| Hospice FriendsEllensburg | Form 990 | $53,349FY2024 |
| Parents for Student SuccessSeattle | Form 990-EZ | $53,281FY2024 |
| Richard Krantz Christian Faith MinistriesMarysville | Form 990-EZ | $53,086FY2025 |
| Fidalgo-Island View PTA Skagit CoAnacortes | Form 990-EZ | $52,775FY2025 |
| Sunrise Elementary PTA 9 7 78Kent | Form 990-EZ | $52,338FY2025 |
| Yakima Valley Rail and STEAM Museum AssociationToppenish | Form 990 | $52,009FY2026 |
| Intergroup Association of Alcoholics AnonymousSpokane | Form 990-EZ | $51,468FY2024 |
| Kenmore Elementary PTAKenmore | Form 990-EZ | $51,404FY2025 |
| Road Runners Club of AmericaBellingham | Form 990-EZ | $51,332FY2025 |
| Registry of Interpreters for the DeafSeattle | Form 990-EZ | $50,565FY2026 |
| Orting Combined PTA 5 2 35Orting | Form 990-EZ | $50,384FY2025 |
| Union Ridge PTORidgefield | Form 990-EZ | $50,087FY2026 |
| Outdoor Discovery NetworkWenatchee | Form 990-EZ | $50,055FY2025 |
| Friends of Stonerose FossilsRepublic | Form 990 | $50,020FY2024 |
| Seattle Hill Parent Teacher OrganizationEverett | Form 990-N | No figure |
| Seattle Gynecological SocietySeattle | Form 990-N | No figure |
| Camerata MusicaRichland | Form 990-N | No figure |
| Foundation of the Rotary Club of IssaquahIssaquah | Form 990-EZ | $49,210FY2025 |
| Olympic Mountain RescueBremerton | Form 990-N | No figure |
| Washington State Ffa ExhibitionTenino | Form 990-N | No figure |
| Emerald Hills Elementary PTA 5 8 15Bonney Lake | Form 990-EZ | $48,151FY2026 |
| Port Townsend High School Scholarship FoundationPort Townsend | Form 990 | $48,072FY2024 |
| Washington Elementary P T S A Tacoma Council 5 9 225Tacoma | Form 990-EZ | $48,046FY2025 |
| Palouse Community CenterPalouse | Form 990 | $47,385FY2025 |
| Beacon of Hope CenterRochester | Form 990-N | No figure |
| PTA Washington CongressSeattle | Form 990-EZ | $46,631FY2025 |
| Catholic Engaged Encounter of Oregon IncVancouver | Form 990-N | No figure |
| Washington State Demolay FoundationTacoma | Form 990-N | No figure |
| Northwest Worldwide Marriage EncounterTacoma | Form 990-N | No figure |
| Discovery PTSA 2 69Sammamish | Form 990-EZ | $45,884FY2025 |
| Propel Support ServicesKent | Form 990-N | No figure |
| MST MinistriesLacey | Form 990-N | No figure |
| Bainbridge Island Japanese- American CommunityBainbridge Island | Form 990-N | No figure |
| Ruth and Clarence Mader MemorialAuburn | Form 990-N | No figure |
| Leavenworth Seniors CouncilLeavenworth | Form 990-EZ | $44,439FY2025 |
| Trager InternationalBothell | Form 990-EZ | $44,177FY2024 |
| Soroptimist International of Port AngelesPort Angeles | Form 990-N | No figure |
| Centennial Elementary School Booster AssociationOlympia | Form 990-N | No figure |
| Clark County Genealogical SocietyVancouver | Form 990-N | No figure |
| Kirkman House MuseumWalla Walla | Form 990-N | No figure |
| Widowed Information and Consultation Services WicsBurien | Form 990-N | No figure |
| Rotary Foundation of KelsoKelso | Form 990-EZ | $40,322FY2025 |
| Little League Baseball IncVancouver | Form 990-EZ | $39,335FY2025 |
| Alpha Delta Phi FoundationKirkland | Form 990-N | No figure |
| My Family IncOlympia | Form 990-N | No figure |
| Sedro-Woolley MuseumSedro-Woolley | Form 990-N | No figure |
| Navy League of the United States National HeadquartersSeattle | Form 990-N | No figure |
| Community of Montessori Parents C O M PSpokane | Form 990-EZ | $37,319FY2025 |
| Points NE Historical SocietyTacoma | Form 990-N | No figure |
| Ilwaco Sports BoostersLong Beach | Form 990-N | No figure |