| Year |
Employer |
Vendor Name |
Amount |
Source |
| 2025 |
Military Department |
Wash State Dept Of Health |
$62,263,527.27 |
Washington State Checkbook |
| 2021 |
Washington State Checkbook |
Sbctc Fund 001 |
$61,971,909.40 |
Washington State Checkbook |
| 2024 |
Health Care Authority |
Dshs Aging Adult Sv Admin Hq |
$61,783,645.40 |
Washington State Checkbook |
| 2024 |
Commerce |
Wash St Housing Financecomm |
$61,701,585.12 |
Washington State Checkbook |
| 2023 |
Transportation |
Hntb Corp |
$61,616,803.99 |
Washington State Checkbook |
| 2023 |
Commerce |
Snohomish County Human Services |
$61,558,868.62 |
Washington State Checkbook |
| 2021 |
Washington State Checkbook |
Cts Services |
$61,393,168.68 |
Washington State Checkbook |
| 2025 |
Children, Youth, And Families |
Atg Legal Svcs |
$61,186,641.29 |
Washington State Checkbook |
| 2021 |
Washington State Checkbook |
Jay Franco And Sons Inc |
$61,174,958.00 |
Washington State Checkbook |
| 2018 |
Transportation |
Hoffman-Pacific A Jv |
$61,129,423.67 |
Washington State Checkbook |
| 2022 |
Washington State Checkbook |
Ambitions Of Washington |
$61,000,062.42 |
Washington State Checkbook |
| 2019 |
Washington State Checkbook |
Great Rivers Behavioral Health O |
$60,989,225.59 |
Washington State Checkbook |
| 2020 |
Washington State Checkbook |
Washington Health Benefit Exchng |
$60,976,003.36 |
Washington State Checkbook |
| 2024 |
Commerce |
King Co Housing & Comm Dev |
$60,899,230.44 |
Washington State Checkbook |
| 2025 |
Children, Youth, And Families |
Kuehg Corp |
$60,685,653.13 |
Washington State Checkbook |
| 2024 |
Social And Health Services |
First Choice In-Home Care, Inc. |
$60,647,825.04 |
Washington State Checkbook |
| 2024 |
Children, Youth, And Families |
Atg Legal Svcs |
$60,235,246.41 |
Washington State Checkbook |
| 2022 |
Washington State Checkbook |
Shi International Corp |
$60,133,249.73 |
Washington State Checkbook |
| 2020 |
Washington State Checkbook |
Seattle City Of Dept Of Transp |
$60,126,481.86 |
Washington State Checkbook |
| 2022 |
Washington State Checkbook |
Tacoma Pierce County Health Dept |
$60,117,233.72 |
Washington State Checkbook |
| 2020 |
Washington State Checkbook |
Cts Cts Allocations |
$59,821,923.81 |
Washington State Checkbook |
| 2023 |
Transportation |
Rainier Inc |
$59,667,675.92 |
Washington State Checkbook |
| 2017 |
Wash State Health Care Authority |
Swedish Health Services |
$59,445,236.63 |
Washington State Checkbook |
| 2022 |
Washington State Checkbook |
Korean Womens Association |
$59,441,541.56 |
Washington State Checkbook |
| 2021 |
Washington State Checkbook |
Shi International Corp |
$59,307,108.84 |
Washington State Checkbook |
| 2019 |
Washington State Checkbook |
Sbctc Fund 001 |
$59,097,446.80 |
Washington State Checkbook |
| 2018 |
Health Care Authority |
Washington Health Benefit Exchng |
$58,802,620.90 |
Washington State Checkbook |
| 2020 |
Washington State Checkbook |
King Co Finance |
$58,541,339.19 |
Washington State Checkbook |
| 2020 |
Washington State Checkbook |
Cts Services |
$58,527,405.67 |
Washington State Checkbook |
| 2024 |
Transportation |
Max J Kuney Company |
$58,511,098.17 |
Washington State Checkbook |
| 2021 |
Washington State Checkbook |
Seattle Childrens Hospital |
$58,508,175.53 |
Washington State Checkbook |
| 2017 |
Wash State Health Care Authority |
Multicare Health System |
$58,490,811.17 |
Washington State Checkbook |
| 2022 |
Washington State Checkbook |
Coordinated Care Of Wa Inc |
$58,193,071.00 |
Washington State Checkbook |
| 2020 |
Washington State Checkbook |
Coordinated Care Of Wa Inc |
$57,914,224.27 |
Washington State Checkbook |
| 2025 |
Social And Health Services |
City Of Seattle |
$57,866,872.80 |
Washington State Checkbook |
| 2023 |
Transportation |
Wsp Usa Inc |
$57,763,494.40 |
Washington State Checkbook |
| 2019 |
Washington State Checkbook |
Cts Services |
$57,741,411.67 |
Washington State Checkbook |
| 2024 |
Transportation |
Ceccanti Inc |
$56,997,006.48 |
Washington State Checkbook |
| 2025 |
Transportation |
Ceccanti Inc |
$56,918,130.67 |
Washington State Checkbook |
| 2025 |
Social And Health Services |
Geras Llc |
$56,899,049.51 |
Washington State Checkbook |
| 2022 |
Washington State Checkbook |
Flatiron West Inc The Lane Const |
$56,893,944.61 |
Washington State Checkbook |
| 2025 |
Health Care Authority |
Hopelink |
$56,541,199.20 |
Washington State Checkbook |
| 2023 |
Social And Health Services |
Korean Womens Association |
$56,497,988.15 |
Washington State Checkbook |
| 2022 |
Washington State Checkbook |
Uw-Grant & Contract Accounting |
$56,265,027.86 |
Washington State Checkbook |
| 2017 |
Wash State Health Care Authority |
Great Rivers Behavioral Health O |
$56,250,387.03 |
Washington State Checkbook |
| 2020 |
Washington State Checkbook |
Granite Construction Company |
$56,024,690.25 |
Washington State Checkbook |
| 2025 |
Military Department |
Franciscan Health System |
$55,727,558.78 |
Washington State Checkbook |
| 2017 |
Wash State Health Care Authority |
Washington Health Benefit Exchng |
$55,677,020.14 |
Washington State Checkbook |
| 2022 |
Washington State Checkbook |
Sbctc Fund 001 |
$55,625,334.29 |
Washington State Checkbook |
| 2018 |
Health Care Authority |
Swedish Health Services |
$55,534,983.98 |
Washington State Checkbook |
| 2024 |
Social And Health Services |
Alpha Supported Living Services |
$55,478,673.26 |
Washington State Checkbook |
| 2023 |
Health Care Authority |
Dshs Aging Adult Sv Admin Hq |
$55,461,327.75 |
Washington State Checkbook |
| 2020 |
Washington State Checkbook |
Regence Blueshield |
$55,274,463.47 |
Washington State Checkbook |
| 2018 |
Health Care Authority |
Multicare Health System |
$54,800,332.99 |
Washington State Checkbook |
| 2021 |
Washington State Checkbook |
Korean Womens Association |
$54,684,436.94 |
Washington State Checkbook |
| 2021 |
Washington State Checkbook |
Ambitions Of Washington |
$54,544,300.44 |
Washington State Checkbook |
| 2019 |
Washington State Checkbook |
Kitsap County |
$54,453,434.11 |
Washington State Checkbook |
| 2020 |
Washington State Checkbook |
Puyallup School Dist 3 |
$54,439,546.40 |
Washington State Checkbook |
| 2025 |
Children, Youth, And Families |
Puget Sound Educ Svc Dist 121 |
$54,431,804.24 |
Washington State Checkbook |
| 2025 |
Recreation And Conservation Office |
Dfw General Account |
$54,337,135.06 |
Washington State Checkbook |
| 2024 |
Transportation |
Rainier Inc |
$54,232,328.11 |
Washington State Checkbook |
| 2023 |
Health Care Authority |
Beacon Health Options Inc |
$54,231,687.59 |
Washington State Checkbook |
| 2020 |
Washington State Checkbook |
Catholic Community Services Of W |
$53,645,873.42 |
Washington State Checkbook |
| 2022 |
Washington State Checkbook |
Seattle City Of Human Services |
$53,622,407.43 |
Washington State Checkbook |
| 2018 |
Social And Health Services |
Aacres Wa Llc |
$53,603,748.05 |
Washington State Checkbook |
| 2024 |
Transportation |
Central Washington Asphalt Inc |
$53,490,939.28 |
Washington State Checkbook |
| 2025 |
Social And Health Services |
Dungarvin Washington Supported L |
$53,376,713.03 |
Washington State Checkbook |
| 2023 |
Children, Youth, And Families |
Atg Legal Svcs |
$53,257,673.54 |
Washington State Checkbook |
| 2022 |
Washington State Checkbook |
Cts Services |
$53,254,328.74 |
Washington State Checkbook |
| 2021 |
Washington State Checkbook |
King Co Housing & Comm Dev |
$53,120,784.50 |
Washington State Checkbook |
| 2022 |
Washington State Checkbook |
Sister's Of Providence - Provide |
$52,905,421.11 |
Washington State Checkbook |
| 2018 |
Health Care Authority |
Great Rivers Behavioral Health O |
$52,895,925.16 |
Washington State Checkbook |
| 2018 |
Transportation |
Us Bank Purchasing Card Program |
$52,894,708.95 |
Washington State Checkbook |
| 2023 |
Transportation |
Flatiron West Inc The Lane Const |
$52,769,179.84 |
Washington State Checkbook |
| 2024 |
Social And Health Services |
Kyndryl Inc |
$52,747,529.78 |
Washington State Checkbook |
| 2025 |
Social And Health Services |
King County |
$52,734,264.22 |
Washington State Checkbook |
| 2017 |
Department Of Transportation |
Us Bank Purchasing Card Program |
$52,686,000.42 |
Washington State Checkbook |
| 2018 |
Transportation |
Granite Construction Company |
$52,517,677.30 |
Washington State Checkbook |
| 2019 |
Washington State Checkbook |
Thurston County |
$52,385,764.20 |
Washington State Checkbook |
| 2022 |
Washington State Checkbook |
King County |
$52,320,674.77 |
Washington State Checkbook |
| 2022 |
Washington State Checkbook |
Hoffman-Pacific A Jv |
$52,227,593.01 |
Washington State Checkbook |
| 2019 |
Washington State Checkbook |
Regence Blueshield |
$52,109,404.03 |
Washington State Checkbook |
| 2025 |
Transportation |
Hntb Corp |
$52,062,512.24 |
Washington State Checkbook |
| 2019 |
Washington State Checkbook |
Swedish Health Services |
$52,049,395.72 |
Washington State Checkbook |
| 2018 |
Transportation |
Seattle Tunnel Partners Jv |
$51,914,915.62 |
Washington State Checkbook |
| 2021 |
Washington State Checkbook |
Seattle City Of Human Services |
$51,893,760.31 |
Washington State Checkbook |
| 2024 |
Health |
Merck Sharp And Dohme Corp |
$51,828,081.71 |
Washington State Checkbook |
| 2021 |
Washington State Checkbook |
King County |
$51,625,320.92 |
Washington State Checkbook |
| 2023 |
Social And Health Services |
Alpha Supported Living Services |
$51,122,447.76 |
Washington State Checkbook |
| 2021 |
Washington State Checkbook |
Stillaguamish Tribe Of Indians |
$50,968,090.03 |
Washington State Checkbook |
| 2018 |
Corrections |
Doc Correctional Industries |
$50,895,275.17 |
Washington State Checkbook |
| 2023 |
Transportation |
Scarsella Bros Inc |
$50,824,625.18 |
Washington State Checkbook |
| 2024 |
Health Care Authority |
Sea-Mar Community Health Center |
$50,804,496.38 |
Washington State Checkbook |
| 2017 |
Wash State Health Care Authority |
Seattle Childrens Hospital |
$50,748,083.98 |
Washington State Checkbook |
| 2025 |
Health Care Authority |
Yakima Valley Farm Workers Clini |
$50,633,813.97 |
Washington State Checkbook |
| 2017 |
Department Of Corrections |
Doc Correctional Industries |
$50,428,678.78 |
Washington State Checkbook |
| 2018 |
Health Care Authority |
Coordinated Care Of Wa Inc |
$50,214,153.95 |
Washington State Checkbook |
| 2020 |
Washington State Checkbook |
Sea-Mar Community Health Center |
$50,147,750.38 |
Washington State Checkbook |
| 2023 |
Military Department |
King Co Roads Division |
$50,073,410.66 |
Washington State Checkbook |
| 2024 |
Social And Health Services |
Dungarvin Washington Supported L |
$50,067,928.36 |
Washington State Checkbook |