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 Association of Social Workers Inc

    EIN 910973828 · Headquarters: WASHINGTON, DC, USA · Employment · Latest available filing year: 2016 · Primary form: IRS Form 990-EZ

  2. National Association of Social Workers Iowa Chapter

    EIN 421088788 · Headquarters: WASHINGTON, DC, USA · Employment · Latest available filing year: 2016 · Primary form: IRS Form 990-EZ

  3. National Association of Social Workers Kentucky Chapter

    EIN 610919214 · Headquarters: WASHINGTON, DC, USA · Employment · Latest available filing year: 2016 · Primary form: IRS Form 990-EZ

  4. National Association of Social Workers Maryland Chapter

    EIN 520899851 · Headquarters: WASHINGTON, DC, USA · Employment · Latest available filing year: 2016 · Primary form: IRS Form 990-EZ

  5. National Association of Social Workers Massachusetts Chapter

    EIN 042205884 · Headquarters: WASHINGTON, DC, USA · Employment · Latest available filing year: 2016 · Primary form: IRS Form 990-EZ

  6. National Association of Social Workers Michigan Chapter

    EIN 382160106 · Headquarters: WASHINGTON, DC, USA · Employment · Latest available filing year: 2016 · Primary form: IRS Form 990-EZ

  7. National Association of Social Workers Mississippi Chapter

    EIN 640595803 · Headquarters: WASHINGTON, DC, USA · Employment · Latest available filing year: 2016 · Primary form: IRS Form 990-EZ

  8. National Association of Social Workers Montana Chapter

    EIN 810370923 · Headquarters: WASHINGTON, DC, USA · Employment · Latest available filing year: 2016 · Primary form: IRS Form 990-EZ

  9. National Association of Social Workers Nevada Chapter

    EIN 510218322 · Headquarters: WASHINGTON, DC, USA · Employment · Latest available filing year: 2016 · Primary form: IRS Form 990-EZ

  10. National Association of Social Workers New York State Chapter

    EIN 141592306 · Headquarters: WASHINGTON, DC, USA · Employment · Latest available filing year: 2016 · Primary form: IRS Form 990-EZ

  11. National Association of Social Workers Nj Chapter

    EIN 221624177 · Headquarters: WASHINGTON, DC, USA · Employment · Latest available filing year: 2017 · Primary form: IRS Form 990-EZ

  12. National Association of Social Workers Nyc Chapter

    EIN 135672223 · Headquarters: WASHINGTON, DC, USA · Employment · Latest available filing year: 2016 · Primary form: IRS Form 990-EZ

  13. National Association of Social Workers Ohio Chapter

    EIN 340793370 · Headquarters: WASHINGTON, DC, USA · Employment · Latest available filing year: 2016 · Primary form: IRS Form 990-EZ

  14. National Association of Social Workers Oklahoma

    EIN 731016647 · Headquarters: WASHINGTON, DC, USA · Employment · Latest available filing year: 2016 · Primary form: IRS Form 990-EZ

  15. National Association of Social Workers Pa Chapter

    EIN 231724236 · Headquarters: WASHINGTON, DC, USA · Employment · Latest available filing year: 2016 · Primary form: IRS Form 990-EZ

  16. National Association of Social Workers Puerto Rico Chapter

    EIN 660379297 · Headquarters: WASHINGTON, DC, USA · Arts, Culture & Humanities · Latest available filing year: 2016 · Primary form: IRS Form 990-EZ

  17. National Association of Social Workers Ri Chapter

    EIN 237209417 · Headquarters: WASHINGTON, DC, USA · Employment · Latest available filing year: 2016 · Primary form: IRS Form 990-EZ

  18. National Association of Social Workers Ut Chapter

    EIN 870272753 · Headquarters: WASHINGTON, DC, USA · Employment · Latest available filing year: 2016 · Primary form: IRS Form 990-EZ

  19. National Association of Social Workers Vermont Chapter

    EIN 510218385 · Headquarters: WASHINGTON, DC, USA · Employment · Latest available filing year: 2016 · Primary form: IRS Form 990-EZ

  20. National Association of Social Workers Wv Chapter 360

    EIN 510218382 · Headquarters: WASHINGTON, DC, USA · Employment · Latest available filing year: 2016 · Primary form: IRS Form 990-EZ

  21. National Association of Social Workers Wyoming Chapter

    EIN 830244905 · Headquarters: WASHINGTON, DC, USA · Employment · Latest available filing year: 2016 · Primary form: IRS Form 990-EZ

  22. National Association of Specialty Pharmacy Inc

    EIN 460917764 · Headquarters: WASHINGTON, DC, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990

  23. National Association of State Alcohol and Drug Agency Directors Inc

    EIN 520983141 · Headquarters: WASHINGTON, DC, USA · Mental Health & Crisis Intervention · Latest available filing year: 2024 · Primary form: IRS Form 990

  24. National Association of State Budget Officers

    EIN 521625594 · Headquarters: WASHINGTON, DC, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990

  25. National Association of State Directors of Migrant Education

    EIN 721366400 · Headquarters: Washington, DC, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  26. National Association of State Election Directors

    EIN 611228741 · Headquarters: Washington, DC, USA · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990

  27. National Association of State Foresters

    EIN 510141374 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  28. National Association of State Foresters Foundation

    EIN 411567714 · Headquarters: Washington, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  29. National Association of State Treasurers

    EIN 592017623 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  30. National Association of State Treasurers Foundation Inc

    EIN 611370611 · Headquarters: WASHINGTON, DC, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  31. National Association of State Workforce Agencies

    EIN 521902649 · Headquarters: Washington, DC, USA · Social Science · Latest available filing year: 2024 · Primary form: IRS Form 990

  32. National Association of Student Financial Aid Administrators

    EIN 830211970 · Headquarters: WASHINGTON, DC, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  33. National Association of Student Personnel Administrators Inc

    EIN 521542164 · Headquarters: WASHINGTON, DC, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. National Association of Theatre Owners Inc

    EIN 131580907 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  35. National Association of Towns and Townships

    EIN 522014102 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  36. National Association of Tribal Historic Officers Inc

    EIN 742893040 · Headquarters: Washington, DC, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. National Association of University Women

    EIN 237121300 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  38. National Association of University Women Group Return

    EIN 900536679 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  39. National Association of Veterans Program Administrators

    EIN 521075537 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. National Association of Veterans' Research and Education Foundations

    EIN 521784596 · Headquarters: WASHINGTON, DC, USA · Arts, Culture & Humanities · Latest available filing year: 2023 · Primary form: IRS Form 990

  41. National Association of Volunteer Programs in Local Government

    EIN 912195083 · Headquarters: Washington, DC, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  42. National Association of Waterfront Employers

    EIN 237333287 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  43. National Association of Wheat Growers

    EIN 480668648 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  44. National Association of Wheat Growers Foundation

    EIN 521096874 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  45. National Association of Wholesaler- Distributors Inc

    EIN 530188893 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  46. National Association of Women Business Owners

    EIN 237425967 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  47. National Association of Workforce Boards

    EIN 521167468 · Headquarters: WASHINGTON, DC, USA · Community Improvement & Capacity Building · Latest available filing year: 2023 · Primary form: IRS Form 990

  48. National Association of Youth-owned Businesses

    EIN 270991426 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  49. National Association to Advance Black Birth

    EIN 911837139 · Headquarters: WASHINGTON, DC, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. National Audubon Society Action Fund

    EIN 831280515 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  51. National Bankers Association

    EIN 520884907 · Headquarters: WASHINGTON, DC, USA · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  52. National Bankers Community Alliance Inc

    EIN 863843865 · Headquarters: WASHINGTON, DC, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  53. National Bar Association

    EIN 480793589 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  54. National Bar Institute

    EIN 521275633 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  55. National Barley Growers Association

    EIN 820441037 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  56. National Beauty Culturists' Le

    EIN 526056456 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  57. National Bell Festival Inc

    EIN 834301140 · Headquarters: Washington, DC, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. National Black Catholic Seminarians Association

    EIN 872918186 · Headquarters: WASHINGTON, DC, US · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  59. National Black Caucus of State Legislators

    EIN 521218832 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  60. National Black Caucus States Institute Inc

    EIN 311814443 · Headquarters: Washington, DC, US · Social Science · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  61. National Black Chamber of Commerce Inc

    EIN 351889294 · Headquarters: Washington, DC, USA · Community Improvement & Capacity Building · Latest available filing year: 2020 · Primary form: IRS Form 990

  62. National Black Child Development Institute Inc

    EIN 463645434 · Headquarters: Washington, DC, US · Medical Research · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  63. National Black Coalition of Federal Aviation Employees

    EIN 521179267 · Headquarters: WASHINGTON, DC, USA · Community Improvement & Capacity Building · Latest available filing year: 2023 · Primary form: IRS Form 990

  64. National Black Justice Collective

    EIN 922051306 · Headquarters: Washington, DC, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  65. National Black Law Students Association

    EIN 237627201 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  66. National Black Mba Association - Inc - Washington D C Chapter

    EIN 521774263 · Headquarters: WASHINGTON, DC, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  67. National Black Movie Association

    EIN 842288177 · Headquarters: Washington, DC, US · Arts, Culture & Humanities · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  68. National Black Sheriffs Association

    EIN 992623811 · Headquarters: WASHINGTON, DC, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. National Black Sisters' Conference

    EIN 251197421 · Headquarters: Washington, DC, USA · Religion Related · Latest available filing year: 2023 · Primary form: IRS Form 990

  70. National Black United Front District of Columbia Chapter

    EIN 825182875 · Headquarters: Washington, DC, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. National Breast Cancer Coalition

    EIN 232693372 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  72. National Breast Cancer Coalition Fund

    EIN 521782065 · Headquarters: WASHINGTON, DC, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. National Building Museum

    EIN 521050999 · Headquarters: WASHINGTON, DC, USA · Arts, Culture & Humanities · Latest available filing year: 2023 · Primary form: IRS Form 990

  74. National Bus Traffic Association

    EIN 361521425 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  75. National Business Aviation Association

    EIN 521633654 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  76. National Business Coalition on ECommerce and Privacy

    EIN 582533465 · Headquarters: Washington, DC, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  77. National Business Officers Association Inc

    EIN 522086855 · Headquarters: WASHINGTON, DC, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  78. National Business Travel Association Inc

    EIN 521764399 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  79. National Campaign for a Peace Tax Fund

    EIN 521039543 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  80. National Campaign to Stop Violence

    EIN 522004310 · Headquarters: Washington, DC, USA · Crime & Legal Related · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  81. National Campus Leadership Council

    EIN 461052080 · Headquarters: WASHINGTON, DC, USA · Education · Latest available filing year: 2019 · Primary form: IRS Form 990

  82. National Candle Association

    EIN 510187148 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  83. National Capital Apple Macintosh Users Group

    EIN 862755318 · Headquarters: Washington, DC, US · Recreation & Sports · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  84. National Capital Area Cares Circle of the National Care Mentoring

    EIN 271068766 · Headquarters: Washington, DC, US · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  85. National Capital Area Environmental Health Association

    EIN 800812267 · Headquarters: Washington, DC, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. National Capital Area Garden Club Inc

    EIN 526050420 · Headquarters: Washington, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. National Capital Area Paralegal Association

    EIN 521041959 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  88. National Capital Area Political Science Association

    EIN 521041766 · Headquarters: Washington, DC, US · Social Science · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  89. National Capital Cactus and Succulent Society

    EIN 521271923 · Headquarters: Washington, DC, US · Community Improvement & Capacity Building · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  90. National Capital Fencers Club

    EIN 811720763 · Headquarters: Washington, DC, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. National Capital Mikvah Inc

    EIN 510413451 · Headquarters: Washington, DC, US · Religion Related · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  92. National Capital Region Section of the American Water Resources Assc

    EIN 383786301 · Headquarters: Washington, DC, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. National Capital Region Society of Healthcare Engineers

    EIN 475421738 · Headquarters: Washington, DC, US · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  94. National Capital Squash Racquets Association Inc

    EIN 521883993 · Headquarters: Washington, DC, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  95. National Capital Texas A&m Club Endowment

    EIN 263860840 · Headquarters: Washington, DC, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. National Capitol Area Womens Paddling Association Inc

    EIN 521870408 · Headquarters: Washington, DC, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  97. National Cathedral Neighborhood Association

    EIN 522139447 · Headquarters: Washington, DC, US · Community Improvement & Capacity Building · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  98. National Cathedral of Ghana and Bible Museum Foundation

    EIN 863859197 · Headquarters: Washington, DC, USA · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  99. National Catholic Education Foundation

    EIN 862449133 · Headquarters: Washington, DC, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  100. National Catholic Prayer Breakfast

    EIN 200408543 · Headquarters: Washington, DC, United States · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990

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