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. Institute for Consumer Responsibility

    EIN 911443186 · Headquarters: SEATTLE, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Institute for Emergency Medical Ed

    EIN 911129592 · Headquarters: BELLINGHAM, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  3. Institute for Middle East Investment Inc

    EIN 331755845 · Headquarters: Redmond, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  4. Institute for Natural Medicine

    EIN 020464611 · Headquarters: SEATTLE, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  5. Institute for Supply Management- Western Washington

    EIN 910375380 · Headquarters: Bellevue, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. Institute for Washingtons Future

    EIN 910931421 · Headquarters: BELLINGHAM, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  7. Institute of Industrial Engineers Inc

    EIN 916063642 · Headquarters: Redmond, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Institute of Industrial Engineers Inc

    EIN 916185673 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Institute of Industrial Engineers Inc

    EIN 956141294 · Headquarters: Gig Harbor, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  10. Institute of Internal Auditors

    EIN 911149275 · Headquarters: Spokane, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  11. Institute of Internal Auditors

    EIN 911174916 · Headquarters: Olympia, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  12. Institute of Internal Auditors

    EIN 911574380 · Headquarters: Richland, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  13. Institute of Internal Auditors Seattle Chapter

    EIN 910964742 · Headquarters: newcastle, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  14. Institute of Management Accountants Inc

    EIN 200680087 · Headquarters: TACOMA, WA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  15. Institute of Management Accountants Inc

    EIN 237353649 · Headquarters: SNOQUALMIE, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  16. Institute of Management Accountants Inc

    EIN 911038923 · Headquarters: GIG HARBOR, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. Insurance Fund Foundation Inc

    EIN 916053952 · Headquarters: OLYMPIA, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  18. Int'l Brotherhood of Boilermakers Local 104

    EIN 910682659 · Headquarters: SEATAC, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  19. Int'l Brotherhood of Boilermakers Union

    EIN 911179633 · Headquarters: PUYALLUP, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  20. Inter-fraternity Council

    EIN 911234342 · Headquarters: Tacoma, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Inter-island Healthcare Foundation

    EIN 910650464 · Headquarters: FRIDAY HARBOR, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. Interbay Golf Club of Wa

    EIN 991270894 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  23. Intercommunity Concert Assn Inc

    EIN 916058170 · Headquarters: Longview, WA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  24. Intercommunity Peace and Justice Center

    EIN 943083964 · Headquarters: SEATTLE, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  25. Interfaith Network of Washington State

    EIN 911468650 · Headquarters: SEATTLE, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  26. Interfaith Works

    EIN 910947698 · Headquarters: OLYMPIA, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  27. Intergalactic Learning Center

    EIN 333978305 · Headquarters: SELAH, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. Intergroup Association of Alcoholics Anonymous

    EIN 510185615 · Headquarters: Spokane, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  29. Interim Inkeepers Network

    EIN 200543751 · Headquarters: Lake Forest Park, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Interlake Child Care And Learning Center

    EIN 911186874 · Headquarters: Seattle, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  31. Interlake Music Parents Association

    EIN 911002164 · Headquarters: Bellevue, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  32. Interlake Sporting Association

    EIN 916051286 · Headquarters: Redmond, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  33. Interlink Inc

    EIN 943156974 · Headquarters: Clarkston, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. Intermountain Chapter of the National Corvette Society Inc

    EIN 320640090 · Headquarters: Spokane Valley, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. Internat'l Assoc of Fire Fighters L3520 E Pierce Prof Fire Fighters

    EIN 911624537 · Headquarters: BONNEY LAKE, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  36. International Academy of Independent Medical Evaluators

    EIN 363654497 · Headquarters: Vancouver, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. International Alliance Theatrical Stage Employees & Moving Picture- Local No 793

    EIN 911885291 · Headquarters: SEATTLE, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  38. International Alliance Theatrical Wardrobe Union

    EIN 916054462 · Headquarters: Seattle, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  39. International Assn of Firefighters

    EIN 910551951 · Headquarters: Richland, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  40. International Assoc of Fire Fighters

    EIN 916068975 · Headquarters: Pasco, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. International Assoc of Firefighters

    EIN 916030351 · Headquarters: BELLINGHAM, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  42. International Assoc of Firefighters Dba Aberdeen Firefighters Local #2639

    EIN 911038623 · Headquarters: ABERDEEN, WA, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  43. International Assoc of Firefighters Local #452

    EIN 916060503 · Headquarters: VANCOUVER, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  44. International Assoc of Heat & Frost Insulators & Allied Workers Local 7

    EIN 910405896 · Headquarters: TUKWILA, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  45. International Assoc of Machinists & Aerospace

    EIN 910267922 · Headquarters: SEATTLE, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  46. International Assoc of Machinists & Aerospace

    EIN 910522760 · Headquarters: SEATTLE, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  47. International Association for Cryptologic Research

    EIN 770106735 · Headquarters: BELLEVUE, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  48. International Association for Near -Death Studies Inc

    EIN 943035299 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  49. International Association of 7877 Yakima Lions Club

    EIN 910487634 · Headquarters: YAKIMA, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  50. International Association of Electrical Inspectors

    EIN 911295637 · Headquarters: Nine Mile Falls, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. International Association of Electrical Inspectors

    EIN 911301103 · Headquarters: Silverdale, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. International Association of Fire

    EIN 237082434 · Headquarters: Pullman, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  53. International Association of Fire

    EIN 463790763 · Headquarters: Pasco, WA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  54. International Association of Fire

    EIN 510190367 · Headquarters: CAMAS, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  55. International Association of Fire

    EIN 510226850 · Headquarters: Everett, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  56. International Association of Fire

    EIN 911866386 · Headquarters: Redmond, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  57. International Association of Fire

    EIN 916060500 · Headquarters: Spokane, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  58. International Association of Fire

    EIN 916060502 · Headquarters: Auburn, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  59. International Association of Fire

    EIN 934517640 · Headquarters: Airway Heights, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  60. International Association of Fire Fighte

    EIN 911099259 · Headquarters: SNOHOMISH, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  61. International Association of Fire Fighters

    EIN 237062860 · Headquarters: Vancouver, WA, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990

  62. International Association of Fire Fighters

    EIN 237171187 · Headquarters: Ocean Shores, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  63. International Association of Fire Fighters

    EIN 237171192 · Headquarters: Moses Lake, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  64. International Association of Fire Fighters

    EIN 237365254 · Headquarters: Federal Way, WA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  65. International Association of Fire Fighters

    EIN 237453938 · Headquarters: Toppenish, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  66. International Association of Fire Fighters

    EIN 260067388 · Headquarters: Port Townsend, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  67. International Association of Fire Fighters

    EIN 372018355 · Headquarters: Langley, WA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  68. International Association of Fire Fighters

    EIN 510191490 · Headquarters: MOUNT VERNON, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  69. International Association of Fire Fighters

    EIN 510226779 · Headquarters: MERCER ISLAND, WA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  70. International Association of Fire Fighters

    EIN 731684723 · Headquarters: Nine Mile Falls, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  71. International Association of Fire Fighters

    EIN 770632936 · Headquarters: Vancouver, WA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  72. International Association of Fire Fighters

    EIN 821309339 · Headquarters: Spokane Valley, WA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  73. International Association of Fire Fighters

    EIN 911519177 · Headquarters: Longview, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. International Association of Fire Fighters

    EIN 911618755 · Headquarters: Sunnyside, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. International Association of Fire Fighters

    EIN 911642592 · Headquarters: Mukilteo, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  76. International Association of Fire Fighters

    EIN 911700308 · Headquarters: JBLM, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  77. International Association of Fire Fighters

    EIN 911727149 · Headquarters: Westport, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  78. International Association of Fire Fighters

    EIN 911997811 · Headquarters: Granite Falls, WA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  79. International Association of Fire Fighters

    EIN 912002778 · Headquarters: Port Orchard, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. International Association of Fire Fighters

    EIN 912004983 · Headquarters: ENUMCLAW, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  81. International Association of Fire Fighters

    EIN 912092766 · Headquarters: elma, WA, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  82. International Association of Fire Fighters

    EIN 912194811 · Headquarters: Aberdeen, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  83. International Association of Fire Fighters

    EIN 916053936 · Headquarters: Longview, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. International Association of Fire Fighters

    EIN 916055291 · Headquarters: Aberdeen, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  85. International Association of Fire Fighters

    EIN 916068978 · Headquarters: Anacortes, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. International Association of Fire Fighters

    EIN 916069066 · Headquarters: WENATCHEE, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  87. International Association of Fire Fighters - L0468 Olympia

    EIN 910982195 · Headquarters: Olympia, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  88. International Association of Fire Fighters 10066 Boeing Fire Fighters

    EIN 911723214 · Headquarters: RENTON, WA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  89. International Association of Fire Fighters L2409

    EIN 916188338 · Headquarters: Tumwater, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  90. International Association of Fire Fighters L2876 South Kitsap

    EIN 521269606 · Headquarters: PORT ORCHARD, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  91. International Association of Fire Fighters Local

    EIN 911732936 · Headquarters: Spokane, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  92. International Association of Fire Fighters Local 1747

    EIN 510226780 · Headquarters: KENT, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  93. International Association of Fire Fighters Local 1828

    EIN 510226781 · Headquarters: LYNNWOOD, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  94. International Association of Fire Fighters Local 2595

    EIN 510226847 · Headquarters: KENT, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  95. International Association of Fire Fighters Local 27

    EIN 910635137 · Headquarters: Seattle, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  96. International Association of Fire Fighters Local 2781

    EIN 912004959 · Headquarters: MILL CREEK, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  97. International Association of Fire Fighters Local 4189

    EIN 333798858 · Headquarters: Vashon Island, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  98. International Association of Fire Fighters Wa State Council of Firefi

    EIN 910729677 · Headquarters: OLYMPIA, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  99. International Association of Fire Local 3828

    EIN 911572093 · Headquarters: KELSO, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  100. International Association of Firefighter Local 404 Walla Walla

    EIN 916053938 · Headquarters: WALLA WALLA, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

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