| Year |
Employer |
Vendor Name |
Amount |
Source |
| 2024 |
Transportation |
Kapsch Trafficcom Usa Inc |
$11,542,616.07 |
Washington State Checkbook |
| 2016 |
Social And Health Services |
Thornburg Computer Services Llc |
$11,539,803.70 |
Washington State Checkbook |
| 2024 |
Financial Management |
Deloitte Consulting Llp |
$11,536,672.82 |
Washington State Checkbook |
| 2023 |
Corrections |
Des Risk Mgmt Self Insur Claim |
$11,533,741.00 |
Washington State Checkbook |
| 2019 |
Public Schools |
Lake Stevens School Dist #4 |
$11,532,793.52 |
Washington State Checkbook |
| 2020 |
Corrections |
Us Bank Purchasing Card Program |
$11,531,564.87 |
Washington State Checkbook |
| 2018 |
Health Care Authority |
Virginia Mason Medical Center |
$11,511,650.33 |
Washington State Checkbook |
| 2025 |
Health Care Authority |
Pnw Pace Partners Llc |
$11,510,077.41 |
Washington State Checkbook |
| 2023 |
Social And Health Services |
Elite Home Care |
$11,507,262.38 |
Washington State Checkbook |
| 2025 |
Social And Health Services |
Exceptional Foresters, Inc |
$11,506,257.57 |
Washington State Checkbook |
| 2024 |
Transportation |
Transcore Lp |
$11,505,499.80 |
Washington State Checkbook |
| 2017 |
Dept Of Social And Health Services |
Aging & Long Term Care Of |
$11,496,284.27 |
Washington State Checkbook |
| 2025 |
Social And Health Services |
Maxim Healthcare Services |
$11,488,738.56 |
Washington State Checkbook |
| 2024 |
Commerce |
Compass Health |
$11,481,657.62 |
Washington State Checkbook |
| 2025 |
Health Care Authority |
Jamestown Sklallam Tribe |
$11,471,745.02 |
Washington State Checkbook |
| 2018 |
Social And Health Services |
Bethany Of The Northwest |
$11,470,007.64 |
Washington State Checkbook |
| 2022 |
Children, Youth, And Families |
Us Bank Purchasing Card Program |
$11,468,132.09 |
Washington State Checkbook |
| 2025 |
Financial Management |
Workday Inc |
$11,465,638.91 |
Washington State Checkbook |
| 2017 |
Military Department |
Us Bank Purchasing Card Program |
$11,463,558.89 |
Washington State Checkbook |
| 2018 |
Public Schools |
Nooksack Valley School District |
$11,452,683.97 |
Washington State Checkbook |
| 2017 |
Supt Of Public Instruction |
Spokane Public School Dist 81 |
$11,448,069.42 |
Washington State Checkbook |
| 2022 |
Health Care Authority |
Thurston Mason Behav Health Org |
$11,447,957.88 |
Washington State Checkbook |
| 2025 |
Military Department |
Telecommunication Systems Inc |
$11,443,944.91 |
Washington State Checkbook |
| 2022 |
Social And Health Services |
Kitsap Tenant Support Services I |
$11,442,625.49 |
Washington State Checkbook |
| 2019 |
Health |
Sanofi Pasteur Inc |
$11,442,431.39 |
Washington State Checkbook |
| 2023 |
Social And Health Services |
Living In Fullfilling Environmen |
$11,437,746.81 |
Washington State Checkbook |
| 2024 |
Social And Health Services |
Arris Health Services Llc |
$11,436,262.00 |
Washington State Checkbook |
| 2021 |
Transportation |
Ps Business Parks Lp |
$11,435,000.00 |
Washington State Checkbook |
| 2025 |
Health |
Shi International Corp |
$11,419,041.90 |
Washington State Checkbook |
| 2016 |
Social And Health Services |
Aging & Long Term Care Of |
$11,412,600.44 |
Washington State Checkbook |
| 2020 |
Transportation |
Na Degerstrom Inc |
$11,412,213.62 |
Washington State Checkbook |
| 2024 |
Public Schools |
Central Kitsap School Dist 401 |
$11,410,928.36 |
Washington State Checkbook |
| 2025 |
Social And Health Services |
Another Option Inc |
$11,403,583.56 |
Washington State Checkbook |
| 2018 |
Public Schools |
Lakewood School District 306 |
$11,402,063.21 |
Washington State Checkbook |
| 2020 |
Health Care Authority |
Puyallup Tribal Health Authority |
$11,399,900.45 |
Washington State Checkbook |
| 2018 |
Social And Health Services |
Consolidated Resources Health Ca |
$11,396,654.50 |
Washington State Checkbook |
| 2023 |
Children, Youth, And Families |
Imagine Institute The |
$11,387,307.61 |
Washington State Checkbook |
| 2025 |
Social And Health Services |
Cts Services |
$11,385,435.25 |
Washington State Checkbook |
| 2023 |
Health Care Authority |
Tulalip Tribes Of Washington |
$11,384,870.43 |
Washington State Checkbook |
| 2019 |
Corrections |
Hca Admin Accounting |
$11,382,103.97 |
Washington State Checkbook |
| 2017 |
Department Of Transportation |
Lynden Incorporated |
$11,366,674.65 |
Washington State Checkbook |
| 2020 |
Health Care Authority |
Thurston Mason Behav Health Org |
$11,363,195.64 |
Washington State Checkbook |
| 2022 |
Health Care Authority |
Telecare Mental Health Services |
$11,337,675.98 |
Washington State Checkbook |
| 2022 |
Social And Health Services |
Elite Home Care |
$11,333,929.19 |
Washington State Checkbook |
| 2020 |
Health Care Authority |
Oregon Health Sciences Univ |
$11,332,869.79 |
Washington State Checkbook |
| 2024 |
Social And Health Services |
Wcc Operator Llc |
$11,319,602.33 |
Washington State Checkbook |
| 2019 |
Military Department |
Us Bank Purchasing Card Program |
$11,317,629.56 |
Washington State Checkbook |
| 2019 |
Transportation |
Bnsf Railway Company |
$11,310,066.02 |
Washington State Checkbook |
| 2019 |
Transportation |
Mott Macdonald Group Inc |
$11,306,045.52 |
Washington State Checkbook |
| 2021 |
Health Care Authority |
Columbia Basin Health Associatio |
$11,303,503.96 |
Washington State Checkbook |
| 2016 |
Social And Health Services |
Cowlitz County - Aging Disabilit |
$11,300,651.84 |
Washington State Checkbook |
| 2025 |
Commerce |
Office Of Civil Legal Aid |
$11,299,050.71 |
Washington State Checkbook |
| 2025 |
Commerce |
Volunteers Of America-Western Wa |
$11,296,941.67 |
Washington State Checkbook |
| 2017 |
Dept Of Social And Health Services |
Advanced Lifeline Services Inc |
$11,294,393.00 |
Washington State Checkbook |
| 2025 |
Health Care Authority |
Squaxin Island Health Clinic |
$11,289,751.33 |
Washington State Checkbook |
| 2024 |
Transportation |
Hoffman-Pacific A Jv |
$11,286,162.01 |
Washington State Checkbook |
| 2022 |
Health Care Authority |
Columbia Basin Health Associatio |
$11,283,967.98 |
Washington State Checkbook |
| 2021 |
Public Schools |
Yakima County 200 School Dist |
$11,280,572.39 |
Washington State Checkbook |
| 2025 |
Commerce |
Kittitas County |
$11,278,274.14 |
Washington State Checkbook |
| 2024 |
Health |
Ramsell Corporation |
$11,276,459.24 |
Washington State Checkbook |
| 2021 |
Commerce |
Downtown Emergency Service Ctr |
$11,268,592.97 |
Washington State Checkbook |
| 2016 |
Health Care Authority |
Samaritan Hosp - Moses Lake |
$11,255,566.97 |
Washington State Checkbook |
| 2017 |
Department Of Labor And Industries |
Providence Health And Services |
$11,245,322.97 |
Washington State Checkbook |
| 2025 |
Children, Youth, And Families |
Educational Service District 112 |
$11,241,749.16 |
Washington State Checkbook |
| 2023 |
Social And Health Services |
Pierce County |
$11,236,390.43 |
Washington State Checkbook |
| 2023 |
Social And Health Services |
Bd Tacoma I, Llc |
$11,234,460.12 |
Washington State Checkbook |
| 2021 |
Public Schools |
Cambium Assessment Inc |
$11,234,206.00 |
Washington State Checkbook |
| 2019 |
Social And Health Services |
Frey, Thomas Edward |
$11,230,072.75 |
Washington State Checkbook |
| 2020 |
Social And Health Services |
Dor Excise Tax |
$11,227,211.12 |
Washington State Checkbook |
| 2016 |
Ecology |
Port Angeles City Of |
$11,221,904.50 |
Washington State Checkbook |
| 2017 |
Department Of Enterprise Services |
Alliant Insurance Services Inc |
$11,219,972.49 |
Washington State Checkbook |
| 2020 |
Social And Health Services |
Bethany Of The Northwest |
$11,215,966.78 |
Washington State Checkbook |
| 2016 |
Enterprise Services |
Alliant Insurance Services Inc |
$11,212,934.99 |
Washington State Checkbook |
| 2019 |
Transportation |
Snohomish Co Public Transit Ben |
$11,202,866.00 |
Washington State Checkbook |
| 2017 |
Wa St Criminal Justice Train Comm |
Washington Association Of |
$11,200,443.94 |
Washington State Checkbook |
| 2019 |
Health Care Authority |
Cowlitz Indian Tribe |
$11,191,229.83 |
Washington State Checkbook |
| 2021 |
Military Department |
Telecommunication Systems Inc |
$11,182,573.60 |
Washington State Checkbook |
| 2025 |
Social And Health Services |
A & B Home Care And Staffing Inc |
$11,180,125.55 |
Washington State Checkbook |
| 2024 |
Social And Health Services |
Exceptional Foresters, Inc |
$11,173,068.80 |
Washington State Checkbook |
| 2021 |
Commerce |
Spokane Co Community Svc |
$11,168,045.81 |
Washington State Checkbook |
| 2022 |
Health |
Yakima Health District |
$11,167,664.97 |
Washington State Checkbook |
| 2023 |
Children, Youth, And Families |
Wash St Comm Colleges Dist 17 |
$11,166,763.59 |
Washington State Checkbook |
| 2016 |
Health Care Authority |
Harrison Medical Center |
$11,166,413.62 |
Washington State Checkbook |
| 2024 |
Commerce |
Avista Corp |
$11,161,776.65 |
Washington State Checkbook |
| 2021 |
Public Schools |
White River School Dist 416 |
$11,158,265.82 |
Washington State Checkbook |
| 2017 |
Department Of Transportation |
Jacobs Engineering Group Inc |
$11,157,470.51 |
Washington State Checkbook |
| 2017 |
Department Of Corrections |
Us Bank Purchasing Card Program |
$11,155,142.04 |
Washington State Checkbook |
| 2021 |
Public Schools |
Lake Stevens School Dist #4 |
$11,151,946.57 |
Washington State Checkbook |
| 2021 |
Social And Health Services |
Life Works |
$11,150,866.09 |
Washington State Checkbook |
| 2021 |
Social And Health Services |
Hca Admin Accounting |
$11,147,735.97 |
Washington State Checkbook |
| 2022 |
Public Schools |
Lake Washington School Dist 414 |
$11,144,079.42 |
Washington State Checkbook |
| 2022 |
Social And Health Services |
Bethany Of The Northwest |
$11,128,061.00 |
Washington State Checkbook |
| 2017 |
Wash State Health Care Authority |
International Community Health S |
$11,122,868.78 |
Washington State Checkbook |
| 2025 |
Health |
Crisis Connection |
$11,121,314.46 |
Washington State Checkbook |
| 2025 |
Transportation |
Orion Marine Contractors Inc |
$11,114,721.82 |
Washington State Checkbook |
| 2023 |
Social And Health Services |
Cascade Connections |
$11,112,019.80 |
Washington State Checkbook |
| 2020 |
Social And Health Services |
Volunteers Of America Western Wa |
$11,108,821.28 |
Washington State Checkbook |
| 2022 |
Corrections |
Des Risk Mgmt Self Insur Claim |
$11,100,763.00 |
Washington State Checkbook |
| 2022 |
Transportation |
Des Risk Mgmt Division |
$11,097,297.01 |
Washington State Checkbook |
| 2025 |
Employment Security Department |
Tacoma-Pierce Co Empl & Training |
$11,096,908.33 |
Washington State Checkbook |