Unknown & Unclassified nonprofits

Unknown & Unclassified nonprofits. Browse 557,756 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. Washington Heights Pta

    EIN 871453439 · Headquarters: Fort Worth, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Washington Heritage University

    EIN 541694588 · Headquarters: FAIRFAX, VA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  3. Washington High Alumni & Friends

    EIN 812549054 · Headquarters: Princess Anne, MD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  4. Washington High School Bowling Team

    EIN 824587202 · Headquarters: Washington, IN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. Washington High School Chess Association

    EIN 800397968 · Headquarters: Burlington, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  6. Washington High School Huskies Boosters

    EIN 942927116 · Headquarters: FREMONT, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  7. Washington High School Marching Blue Jay Band Booster Association

    EIN 431268325 · Headquarters: Washington, MO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. Washington High School Struts and Frets Booster Club

    EIN 341544756 · Headquarters: Massillon, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Washington Hispanic Media Association

    EIN 900686968 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  10. Washington Historical Society

    EIN 431259237 · Headquarters: WASHINGTON, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  11. Washington Hollow Rod & Gun Club Inc

    EIN 141721924 · Headquarters: PLEASANT VALLEY, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Washington Home Owners Association

    EIN 942392962 · Headquarters: San Leandro, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Washington Hospitality Association

    EIN 910586362 · Headquarters: OLYMPIA, WA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  14. Washington Housing Authority Accounting Professionals

    EIN 475315845 · Headquarters: SPOKANE, WA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  15. Washington Ice Skating Association

    EIN 911444568 · Headquarters: MOUNTLAKE TERRACE, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  16. Washington Idaho Montana Chapter of the Appraisal Institute

    EIN 916071755 · Headquarters: CHICAGO, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. Washington Improvisational Theater Company

    EIN 521543346 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  18. Washington Independent Telecommunications Association

    EIN 910582626 · Headquarters: OLYMPIA, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  19. Washington Independent Telephone Scholarship Association

    EIN 943059320 · Headquarters: OLYMPIA, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  20. Washington Industrial Development Corporation George Washington Hote

    EIN 256064234 · Headquarters: Canonsburg, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Washington Innocence Project

    EIN 833498962 · Headquarters: SEATTLE, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  22. Washington Institute for Business Government And Society

    EIN 830945899 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990

  23. Washington Institute for Conversion and the Study of Judaism

    EIN 521773465 · Headquarters: PORT ST LUCIE, FL, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  24. Washington Institute of Foreign Affairs

    EIN 536019582 · Headquarters: ROCKVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  25. Washington Institute of Music and Arts

    EIN 825304177 · Headquarters: Herndon, VA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Washington Insurance Examining Bureau

    EIN 910461310 · Headquarters: Seattle, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  27. Washington Insurance Guaranty Association

    EIN 237239389 · Headquarters: Denver, CO, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  28. Washington Integrated Networkers

    EIN 462849904 · Headquarters: EVERETT, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  29. Washington Intercollegiate Soccer

    EIN 911490324 · Headquarters: SEATTLE, WA, USA · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990

  30. Washington Interscholastic 4 District

    EIN 911220835 · Headquarters: Montesano, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  31. Washington Intl Trade Association

    EIN 521462468 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  32. Washington Investing in Safety and Education

    EIN 394939887 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Washington Island Community Health Program

    EIN 900439149 · Headquarters: WASHINGTON ISLAND, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  34. Washington Island Concert Band Ua

    EIN 822197099 · Headquarters: Washington Island, WI, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  35. Washington Island Education Association

    EIN 391517610 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  36. Washington Island Electric Cooperative

    EIN 390688605 · Headquarters: WASHINGTON IS, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. Washington Island Farm Museum Inc

    EIN 391623453 · Headquarters: Washington Island, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. Washington Island Lions Club

    EIN 993407221 · Headquarters: Washington Island, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. Washington Island Sportsman and Conservation Club Inc

    EIN 391501344 · Headquarters: Washington Island, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  40. Washington Japanese Heritage Center Inc

    EIN 043786833 · Headquarters: Alexandria, VA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  41. Washington Jaycees

    EIN 510193093 · Headquarters: WASHINGTON, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  42. Washington Jaycees Inc

    EIN 521372772 · Headquarters: Arlington, VA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  43. Washington Journalism Education Association

    EIN 910989642 · Headquarters: Seattle, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  44. Washington Junior High Parent Teacher Student Association

    EIN 237124379 · Headquarters: Olympia, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  45. Washington Kayak Club

    EIN 843609571 · Headquarters: Redmond, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. Washington Kitefliers Association

    EIN 911313674 · Headquarters: Kirkland, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. Washington Koi & Water Garden Society

    EIN 911509550 · Headquarters: Bothell, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. Washington Kosciusko Pta

    EIN 416039012 · Headquarters: Winona, MN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. Washington Ladies Riding Club Association

    EIN 331724281 · Headquarters: TACOMA, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  50. Washington Lake Associationinc

    EIN 226063710 · Headquarters: TOWNSHIP OF WASHINGTON, NJ, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  51. Washington Land Title Association

    EIN 910518933 · Headquarters: LYNNWOOD, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  52. Washington Law Review Association

    EIN 916054833 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. Washington Lawyers for the Arts

    EIN 510186229 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Washington Life & Disability Insurance Guaranty Association

    EIN 916159504 · Headquarters: Shelton, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  55. Washington Light Infantry of Charleston Inc

    EIN 570321186 · Headquarters: CHARLESTON, SC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  56. Washington Lions Club

    EIN 383065066 · Headquarters: WASHINGTON, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  57. Washington Lions Park Association

    EIN 386111381 · Headquarters: WASHINGTON, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  58. Washington Literacy Center

    EIN 526063003 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  59. Washington Little Theatre Company

    EIN 237441304 · Headquarters: WASHINGTON, GA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  60. Washington Lodge 19 a F Am

    EIN 066052810 · Headquarters: MONROE, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  61. Washington Lodge 22 Loyal Order of Moose

    EIN 250629180 · Headquarters: Washington, PA, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990

  62. Washington Lodge No 1800 Loyal Order of Moose

    EIN 560648920 · Headquarters: Washington, NC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  63. Washington Lyme Disease

    EIN 711008724 · Headquarters: Issaquah, WA, US · Unknown & Unclassified · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  64. Washington Machinist Council

    EIN 910485147 · Headquarters: Seattle, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  65. Washington Mailers Union No 29

    EIN 526049760 · Headquarters: UPPER MARLBORO, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  66. Washington Manor Resident Council

    EIN 753192136 · Headquarters: Charleston, WV, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  67. Washington Mansonic Building Corp

    EIN 710356991 · Headquarters: Fayetteville, AR, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  68. Washington Manufactured Housing Association

    EIN 910935278 · Headquarters: OLYMPIA, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  69. Washington Masonic Cemetery Inc

    EIN 472750616 · Headquarters: Washington, VA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Washington Mediation Association

    EIN 942928550 · Headquarters: SEATTLE, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. Washington Memorial Chapel

    EIN 231370477 · Headquarters: VALLEY FORGE, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-T

  72. Washington Mental Health Counselors Association

    EIN 911728718 · Headquarters: Kirkland, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. Washington Metro Chapter Pdca

    EIN 911774380 · Headquarters: CASANOVA, VA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  74. Washington Metropolitan Accordion Society

    EIN 474102727 · Headquarters: Oakton, VA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  75. Washington Metropolitan Auto Body

    EIN 520907465 · Headquarters: Mechanicsville, VA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  76. Washington Metropolitan Chapter Community Associations Institute

    EIN 521074939 · Headquarters: FALLS CHURCH, VA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  77. Washington Metropolitan Chapter of Certified Fraud Examiners Inc

    EIN 521729453 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. Washington Metropolitan Federal Bureau of Investigation Recreation Assn Inc

    EIN 536009326 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  79. Washington Metropolitan Golf Association Inc

    EIN 541219991 · Headquarters: Arnold, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  80. Washington Metropolitan Society of Health-system Pharmacists

    EIN 521336630 · Headquarters: SILVER SPRING, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  81. Washington Metropolitan Tamil Congregation Indians

    EIN 521816640 · Headquarters: Hyattsville, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  82. Washington Middle School Ptsa N6 15 390

    EIN 911251060 · Headquarters: SEATTLE, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  83. Washington Missouri Knights of Columbus Seisl Council No 1121 Edu

    EIN 431277892 · Headquarters: WASHINGTON, MO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. Washington Mo Kc Memorial Association

    EIN 431288369 · Headquarters: WASHINGTON, MO, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  85. Washington Monumental Cemetery Asso

    EIN 221368545 · Headquarters: NORTH BRUNSWICK, NJ, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  86. Washington Mortgage Bankers Association

    EIN 910719486 · Headquarters: GIG HARBOR, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. Washington Motorcycle Road Racing Association

    EIN 911540509 · Headquarters: Lynnwood, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  88. Washington Movers Conference

    EIN 910858936 · Headquarters: Lakewood, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  89. Washington Multicultural Services Link

    EIN 850786783 · Headquarters: Seattle, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  90. Washington National Eye Center Foundation

    EIN 521470885 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. Washington National Eye Center Inc

    EIN 521325467 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. Washington National Guard State Historical Society

    EIN 943135424 · Headquarters: Camp Murray, WA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  93. Washington Nh Historical Society

    EIN 020367877 · Headquarters: Washington, NH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  94. Washington Nightlife and Music Association

    EIN 920708753 · Headquarters: Bellingham, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  95. Washington Noon Rotary Charitable F Oundation

    EIN 414205644 · Headquarters: Washington, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Washington Odd Fellows Home

    EIN 910577483 · Headquarters: Walla Walla, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  97. Washington Oil Marketers Association CO WPMA

    EIN 911149913 · Headquarters: Murray, UT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  98. Washington On-site Sewage & Water System Designers Association

    EIN 911532751 · Headquarters: TACOMA, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  99. Washington Opera House Inc

    EIN 611326721 · Headquarters: MAYSVILLE, KY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  100. Washington Ophthalmological Society Inc CO Dr Jacquelyn Weber

    EIN 521609832 · Headquarters: Chevy Chase, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

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