Unknown & Unclassified nonprofits in District of Columbia

Unknown & Unclassified nonprofits in District of Columbia. Browse 4,522 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. 011 National Capital Chapter of Trout Unlimited

    EIN 237188799 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. 1000 Feet Dc Inc

    EIN 993271407 · Headquarters: Washington DC, DC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  3. 116 INC

    EIN 520742077 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  4. 1818 Society Iran Chapter

    EIN 842823161 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. 1992 Benefit Plan Retiree Health Benefit Reserve Trust

    EIN 223462890 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  6. 2017 Project

    EIN 462489767 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990

  7. 21H Association

    EIN 462754582 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  8. 21St Century Policy Institute

    EIN 921634770 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  9. 224 Club

    EIN 932338532 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  10. 226 Educational Programs

    EIN 832458478 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  11. 3201 Wisconsin Ave Tenants Association

    EIN 332410357 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  12. 50 States Action Fund Inc

    EIN 833398524 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. 555 New Jersey Avenue Nw Inc

    EIN 521797147 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  14. 579Th Medical Group Booster Club

    EIN 270513197 · Headquarters: Bolling AFB, DC, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  15. A Better Rome

    EIN 932084302 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  16. A New and Better Time

    EIN 462532773 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  17. A Philip Randolph Institute

    EIN 132548181 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  18. A Salon LTD

    EIN 521176436 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  19. Aaa Foundation for Traffic Safety

    EIN 520794368 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  20. Aaj Class Action Litigation Group

    EIN 464518427 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  21. Aaj Nursing Home Litigation Group

    EIN 464566164 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  22. AAP Education and Research Institute

    EIN 510189369 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  23. Aar-nrlc Group Insurance Trust

    EIN 521161363 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  24. AARP - Chapters Group Return

    EIN 237377940 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  25. Aarq Trust

    EIN 516518581 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  26. Aauw Action Fund Inc

    EIN 530025390 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  27. Aba Securities Association

    EIN 521935145 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  28. Aba Veba

    EIN 521767808 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  29. Abel Desalegn Foundation

    EIN 473471635 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  30. Abraham and Laura Lisner Home for Aged Women

    EIN 530228120 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  31. Academy of Certified Archivists

    EIN 311284827 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  32. Academy of Hope Adult Public Charter School

    EIN 521730021 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  33. Academyhealth

    EIN 521260918 · Headquarters: WASHINTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. Access Democracy

    EIN 821888217 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  35. Accord Network

    EIN 521130135 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  36. Accountable America Inc

    EIN 263077660 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  37. Accrediting Council for Continuing Education and Training Inc

    EIN 540975037 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  38. Acec Research Institute

    EIN 521140340 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  39. Acetophenone Task Force

    EIN 800012444 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  40. Acharya Devnandi Foundation

    EIN 612100985 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  41. Acharya Devnandi University

    EIN 301329624 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  42. Acog Landholding Corporation

    EIN 521639668 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. ACPA–College Student Educators International

    EIN 521170366 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  44. Acronym

    EIN 821630469 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990

  45. Act for Nih

    EIN 465621279 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  46. Action Network

    EIN 461832144 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  47. Action on Smoking and Health

    EIN 132603590 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  48. Adc Research Institute

    EIN 521252206 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  49. AdvaMed

    EIN 521006053 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. Advanced Materials Security Council

    EIN 394582640 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. Advocacy for Excellence

    EIN 851779626 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  52. Advocate for America

    EIN 992914121 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  53. Advocates for Highway and Auto Safety

    EIN 521648962 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  54. Advocates for Justice and Education

    EIN 521989809 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  55. Advocates for Youth

    EIN 521173590 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  56. Aemp Education Foundation

    EIN 752699859 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Aero Club of Washington Dc

    EIN 526054159 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  58. Aet Library Endowment

    EIN 521460362 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  59. Afa Solidarity Fund

    EIN 990516403 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. Affordable Broadband Campaign

    EIN 991237173 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  61. Affordable Energy Future

    EIN 872154186 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  62. Affordable Food for All

    EIN 861541929 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  63. Affordable Housing Tax Credit Coalition

    EIN 521564149 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  64. Afge Gpo Local 2876

    EIN 986005104 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  65. Afge Local 2741

    EIN 986005124 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  66. Afl-cio

    EIN 530228172 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  67. Afl-cio Union Lawyers Alliance

    EIN 521304063 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  68. Africa Investment Network

    EIN 331776369 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. African Cultural and Religious Society of Washington Dc

    EIN 237249212 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  70. African Development Group Inc

    EIN 990370209 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  71. African-American Civil War Memorial Freedom Foundation

    EIN 521785797 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  72. Afro American Historical & Genealogical Society Inc

    EIN 521238303 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  73. Afro-american Historical and Genealogical Society

    EIN 521745710 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. Afscme Building Corporation

    EIN 521010116 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. AFT: Education, Healthcare, Public Services

    EIN 360725240 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  76. Agencyact Inc

    EIN 992569881 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Aglow International

    EIN 237409843 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. Ahepa Freedom 42

    EIN 413689051 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Ai Progress Inc

    EIN 372146704 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  80. Aid Association for the Blind of the District of Columbia C/o

    EIN 530196564 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  81. Aikido Shobukan Dojo

    EIN 521728438 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  82. Air Line Pilots Association, International

    EIN 360710830 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  83. Air Medical Consumer Protections Alliance

    EIN 872889710 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  84. Airforwarders Association

    EIN 330451093 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  85. Airlines for America

    EIN 522113962 · Headquarters: Washington, DC, United States · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  86. Airport Minority Advisory Council Corporation

    EIN 621398266 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. Akwa Ibom State Assoc of Nigeria USA Inc

    EIN 521557391 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  88. Al Fusaic Llc

    EIN 852486564 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  89. Al-sharq Lodge No 2020

    EIN 842441671 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  90. Albert B Sabin Vaccine Institute Inc

    EIN 061389829 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. Albert L Tucker & Elizabeth T Tucker Foundation

    EIN 521866940 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  92. Alcyone Foundation

    EIN 823591763 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  93. Alex Singer Project

    EIN 521552625 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-PF

  94. Alexander & Margaret Stewart Trust

    EIN 526020260 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  95. Alfa Institute

    EIN 993106141 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  96. Alford Foundation Inc

    EIN 226025378 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  97. Alice Deal Community Association Inc

    EIN 526042415 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  98. All Souls Church Unitarian Non-profit Housing Corporation

    EIN 237147991 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Alliance for a Quality Broadband

    EIN 873516504 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. Alliance for Access to Critical Care

    EIN 842275753 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

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