| 1 | Gates Foundation | Philanthropy, Voluntarism & Grantmaking | $8.2B | $78.7B |
| 2 | Providence Health & Services Oregon | Health Care | $6.2B | $4.7B |
| 3 | Seattle Childrens Hospital | Health Care | $2.9B | $5.6B |
| 4 | Fred Hutchinson Cancer Center | Health Care | $2.8B | $3.5B |
| 5 | Providence Health System-southern California | Health Care | $2.4B | $3.5B |
| 6 | Delta Dental of Washington | Health Care | $1.9B | $258.7M |
| 7 | Allen Family Philanthropies | Philanthropy, Voluntarism & Grantmaking | $1.9B | $1.4B |
| 8 | Chp of Washington | Health Care | $1.7B | $498.6M |
| 9 | Virginia Mason Medical Center | Health Care | $1.3B | $1.4B |
| 10 | The Seattle Foundation | Philanthropy, Voluntarism & Grantmaking | $785.0M | $1.4B |
| 11 | Seattle University | Unclassified | $741.1M | $971.5M |
| 12 | Sea Mar Community Health Centers | Health Care | $580.4M | $465.0M |
| 13 | Providence Health & Services Mt | Health Care | $567.8M | $431.8M |
| 14 | Association of University Physicians | Education | $504.8M | $334.8M |
| 15 | Providence Saint Johns Health Center | Health Care | $501.6M | $523.1M |
| 16 | SEIU Healthcare Nw Health Benefits Trust | Mutual & Membership Benefit | $484.6M | $479.5M |
| 17 | Marguerite Casey Foundation | Human Services | $484.6M | $876.6M |
| 18 | Washington Teamster Welfare Trust | Unclassified | $469.2M | $399.8M |
| 19 | Middletown Works Hourly & Salaried Union Retirees Health Care Fund | Mutual & Membership Benefit | $454.4M | $680.8M |
| 20 | Path | International, Foreign Affairs & National Security | $393.8M | $416.1M |
| 21 | Bezos Family Foundation | Philanthropy, Voluntarism & Grantmaking | $375.8M | $154.2M |
| 22 | Printing Specialties & Paper Prod Jt Empl & Un Health & Welf Plan | Unclassified | $368.4M | $113.8M |
| 23 | California Service Employees Health and Welfare Trust Fund | Unclassified | $345.7M | $160.6M |
| 24 | Catholic Community Services of Western Washington | Human Services | $332.6M | $181.2M |
| 25 | Swedish Edmonds | Health Care | $321.0M | $280.1M |
| 26 | Greater Good Charities | Philanthropy, Voluntarism & Grantmaking | $316.4M | $16.0M |
| 27 | San Francisco Culinary Bartenders & Service Employees Welfare Fund | Unclassified | $314.0M | $132.4M |
| 28 | Pacmed Clinics | Health Care | $312.4M | $116.5M |
| 29 | Maxaid | Diseases, Disorders & Medical Disciplines | $309.1M | $73.6M |
| 30 | Community Health Network of Washington | Unclassified | $302.5M | $320.8M |
| 31 | The Association of Chrmc and University Physicians | Health Care | $299.4M | $60.6M |
| 32 | Locals 302 and 612 of the Internatl Union of Operating Engineers Const | Unclassified | $280.7M | $325.0M |
| 33 | Allen Institute | Medical Research | $272.1M | $367.1M |
| 34 | Roots and Wings Foundation INC | Philanthropy, Voluntarism & Grantmaking | $255.0M | $611.8M |
| 35 | Puget Sound Electrical Workers Healthcare Trust Fund | Unclassified | $230.8M | $64.6M |
| 36 | The Allen Institute for Artificial Intelligence | Science & Technology | $216.4M | $138.9M |
| 37 | Lakeside School | Education | $214.9M | $590.5M |
| 38 | Casey Family Programs | Philanthropy, Voluntarism & Grantmaking | $211.0M | $2.7B |
| 39 | Evergreen Goodwill of Northwest Washington | Unclassified | $191.7M | $136.6M |
| 40 | Retirees Welfare Trust | Unclassified | $191.5M | $156.8M |
| 41 | University of Washington Foundation | Education | $180.5M | $3.6M |
| 42 | The Young Mens Christian Association of Greater Seattle | Human Services | $177.0M | $270.1M |
| 43 | Agc-international Union of Operating Engineers | Unclassified | $171.9M | $78.2M |
| 44 | Seattle Pacific University | Education | $166.1M | $346.5M |
| 45 | Bloodworks | Health Care | $164.2M | $112.3M |
| 46 | Western Teamsters Welfare Trust | Unclassified | $160.7M | $172.3M |
| 47 | Ken Birdwell Foundation | Philanthropy, Voluntarism & Grantmaking | $158.5M | $147.2M |
| 48 | Seattle Childrens Foundation | Unclassified | $155.3M | $3.4M |
| 49 | Food Lifeline | Food, Agriculture & Nutrition | $151.2M | $32.0M |
| 50 | Neighborcare Health | Health Care | $144.4M | $82.3M |
| 51 | Seattle Childrens Healthcare System | Health Care | $144.1M | $1.3B |
| 52 | Teamsters Local Union 856 Health and Welfare Fund | Unclassified | $139.0M | $84.0M |
| 53 | Seattle Metropolitan Credit Union | Unclassified | $126.5M | $1.1B |
| 54 | Washington Institute for Coagulation | Diseases, Disorders & Medical Disciplines | $122.5M | $78.7M |
| 55 | Northwest Iron Workers Health & Security Trust | Unclassified | $119.2M | $83.6M |
| 56 | Pioneer Human Services | Human Services | $116.4M | $81.4M |
| 57 | Lighthouse for the Blind INC | Unclassified | $110.6M | $72.5M |
| 58 | Low Income Housing Institute | Unclassified | $108.6M | $490.1M |
| 59 | Young Womens Christian Association of Seattle-king County-snohomish C | Human Services | $103.8M | $300.8M |
| 60 | Downtown Emergency Service Center | Mental Health & Crisis Intervention | $103.5M | $132.8M |
| 61 | Seattle Theatre Group | Arts, Culture & Humanities | $102.2M | $83.7M |
| 62 | Aldarra Foundation | Philanthropy, Voluntarism & Grantmaking | $101.2M | $946K |
| 63 | International Community Health Services | Health Care | $101.2M | $103.0M |
| 64 | The Seattle Academy of Arts and Sciences | Education | $99.0M | $320.9M |
| 65 | Uw Physicians Network | Education | $98.8M | $65.1M |
| 66 | Seattle Art Museum | Arts, Culture & Humanities | $98.7M | $414.0M |
| 67 | Seattle Public Library Foundation | Education | $96.9M | $104.1M |
| 68 | Benaroya Research Institute at Virginia Mason | Medical Research | $93.6M | $96.0M |
| 69 | Planned Parenthood Great Northwest Hawaii Alaska Indiana & Ky INC | Health Care | $92.2M | $111.8M |
| 70 | Nia Tero Foundation | Environment | $89.2M | $80.6M |
| 71 | Childrens Home Society of Washington | Human Services | $87.2M | $55.6M |
| 72 | Woodland Park Zoological Society | Animal-Related | $84.3M | $102.4M |
| 73 | Comagine Health | Unclassified | $82.6M | $66.4M |
| 74 | Swedish Medical Center Foundation | Health Care | $80.8M | $201.9M |
| 75 | Washington Dental Service | Health Care | $80.4M | $173.9M |
| 76 | Salal Credit Union | Unclassified | $77.6M | $1.2B |
| 77 | Plymouth Housing Group | Housing & Shelter | $74.6M | $356.5M |
| 78 | College Spark Washington | Education | $74.3M | $123.2M |
| 79 | American Civil Liberties Union of Washington Foundation | Civil Rights, Social Action & Advocacy | $74.0M | $62.9M |
| 80 | Bradburd Family Foundation Dtd 61898 Between Arnold W Etal | Philanthropy, Voluntarism & Grantmaking | $70.0M | $35.6M |
| 81 | Service Employees International Union | Unclassified | $69.4M | $83.8M |
| 82 | Cascade Public Media | Arts, Culture & Humanities | $68.8M | $120.3M |
| 83 | Kearny Gateway LLC | Mutual & Membership Benefit | $68.5M | $0 |
| 84 | United Way of King County | Philanthropy, Voluntarism & Grantmaking | $68.1M | $57.4M |
| 85 | Wilburforce Foundation | Philanthropy, Voluntarism & Grantmaking | $68.1M | $153.3M |
| 86 | Panorama Global | International, Foreign Affairs & National Security | $63.6M | $67.5M |
| 87 | Satterberg Foundation | Philanthropy, Voluntarism & Grantmaking | $63.6M | $425.6M |
| 88 | Northwest Plumbing & Pipe Fitting Industry Health & Welfare & Vacati | Unclassified | $63.5M | $53.1M |
| 89 | Raikes Foundation | Philanthropy, Voluntarism & Grantmaking | $61.3M | $97.7M |
| 90 | Service Employees Health and Welfare Trust | Unclassified | $61.3M | $41.8M |
| 91 | Caroline Kline Galland Home | Health Care | $60.9M | $34.8M |
| 92 | Marys Place Seattle | Human Services | $60.1M | $48.3M |
| 93 | Healthierhere | Human Services | $59.1M | $59.5M |
| 94 | Montana Teamsters Employers Trust 1014 Rrb No | Unclassified | $56.0M | $45.7M |
| 95 | Institute for Systems Biology | Science & Technology | $55.9M | $109.3M |
| 96 | Portage Bay Insurance | Mutual & Membership Benefit | $55.6M | $187.4M |
| 97 | Legal Foundation of Washington | Crime & Legal-Related | $55.5M | $99.6M |
| 98 | Seattle Aquarium Society-seas | Animal-Related | $54.8M | $211.4M |
| 99 | Navos | Mental Health & Crisis Intervention | $54.4M | $105.0M |
| 100 | Archdiocesan Housing Authority | Housing & Shelter | $54.2M | $162.8M |