarters: Rockville, MD, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. National Taiwan Univ Alumni Association in the North America

    EIN 521720238 · Headquarters: Rockville, MD, US · Education · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  52. National Taiwan University Alumni Chorus of the District of Columbia

    EIN 264181468 · Headquarters: Rockville, MD, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  53. National Tap Ensemble

    EIN 521677044 · Headquarters: Hagerstown, MD, US · Arts, Culture & Humanities · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  54. National Technical Association

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

  55. National Technical Association

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

  56. National Technical Investigators Asso

    EIN 541511063 · Headquarters: Stevensville, MD, USA · Crime & Legal Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  57. National Thyroid Foundation

    EIN 201188194 · Headquarters: Rockville, MD, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  58. National Torah Academy Inc

    EIN 452919603 · Headquarters: Silver Spring, MD, US · Religion Related · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  59. National Tots & Teens Inc

    EIN 521526917 · Headquarters: Bowie, MD, US · Youth Development · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  60. National Trafficking Sheltered Alliance

    EIN 842962806 · Headquarters: MILLERSVILLE, MD, USA · Crime & Legal Related · Latest available filing year: 2023 · Primary form: IRS Form 990

  61. National Trans Bar Association

    EIN 831737301 · Headquarters: Takoma Park, MD, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  62. National Trauma Education and Policy Board Inc

    EIN 883484648 · Headquarters: SILVER SPRING, MD, US · Public & Societal Benefit · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  63. National Treasury Employee Union

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

  64. National Treasury Employees Union

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

  65. National Treasury Employees Union

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

  66. National Treasury Employees Union

    EIN 521243321 · Headquarters: Hyattsville, MD, US · Employment · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  67. National Treasury Employees Union

    EIN 521363711 · Headquarters: GERMANTOWN, MD, US · Employment · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  68. National Treasury Employees Union

    EIN 522155199 · Headquarters: Rockville, MD, US · Employment · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  69. National Triplet Convention Inc

    EIN 383893074 · Headquarters: Silver Spring, MD, US · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  70. National Trust for Our Wounded Inc

    EIN 453092462 · Headquarters: BETHESDA, MD, USA · Public & Societal Benefit · Latest available filing year: 2016 · Primary form: IRS Form 990

  71. National Tsing Hua University Alumni Association of Washington D

    EIN 843767531 · Headquarters: Rockville, MD, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. National Tuberous Sclerosis Association

    EIN 953018799 · Headquarters: SILVER SPRING, MD, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2025 · Primary form: IRS Form 990

  73. National Turfgrass Evaluation Program Inc

    EIN 521744502 · Headquarters: BELTSVILLE, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  74. National Turfgrass Federation Inc

    EIN 320218619 · Headquarters: BELTSVILLE, MD, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  75. National Twinks Social and Civic Club Inc

    EIN 912124713 · Headquarters: Pikesville, MD, US · Community Improvement & Capacity Building · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  76. 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

  77. National Veteran Hunters Associatio N Inc

    EIN 393978913 · Headquarters: Leonardtown, MD, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. National Veterans Association Business Forum

    EIN 463963865 · Headquarters: Upper Marlboro, MD, US · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  79. National Veterans Association Business Foundation

    EIN 474039207 · Headquarters: Upper Marlboro, MD, US · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  80. National Volunteer Fire Council Foundation

    EIN 521624664 · Headquarters: GREENBELT, MD, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ

  81. National Vulvodynia Association

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

  82. National Womens Collaborative Foundation Inc

    EIN 933921102 · Headquarters: bowie, MD, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. National Womens Prison Project Inc

    EIN 371458845 · Headquarters: Baltimore, MD, USA · Crime & Legal Related · Latest available filing year: 2011 · Primary form: IRS Form 990-EZ

  84. National Womens Studies Association Inc

    EIN 741971364 · Headquarters: Baltimore, MD, USA · Social Science · Latest available filing year: 2024 · Primary form: IRS Form 990

  85. National Youth Rights Association

    EIN 571129149 · Headquarters: Hyattsville, MD, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  86. Nationhouse Positive Action Center the Collective Incorporated

    EIN 853243896 · Headquarters: Hyattsville, MD, US · Public & Societal Benefit · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  87. Nations Capital - Southern Maryland Area Local 140 - Apwu

    EIN 520945532 · Headquarters: Upper Marlboro, MD, USA · Employment · Latest available filing year: 2023 · Primary form: IRS Form 990

  88. 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

  89. Nations Capitol Bass Federation

    EIN 300029719 · Headquarters: Bryansroad, MD, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  90. Nationwide Retirees Association

    EIN 521127289 · Headquarters: Crofton, MD, US · Human Services · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  91. Native American Aviation Association Ltd

    EIN 331968132 · Headquarters: Columbia, MD, US · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Native American Lifelines Inc

    EIN 522225714 · Headquarters: COCKEYSVILLE, MD, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  93. Native Footprint Inc

    EIN 823342734 · Headquarters: Sparks Glencoe, MD, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  94. Native Grassland Conservancy Inc

    EIN 260593495 · Headquarters: Upper Marlboro, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. 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

  96. Native Washingtonian Club Inc

    EIN 521817567 · Headquarters: BALTIMORE CITY, MD, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  97. Natl Assoc of Nigerian NP USA-DMV-Inc

    EIN 823324747 · Headquarters: Silver Spring, MD, USA · Education · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  98. Natl Coalition for Health Professional

    EIN 522290107 · Headquarters: Lutherville, MD, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2011 · Primary form: IRS Form 990

  99. Natl Historically Black Colleges & Universities Alumni Assoc Foundati

    EIN 812540752 · Headquarters: Silver Spring, MD, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. Natl Jt Tst to Promote Training in the Cement & Asphalt Composition Trds (Iac)

    EIN 521280934 · Headquarters: COLUMBIA, MD, US · Arts, Culture & Humanities · Latest available filing year: 2019 · Primary form: IRS Form 990-N

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