| Year |
Employer |
Vendor Name |
Amount |
Source |
| 2017 |
Department Of Transportation |
Skanska Usa Civil West Ca Dist |
$37,056,307.66 |
Washington State Checkbook |
| 2025 |
Social And Health Services |
Pierce County |
$37,012,696.46 |
Washington State Checkbook |
| 2019 |
Washington State Checkbook |
Vigor Marine Llc |
$36,998,567.55 |
Washington State Checkbook |
| 2025 |
Social And Health Services |
Senior Life Resources Northwest, |
$36,979,024.65 |
Washington State Checkbook |
| 2019 |
Washington State Checkbook |
Korean Womens Association |
$36,879,373.57 |
Washington State Checkbook |
| 2020 |
Washington State Checkbook |
Hopelink |
$36,879,225.38 |
Washington State Checkbook |
| 2023 |
Health Care Authority |
Community Health Association Of |
$36,845,023.75 |
Washington State Checkbook |
| 2017 |
Department Of Transportation |
Central Washington Asphalt Inc |
$36,724,911.39 |
Washington State Checkbook |
| 2019 |
Washington State Checkbook |
Puget Sound Educ Svc Dist 121 |
$36,668,721.84 |
Washington State Checkbook |
| 2025 |
Enterprise Services |
Bnbuilders Inc |
$36,608,568.88 |
Washington State Checkbook |
| 2025 |
Social And Health Services |
Us Bank Purchasing Card Program |
$36,601,453.88 |
Washington State Checkbook |
| 2025 |
Children, Youth, And Families |
University Of Washington |
$36,581,484.31 |
Washington State Checkbook |
| 2018 |
Social And Health Services |
North Sound Behavioral Hlth Org |
$36,525,099.26 |
Washington State Checkbook |
| 2022 |
Washington State Checkbook |
Colehour & Cohen Inc |
$36,486,868.64 |
Washington State Checkbook |
| 2022 |
Washington State Checkbook |
Chesterfield Services Inc |
$36,384,688.56 |
Washington State Checkbook |
| 2023 |
Children, Youth, And Families |
King Co Finance |
$36,331,636.32 |
Washington State Checkbook |
| 2017 |
Wash State Health Care Authority |
Yakima Valley Farm Workers Clini |
$36,219,869.91 |
Washington State Checkbook |
| 2022 |
Washington State Checkbook |
Insight Public Sector Inc |
$36,165,666.06 |
Washington State Checkbook |
| 2021 |
Washington State Checkbook |
Ospi General Fund 001 |
$36,011,126.48 |
Washington State Checkbook |
| 2021 |
Washington State Checkbook |
Beacon Health Options Inc |
$35,965,339.39 |
Washington State Checkbook |
| 2019 |
Washington State Checkbook |
Com General Acct |
$35,926,177.58 |
Washington State Checkbook |
| 2021 |
Washington State Checkbook |
Kiewit Infrastructure West Co |
$35,906,732.42 |
Washington State Checkbook |
| 2017 |
Wash State Health Care Authority |
Hopelink |
$35,844,653.86 |
Washington State Checkbook |
| 2025 |
Health |
King Co Public Health |
$35,642,974.84 |
Washington State Checkbook |
| 2020 |
Washington State Checkbook |
Rainier Inc |
$35,597,690.97 |
Washington State Checkbook |
| 2025 |
Health Care Authority |
Sea-Mar Community Health Center |
$35,575,337.03 |
Washington State Checkbook |
| 2019 |
Washington State Checkbook |
Client Network Services Llc |
$35,462,865.93 |
Washington State Checkbook |
| 2021 |
Washington State Checkbook |
Yakima Valley Farm Workers Clini |
$35,447,759.00 |
Washington State Checkbook |
| 2017 |
Dept Of Social And Health Services |
Ambitions Of Washington |
$35,397,400.36 |
Washington State Checkbook |
| 2017 |
Wash State Health Care Authority |
Sea-Mar Community Health Center |
$35,364,970.85 |
Washington State Checkbook |
| 2019 |
Washington State Checkbook |
First Choice In-Home Care, Inc. |
$35,351,298.84 |
Washington State Checkbook |
| 2024 |
Transportation |
Snohomish Co Public Transit Ben |
$35,341,294.00 |
Washington State Checkbook |
| 2018 |
Transportation |
Central Washington Asphalt Inc |
$35,185,381.72 |
Washington State Checkbook |
| 2023 |
Social And Health Services |
Hope Human Services Llc |
$35,173,175.32 |
Washington State Checkbook |
| 2023 |
Military Department |
Swedish Health Services |
$35,155,489.27 |
Washington State Checkbook |
| 2020 |
Washington State Checkbook |
International Business Machines |
$35,138,592.55 |
Washington State Checkbook |
| 2024 |
Social And Health Services |
Geras Llc |
$35,011,936.00 |
Washington State Checkbook |
| 2025 |
Military Department |
Dnr Deposit Acct |
$34,980,154.35 |
Washington State Checkbook |
| 2024 |
Social And Health Services |
Senior Life Resources Northwest, |
$34,944,499.10 |
Washington State Checkbook |
| 2025 |
Health Care Authority |
Puyallup Tribal Health Authority |
$34,898,501.96 |
Washington State Checkbook |
| 2020 |
Washington State Checkbook |
Bloodworks |
$34,826,495.32 |
Washington State Checkbook |
| 2024 |
Health |
Ospi General Fund 001 |
$34,794,011.48 |
Washington State Checkbook |
| 2021 |
Washington State Checkbook |
Kuehg Corp |
$34,786,704.55 |
Washington State Checkbook |
| 2019 |
Washington State Checkbook |
North Sound Behavioral Hlth Org |
$34,639,306.03 |
Washington State Checkbook |
| 2020 |
Washington State Checkbook |
Kuehg Corp |
$34,621,733.85 |
Washington State Checkbook |
| 2025 |
Social And Health Services |
Snohomish County |
$34,528,648.75 |
Washington State Checkbook |
| 2021 |
Washington State Checkbook |
Puget Sound Educ Svc Dist 121 |
$34,468,150.10 |
Washington State Checkbook |
| 2017 |
Wash State Health Care Authority |
Regence Blueshield |
$34,463,504.45 |
Washington State Checkbook |
| 2025 |
Social And Health Services |
Wa State Consolidated Tech Svcs |
$34,318,063.04 |
Washington State Checkbook |
| 2025 |
Health Care Authority |
Healthpoint |
$34,249,007.33 |
Washington State Checkbook |
| 2023 |
Health Care Authority |
North Sound Behavioral Hlth Org |
$34,235,083.41 |
Washington State Checkbook |
| 2021 |
Washington State Checkbook |
Public Hospital District 1 Of Ki |
$34,194,478.11 |
Washington State Checkbook |
| 2018 |
Social And Health Services |
Korean Womens Association |
$34,066,302.32 |
Washington State Checkbook |
| 2020 |
Washington State Checkbook |
Alpha Supported Living Services |
$34,040,025.33 |
Washington State Checkbook |
| 2023 |
Social And Health Services |
King County |
$34,002,882.55 |
Washington State Checkbook |
| 2025 |
Social And Health Services |
Hoffman Construction Company Of |
$33,974,781.57 |
Washington State Checkbook |
| 2022 |
Washington State Checkbook |
Evergreen School District 114 |
$33,873,205.43 |
Washington State Checkbook |
| 2022 |
Washington State Checkbook |
King Co Natural Resources |
$33,815,024.74 |
Washington State Checkbook |
| 2022 |
Washington State Checkbook |
Seattle School Dist 1 |
$33,812,622.82 |
Washington State Checkbook |
| 2020 |
Washington State Checkbook |
Puget Sound Educ Svc Dist 121 |
$33,764,733.16 |
Washington State Checkbook |
| 2024 |
Children, Youth, And Families |
Washington State Child Care Res |
$33,740,184.18 |
Washington State Checkbook |
| 2021 |
Washington State Checkbook |
Addus Healthcare Inc. |
$33,728,579.87 |
Washington State Checkbook |
| 2025 |
Social And Health Services |
Deloitte Consulting Llp |
$33,642,614.81 |
Washington State Checkbook |
| 2024 |
Corrections |
Cardinal Health 130 Llc |
$33,618,658.63 |
Washington State Checkbook |
| 2022 |
Washington State Checkbook |
Spokane Public School Dist 81 |
$33,593,306.72 |
Washington State Checkbook |
| 2022 |
Washington State Checkbook |
Spokane Regional Health Dist |
$33,432,081.83 |
Washington State Checkbook |
| 2024 |
Social And Health Services |
Amicable Health Care |
$33,402,723.22 |
Washington State Checkbook |
| 2017 |
Department Of Health |
Merck Sharp And Dohme Corp |
$33,390,280.05 |
Washington State Checkbook |
| 2021 |
Washington State Checkbook |
Hntb Corp |
$33,358,275.94 |
Washington State Checkbook |
| 2019 |
Washington State Checkbook |
International Business Machines |
$33,349,466.81 |
Washington State Checkbook |
| 2025 |
Labor And Industries |
Atg Legal Svcs |
$33,334,374.18 |
Washington State Checkbook |
| 2024 |
Transportation |
Hdr Engineering Inc |
$33,317,878.62 |
Washington State Checkbook |
| 2023 |
Civil Legal Aid |
Northwest Justice Project |
$33,288,932.92 |
Washington State Checkbook |
| 2024 |
Health |
Pfizer Inc |
$33,236,641.70 |
Washington State Checkbook |
| 2021 |
Washington State Checkbook |
Scarsella Bros Inc |
$33,212,160.37 |
Washington State Checkbook |
| 2023 |
Social And Health Services |
Medefis Inc |
$33,167,250.41 |
Washington State Checkbook |
| 2020 |
Washington State Checkbook |
Thurston County |
$33,156,845.29 |
Washington State Checkbook |
| 2019 |
Washington State Checkbook |
Granite Construction Company |
$33,137,732.00 |
Washington State Checkbook |
| 2020 |
Washington State Checkbook |
Sister's Of Providence - Provide |
$33,027,257.49 |
Washington State Checkbook |
| 2018 |
Social And Health Services |
Spokane Co Community Svc |
$33,020,786.65 |
Washington State Checkbook |
| 2018 |
Transportation |
Max J Kuney Company |
$33,013,319.57 |
Washington State Checkbook |
| 2019 |
Washington State Checkbook |
Public Hospital District 1 Of Ki |
$32,955,469.01 |
Washington State Checkbook |
| 2024 |
Health Care Authority |
Accredo Health Group Inc |
$32,922,605.42 |
Washington State Checkbook |
| 2018 |
Transportation |
Vigor Fab Llc |
$32,871,798.79 |
Washington State Checkbook |
| 2022 |
Washington State Checkbook |
Seattle City Of Dept Of Transp |
$32,870,517.65 |
Washington State Checkbook |
| 2020 |
Washington State Checkbook |
Chesterfield Services Inc |
$32,860,202.24 |
Washington State Checkbook |
| 2023 |
Ecology |
Rcfb Capital Projects |
$32,832,926.55 |
Washington State Checkbook |
| 2025 |
Transportation |
Graham Contracting Ltd |
$32,757,749.73 |
Washington State Checkbook |
| 2023 |
Transportation |
Hdr Engineering Inc |
$32,756,414.38 |
Washington State Checkbook |
| 2018 |
Health |
Merck Sharp And Dohme Corp |
$32,752,417.85 |
Washington State Checkbook |
| 2021 |
Washington State Checkbook |
Ofm Enterprise Systems Fee |
$32,702,166.71 |
Washington State Checkbook |
| 2019 |
Washington State Checkbook |
Uw-Grant & Contract Accounting |
$32,696,797.87 |
Washington State Checkbook |
| 2023 |
Transportation |
Jacobs Engineering Group Inc |
$32,639,373.40 |
Washington State Checkbook |
| 2022 |
Washington State Checkbook |
Northwest Justice Project |
$32,605,243.31 |
Washington State Checkbook |
| 2020 |
Washington State Checkbook |
Merck Sharp And Dohme Corp |
$32,601,008.48 |
Washington State Checkbook |
| 2019 |
Washington State Checkbook |
Yakima Valley Farm Workers Clini |
$32,568,823.69 |
Washington State Checkbook |
| 2017 |
Department Of Transportation |
Rainier Inc |
$32,560,862.82 |
Washington State Checkbook |
| 2025 |
Social And Health Services |
Addus Healthcare Inc. |
$32,478,536.58 |
Washington State Checkbook |
| 2023 |
Social And Health Services |
Kyndryl Inc |
$32,444,436.80 |
Washington State Checkbook |
| 2025 |
Natural Resources |
Aero-Flite Inc |
$32,437,378.83 |
Washington State Checkbook |