Mutual & Membership Benefit nonprofits in District of Columbia

Mutual & Membership Benefit nonprofits in District of Columbia. Browse 672 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. 21 Ani Lodge

    EIN 237616107 · Headquarters: Washington DC, DC, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Advocates for Insurance Modernization

    EIN 611665717 · Headquarters: Washington, DC, USA · Mutual & Membership Benefit · Latest available filing year: 2014 · Primary form: IRS Form 990

  3. Afl-cio Health & Welfare Trust

    EIN 386847980 · Headquarters: WASHINGTON, DC, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  4. Afl-cio Mutual Benefit Fund

    EIN 134237843 · Headquarters: WASHINGTON, DC, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  5. Afscme Spu Limited Health & Welfare Trust

    EIN 924010461 · Headquarters: WASHINGTON, DC, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  6. American Association of Classified School Employees

    EIN 311000006 · Headquarters: WASHINGTON, DC, US · Mutual & Membership Benefit · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  7. American Council for Election Technology

    EIN 883748771 · Headquarters: WASHINGTON, DC, USA · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990

  8. American Federation of Government Employees

    EIN 526082801 · Headquarters: Washington, DC, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  9. American Federation of Teachers Veba Health Savings Trust

    EIN 273709589 · Headquarters: WASHINGTON, DC, USA · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990

  10. American Gas Association Welfare Benefit Trust

    EIN 900001656 · Headquarters: WASHINGTON, DC, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  11. American Insurance Association Inc

    EIN 133173374 · Headquarters: WASHINGTON, DC, USA · Mutual & Membership Benefit · Latest available filing year: 2018 · Primary form: IRS Form 990

  12. American Legal Defense Fund Inc

    EIN 863546506 · Headquarters: WASHINGTON, DC, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. 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

  14. 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

  15. 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

  16. American Society of Acupuncturists

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

  17. Ancient & Accepted Scottish Rite of Free Masonry So Juris USA

    EIN 237144212 · Headquarters: Washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  18. Ancient & Accepted Scottish Rite of Free Masonry Southern

    EIN 237619678 · Headquarters: Washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. Ancient & Accepted Scottish Rite of Free Masonry Southern

    EIN 261697513 · Headquarters: Washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  20. Ancient & Accepted Scottish Rite of Free Masonry Southern

    EIN 261884395 · Headquarters: Washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Apga Research Foundation

    EIN 200654867 · Headquarters: WASHINGTON, DC, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  22. Audrey Robinson Underwood Military Chapter No 15 Oes-pha

    EIN 204114828 · Headquarters: Washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  23. Bituminous Coal Operators' Association Inc Retiree Welfare Benefit Trust

    EIN 753101353 · Headquarters: WASHINGTON, DC, USA · Mutual & Membership Benefit · Latest available filing year: 2019 · Primary form: IRS Form 990

  24. Bricklayer & Allied Craftworkers Flexible Benefits Plan

    EIN 522107019 · Headquarters: WASHINGTON, DC, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. Chapter No 455

    EIN 273786219 · Headquarters: Washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Chi Delta Mu Fraternity

    EIN 237404760 · Headquarters: Washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  27. Children's Hospital Self-insurance Trust

    EIN 521640399 · Headquarters: WASHINGTON, DC, USA · Mutual & Membership Benefit · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  28. Clinical Scholars Program Alumni Association

    EIN 821308641 · Headquarters: Washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Council for Tobacco Research Health Ins Tr

    EIN 134043393 · Headquarters: Washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Credit Builders Alliance Inc

    EIN 208351782 · Headquarters: WASHINGTON, DC, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  31. Daughters of Isabelle

    EIN 453616549 · Headquarters: Washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  32. Dc College Sricf

    EIN 821955218 · Headquarters: Washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Deafna Foundation Inc

    EIN 822961856 · Headquarters: Washington, DC, USA · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990

  34. Debes Eritrean Association

    EIN 842730518 · Headquarters: WASHINGTON, DC, USA · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990

  35. District of Columbia Chapter of the Federal Bar Association

    EIN 521753233 · Headquarters: Washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. East Coast Chapter Tuskegee Airmen Inc

    EIN 510231448 · Headquarters: Washington, DC, USA · Mutual & Membership Benefit · Latest available filing year: 2023 · Primary form: IRS Form 990

  37. Education & Research Fund of Employee Benefit Research Institute

    EIN 521190398 · Headquarters: Washington, DC, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  38. Efik National Association Inc

    EIN 991713061 · Headquarters: Washington, DC, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  39. Electronic Payments Coalition

    EIN 474908678 · Headquarters: WASHINGTON, DC, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. Engenderhealth Welfare Benefit Trust

    EIN 510541798 · Headquarters: WASHINGTON, DC, USA · Mutual & Membership Benefit · Latest available filing year: 2019 · Primary form: IRS Form 990

  41. Fiat Lux Risk and Insurance Company

    EIN 461828839 · Headquarters: Washington, DC, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  42. First Regiment of Washington

    EIN 205465053 · Headquarters: washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  43. Fraternal Order of Police District of Columbia State Lodge

    EIN 383818704 · Headquarters: WASHINGTON, DC, US · Mutual & Membership Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  44. Free and Accepted Masons of the District of Columbia

    EIN 237586481 · Headquarters: Washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  45. Free and Accepted Masons of the District of Columbia

    EIN 270214396 · Headquarters: Washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  46. Free and Accepted Masons of the District of Columbia

    EIN 546045484 · Headquarters: WAHINGTON, DC, US · Mutual & Membership Benefit · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  47. Free and Accepted Masons of the District of Columbia Dba Lafayette

    EIN 530027311 · Headquarters: WASHINGTON, DC, US · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  48. Freemasonry for Women America Lodge Inc

    EIN 833934883 · Headquarters: Washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. Friends of Old Westview Cemetery Inc

    EIN 030465542 · Headquarters: Washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  50. Gethsemane Chapter No 3 Oes Pha

    EIN 237641354 · Headquarters: Washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  51. Glenwood Cemetery Irrv Endowment Trust

    EIN 056128643 · Headquarters: Washington, DC, USA · Mutual & Membership Benefit · Latest available filing year: 2023 · Primary form: IRS Form 990

  52. Gps Innovation Alliance

    EIN 464171871 · Headquarters: WASHINGTON, DC, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  53. Great Island Memorial Garden Tr

    EIN 043450111 · Headquarters: washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  54. Gulf South Business Roundtable Inc

    EIN 331983251 · Headquarters: WASHINGTON, DC, US · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  55. Harry V Lohman Covenant Lodge No 13 Independent Order of Odd Fellows

    EIN 581783279 · Headquarters: Washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. Hemiunu Alumni Association of the Alpha Rho Chi Fraternity Inc

    EIN 813069681 · Headquarters: Washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  57. Higher Education Consortium for Student Affairs Certification

    EIN 880865261 · Headquarters: WASHINGTON, DC, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  58. Idra Insurance Trust

    EIN 521499508 · Headquarters: WASHINGTON, DC, USA · Mutual & Membership Benefit · Latest available filing year: 2017 · Primary form: IRS Form 990-EZ

  59. Improved Benevolent & Protective Order of Elks of the World

    EIN 237621791 · Headquarters: Washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  60. Independent Order of Odd Fellows

    EIN 521434943 · Headquarters: Washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  61. Independent Order of Odd Fellows

    EIN 521434956 · Headquarters: Washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  62. Independent Order of Odd Fellows

    EIN 521803670 · Headquarters: Washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  63. Independent Order of Odd Fellows

    EIN 521901020 · Headquarters: Washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  64. Independent Order of Odd Fellows

    EIN 526071673 · Headquarters: Washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  65. Independent Order of Odd Fellows

    EIN 581783287 · Headquarters: Washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  66. Independent Order of Odd Fellows

    EIN 581783293 · Headquarters: Washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  67. Independent Order of Odd Fellows Columbia Lodge #10

    EIN 581783264 · Headquarters: Washington, DC, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  68. Independent Order of Odd Fellows Friendship Lodge #12

    EIN 526041212 · Headquarters: Washington, DC, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  69. Independent Order of Odd Fellows Grand Lodge

    EIN 526076503 · Headquarters: Washington, DC, USA · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990

  70. Independent Order of Odd Fellows Home Board

    EIN 530204619 · Headquarters: Washington, DC, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  71. Indpt Order of Odd Fellows Columbian Encampment #1

    EIN 521325733 · Headquarters: Washington, DC, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  72. Inspire Dreams Inc

    EIN 364634191 · Headquarters: Washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  73. Institute for Pension Fund Integrity

    EIN 824758084 · Headquarters: WASHINGTON, DC, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. Institutional Limited Partners Association

    EIN 753028947 · Headquarters: WASHINGTON, DC, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  75. 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

  76. International Order of the Sword and the Pen

    EIN 541889162 · Headquarters: Washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  77. International Society of Hymenopterists

    EIN 521730809 · Headquarters: Washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. Iron Workers Welfare Fund

    EIN 816696028 · Headquarters: WASHINGTON, DC, USA · Mutual & Membership Benefit · Latest available filing year: 2023 · Primary form: IRS Form 990

  79. Kappa Alpha Psi Fraternity Inc Washington(dc) Alumni Chapter

    EIN 530205684 · Headquarters: WASHINGTON, DC, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  80. Knights of Columbus

    EIN 237142208 · Headquarters: Washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  81. Knights of Columbus

    EIN 262962054 · Headquarters: Washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  82. Knights of Columbus

    EIN 432104402 · Headquarters: Washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  83. Knights of Columbus

    EIN 464018987 · Headquarters: WASHINGTON, DC, US · Mutual & Membership Benefit · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  84. Knights of Columbus

    EIN 521480990 · Headquarters: Washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  85. Knights of Peter Claver

    EIN 383850885 · Headquarters: Washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  86. Knights of St John Ladies Auxiliary 213

    EIN 521651276 · Headquarters: Washington D C, DC, US · Mutual & Membership Benefit · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  87. La France Lodge No 93

    EIN 880756045 · Headquarters: Washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  88. Lafayette 89

    EIN 611885499 · Headquarters: Washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  89. Lodge Adhuc Stat No 1782

    EIN 990838507 · Headquarters: WASHINGTON, DC, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. Masonry Veneer Manufacturers Association Inc

    EIN 113773373 · Headquarters: WASHINGTON, DC, USA · Mutual & Membership Benefit · Latest available filing year: 2012 · Primary form: IRS Form 990

  91. Mattie R Griffin Chapter No 16

    EIN 522221807 · Headquarters: Wa, DC, US · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  92. Metropolitan Washington Dc Drifters

    EIN 842584627 · Headquarters: Washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  93. Military Order of the Cootie of the United States

    EIN 526063018 · Headquarters: WASHINGTON, DC, US · Mutual & Membership Benefit · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  94. MissionSquare

    EIN 237268394 · Headquarters: Washington, DC, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  95. Most Worshipful Grand Lodge Ancient Free & Accepted Masons

    EIN 521541762 · Headquarters: Washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  96. Most Worshipful Grand Lodge Ancient Free & Accepted Masons

    EIN 521541765 · Headquarters: Washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  97. Most Worshipful Grand Lodge Ancient Free & Accepted Masons

    EIN 521541766 · Headquarters: washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  98. Most Worshipful Grand Lodge Ancient Free & Accepted Masons

    EIN 521541767 · Headquarters: Washington, DC, US · Mutual & Membership Benefit · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  99. Most Worshipful Prince Hall Grand Lodge F&am Dc and Subordinates

    EIN 237280717 · Headquarters: WASHINGTON, DC, US · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  100. Most Worshipful Prince Hall Grand Lodge F&am Dc and Subordinates

    EIN 526042375 · Headquarters: WASHINGTON, DC, US · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

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