Nonprofits in Washington, District of Columbia

Nonprofits in Washington, District of Columbia. Browse 18,177 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 526054415 · Headquarters: Washington, DC, 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 526054416 · Headquarters: Washington, DC, 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 526054438 · Headquarters: Washington, DC, 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 541053007 · Headquarters: Washington, DC, 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 546052473 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  6. National Society of the Daughters of the American Revolution

    EIN 566060603 · Headquarters: Washington, DC, 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 566061300 · Headquarters: Washington, DC, 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 581712902 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  9. National Society of the Daughters of the American Revolution

    EIN 743041704 · Headquarters: Washington, DC, US · Arts, Culture & Humanities · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  10. National Society of the Daughters of the American Revolution

    EIN 931331215 · Headquarters: Washington, DC, US · Arts, Culture & Humanities · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  11. National Society of the Daughters of the Barons of Runnemede Inc

    EIN 546045225 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. National Society of the Sons of the American Revolution - Dc Society

    EIN 530237718 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  13. National Society United States Daughters of 1812

    EIN 010819839 · Headquarters: Washington, DC, US · Arts, Culture & Humanities · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  14. National Society United States Daughters of 1812

    EIN 200600324 · Headquarters: Washington, DC, US · Arts, Culture & Humanities · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  15. National Society United States Daughters of 1812

    EIN 352521641 · Headquarters: Washington, DC, US · Arts, Culture & Humanities · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  16. National Society United States Daughters of 1812

    EIN 510183242 · Headquarters: Washington, DC, US · Arts, Culture & Humanities · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  17. National Society United States Daughters of 1812

    EIN 510213307 · Headquarters: Washington, DC, US · Arts, Culture & Humanities · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  18. National Society United States Daughters of 1812

    EIN 530116360 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  19. National Society United States Daughters of 1812

    EIN 640712912 · Headquarters: Washington, DC, US · Arts, Culture & Humanities · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  20. National Society United States Daughters of 1812

    EIN 920168855 · Headquarters: Washington, DC, US · Arts, Culture & Humanities · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  21. National Sorority of Phi Delta Kappa Inc

    EIN 521061357 · Headquarters: WASHINGTON, DC, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  22. National Space Club

    EIN 520789500 · Headquarters: WASHINGTON, DC, USA · Recreation & Sports · Latest available filing year: 2016 · Primary form: IRS Form 990-EZ

  23. National Space Society

    EIN 237417411 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  24. National Special Districts Association

    EIN 332638989 · Headquarters: WASHINGTON, DC, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990

  25. National Spectrum Consortium

    EIN 881444289 · Headquarters: WASHINGTON, DC, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990

  26. National Star Route Contractors Group

    EIN 237063747 · Headquarters: WASHINGTON, DC, USA · Science & Technology · Latest available filing year: 2019 · Primary form: IRS Form 990

  27. National Structured Settlements Trade Association

    EIN 954020047 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  28. National Student Achievement Awards

    EIN 522044109 · Headquarters: WASHINGTON, DC, USA · Education · Latest available filing year: 2022 · Primary form: IRS Form 990-PF

  29. National Student Legal Defense Network

    EIN 823474942 · Headquarters: WASHINGTON, DC, USA · Civil Rights, Social Action & Advocacy · Latest available filing year: 2024 · Primary form: IRS Form 990

  30. National Summer Learning Association Inc

    EIN 263356271 · Headquarters: WASHINGTON, DC, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  31. National Summit on Africa

    EIN 522018801 · Headquarters: WASHINGTON, DC, USA · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  32. National Surgical Assistant Association

    EIN 541123342 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  33. National Sustainable Agriculture Coalition

    EIN 334933815 · Headquarters: Washington, DC, US · Food, Agriculture & Nutrition · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. National Symphony Orch Assn of Washington Dc

    EIN 530208364 · Headquarters: WASHINGTON, DC, USA · Arts, Culture & Humanities · Latest available filing year: 2023 · Primary form: IRS Form 990

  35. National Symphony Orchestra Musicians Society

    EIN 454785524 · Headquarters: Washington, DC, US · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  36. National Taxpayers Union

    EIN 521009116 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. National Taxpayers Union Foundation

    EIN 521122683 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  38. National Tbi Traumatic Brain Injury Registry Coalition

    EIN 872947772 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  39. National Teacher Assistance Organization

    EIN 273281010 · Headquarters: Washington, DC, US · Education · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  40. National Technical Association

    EIN 510144210 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  41. National Technical Association Inc

    EIN 800544813 · Headquarters: WASHINGTON, DC, US · Community Improvement & Capacity Building · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  42. National Theatre of the Deaf Inc

    EIN 061051786 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  43. National Theatre Workshop of the Handicapped Inc

    EIN 133014559 · Headquarters: Washington, DC, USA · Arts, Culture & Humanities · Latest available filing year: 2019 · Primary form: IRS Form 990

  44. National Timber Harvesting & Transportation Safety Foundation

    EIN 521786444 · Headquarters: Washington, DC, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  45. National Treasury Employee Union Chapter 346

    EIN 612245246 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. National Treasury Employees Union

    EIN 222611047 · Headquarters: Washington, DC, US · Employment · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  47. National Treasury Employees Union

    EIN 237372529 · Headquarters: Washington, DC, US · Employment · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  48. National Treasury Employees Union

    EIN 237383295 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  49. National Treasury Employees Union

    EIN 331037966 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  50. National Treasury Employees Union

    EIN 371755148 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. National Treasury Employees Union

    EIN 510178157 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  52. National Treasury Employees Union

    EIN 521063245 · Headquarters: Washington, DC, US · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  53. National Treasury Employees Union

    EIN 521328899 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  54. National Treasury Employees Union

    EIN 521493233 · Headquarters: WASHINGTON, DC, US · Employment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  55. National Treasury Employees Union

    EIN 521516013 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  56. National Treasury Employees Union

    EIN 522267542 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  57. National Treasury Employees Union

    EIN 530244795 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  58. National Treasury Employees Union

    EIN 870619253 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  59. National Treasury Employees Union

    EIN 911883325 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  60. National Treasury Employees Union

    EIN 911963005 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  61. National Treasury Employees Union Chapter 335

    EIN 463023637 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  62. National Treasury Employees Union Chapter 344

    EIN 331679307 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  63. National Treasury Employees Union Chapter 345

    EIN 320800128 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. National Treasury Employees Union Chapter 65

    EIN 526056488 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  65. National Treasury Employees Union Chapter No 343

    EIN 933150572 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  66. National Trust for Historic Preservation

    EIN 530210807 · Headquarters: Washington, DC, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  67. National Turkey Federation Foundation

    EIN 811823264 · Headquarters: WASHINGTON, DC, USA · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  68. National Turkey Federation Inc

    EIN 362033000 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  69. National US-Arab Chamber of Commercenon

    EIN 521529937 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  70. National Utility Contractors Association -Washington DC Chapter

    EIN 454687582 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  71. National Utility Industry Training Fund

    EIN 263189488 · Headquarters: WASHINGTON, DC, USA · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990

  72. National Valet Parking Association Inc

    EIN 061699614 · Headquarters: WASHINGTON, DC, USA · Community Improvement & Capacity Building · Latest available filing year: 2012 · Primary form: IRS Form 990-EZ

  73. National Venture Capital Association

    EIN 521296842 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  74. National Veteran Small Business Coalition

    EIN 272901001 · Headquarters: WASHINGTON, DC, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  75. National Veterans Parade Foundation

    EIN 922400150 · Headquarters: Washington, DC, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  76. National Volunteer Fire Council Inc

    EIN 391274172 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  77. National Vote At Home Coalition

    EIN 822944257 · Headquarters: Washington, DC, USA · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  78. National Vote At Home Institute

    EIN 825515680 · Headquarters: Washington, DC, USA · Civil Rights, Social Action & Advocacy · Latest available filing year: 2025 · Primary form: IRS Form 990

  79. National War College Women S Club

    EIN 521480553 · Headquarters: Washington, DC, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  80. National Water Resources Association

    EIN 530116060 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  81. National Waterways Foundation

    EIN 521124026 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  82. National Weather Service Employees Organization

    EIN 541018164 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  83. National Whistleblower Center

    EIN 521770068 · Headquarters: WASHINGTON, DC, USA · Civil Rights, Social Action & Advocacy · Latest available filing year: 2024 · Primary form: IRS Form 990

  84. National Wic Association

    EIN 521482678 · Headquarters: WASHINGTON, DC, USA · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  85. National Wildlife Federation Action Fund

    EIN 742556532 · Headquarters: Washington, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  86. National Wildlife Refuge Association

    EIN 237447365 · Headquarters: WASHINGTON, DC, USA · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. National Womans Party

    EIN 530116540 · Headquarters: Washington, DC, USA · Public & Societal Benefit · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  88. National Women's Foundation

    EIN 521743808 · Headquarters: WASHINGTON, DC, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  89. National Women's Health Network

    EIN 521081261 · Headquarters: Washington, DC, USA · Health Care · Latest available filing year: 2023 · Primary form: IRS Form 990

  90. National Women's History Museum

    EIN 541801426 · Headquarters: WASHINGTON, DC, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990

  91. National Women's Law Center

    EIN 521213010 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. National Women's Law Center Action Fund

    EIN 460639645 · Headquarters: WASHINGTON, DC, USA · Civil Rights, Social Action & Advocacy · Latest available filing year: 2024 · Primary form: IRS Form 990

  93. National Womens Education Fund

    EIN 237245401 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  94. National Womens Political Cauc

    EIN 520941218 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  95. National Workforce Registry Alliance Inc

    EIN 271073451 · Headquarters: Washington, DC, USA · Human Services · Latest available filing year: 2023 · Primary form: IRS Form 990

  96. National Youth Employment Coalition Inc

    EIN 133031098 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  97. National Youth Justice Alliance

    EIN 208673659 · Headquarters: Washington, DC, US · Youth Development · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  98. National Youth Justice Network

    EIN 813221807 · Headquarters: WASHINGTON, DC, USA · Civil Rights, Social Action & Advocacy · Latest available filing year: 2024 · Primary form: IRS Form 990

  99. National-stansbury-dawson Lodge #12

    EIN 530070155 · Headquarters: WASHINGTON, DC, USA · Mutual & Membership Benefit · Latest available filing year: 2022 · Primary form: IRS Form 990

  100. Nations Capital Bicentennial Celebration

    EIN 522025087 · Headquarters: Washington, DC, US · Arts, Culture & Humanities · Latest available filing year: 2007 · Primary form: IRS Form 990-N

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