Unknown & Unclassified nonprofits in Washington

Unknown & Unclassified nonprofits in Washington. Browse 12,928 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 Institute of Aeronautics and Astronautics

    EIN 260113505 · Headquarters: Pullman, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  2. American Institute of Aeronautics and Astronautics

    EIN 911608960 · Headquarters: Lake Stevens, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  3. American Institute of Architects Sw Wa Chapter

    EIN 916055705 · Headquarters: SEATTLE, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  4. American Institute of Chemical Engineers

    EIN 521205206 · Headquarters: RICHLAND, WA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  5. American International Education Foundation

    EIN 474127098 · Headquarters: SHORELINE, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  6. American Iris Society

    EIN 911422535 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. American Legion

    EIN 205134546 · Headquarters: Onalaska, WA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  8. American Legion

    EIN 237093120 · Headquarters: UNIVESITY PLACE, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  9. American Legion

    EIN 261837836 · Headquarters: DuPont, WA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  10. American Legion

    EIN 263380194 · Headquarters: Lacey, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. American Legion

    EIN 300536496 · Headquarters: Dayton, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. American Legion

    EIN 461406403 · Headquarters: Anderson Island, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  13. American Legion

    EIN 475320092 · Headquarters: FORKS, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. American Legion

    EIN 562357645 · Headquarters: Poulsbo, WA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  15. American Legion

    EIN 800766679 · Headquarters: Spanaway, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. American Legion

    EIN 810667959 · Headquarters: WESTPORT, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. American Legion

    EIN 811051722 · Headquarters: Rochester, WA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  18. American Legion

    EIN 880844934 · Headquarters: Kettle Falls, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. American Legion

    EIN 910121135 · Headquarters: JOYCE, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. American Legion

    EIN 910124910 · Headquarters: Spokane, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  21. American Legion

    EIN 910124918 · Headquarters: Toppenish, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. American Legion

    EIN 910124920 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. American Legion

    EIN 910291015 · Headquarters: Olympia, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. American Legion

    EIN 910384503 · Headquarters: TACOMA, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. American Legion

    EIN 910505399 · Headquarters: Waitsburg, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. American Legion

    EIN 910509444 · Headquarters: Pullman, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. American Legion

    EIN 910521743 · Headquarters: RITZVILLE, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. American Legion

    EIN 910542157 · Headquarters: Concrete, WA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  29. American Legion

    EIN 910554772 · Headquarters: Vancouver, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  30. American Legion

    EIN 910660769 · Headquarters: BAINBRIDGE ISLAND, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. American Legion

    EIN 910667773 · Headquarters: White Salmon, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. American Legion

    EIN 910743571 · Headquarters: METALINE FALLS, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. American Legion

    EIN 910866607 · Headquarters: Sumas, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. American Legion

    EIN 910867719 · Headquarters: Garfiled, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. American Legion

    EIN 911319684 · Headquarters: Bellingham, WA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  36. American Legion

    EIN 911438193 · Headquarters: Gig Harbor, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. American Legion

    EIN 911730307 · Headquarters: Washougal, WA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  38. American Legion

    EIN 911919626 · Headquarters: Spokane, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  39. American Legion

    EIN 912160126 · Headquarters: Clarkston, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  40. American Legion

    EIN 916002105 · Headquarters: Colville, WA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  41. American Legion

    EIN 916032479 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  42. American Legion

    EIN 916048321 · Headquarters: Auburn, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. American Legion

    EIN 916053772 · Headquarters: Shelton, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. American Legion

    EIN 916053774 · Headquarters: Ilwaco, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. American Legion

    EIN 916053775 · Headquarters: Grandview, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. American Legion

    EIN 916053776 · Headquarters: Monroe, WA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  47. American Legion

    EIN 916053780 · Headquarters: OROVILLE, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  48. American Legion

    EIN 916053781 · Headquarters: Yakima, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. American Legion

    EIN 916053784 · Headquarters: Granite Falls, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. American Legion

    EIN 916053793 · Headquarters: SHORELINE, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  51. American Legion

    EIN 916054137 · Headquarters: Tenino, WA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  52. American Legion

    EIN 916054141 · Headquarters: Lacey, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. American Legion

    EIN 916054142 · Headquarters: KALAMA, WA, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  54. American Legion

    EIN 916054146 · Headquarters: Conway, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. American Legion

    EIN 916054148 · Headquarters: St John, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. American Legion

    EIN 916054591 · Headquarters: Port Orchard, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. American Legion

    EIN 916055403 · Headquarters: Sequim, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. American Legion

    EIN 916055404 · Headquarters: Sequim, WA, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  59. American Legion

    EIN 916056146 · Headquarters: Colton, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. American Legion

    EIN 916057521 · Headquarters: Marysville, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. American Legion

    EIN 916057621 · Headquarters: SNOQUALMIE, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. American Legion

    EIN 916057622 · Headquarters: Manson, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  63. American Legion

    EIN 916058070 · Headquarters: MORTON, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. American Legion

    EIN 916058423 · Headquarters: Twisp, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. American Legion

    EIN 916071796 · Headquarters: Medical Lake, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  66. American Legion

    EIN 916075457 · Headquarters: EATONVILLE, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  67. American Legion

    EIN 916075465 · Headquarters: MINERAL, WA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  68. American Legion

    EIN 916075466 · Headquarters: Castle Rock, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. American Legion

    EIN 916075469 · Headquarters: Carnation, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. American Legion

    EIN 916075474 · Headquarters: Tacoma, WA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  71. American Legion #0155

    EIN 910514866 · Headquarters: LONGVIEW, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  72. American Legion 37 Lynnwood

    EIN 237117245 · Headquarters: Mill Creek, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. American Legion 9Th District 9Th District

    EIN 911596203 · Headquarters: WENATCHEE, WA, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  74. American Legion Art Semro Post 28

    EIN 910526534 · Headquarters: Ephrata, WA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  75. American Legion Auxiliary

    EIN 010944245 · Headquarters: LACEY, WA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  76. American Legion Auxiliary

    EIN 237033023 · Headquarters: Eastsound, WA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  77. American Legion Auxiliary

    EIN 237433344 · Headquarters: Wapato, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. American Legion Auxiliary

    EIN 263276627 · Headquarters: Puyallup, WA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  79. American Legion Auxiliary

    EIN 273094677 · Headquarters: Ridgefield, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  80. American Legion Auxiliary

    EIN 300528217 · Headquarters: Ilwaco, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  81. American Legion Auxiliary

    EIN 301205359 · Headquarters: Anderson Island, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  82. American Legion Auxiliary

    EIN 352346952 · Headquarters: GRAYLAND, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  83. American Legion Auxiliary

    EIN 394706087 · Headquarters: Granite Falls, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  84. American Legion Auxiliary

    EIN 753256910 · Headquarters: Kent, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. American Legion Auxiliary

    EIN 800630297 · Headquarters: UNIVERSITY PLACE, WA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  86. American Legion Auxiliary

    EIN 800650699 · Headquarters: Rosburg, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  87. American Legion Auxiliary

    EIN 830536968 · Headquarters: Spokane Valley, WA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  88. American Legion Auxiliary

    EIN 881822713 · Headquarters: Castle Rock, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  89. American Legion Auxiliary

    EIN 900718121 · Headquarters: Colville, WA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  90. American Legion Auxiliary

    EIN 900868057 · Headquarters: DUPONT, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. American Legion Auxiliary

    EIN 910722660 · Headquarters: Cheney, WA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  92. American Legion Auxiliary

    EIN 911042232 · Headquarters: Renton, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. American Legion Auxiliary

    EIN 911142989 · Headquarters: Shoreline, WA, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  94. American Legion Auxiliary

    EIN 911150452 · Headquarters: Olympia, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. American Legion Auxiliary

    EIN 911211117 · Headquarters: SNOHOMISH, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. American Legion Auxiliary

    EIN 911515688 · Headquarters: Benton City, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. American Legion Auxiliary

    EIN 911616576 · Headquarters: Cashmere, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. American Legion Auxiliary

    EIN 911983156 · Headquarters: Bothell, WA, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  99. American Legion Auxiliary

    EIN 912165581 · Headquarters: RAINIER, WA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  100. American Legion Auxiliary

    EIN 916027693 · Headquarters: Bellingham, WA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

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