Nonprofits in District of Columbia

Nonprofits in District of Columbia. Browse 18,651 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. Inter Tribal Center Social Change

    EIN 412156859 · Headquarters: WASHINGTON, DC, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Inter-american Bar Association

    EIN 530088262 · Headquarters: WASHINGTON, DC, USA · Community Improvement & Capacity Building · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  3. Inter-american Bar Foundation

    EIN 530244676 · Headquarters: Washington, DC, US · Crime & Legal Related · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  4. Inter-American Defense College Fdn

    EIN 800118265 · Headquarters: Washington, DC, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  5. Inter-american Defense Foundation

    EIN 452428421 · Headquarters: Washington, DC, USA · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  6. Inter-american Dialogue

    EIN 521830369 · Headquarters: WASHINGTON, DC, USA · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990

  7. Inter-american Economic Council

    EIN 233017311 · Headquarters: WASHINGTON, DC, USA · International, Foreign Affairs & National Security · Latest available filing year: 2010 · Primary form: IRS Form 990-EZ

  8. Inter-parliamentary Alliance on Chi Na

    EIN 393910746 · Headquarters: Washington DC, DC, US · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Interacademy Partnership Inc

    EIN 812774070 · Headquarters: WASHINGTON, DC, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990

  10. Interaction the American Council for Voluntary Int'l Action Inc

    EIN 133287064 · Headquarters: WASHINGTON, DC, USA · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990

  11. Interfaith Alliance

    EIN 810587332 · Headquarters: WASHINGTON, DC, US · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  12. Interfaith Alliance Inc

    EIN 521863687 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Interfaith Alliance of Central California

    EIN 770490942 · Headquarters: Washington, DC, United States · Religion Related · Latest available filing year: 2017 · Primary form: IRS Form 990-EZ

  14. Interfaith Conference of Metropolit

    EIN 521156410 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  15. Interfaith Peace-builders

    EIN 030598184 · Headquarters: WASHINGTON, DC, USA · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990

  16. Interfaith Primary School of North America

    EIN 834270215 · Headquarters: Washington, DC, US · Education · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  17. Interfaith Spiritual Practices Institute Inc

    EIN 900546164 · Headquarters: Washington DC, DC, US · Religion Related · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  18. Interfuture

    EIN 237071089 · Headquarters: Washington, DC, US · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. Intergenerational Community Development Group Inc

    EIN 811812798 · Headquarters: WASHINGTON, DC, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  20. Interim Executive Network Inc

    EIN 392645644 · Headquarters: WASHINGTON, DC, US · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Interior Department Recreation Association

    EIN 536009404 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  22. Interlibrary Users Association

    EIN 521067079 · Headquarters: Washington, DC, US · Education · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  23. Intermedia Survey Institute

    EIN 521996156 · Headquarters: WASHINGTON, DC, USA · Arts, Culture & Humanities · Latest available filing year: 2018 · Primary form: IRS Form 990

  24. International Action Inc

    EIN 050591194 · Headquarters: WASHINGTON, DC, US · International, Foreign Affairs & National Security · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  25. International Agribusiness Council Iac

    EIN 863674579 · Headquarters: Washington, DC, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  26. International Alcoholics Anonymous Men Conference

    EIN 871071972 · Headquarters: Washington, DC, US · Mental Health & Crisis Intervention · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  27. International Alliance for Responsible Drinking Inc

    EIN 521912065 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  28. International Alliance of Theatrical and Stage Employees Local 868

    EIN 526054739 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  29. International Alliance Theatrical Stage Employees & Moving Picture M

    EIN 521136931 · Headquarters: WASHINGTON, DC, US · Employment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  30. International Arbitration Forum Inc

    EIN 421869146 · Headquarters: Washington, DC, US · Crime & Legal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. International Artists Support Group

    EIN 521857259 · Headquarters: Washington, DC, US · International, Foreign Affairs & National Security · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  32. International Arts & Artists Inc

    EIN 571025197 · Headquarters: WASHINGTON, DC, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  33. International Assn of Physicians in AIDS Care

    EIN 364003367 · Headquarters: Washington, DC, USA · Medical Research · Latest available filing year: 2021 · Primary form: IRS Form 990

  34. International Assoc of Machinists & Aerospace Workers

    EIN 522260414 · Headquarters: Washington, DC, US · Employment · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  35. International Association for Human Values

    EIN 522178069 · Headquarters: Washington, DC, USA · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990

  36. International Association for Plant Taxonomy (USA)

    EIN 520817253 · Headquarters: WASHINGTON, DC, USA · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  37. International Association for Religious Freedom Us Chapter

    EIN 372021672 · Headquarters: Washington, DC, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. International Association for Suicide Prevention

    EIN 204701041 · Headquarters: WASHINGTON, DC, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  39. International Association for the Study of Pain

    EIN 237416302 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. International Association for Volunteer Effort

    EIN 237049868 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. International Association of Administrative Professionals

    EIN 371711045 · Headquarters: Washington, DC, US · Community Improvement & Capacity Building · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  42. International Association of Airport Duty Free Stores

    EIN 521283024 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. International Association of Black Professionals in Internatl Affairs

    EIN 521638889 · Headquarters: Washington, DC, USA · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  44. International Association of Color Manufacturers Inc

    EIN 521070715 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  45. International Association of Emergency Medical Services Chiefs

    EIN 262369147 · Headquarters: Washington, DC, USA · Community Improvement & Capacity Building · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  46. International Association of Fire

    EIN 521256006 · Headquarters: WASHINGTON, DC, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2011 · Primary form: IRS Form 990

  47. International Association of Fire

    EIN 521846252 · Headquarters: WASHINGTON, DC, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2011 · Primary form: IRS Form 990

  48. International Association of Fire Fighters

    EIN 530088290 · Headquarters: Washington, DC, United States · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  49. International Association of Fire Fighters

    EIN 933360426 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  50. International Association of Fire Fighters

    EIN 992673615 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  51. International Association of Fire Fighters Foundation

    EIN 611629460 · Headquarters: WASHINGTON, DC, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  52. International Association of Fire Fighters L3217 Metro Washington

    EIN 541295182 · Headquarters: WASHINGTON, DC, USA · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  53. International Association of Fire Fighters Scholarship Fund

    EIN 521121279 · Headquarters: WASHINGTON, DC, USA · Education · Latest available filing year: 2013 · Primary form: IRS Form 990-PF

  54. International Association of Firefighter Local 36

    EIN 520886831 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  55. International Association of Homes and Services for the Aging

    EIN 521921433 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  56. International Association of Lasta Lalibela

    EIN 992339218 · Headquarters: WASHINGTON, DC, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. International Association of Lions Club

    EIN 020544840 · Headquarters: Washington, DC, US · Recreation & Sports · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  58. International Association of Lions Clubs

    EIN 521146159 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  59. International Association of Lions Clubs

    EIN 521982219 · Headquarters: WASHINGTON, DC, US · Community Improvement & Capacity Building · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  60. International Association of Lions Clubs

    EIN 526056593 · Headquarters: Washington, DC, US · Community Improvement & Capacity Building · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  61. International Association of Machinists & Aerospace Workers

    EIN 010597043 · Headquarters: Washington, DC, US · Employment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  62. International Association of Machinists & Aerospace Workers

    EIN 113810364 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. International Association of Machinists & Aerospace Workers

    EIN 261072932 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. International Association of Machinists & Aerospace Workers

    EIN 311750755 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. International Association of Machinists & Aerospace Workers

    EIN 412111305 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. International Association of Machinists & Aerospace Workers

    EIN 470924642 · Headquarters: Washington, DC, US · Employment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  67. International Association of Machinists & Aerospace Workers

    EIN 522249118 · Headquarters: Washington, DC, US · Employment · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  68. International Association of Machinists & Aerospace Workers

    EIN 522287845 · Headquarters: Washington, DC, US · Employment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  69. International Association of Machinists & Aerospace Workers

    EIN 530065967 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. International Association of Machinists & Aerospace Workers

    EIN 541027657 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  71. International Association of Machinists & Aerospace Workers

    EIN 541646635 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  72. International Association of Machinists & Aerospace Workers

    EIN 542010383 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. International Association of Machinists & Aerospace Workers

    EIN 593646368 · Headquarters: Washington, DC, US · Employment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  74. International Association of Machinists & Aerospace Workers

    EIN 680304378 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  75. International Association of Machinists & Aerospace Workers

    EIN 841554850 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  76. International Association of Machinists & Aerospace Workers Nffe District Fd1

    EIN 530115360 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  77. International Association of Machinists and Aerospace Workers

    EIN 800393074 · Headquarters: Washington, DC, US · Employment · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  78. International Association of Peer Supporters

    EIN 461719864 · Headquarters: washington dc, DC, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990

  79. International Association of Sheet Metal Air Rail & Transportation

    EIN 526003281 · Headquarters: WASHINGTON, DC, US · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. International Association of Sheet Metal Air Rail & Transportation

    EIN 546052864 · Headquarters: WASHINGTON, DC, US · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  81. International Association of Women Judges

    EIN 300116135 · Headquarters: WASHINGTON, DC, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  82. International Atherosclerosis Society

    EIN 232099003 · Headquarters: WASHINGTON, DC, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2024 · Primary form: IRS Form 990

  83. International Baccalaureate Organization

    EIN 300388800 · Headquarters: WASHINGTON, DC, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  84. International Bar Association Foundation

    EIN 133377279 · Headquarters: WASHINGTON, DC, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  85. International Biomedical Research Alliance

    EIN 203382296 · Headquarters: WASHINGTON, DC, USA · Medical Research · Latest available filing year: 2024 · Primary form: IRS Form 990

  86. International Biometric Society Inc

    EIN 866053027 · Headquarters: WASHINGTON, DC, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. International Board of Heart Rhythm Examiners Inc

    EIN 042917754 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  88. International Brain Bee

    EIN 824069083 · Headquarters: WASHINGTON, DC, USA · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  89. International Bridge Tunnel and Turnpike Association

    EIN 530259945 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. International Brotherhood of Electrical Workers

    EIN 466014911 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  91. International Brotherhood of Electrical Workers

    EIN 530088380 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. International Brotherhood of Electrical Workers' Pension Benefit Fund

    EIN 520951104 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  93. International Brotherhood of Local 67

    EIN 530033272 · Headquarters: WASHINGTON, DC, USA · Employment · Latest available filing year: 2014 · Primary form: IRS Form 990

  94. International Brotherhood of Teamsters

    EIN 260104673 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  95. International Brotherhood of Teamsters

    EIN 366127841 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. International Brotherhood of Teamsters

    EIN 411590379 · Headquarters: WASHINGTON, DC, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  97. International Brotherhood of Teamsters Scholarship Fund Inc

    EIN 882958574 · Headquarters: WASHINGTON, DC, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  98. International Brotherhood of Teamsters Supplemental Benefits Trust

    EIN 200412571 · Headquarters: WASHINGTON, DC, USA · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990

  99. International Brotherhood Teamsters Voluntary Employee Benefits

    EIN 016196051 · Headquarters: WASHINGTON, DC, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. International Budget Partnership

    EIN 463995547 · Headquarters: WASHINGTON, DC, USA · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990

First page and all pages