| Year |
Employer |
Vendor Name |
Amount |
Source |
| 2025 |
Health |
Ramsell Corporation |
$16,144,468.92 |
Washington State Checkbook |
| 2022 |
Corrections |
American Behavioral Health Sys |
$16,133,191.31 |
Washington State Checkbook |
| 2024 |
Commerce |
King County Regional Homelessnes |
$16,130,861.43 |
Washington State Checkbook |
| 2022 |
Health Care Authority |
Swinomish Indian Tribal Communit |
$16,125,787.24 |
Washington State Checkbook |
| 2020 |
Social And Health Services |
Rehabco, Inc. |
$16,109,102.44 |
Washington State Checkbook |
| 2023 |
Children, Youth, And Families |
Pierce County Budget & Finance |
$16,105,507.04 |
Washington State Checkbook |
| 2023 |
Children, Youth, And Families |
Us Bank Purchasing Card Program |
$16,104,389.12 |
Washington State Checkbook |
| 2024 |
Children, Youth, And Families |
Dshs Fso Interagency |
$16,103,464.46 |
Washington State Checkbook |
| 2017 |
Department Of Corrections |
Des Risk Mgmt Self Insur Claim |
$16,102,244.00 |
Washington State Checkbook |
| 2016 |
Corrections |
Des Risk Mgmt Self Insur Claim |
$16,102,244.00 |
Washington State Checkbook |
| 2022 |
Public Schools |
Summit Public Schools Wash |
$16,093,680.50 |
Washington State Checkbook |
| 2025 |
Transportation |
Central Puget Sound Transit Auth |
$16,090,527.21 |
Washington State Checkbook |
| 2024 |
Social And Health Services |
Transitional Care Snf Operations |
$16,084,682.81 |
Washington State Checkbook |
| 2019 |
Public Schools |
White River School Dist 416 |
$16,083,953.63 |
Washington State Checkbook |
| 2020 |
Health Care Authority |
Clallam County Public Hospital D |
$16,080,546.61 |
Washington State Checkbook |
| 2024 |
Social And Health Services |
Northwest Supported Living Inc. |
$16,071,903.15 |
Washington State Checkbook |
| 2025 |
Health Care Authority |
Neighborcare Health |
$16,066,001.23 |
Washington State Checkbook |
| 2018 |
Health |
Lifelong Aids Alliance |
$16,056,981.16 |
Washington State Checkbook |
| 2019 |
Corrections |
Sbctc Fund 001 |
$16,051,037.78 |
Washington State Checkbook |
| 2016 |
Commerce |
King Co Housing & Comm Dev |
$16,014,725.19 |
Washington State Checkbook |
| 2020 |
Ecology |
King Co Natural Resources |
$15,988,613.50 |
Washington State Checkbook |
| 2022 |
Social And Health Services |
Full Life Care |
$15,944,132.96 |
Washington State Checkbook |
| 2022 |
Health Care Authority |
American Medical Response Ambula |
$15,943,969.36 |
Washington State Checkbook |
| 2022 |
Children, Youth, And Families |
Spokane Regional Health Dist |
$15,941,123.57 |
Washington State Checkbook |
| 2025 |
Public Schools |
Washington School Principals Edu |
$15,937,665.71 |
Washington State Checkbook |
| 2023 |
Social And Health Services |
Maksu, Inc. |
$15,933,650.80 |
Washington State Checkbook |
| 2025 |
Health Care Authority |
Spokane County |
$15,920,682.68 |
Washington State Checkbook |
| 2020 |
Health |
Lifelong Aids Alliance |
$15,918,604.49 |
Washington State Checkbook |
| 2022 |
Social And Health Services |
Beneficial In-Home Care, Inc. |
$15,912,202.29 |
Washington State Checkbook |
| 2019 |
Ecology |
Oak Harbor City Of |
$15,908,331.69 |
Washington State Checkbook |
| 2017 |
Wash State Health Care Authority |
Yakima Valley Memorial Hospital |
$15,905,713.53 |
Washington State Checkbook |
| 2019 |
Transportation |
Electronic Transaction Consult |
$15,889,920.46 |
Washington State Checkbook |
| 2019 |
Health Care Authority |
Assoc Of University Physicians |
$15,889,378.02 |
Washington State Checkbook |
| 2017 |
Wash State Health Care Authority |
Kadlec Regional Medical Center |
$15,889,088.61 |
Washington State Checkbook |
| 2016 |
Health Care Authority |
Healthpoint |
$15,878,541.11 |
Washington State Checkbook |
| 2023 |
Commerce |
Benton County Human Services |
$15,862,356.67 |
Washington State Checkbook |
| 2020 |
Enterprise Services |
Alliant Insurance Services Inc |
$15,859,906.85 |
Washington State Checkbook |
| 2022 |
Health |
Discovery Health Md Pllc |
$15,854,531.36 |
Washington State Checkbook |
| 2017 |
Wash State Health Care Authority |
Kennewick Public Hospital Distri |
$15,852,919.25 |
Washington State Checkbook |
| 2018 |
Social And Health Services |
Cts Services |
$15,844,983.76 |
Washington State Checkbook |
| 2021 |
Social And Health Services |
Pease Construction Inc |
$15,844,738.59 |
Washington State Checkbook |
| 2019 |
Health |
Public Health Service Bureau |
$15,837,266.71 |
Washington State Checkbook |
| 2019 |
Social And Health Services |
Amicable Health Care |
$15,835,508.49 |
Washington State Checkbook |
| 2017 |
Dept Of Social And Health Services |
Evergreen Washington Healthcare |
$15,835,118.49 |
Washington State Checkbook |
| 2018 |
Social And Health Services |
Beneficial In-Home Care, Inc. |
$15,832,982.38 |
Washington State Checkbook |
| 2022 |
Corrections |
Us Bank Purchasing Card Program |
$15,822,629.59 |
Washington State Checkbook |
| 2024 |
Social And Health Services |
Full Life Care |
$15,816,299.22 |
Washington State Checkbook |
| 2025 |
Health |
Sanofi Pasteur Inc |
$15,802,605.55 |
Washington State Checkbook |
| 2020 |
Health Care Authority |
Assoc Of University Physicians |
$15,798,045.55 |
Washington State Checkbook |
| 2024 |
Transportation |
Combined Construction Inc |
$15,782,807.43 |
Washington State Checkbook |
| 2017 |
Department Of Transportation |
Electronic Transaction Consult |
$15,764,758.02 |
Washington State Checkbook |
| 2025 |
Health Care Authority |
Muckleshoot Indian Tribe |
$15,758,466.74 |
Washington State Checkbook |
| 2017 |
Supt Of Public Instruction |
Clover Park School Dist 400 |
$15,757,082.48 |
Washington State Checkbook |
| 2021 |
Health Care Authority |
Virginia Mason Medical Center |
$15,754,624.73 |
Washington State Checkbook |
| 2023 |
Social And Health Services |
Volunteers Of America Western Wa |
$15,748,069.37 |
Washington State Checkbook |
| 2016 |
Social And Health Services |
Alpha Supported Living Services |
$15,735,870.18 |
Washington State Checkbook |
| 2018 |
Social And Health Services |
Senior Life Resources Northwest, |
$15,727,955.67 |
Washington State Checkbook |
| 2024 |
Transportation |
Benton-Franklin Public Transport |
$15,684,689.69 |
Washington State Checkbook |
| 2020 |
Health Care Authority |
Healthpoint |
$15,674,794.65 |
Washington State Checkbook |
| 2022 |
Ecology |
Bureau Of Reclamation |
$15,672,637.17 |
Washington State Checkbook |
| 2023 |
Social And Health Services |
Integrated Living Services |
$15,672,253.64 |
Washington State Checkbook |
| 2023 |
Social And Health Services |
Accenture Llp |
$15,671,148.00 |
Washington State Checkbook |
| 2024 |
Corrections |
Us Bank Purchasing Card Program |
$15,670,691.16 |
Washington State Checkbook |
| 2018 |
Corrections |
Sbctc Fund 001 |
$15,637,234.58 |
Washington State Checkbook |
| 2018 |
Health Care Authority |
King County Public Hospital Dist |
$15,620,116.05 |
Washington State Checkbook |
| 2021 |
Military Department |
Pease Construction Inc |
$15,611,101.78 |
Washington State Checkbook |
| 2023 |
Health Care Authority |
Telecare Mental Health Services |
$15,608,786.46 |
Washington State Checkbook |
| 2024 |
Health Care Authority |
Kitsap County Human Services |
$15,596,941.09 |
Washington State Checkbook |
| 2020 |
Health Care Authority |
Virginia Mason Medical Center |
$15,582,872.31 |
Washington State Checkbook |
| 2023 |
Public Schools |
Seattle School Dist 1 |
$15,578,088.71 |
Washington State Checkbook |
| 2020 |
Social And Health Services |
Aging & Long Term Care Of |
$15,569,753.17 |
Washington State Checkbook |
| 2025 |
Commerce |
Nisqually Indian Tribe |
$15,569,326.62 |
Washington State Checkbook |
| 2017 |
Dept Of Social And Health Services |
Community Living |
$15,537,468.54 |
Washington State Checkbook |
| 2022 |
Corrections |
Hca Admin Accounting |
$15,533,673.90 |
Washington State Checkbook |
| 2024 |
Health Care Authority |
Thurston Mason Behav Health Org |
$15,528,558.93 |
Washington State Checkbook |
| 2020 |
Social And Health Services |
Consolidated Resources Health Ca |
$15,501,266.14 |
Washington State Checkbook |
| 2020 |
Public Schools |
Central Kitsap School Dist 401 |
$15,501,171.25 |
Washington State Checkbook |
| 2023 |
Health |
Sanofi Pasteur Inc |
$15,499,872.55 |
Washington State Checkbook |
| 2023 |
Social And Health Services |
Full Life Care |
$15,483,333.56 |
Washington State Checkbook |
| 2021 |
Commerce |
Dshs Economic Svs Hq |
$15,474,575.56 |
Washington State Checkbook |
| 2022 |
Social And Health Services |
Provail |
$15,461,246.82 |
Washington State Checkbook |
| 2021 |
Social And Health Services |
Snohomish County Division On |
$15,456,537.72 |
Washington State Checkbook |
| 2020 |
Health Care Authority |
Peacehealth Southwest Medical Ce |
$15,440,860.38 |
Washington State Checkbook |
| 2023 |
Children, Youth, And Families |
Uw-Grant & Contract Accounting |
$15,439,434.13 |
Washington State Checkbook |
| 2018 |
Social And Health Services |
Esd General Fund Account |
$15,429,250.83 |
Washington State Checkbook |
| 2024 |
Social And Health Services |
Kin On Health Care Center |
$15,420,136.47 |
Washington State Checkbook |
| 2024 |
Health Care Authority |
Neighborcare Health |
$15,418,404.73 |
Washington State Checkbook |
| 2025 |
Corrections |
State Board For Community & Tech |
$15,406,508.09 |
Washington State Checkbook |
| 2024 |
Social And Health Services |
Volunteers Of America Western Wa |
$15,396,703.37 |
Washington State Checkbook |
| 2016 |
Social And Health Services |
Cts Services |
$15,395,129.02 |
Washington State Checkbook |
| 2025 |
Children, Youth, And Families |
King Co Finance |
$15,390,916.43 |
Washington State Checkbook |
| 2024 |
Social And Health Services |
Esd General Fund Account |
$15,382,655.08 |
Washington State Checkbook |
| 2025 |
Health Care Authority |
Milliman Inc |
$15,381,767.40 |
Washington State Checkbook |
| 2020 |
Public Schools |
Federal Way Public Schools |
$15,379,716.52 |
Washington State Checkbook |
| 2021 |
Health |
Lifelong Aids Alliance |
$15,375,915.09 |
Washington State Checkbook |
| 2021 |
Social And Health Services |
Life Force Services Inc. |
$15,373,028.25 |
Washington State Checkbook |
| 2024 |
Social And Health Services |
Life Force Services Inc. |
$15,368,929.91 |
Washington State Checkbook |
| 2024 |
Enterprise Services |
University Mechanical Contractor |
$15,352,131.90 |
Washington State Checkbook |
| 2024 |
Social And Health Services |
Shi International Corp |
$15,350,297.35 |
Washington State Checkbook |
| 2024 |
Children, Youth, And Families |
Reliable Enterprises |
$15,338,710.34 |
Washington State Checkbook |