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. Long Live Gogo Foundation

    EIN 862481236 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  2. Look Up Lift Up

    EIN 852546204 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  3. Lorton Art Program Inc

    EIN 521083522 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  4. Los Angeles Organizing Committee

    EIN 463151496 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990

  5. Louis W Roy Sr Council of Deliberation

    EIN 452628625 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. Louisiana State Society

    EIN 541578798 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  7. Lowcountry Chapter of Aspa

    EIN 521204236 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Lt Joseph P Kennedy Institute

    EIN 530258035 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  9. Lubuto Library Project Inc

    EIN 134294962 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  10. Ludlow Taylor Elementary Pta

    EIN 943458258 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  11. Lulac National Educational Service Centers Inc

    EIN 237262876 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  12. Luminate Foundation Inc

    EIN 823941326 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  13. Lupus Foundation of America DC/MD/VA Chapter Inc

    EIN 237448063 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990

  14. Lupus Foundation of America Inc

    EIN 431131436 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  15. M F L Inc

    EIN 522148083 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  16. Made in Missouri Pac Inc

    EIN 932954416 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  17. Maids of Athena Muses 22

    EIN 990927588 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. Majority Forward

    EIN 833690373 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  19. Makers Assembly Project

    EIN 464940916 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  20. Making Every Vote Count Inc

    EIN 821714821 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Malaysia Us Chamber of Commerce

    EIN 460907669 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  22. Malaysian Palm Oil Council

    EIN 541735924 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  23. Malnutrition Advocacy Fund

    EIN 921539936 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  24. Malta Conferences Foundation

    EIN 352414218 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  25. Mana a National Latina Organization

    EIN 521095111 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  26. MANA Action Fund Inc

    EIN 861623726 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  27. Managed Funds Association

    EIN 770277826 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  28. Manchester String Quartet Inc

    EIN 521446391 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  29. Manufactured Housing Association for Regulatory Reform

    EIN 521402909 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  30. Manufactured Imports Promotion Organization

    EIN 521204929 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  31. Map USA

    EIN 843584449 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  32. Mapaction USA Inc

    EIN 843641056 · Headquarters: WASHINGTON DC, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Margaret Mcnamara Education Grants

    EIN 521655741 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. Marian C Newsome Tr

    EIN 466390849 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  35. Marine Gas Hazards Control Program

    EIN 521171545 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  36. Maritime Archaeological and Historical Society

    EIN 541515401 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. Maritime Institute for Research & Development

    EIN 521171303 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  38. Maritime Trades Department Afl-cio

    EIN 530231686 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  39. Marketplace Solutions and Incentives Project

    EIN 473552567 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ

  40. Marvin Fowler Royal Arch Masons

    EIN 932244681 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  41. Mary House Inc

    EIN 521253494 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  42. Mary W Smallwood Memorial Foundation Inc

    EIN 237295519 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Mary's Center for Maternal and Child Care Inc

    EIN 521594116 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  44. Maryland Health Care Coalition Inc

    EIN 521324879 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Maryland Radiological Society Inc

    EIN 526040915 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  46. Maryland Workers' Compensation Educational Association Inc

    EIN 521353216 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  47. Mathematical Association of America

    EIN 116015911 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  48. Mathematical Association of America

    EIN 237155832 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. Mathematical Association of America

    EIN 237155833 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  50. Mathematical Association of America

    EIN 237155834 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  51. Mathematical Association of America

    EIN 237155835 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. Mathematical Association of America

    EIN 237155836 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. Mathematical Association of America

    EIN 237155837 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Mathematical Association of America

    EIN 237155838 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Mathematical Association of America

    EIN 237155839 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  56. Mathematical Association of America

    EIN 237155840 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  57. Mathematical Association of America

    EIN 237155841 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Mathematical Association of America

    EIN 237155842 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  59. Mathematical Association of America

    EIN 237155843 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. Mathematical Association of America

    EIN 237155844 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Mathematical Association of America

    EIN 237155845 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Mathematical Association of America

    EIN 237155846 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. Mathematical Association of America

    EIN 237155847 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  64. Mathematical Association of America

    EIN 237155848 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. Mathematical Association of America

    EIN 237155849 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Mathematical Association of America

    EIN 237155850 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Mathematical Association of America

    EIN 237155851 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  68. Mathematical Association of America

    EIN 237155852 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  69. Mathematical Association of America

    EIN 237155853 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  70. Mathematical Association of America

    EIN 237159375 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  71. Mathematical Association of America

    EIN 346524885 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Mathematical Association of America

    EIN 486120362 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  73. Mathematical Association of America

    EIN 510207470 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. Mathematical Association of America

    EIN 756038595 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Mathematical Association of America

    EIN 836006620 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. Mathematical Association of America Inc

    EIN 160743079 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  77. Mauritius- U S Business Association Incorporated

    EIN 521937318 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. Mavericks Inc

    EIN 471939582 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  79. Max & Victoria Dreyfus Foundation Inc

    EIN 131687573 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  80. Media Matters Action Network

    EIN 770646754 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  81. Medical Countermeasure Systems Consortium Inc

    EIN 813915879 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  82. Medical Device Manufacturers Association

    EIN 521802000 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  83. Medical Society and Alliance Foundation Inc

    EIN 521161806 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  84. Medical Society Auxiliary of the District of Columbia

    EIN 237063965 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Medical Society of the District of Colum

    EIN 530108420 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  86. Medical Supply Drive

    EIN 850529203 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  87. Medico-chirurgical Society of Dc Foundation

    EIN 521848262 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  88. Mediterranean Affairs Inc

    EIN 521598843 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  89. Mehr Lodge 90

    EIN 932879658 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  90. Melanoma Research Foundation

    EIN 760514428 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. Melvin & Estelle Gelman Foundation

    EIN 526042344 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  92. Memory of African Culture Inc

    EIN 521296879 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  93. Men for Nations

    EIN 911361749 · Headquarters: Washington DC, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Meridian Hill

    EIN 201259726 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  95. Merriman Foundation

    EIN 237113720 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  96. Mesnikoff Foundation C/o Ann R Mesnikoff-crystal

    EIN 237450437 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  97. Metal Trades Department Afl-cio

    EIN 530025758 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  98. Metam Task Force

    EIN 273899447 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  99. Methyl Isothiocyanate Task Force C/o B&c Consortia Management Llc

    EIN 273899544 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  100. Metro Dc Democratic Socialists of America

    EIN 825231340 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

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