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. American Public Transportation Foundation

    EIN 521616062 · Headquarters: WASHINGTON, DC, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  2. American Recreation Coalition

    EIN 521167602 · Headquarters: WASHINGTON, DC, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

  3. American Red Cross

    EIN 530196605 · Headquarters: Washington, DC, United States · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  4. American Reinvestment Company

    EIN 463663287 · Headquarters: WASHINGTON, DC, USA · Housing & Shelter · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  5. American Relief Coalition

    EIN 471273159 · Headquarters: WASHINGTON, DC, USA · International, Foreign Affairs & National Security · Latest available filing year: 2022 · Primary form: IRS Form 990

  6. American Research and Education Associates Inc

    EIN 264507580 · Headquarters: WASHINGTON, DC, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  7. American Research and Policy Institute

    EIN 264392206 · Headquarters: WASHINGTON, DC, USA · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  8. American Research Associates

    EIN 264737255 · Headquarters: Washington, DC, US · Community Improvement & Capacity Building · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  9. American Resort Development Association

    EIN 520895129 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  10. American Rights at Work Education Fund

    EIN 861082272 · Headquarters: Washington, DC, US · Social Science · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  11. American Rivers

    EIN 237305963 · Headquarters: Washington, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  12. American Rivers Action Fund

    EIN 990692195 · Headquarters: WASHINGTON, DC, USA · Civil Rights, Social Action & Advocacy · Latest available filing year: 2024 · Primary form: IRS Form 990

  13. American Road and Transportation Builder Assoc Transport Development Foundation

    EIN 526283894 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  14. American Road and Transportation Builders Association

    EIN 530026395 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  15. American Romanian Business Council

    EIN 454174114 · Headquarters: WASHINGTON, DC, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  16. American Rose Society

    EIN 526036049 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. American Saltwater Guides Alliance Inc

    EIN 832843826 · Headquarters: WASHINGTON, DC, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990

  18. American Seafood Association

    EIN 522241745 · Headquarters: Washington, DC, US · Community Improvement & Capacity Building · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  19. American Security Action Fund Inc

    EIN 271020929 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. American Security Foundation

    EIN 993678202 · Headquarters: WASHINGTON, DC, USA · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990

  21. American Security Fund

    EIN 301365638 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  22. American Security Project

    EIN 204079553 · Headquarters: WASHINGTON, DC, USA · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990

  23. American Seniors Housing Association Inc

    EIN 522261594 · Headquarters: WASHINGTON, DC, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990

  24. American Shipbuilding Suppliers Association

    EIN 900745635 · Headquarters: WASHINGTON, DC, US · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  25. American Shipping and Trading Association

    EIN 332065708 · Headquarters: WASHINGTON, DC, US · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. American Short Line & Regional Railroad Association

    EIN 536000080 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  27. American Small Business Institute Inc

    EIN 932197585 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  28. American Society for Bone and Mineral Research

    EIN 431123207 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  29. American Society for Engineering Education

    EIN 370730118 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  30. American Society for Microbiology

    EIN 381616141 · Headquarters: WASHINGTON, DC, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990

  31. American Society for Public Administration

    EIN 232160304 · Headquarters: WASHINGTON, DC, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. American Society for Public Administration

    EIN 261428954 · Headquarters: WASHINGTON, DC, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. American Society for Public Administration

    EIN 262202855 · Headquarters: WASHINGTON, DC, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. American Society for Public Administration

    EIN 362340300 · Headquarters: WASHINGTON, DC, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. American Society for Public Administration

    EIN 436072224 · Headquarters: Washington, DC, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  36. American Society for Public Administration

    EIN 454117697 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. American Society for Public Administration

    EIN 454820732 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  38. American Society for Public Administration

    EIN 463221646 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. American Society for Public Administration

    EIN 474066234 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. American Society for Public Administration

    EIN 474709724 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. American Society for Public Administration

    EIN 510257235 · Headquarters: WASHINGTON, DC, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  42. American Society for Public Administration

    EIN 521203979 · Headquarters: WASHINGTON, DC, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. American Society for Public Administration

    EIN 521203980 · Headquarters: WASHINGTON, DC, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. American Society for Public Administration

    EIN 521203987 · Headquarters: WASHINGTON, DC, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. American Society for Public Administration

    EIN 521203990 · Headquarters: WASHINGTON, DC, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. American Society for Public Administration

    EIN 521203992 · Headquarters: Washington, DC, US · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  47. American Society for Public Administration

    EIN 521203995 · Headquarters: WASHINGTON, DC, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. American Society for Public Administration

    EIN 521204051 · Headquarters: Washington, DC, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. American Society for Public Administration

    EIN 521204053 · Headquarters: WASHINGTON, DC, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. American Society for Public Administration

    EIN 521204060 · Headquarters: WASHINGTON, DC, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. American Society for Public Administration

    EIN 521204132 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. American Society for Public Administration

    EIN 521204138 · Headquarters: WASHINGTON, DC, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. American Society for Public Administration

    EIN 521204145 · Headquarters: WASHINGTON, DC, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. American Society for Public Administration

    EIN 521204171 · Headquarters: WASHINGTON, DC, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. American Society for Public Administration

    EIN 521204176 · Headquarters: WASHINGTON, DC, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. American Society for Public Administration

    EIN 521204194 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. American Society for Public Administration

    EIN 521204199 · Headquarters: WASHINGTON, DC, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. American Society for Public Administration

    EIN 521204205 · Headquarters: WASHINGTON, DC, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. American Society for Public Administration

    EIN 521204206 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. American Society for Public Administration

    EIN 521204213 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  61. American Society for Public Administration

    EIN 521204221 · Headquarters: WASHINGTON, DC, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. American Society for Public Administration

    EIN 521204223 · Headquarters: Washington, DC, US · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  63. American Society for Public Administration

    EIN 521204224 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. American Society for Public Administration

    EIN 521204225 · Headquarters: WASHINGTON, DC, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. American Society for Public Administration

    EIN 521204227 · Headquarters: WASHINGTON, DC, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. American Society for Public Administration

    EIN 521204228 · Headquarters: WASHINGTON, DC, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. American Society for Public Administration

    EIN 521204229 · Headquarters: Washington, DC, US · Public & Societal Benefit · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  68. American Society for Public Administration

    EIN 521204238 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  69. American Society for Public Administration

    EIN 521232639 · Headquarters: Washington, DC, US · Public & Societal Benefit · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  70. American Society for Public Administration

    EIN 521265355 · Headquarters: Washington, DC, US · Community Improvement & Capacity Building · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  71. American Society for Public Administration

    EIN 521265369 · Headquarters: Washington, DC, US · Public & Societal Benefit · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  72. American Society for Public Administration

    EIN 521265959 · Headquarters: WASHINGTON, DC, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. American Society for Public Administration

    EIN 521265960 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. American Society for Public Administration

    EIN 521272097 · Headquarters: WASHINGTON, DC, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. American Society for Public Administration

    EIN 521272110 · Headquarters: Washington, DC, US · Community Improvement & Capacity Building · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  76. American Society for Public Administration

    EIN 521272113 · Headquarters: WASHINGTON, DC, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. American Society for Public Administration

    EIN 521374959 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. American Society for Public Administration

    EIN 541908491 · Headquarters: WASHINGTON, DC, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. American Society for Public Administration

    EIN 581779206 · Headquarters: Washington, DC, US · Education · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  80. American Society for Public Administration

    EIN 626104786 · Headquarters: WASHINGTON, DC, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. American Society for Public Administration

    EIN 651282580 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. American Society for Public Administration

    EIN 813269430 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. American Society for Public Administration

    EIN 813277612 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. American Society for Public Administration

    EIN 813816612 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. American Society for Public Administration

    EIN 813827806 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. American Society for Public Administration

    EIN 815302919 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. American Society for Public Administration

    EIN 821302827 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. American Society for Public Administration

    EIN 824017576 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  89. American Society for Public Administration

    EIN 912020495 · Headquarters: WASHINGTON, DC, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. American Society for Public Administration

    EIN 912079437 · Headquarters: WASHINGTON, DC, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. American Society for Public Administration

    EIN 954407694 · Headquarters: WASHINGTON, DC, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. American Society for Public Adminstration

    EIN 464761753 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. American Society of Access Professionals Asap

    EIN 541152815 · Headquarters: Washington, DC, United States · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  94. American Society of Acupuncturists

    EIN 371788995 · Headquarters: Washington, DC, USA · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  95. American Society of Appraisers

    EIN 521344606 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  96. American Society of Association Executives

    EIN 530026940 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  97. American Society of Clinical Hypnosis

    EIN 362418823 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  98. American Society of Clinical Hypnosis - Education and Research Foundation

    EIN 362427458 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  99. American Society of Genealogists

    EIN 870665638 · Headquarters: Washington, DC, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. American Society of Hematology Inc

    EIN 237080568 · Headquarters: WASHINGTON, DC, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2024 · Primary form: IRS Form 990

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