Nonprofits in Seattle, Washington

Nonprofits in Seattle, Washington. Browse 7,909 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. Open Arms Perinatal Services

    EIN 911868021 · Headquarters: SEATTLE, WA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  2. Open Door Foundation

    EIN 203777240 · Headquarters: seattle, WA, US · Arts, Culture & Humanities · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  3. Open Door International Holistic Ministry

    EIN 471331459 · Headquarters: SEATTLE, WA, US · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Open Hands Medicine

    EIN 475400829 · Headquarters: Seattle, WA, US · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  5. Open Transit Software Foundation

    EIN 841786969 · Headquarters: Seattle, WA, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  6. Opening Opportunities Dba O2

    EIN 832505960 · Headquarters: Seattle, WA, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  7. Opera Plus

    EIN 471033085 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  8. Operation Eyesight Universal USA

    EIN 202682468 · Headquarters: Seattle, WA, US · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Operation Homefront of Washington Inc

    EIN 271132675 · Headquarters: SEATTLE, WA, USA · Housing & Shelter · Latest available filing year: 2012 · Primary form: IRS Form 990

  10. Operation Nightwatch Inc

    EIN 910964027 · Headquarters: SEATTLE, WA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  11. Operation Sack Lunch

    EIN 911658187 · Headquarters: SEATTLE, WA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  12. Operation Short Fall

    EIN 943160107 · Headquarters: SEATTLE, WA, US · Youth Development · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  13. Opportunities for Education Foundation

    EIN 912091348 · Headquarters: SEATTLE, WA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  14. Opportunity for All Coalition

    EIN 822288300 · Headquarters: Seattle, WA, USA · Community Improvement & Capacity Building · Latest available filing year: 2023 · Primary form: IRS Form 990

  15. Orang Juga

    EIN 472223446 · Headquarters: SEATTLE, WA, USA · Animal Related · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  16. Orca at Columbia PTA

    EIN 911444314 · Headquarters: Seattle, WA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  17. Orca Conservancy

    EIN 911742694 · Headquarters: Seattle, WA, US · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  18. Orca Swim Team

    EIN 911461943 · Headquarters: Seattle, WA, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  19. Orcas Anthroposophical Trust

    EIN 911055024 · Headquarters: SEATTLE, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Orcas Island Lit Fest

    EIN 821587219 · Headquarters: Seattle, WA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Orchestra Seattle - Seattle Chamber Singer

    EIN 911119968 · Headquarters: SEATTLE, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  22. Orchid Counseling Services

    EIN 825064922 · Headquarters: Seattle, WA, USA · Mental Health & Crisis Intervention · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ

  23. Order of Ahepa

    EIN 237567051 · Headquarters: Seattle, WA, US · Mutual & Membership Benefit · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  24. Order of Eastern Star Washington and Jurisdiction

    EIN 237446548 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  25. Order of the Amaranth Inc

    EIN 237614535 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Order of the Ascension

    EIN 813935913 · Headquarters: Seattle, WA, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Order of the Eastern Star of Washington

    EIN 910348534 · Headquarters: SEATTLE, WA, US · Mutual & Membership Benefit · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  28. Order of the Eastern Star of Washington

    EIN 916033212 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  29. Order of the Eastern Star of Washington

    EIN 916035182 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Order of the Eastern Star of Washington

    EIN 916036690 · Headquarters: Seattle, WA, US · Mutual & Membership Benefit · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  31. Order of the Eastern Star of Washington Prince Hall

    EIN 384160924 · Headquarters: SEATTLE, WA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  32. Order of the Eastern Star of Washington Prince Hall

    EIN 861971585 · Headquarters: SEATTLE, WA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  33. Order of the Eastern Star of Washington Prince Hall

    EIN 861997516 · Headquarters: SEATTLE, WA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  34. Order of the Eastern Star of Washington Prince Hall

    EIN 862012010 · Headquarters: SEATTLE, WA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  35. Order of the Eastern Star of Washington Prince Hall

    EIN 862038954 · Headquarters: SEATTLE, WA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  36. Order of the Eastern Star of Washington Prince Hall

    EIN 862074918 · Headquarters: SEATTLE, WA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  37. Order of the Eastern Star of Washington Prince Hall

    EIN 862083808 · Headquarters: SEATTLE, WA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  38. Order of the Eastern Star of Washington Prince Hall

    EIN 862121160 · Headquarters: SEATTLE, WA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  39. Order of the Eastern Star of Washington Prince Hall

    EIN 862133025 · Headquarters: SEATTLE, WA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  40. Order of the Eastern Star of Washington Prince Hall

    EIN 862209420 · Headquarters: SEATTLE, WA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  41. Order of the Eastern Star of Washington Prince Hall

    EIN 862237653 · Headquarters: SEATTLE, WA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  42. Order of the Eastern Star of Washington Prince Hall

    EIN 862264374 · Headquarters: SEATTLE, WA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  43. Order of the Eastern Star of Washington Prince Hall

    EIN 862313298 · Headquarters: SEATTLE, WA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  44. Order Sons and Daughters of Italy Grand Lodge of Northwest

    EIN 916070474 · Headquarters: SEATTLE, WA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  45. Oregon Academy of Nutrition & Dietetics

    EIN 936035883 · Headquarters: Seattle, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  46. Oregon-Washington Carpenters-employers Health and Welfare Trust Fund

    EIN 936021111 · Headquarters: SEATTLE, WA, USA · Mutual & Membership Benefit · Latest available filing year: 2020 · Primary form: IRS Form 990

  47. Oregon-Washington Carpenters-employers Vacation Savings Trust Fund

    EIN 936049213 · Headquarters: seattle, WA, USA · Mutual & Membership Benefit · Latest available filing year: 2020 · Primary form: IRS Form 990

  48. Organizacion Centroamericana

    EIN 812562582 · Headquarters: Seattle, WA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  49. Organization for Prostitution Survivors

    EIN 455153408 · Headquarters: SEATTLE, WA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. Organization of Chinese-americans Inc

    EIN 911668038 · Headquarters: SEATTLE, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  51. Organization Systems Renewal

    EIN 460483322 · Headquarters: Seattle, WA, US · Education · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  52. Organizing Committee for the Games of the Pacific Rim

    EIN 200272112 · Headquarters: Seattle, WA, US · Recreation & Sports · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  53. Original Art Foundation

    EIN 990445726 · Headquarters: SEATTLE, WA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  54. Origo

    EIN 993538376 · Headquarters: Seattle, WA, US · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Orin Smith Family Foundation

    EIN 200477535 · Headquarters: SEATTLE, WA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  56. Orion Sky Health and Wellness

    EIN 474082537 · Headquarters: SEATTLE, WA, USA · Health Care · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  57. Oromia Freedom Media

    EIN 871543838 · Headquarters: SEATTLE, WA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Oromo Cultural Center

    EIN 010566082 · Headquarters: Seattle, WA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  59. Orphans to Ambassadors

    EIN 270390644 · Headquarters: Seattle, WA, US · International, Foreign Affairs & National Security · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  60. Orquesta Northwest

    EIN 833348856 · Headquarters: SEATTLE, WA, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990

  61. Osborne Legacy Foundation

    EIN 842530084 · Headquarters: SEATTLE, WA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  62. Other 98 Percent Action Inc

    EIN 043578179 · Headquarters: Seattle, WA, USA · Social Science · Latest available filing year: 2025 · Primary form: IRS Form 990

  63. Other 98 Percent Lab

    EIN 463450243 · Headquarters: Seattle, WA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  64. Other Parent

    EIN 201868937 · Headquarters: Seattle, WA, US · Human Services · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  65. Our American Generation

    EIN 271733033 · Headquarters: Seattle, WA, US · Crime & Legal Related · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  66. Our Hope

    EIN 475159699 · Headquarters: Seattle, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  67. Our Mayberry Giving

    EIN 872047691 · Headquarters: Seattle, WA, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. Our Sammamish Valley

    EIN 814179923 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  69. Our Stories Rx

    EIN 871033536 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Ourwrites Org

    EIN 815386793 · Headquarters: Seattle, WA, USA · Civil Rights, Social Action & Advocacy · Latest available filing year: 2024 · Primary form: IRS Form 990

  71. Outbio Seattle

    EIN 990979266 · Headquarters: Seattle, WA, US · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  72. Outlanders Progressive Bluegrass Social Club

    EIN 990762510 · Headquarters: Seattle, WA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. Outreach and Resource Services for Women Veterans

    EIN 455619578 · Headquarters: Seattle, WA, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. Outventures Inc

    EIN 611673064 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Ovarian and Breast Cancer Alliance of Washington State

    EIN 432041592 · Headquarters: Seattle, WA, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. OWL

    EIN 911159739 · Headquarters: Seattle, WA, US · Human Services · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  77. P-patch

    EIN 352682654 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  78. P4 Medicine Institute

    EIN 272079809 · Headquarters: SEATTLE, WA, USA · Health Care · Latest available filing year: 2018 · Primary form: IRS Form 990-PF

  79. Pacific Alliance for Autonomous Traditions & Indigenous Sovereignty

    EIN 392672575 · Headquarters: Seattle, WA, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Pacific Association for Labor Support

    EIN 911554763 · Headquarters: Seattle, WA, US · Employment · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  81. Pacific Bamboo Resources

    EIN 271504824 · Headquarters: seattle, WA, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  82. Pacific Coast Norwegian Singers Association

    EIN 916035719 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Pacific Coast Reproductive Society

    EIN 946129010 · Headquarters: SEATTLE, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  84. Pacific Crest Montessori School

    EIN 911486734 · Headquarters: Seattle, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  85. Pacific Energy Institute

    EIN 911190090 · Headquarters: Seattle, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. Pacific First Montessori Pto

    EIN 991153727 · Headquarters: Seattle, WA, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  87. Pacific Intermountain Parking and Transportation Association

    EIN 113766787 · Headquarters: SEATTLE, WA, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  88. Pacific Jazz Institute

    EIN 911341397 · Headquarters: SEATTLE, WA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Pacific Marine Foundation

    EIN 911753489 · Headquarters: Seattle, WA, USA · Religion Related · Latest available filing year: 2023 · Primary form: IRS Form 990

  90. Pacific Marine Research

    EIN 911271685 · Headquarters: Seattle, WA, USA · Science & Technology · Latest available filing year: 2020 · Primary form: IRS Form 990

  91. Pacific Medical Centers

    EIN 562290878 · Headquarters: Seattle, WA, United States · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. Pacific Midrange Systems

    EIN 911534959 · Headquarters: Seattle, WA, US · Recreation & Sports · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  93. Pacific Musicworks

    EIN 261253117 · Headquarters: SEATTLE, WA, USA · Arts, Culture & Humanities · Latest available filing year: 2023 · Primary form: IRS Form 990

  94. Pacific Northwest Alternative Peer Groups

    EIN 852900369 · Headquarters: SEATTLE, WA, USA · Mental Health & Crisis Intervention · Latest available filing year: 2024 · Primary form: IRS Form 990

  95. Pacific Northwest Ballet

    EIN 910897129 · Headquarters: Seattle, WA, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  96. Pacific Northwest Ballet Foundation

    EIN 911736971 · Headquarters: Seattle, WA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  97. Pacific Northwest Ballet Orchestra Players Organization

    EIN 611663227 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. Pacific Northwest Bankers Association

    EIN 912108078 · Headquarters: Seattle, WA, US · Human Services · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  99. Pacific Northwest Black Community Festival Association

    EIN 911284937 · Headquarters: Seattle, WA, US · Community Improvement & Capacity Building · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  100. Pacific Northwest Black Pride

    EIN 862316186 · Headquarters: Seattle, WA, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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