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. Sno-isle Genealogical Society

    EIN 943033882 · Headquarters: LYNNWOOD, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Sno-jammers Snowmobile Club

    EIN 161771452 · Headquarters: Puyallup, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Sno-king Amateur Hockey Association

    EIN 237275375 · Headquarters: KIRKLAND, WA, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990

  4. Sno-king International Folk Dance Club

    EIN 841137095 · Headquarters: SEATTLE, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. Snocope Credit Union

    EIN 910729043 · Headquarters: EVERETT, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  6. Snohomish Affordable Housing Group

    EIN 911536226 · Headquarters: SNOHOMISH, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  7. Snohomish Band Boosters Club

    EIN 911382594 · Headquarters: SNOHOMISH, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  8. Snohomish Basketball Association

    EIN 900250908 · Headquarters: Snohomish, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  9. Snohomish Chamber of Commerce

    EIN 916060439 · Headquarters: SNOHOMISH, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  10. Snohomish Community Food Bank

    EIN 911334772 · Headquarters: SNOHOMISH, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  11. Snohomish County 911 Employees Association

    EIN 825249542 · Headquarters: Everett, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Snohomish County Committee for Improved Transportation

    EIN 911355486 · Headquarters: Everett, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Snohomish County Dahlias Society

    EIN 911013739 · Headquarters: Arlington, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. Snohomish County Dental Society

    EIN 916055794 · Headquarters: SEATTLE, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  15. Snohomish County Family Child Care Association

    EIN 562515044 · Headquarters: Marysville, WA, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  16. Snohomish County Farm Bureau

    EIN 910961398 · Headquarters: Everett, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  17. Snohomish County Legal Services

    EIN 911215739 · Headquarters: EVERETT, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  18. Snohomish County Master Gardner Foundation

    EIN 943052943 · Headquarters: Snohomish, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  19. Snohomish County Medical Society

    EIN 916037282 · Headquarters: SEATTLE, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  20. Snohomish County Music Project

    EIN 911204042 · Headquarters: Everett, WA, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990

  21. Snohomish County Mycological Society

    EIN 237259767 · Headquarters: Everett, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. Snohomish County Sheriffs Posse Inc

    EIN 916030953 · Headquarters: Snohomish, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Snohomish County Sheriffs Volunteer S Asociation

    EIN 911882018 · Headquarters: Everett, WA, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  24. Snohomish County Tourism Bureau

    EIN 911688421 · Headquarters: Everett, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. Snohomish County Wa - Moms for Liberty

    EIN 335066234 · Headquarters: Arlington, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Snohomish County-Camano Association of REALTORS

    EIN 916032407 · Headquarters: Everett, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  27. Snohomish Dog Off-leash Group

    EIN 261635389 · Headquarters: Snohomish, WA, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  28. Snohomish Education Association

    EIN 911171197 · Headquarters: SNOHOMISH, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  29. Snohomish High School Panther Parents Club

    EIN 271413535 · Headquarters: Snohomish, WA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  30. Snohomish High School Panther Parents Club

    EIN 463615382 · Headquarters: Snohomish, WA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  31. Snohomish Junior Athletics Assoc

    EIN 911159706 · Headquarters: SNOHOMISH, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  32. Snohomish Seniors

    EIN 911496597 · Headquarters: SNOHOMISH, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  33. Snohomish Sportsmens Association Inc

    EIN 916187487 · Headquarters: Snohomish, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  34. Snohomish Track Club

    EIN 911058148 · Headquarters: Bothell, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  35. Snomish County O E S Club

    EIN 271158903 · Headquarters: Arlington, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  36. Snoqualmie Valley Beekeepers

    EIN 450824496 · Headquarters: Fall City, WA, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  37. Snoqualmie Valley Chamber of Commerce

    EIN 943235707 · Headquarters: NORTH BEND, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  38. Snoqualmie Valley Chapter 843 Women of the Moose

    EIN 237521590 · Headquarters: North Bend, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. Snoqualmie Valley Historical Society

    EIN 237249714 · Headquarters: North Bend, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  40. Snoqualmie Valley Little League (LLBI)

    EIN 911104948 · Headquarters: North Bend, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. Snoqualmie Valley Lodge 1666

    EIN 910554169 · Headquarters: North Bend, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  42. Snoqualmie Valley Preservation Alliance

    EIN 273266712 · Headquarters: Carnation, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. Snoqualmie Valley Riding Club

    EIN 916036528 · Headquarters: North Bend, WA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  44. Snoqualmie Valley Rifle Club Inc

    EIN 911478313 · Headquarters: Fall City, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  45. Snoqualmie Valley Schools Foundation

    EIN 911454155 · Headquarters: FALL CITY, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  46. Snoqualmie Valley Wrestling Club

    EIN 394186454 · Headquarters: Snoqualmie, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. Snoqualmie Valley Youth Activities and Community Center Association

    EIN 911161925 · Headquarters: North Bend, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  48. Snowplow 410 Fund

    EIN 990961320 · Headquarters: Lake Forest Park, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  49. Soap Lake Food Bank

    EIN 911454702 · Headquarters: SOAP LAKE, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  50. Soap Lake Rod and Gun Club

    EIN 916062254 · Headquarters: soaplake, WA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  51. Soap Lake Urban Homestead

    EIN 462598422 · Headquarters: Soap Lake, WA, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  52. Social Justice Fund Northwest

    EIN 911036971 · Headquarters: SEATTLE, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  53. Society for Features Journalism

    EIN 942941661 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  54. Society for Human Resource Management

    EIN 911271284 · Headquarters: KENNEWICK, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Society for Japanese Studies

    EIN 237411578 · Headquarters: SEATTLE, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  56. Society for Marketing Professional Services Seattle Chapter

    EIN 911289881 · Headquarters: SEATTLE, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  57. Society for Northwestern Vertebrate Biology

    EIN 916053399 · Headquarters: Olympia, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Society for Pediatric Pathology

    EIN 222812917 · Headquarters: GIG HARBOR, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  59. Society for Philosophy and Technology

    EIN 351583682 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. Society for Preservation & Encourmt of Barbershop Quartet Singing Amer

    EIN 237175123 · Headquarters: Centralia, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Society for Preservation & Encourmt of Barbershop Quartet Singing Amer

    EIN 911254707 · Headquarters: Ellensburg, WA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  62. Society for Preservation & Encourmt of Barbershop Quartet Singing Amer

    EIN 916055018 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. Society for Preservation & Encourmt of Barbershop Quartet Singing Amer

    EIN 916058507 · Headquarters: SPOKANE VALLEY, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Society for Preservation & Encourmt of Barbershop Quartet Singing Amer

    EIN 916067165 · Headquarters: BELLINGHAM, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  65. Society for Preservation & Encourmt of Barbershop Quartet Singing Amer

    EIN 916091032 · Headquarters: Yakima, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Society for Preservation & Encrgmnt of Barbershop Quartet Singing Amer

    EIN 813462705 · Headquarters: Clinton, WA, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  67. Society for Preservation & Encrgmnt of Barbershop Quartet Singing Amer

    EIN 911067931 · Headquarters: Silverdale, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  68. Society for Preservation & Encrgmnt of Barbershop Quartet Singing Amer

    EIN 911734796 · Headquarters: Friday Harbor, WA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  69. Society for Preservation & Encrgmnt of Barbershop Quartet Singing Amer

    EIN 918056158 · Headquarters: Kent, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Society for Protestant Reformed Education in Lynden

    EIN 911022503 · Headquarters: LYNDEN, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  71. Society for Range Management Wa Chapter

    EIN 871711686 · Headquarters: Davenport, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Society for Technical Communication

    EIN 916182430 · Headquarters: Shoreline, WA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  73. Society for the Advancement of Material and Process Engineering

    EIN 472765579 · Headquarters: seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  74. Society of American Foresters

    EIN 237065210 · Headquarters: McCleary, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  75. Society of American Military Engineers

    EIN 201706707 · Headquarters: Spokane, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  76. Society of American Military Engineers

    EIN 916055014 · Headquarters: Tacoma, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Society of Antique Modelers

    EIN 873151249 · Headquarters: Kirkland, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. Society of Financial Service Professionals South Sound Chapter

    EIN 916062076 · Headquarters: Tacoma, WA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  79. Society of Fire Protection Engineers Pacific Nw Inc

    EIN 916064788 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  80. Society of Gastroenterology Nurses and Associates Inc

    EIN 364235451 · Headquarters: SEATTLE, WA, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  81. Society of Government Meeting Professionals

    EIN 911462532 · Headquarters: Des Moines, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  82. Society of Health and Physical Educators

    EIN 911187481 · Headquarters: REDMOND, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  83. Society of Hispanic Professional Engineers Puget Sound Chapter

    EIN 911340842 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  84. Society of Manufacturing Engineers

    EIN 237166307 · Headquarters: Auburn, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Society of Manufacturing Engineers

    EIN 911225627 · Headquarters: Spokane, WA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  86. Society of Pediatric Nurses

    EIN 813209981 · Headquarters: Spokane, WA, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  87. Society of Phi Zeta

    EIN 223100748 · Headquarters: Pullman, WA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  88. Society of Photo Technologists

    EIN 840592496 · Headquarters: Cheney, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Society of Plastics Engineers

    EIN 916056467 · Headquarters: Maple Valley, WA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  90. Society of Professional Journalists

    EIN 916055570 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. Society of St Vincent De Paul St Philip Conference

    EIN 811276537 · Headquarters: Woodland, WA, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  92. Society of the War of 1812 in the State of Washington

    EIN 461648703 · Headquarters: Mercer Island, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. Society of Urologic Nurses & Associates Yakima Valley Chapter

    EIN 300450043 · Headquarters: Yakima, WA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  94. Society of Washington Artists

    EIN 510185814 · Headquarters: Vancouver, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. Society of Women Engineers

    EIN 800607168 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Society of Women Engineers

    EIN 911454496 · Headquarters: Bellevue, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. Society of Women Engineers

    EIN 911462951 · Headquarters: Richland, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  98. Sodaptsa

    EIN 471085424 · Headquarters: Port Orchard, WA, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  99. Sogetsu School of Ikebana Seattle Branch

    EIN 464831828 · Headquarters: Kirkland, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. Soil and Water Conservation Society

    EIN 237437604 · Headquarters: Garfield, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

First page and all pages