| Year |
Employer |
Vendor Name |
Amount |
Source |
| 2021 |
Washington State Checkbook |
Doc Correctional Industries |
$82,675,224.16 |
Washington State Checkbook |
| 2024 |
Health Care Authority |
Sister's Of Providence - Provide |
$82,207,265.48 |
Washington State Checkbook |
| 2023 |
Transportation |
Granite Construction Company |
$81,514,432.83 |
Washington State Checkbook |
| 2017 |
Wash State Health Care Authority |
University Of Washington |
$81,323,494.99 |
Washington State Checkbook |
| 2018 |
Health Care Authority |
Greater Columbia Behavioral Heal |
$80,781,188.23 |
Washington State Checkbook |
| 2023 |
Children, Youth, And Families |
Des Risk Mgmt Self Insur Claim |
$80,596,736.00 |
Washington State Checkbook |
| 2020 |
Washington State Checkbook |
Multicare Health System |
$80,558,213.02 |
Washington State Checkbook |
| 2023 |
Military Department |
Uw-Grant & Contract Accounting |
$80,178,608.77 |
Washington State Checkbook |
| 2019 |
Washington State Checkbook |
Cts Cts Allocations |
$79,902,148.52 |
Washington State Checkbook |
| 2023 |
Health Care Authority |
University Of Washington |
$79,770,571.88 |
Washington State Checkbook |
| 2024 |
Health Care Authority |
King Co Finance |
$79,265,361.52 |
Washington State Checkbook |
| 2025 |
Commerce |
Wash St Housing Financecomm |
$78,866,836.77 |
Washington State Checkbook |
| 2020 |
Washington State Checkbook |
Dcyf |
$78,846,879.42 |
Washington State Checkbook |
| 2024 |
Social And Health Services |
Catholic Community Services Of W |
$78,775,709.81 |
Washington State Checkbook |
| 2025 |
Social And Health Services |
Ambitions Of Washington |
$78,332,575.06 |
Washington State Checkbook |
| 2017 |
Dept Of Social And Health Services |
King Co Finance |
$78,316,033.97 |
Washington State Checkbook |
| 2022 |
Washington State Checkbook |
Pierce County Housing Programs |
$78,269,302.46 |
Washington State Checkbook |
| 2025 |
Health Care Authority |
Harborview Medical Center |
$78,242,471.82 |
Washington State Checkbook |
| 2024 |
Health Care Authority |
Regence Blueshield |
$78,030,074.68 |
Washington State Checkbook |
| 2022 |
Washington State Checkbook |
Regence Blueshield |
$77,575,160.43 |
Washington State Checkbook |
| 2019 |
Washington State Checkbook |
Hoffman-Pacific A Jv |
$77,485,532.16 |
Washington State Checkbook |
| 2022 |
Washington State Checkbook |
Seattle City Of Util Solid Wst |
$77,206,407.96 |
Washington State Checkbook |
| 2025 |
Health Care Authority |
King County |
$76,662,969.75 |
Washington State Checkbook |
| 2023 |
Social And Health Services |
Ambitions Of Washington |
$76,391,418.44 |
Washington State Checkbook |
| 2024 |
Health Care Authority |
Seattle Childrens Hospital |
$76,347,161.59 |
Washington State Checkbook |
| 2018 |
Health Care Authority |
Sea Mar Community Health Centers |
$75,971,488.08 |
Washington State Checkbook |
| 2025 |
Corrections |
Doc Correctional Industries |
$75,869,149.38 |
Washington State Checkbook |
| 2019 |
Washington State Checkbook |
Doc Correctional Industries |
$75,800,335.15 |
Washington State Checkbook |
| 2023 |
Transportation |
Us Bank Purchasing Card Program |
$75,689,760.63 |
Washington State Checkbook |
| 2024 |
Social And Health Services |
Ambitions Of Washington |
$75,679,988.31 |
Washington State Checkbook |
| 2023 |
Health Care Authority |
Seattle Childrens Hospital |
$75,644,942.55 |
Washington State Checkbook |
| 2023 |
Social And Health Services |
Seattle City Of Human Services |
$75,479,371.81 |
Washington State Checkbook |
| 2019 |
Washington State Checkbook |
Des Risk Mgmt Self Insur Claim |
$75,176,640.90 |
Washington State Checkbook |
| 2022 |
Washington State Checkbook |
Multicare Health System |
$74,518,604.05 |
Washington State Checkbook |
| 2025 |
Health Care Authority |
Coordinated Care Of Wa Inc |
$74,424,438.85 |
Washington State Checkbook |
| 2019 |
Washington State Checkbook |
King Co Finance |
$74,348,509.93 |
Washington State Checkbook |
| 2024 |
Transportation |
Skanska Usa Civil West Ca Dist |
$74,198,916.91 |
Washington State Checkbook |
| 2025 |
Health Care Authority |
University Of Washington |
$73,805,362.27 |
Washington State Checkbook |
| 2021 |
Washington State Checkbook |
King Co Finance |
$73,677,128.72 |
Washington State Checkbook |
| 2019 |
Washington State Checkbook |
United Behavioral Health Inc |
$73,416,152.80 |
Washington State Checkbook |
| 2023 |
Commerce |
Submittable Holdings Inc |
$72,971,622.70 |
Washington State Checkbook |
| 2020 |
Washington State Checkbook |
Kiewit Infrastructure West Co |
$72,957,511.80 |
Washington State Checkbook |
| 2021 |
Washington State Checkbook |
Seattle City Of Dept Of Transp |
$72,550,586.72 |
Washington State Checkbook |
| 2021 |
Washington State Checkbook |
Catholic Community Services Of W |
$71,938,952.40 |
Washington State Checkbook |
| 2019 |
Washington State Checkbook |
Graham Contracting Ltd |
$71,702,711.73 |
Washington State Checkbook |
| 2024 |
Transportation |
Us Bank Purchasing Card Program |
$71,232,623.98 |
Washington State Checkbook |
| 2020 |
Washington State Checkbook |
Dshs Economic Svs Hq |
$71,139,915.86 |
Washington State Checkbook |
| 2018 |
Social And Health Services |
King Co Finance |
$71,131,774.24 |
Washington State Checkbook |
| 2025 |
Transportation |
Us Bank Purchasing Card Program |
$70,932,096.93 |
Washington State Checkbook |
| 2021 |
Washington State Checkbook |
Regence Blueshield |
$70,896,722.77 |
Washington State Checkbook |
| 2022 |
Washington State Checkbook |
Ofm Core Financials |
$70,748,419.51 |
Washington State Checkbook |
| 2023 |
Health Care Authority |
Regence Blueshield |
$70,648,018.40 |
Washington State Checkbook |
| 2025 |
Social And Health Services |
Korean Womens Association |
$70,624,577.10 |
Washington State Checkbook |
| 2023 |
Social And Health Services |
Catholic Community Services Of W |
$70,507,136.76 |
Washington State Checkbook |
| 2017 |
Department Of Transportation |
Central Puget Sound Transit Auth |
$70,228,834.67 |
Washington State Checkbook |
| 2023 |
Health Care Authority |
King Co Finance |
$70,131,206.49 |
Washington State Checkbook |
| 2022 |
Washington State Checkbook |
Catholic Community Services Of W |
$70,025,845.13 |
Washington State Checkbook |
| 2021 |
Washington State Checkbook |
Coordinated Care Of Wa Inc |
$69,858,890.38 |
Washington State Checkbook |
| 2019 |
Washington State Checkbook |
Spokane County |
$69,714,864.61 |
Washington State Checkbook |
| 2025 |
Health Care Authority |
Carelon Behavioral Health Inc |
$69,672,882.24 |
Washington State Checkbook |
| 2017 |
Department Of Transportation |
Vigor Fab Llc |
$69,388,212.80 |
Washington State Checkbook |
| 2022 |
Washington State Checkbook |
Seattle Childrens Hospital |
$69,370,291.13 |
Washington State Checkbook |
| 2019 |
Washington State Checkbook |
Seattle Childrens Hospital |
$69,237,863.42 |
Washington State Checkbook |
| 2025 |
Transportation |
Scarsella Bros Inc |
$69,058,090.24 |
Washington State Checkbook |
| 2025 |
Transportation |
King Co Metro Transit |
$68,869,228.00 |
Washington State Checkbook |
| 2025 |
Commerce |
King County |
$68,275,279.27 |
Washington State Checkbook |
| 2020 |
Washington State Checkbook |
Hoffman-Pacific A Jv |
$68,250,547.58 |
Washington State Checkbook |
| 2024 |
Corrections |
Doc Correctional Industries |
$68,198,518.39 |
Washington State Checkbook |
| 2020 |
Washington State Checkbook |
Flatiron West Inc The Lane Const |
$67,650,860.01 |
Washington State Checkbook |
| 2025 |
Social And Health Services |
Clark Construction Group Llc |
$67,502,453.53 |
Washington State Checkbook |
| 2022 |
Washington State Checkbook |
Cts Cts Allocations |
$67,428,047.72 |
Washington State Checkbook |
| 2017 |
Department Of Transportation |
Flatiron West Inc |
$67,365,037.48 |
Washington State Checkbook |
| 2025 |
Social And Health Services |
First Choice In-Home Care, Inc. |
$66,310,116.45 |
Washington State Checkbook |
| 2020 |
Washington State Checkbook |
Seattle Childrens Hospital |
$66,236,622.57 |
Washington State Checkbook |
| 2023 |
Health Care Authority |
Coordinated Care Of Wa Inc |
$65,966,345.90 |
Washington State Checkbook |
| 2023 |
Corrections |
Doc Correctional Industries |
$65,823,001.70 |
Washington State Checkbook |
| 2024 |
Transportation |
Hntb Corp |
$65,818,986.79 |
Washington State Checkbook |
| 2024 |
Health Care Authority |
University Of Washington |
$65,261,171.57 |
Washington State Checkbook |
| 2020 |
Washington State Checkbook |
Sbctc Fund 001 |
$65,000,952.32 |
Washington State Checkbook |
| 2019 |
Washington State Checkbook |
Unitedhealthcare Of Washington |
$64,698,129.51 |
Washington State Checkbook |
| 2022 |
Washington State Checkbook |
Doc Correctional Industries |
$64,644,437.63 |
Washington State Checkbook |
| 2021 |
Washington State Checkbook |
Washington Health Benefit Exchng |
$64,538,104.82 |
Washington State Checkbook |
| 2024 |
Health Care Authority |
Carelon Behavioral Health Inc |
$64,047,625.56 |
Washington State Checkbook |
| 2019 |
Washington State Checkbook |
Dshs Economic Svs Hq |
$64,037,196.68 |
Washington State Checkbook |
| 2025 |
Health |
Merck Sharp And Dohme Corp |
$63,929,898.96 |
Washington State Checkbook |
| 2023 |
Health Care Authority |
Sister's Of Providence - Provide |
$63,915,263.95 |
Washington State Checkbook |
| 2023 |
Public Schools |
Evergreen School District 114 |
$63,819,021.76 |
Washington State Checkbook |
| 2019 |
Washington State Checkbook |
Aacres Wa Llc |
$63,648,853.66 |
Washington State Checkbook |
| 2017 |
Wash State Health Care Authority |
Coordinated Care Of Wa Inc |
$63,573,203.90 |
Washington State Checkbook |
| 2022 |
Washington State Checkbook |
Federal Way Public Schools |
$63,475,684.74 |
Washington State Checkbook |
| 2024 |
Health Care Authority |
Coordinated Care Of Wa Inc |
$63,147,771.55 |
Washington State Checkbook |
| 2021 |
Washington State Checkbook |
Legal Foundation Of Washington |
$63,128,931.46 |
Washington State Checkbook |
| 2024 |
Military Department |
Agr Industrial Insur Refund |
$63,029,558.83 |
Washington State Checkbook |
| 2021 |
Washington State Checkbook |
Kennewick School District 17 |
$63,027,862.37 |
Washington State Checkbook |
| 2024 |
Social And Health Services |
Korean Womens Association |
$62,556,437.64 |
Washington State Checkbook |
| 2024 |
Health |
King Co Public Health |
$62,524,526.28 |
Washington State Checkbook |
| 2019 |
Washington State Checkbook |
Washington Health Benefit Exchng |
$62,477,083.64 |
Washington State Checkbook |
| 2021 |
Washington State Checkbook |
Cts Cts Allocations |
$62,452,415.85 |
Washington State Checkbook |
| 2022 |
Washington State Checkbook |
Sea-Mar Community Health Center |
$62,402,890.10 |
Washington State Checkbook |
| 2025 |
Social And Health Services |
Alpha Supported Living Services |
$62,375,058.68 |
Washington State Checkbook |