| Year |
Employer |
Vendor Name |
Amount |
Source |
| 2025 |
Social And Health Services |
Community Living |
$29,372,377.97 |
Washington State Checkbook |
| 2018 |
Transportation |
Lakeside Industries Inc |
$29,361,051.77 |
Washington State Checkbook |
| 2021 |
Health |
Northwest Pathology Ps |
$29,358,487.00 |
Washington State Checkbook |
| 2025 |
Social And Health Services |
Rehabco, Inc. |
$29,342,676.35 |
Washington State Checkbook |
| 2023 |
Social And Health Services |
Senior Life Resources Northwest, |
$29,335,481.06 |
Washington State Checkbook |
| 2019 |
Transportation |
Lakeside Industries Inc |
$29,277,651.53 |
Washington State Checkbook |
| 2023 |
Labor And Industries |
Atg Legal Svcs |
$29,259,924.58 |
Washington State Checkbook |
| 2022 |
Public Schools |
Spokane Public School Dist 81 |
$29,094,909.17 |
Washington State Checkbook |
| 2024 |
Social And Health Services |
Sunrise Services Inc. |
$29,065,009.90 |
Washington State Checkbook |
| 2019 |
Transportation |
Liberty Maintenance Inc |
$29,038,010.54 |
Washington State Checkbook |
| 2021 |
Health |
Colehour & Cohen Inc |
$29,012,129.35 |
Washington State Checkbook |
| 2019 |
Social And Health Services |
International Business Machines |
$28,985,792.02 |
Washington State Checkbook |
| 2024 |
Social And Health Services |
Community Living |
$28,926,603.01 |
Washington State Checkbook |
| 2024 |
Social And Health Services |
Hoffman Construction Company Of |
$28,907,841.28 |
Washington State Checkbook |
| 2019 |
Health |
King Co Public Health |
$28,846,187.80 |
Washington State Checkbook |
| 2022 |
Social And Health Services |
Hope Human Services Llc |
$28,845,309.30 |
Washington State Checkbook |
| 2021 |
Social And Health Services |
Sunrise Services Inc. |
$28,818,485.73 |
Washington State Checkbook |
| 2023 |
Social And Health Services |
Sunrise Services Inc. |
$28,766,094.24 |
Washington State Checkbook |
| 2023 |
Corrections |
American Behavioral Health Sys |
$28,601,646.12 |
Washington State Checkbook |
| 2023 |
Social And Health Services |
Community Living |
$28,554,563.57 |
Washington State Checkbook |
| 2025 |
Health Care Authority |
Greater Columbia Behavioral Hlth |
$28,548,526.45 |
Washington State Checkbook |
| 2025 |
Health Care Authority |
Community Health Center Of Snoho |
$28,528,000.48 |
Washington State Checkbook |
| 2024 |
Social And Health Services |
Medefis Inc |
$28,473,231.44 |
Washington State Checkbook |
| 2019 |
Health Care Authority |
Bloodworks |
$28,468,410.58 |
Washington State Checkbook |
| 2019 |
Children, Youth, And Families |
Puget Sound Educ Svc Dist 121 |
$28,455,742.60 |
Washington State Checkbook |
| 2025 |
Transportation |
Midmountain Contractors Inc |
$28,426,916.68 |
Washington State Checkbook |
| 2021 |
Health Care Authority |
Swinomish Indian Tribal Communit |
$28,424,556.98 |
Washington State Checkbook |
| 2025 |
Health Care Authority |
Peacehealth |
$28,421,028.26 |
Washington State Checkbook |
| 2017 |
Wash State Health Care Authority |
Bloodworks |
$28,405,340.50 |
Washington State Checkbook |
| 2022 |
Transportation |
Central Washington Asphalt Inc |
$28,377,532.33 |
Washington State Checkbook |
| 2018 |
Social And Health Services |
Sl Start And Associates Llc |
$28,345,864.52 |
Washington State Checkbook |
| 2016 |
Health Care Authority |
Providence Health And Services |
$28,284,665.75 |
Washington State Checkbook |
| 2016 |
Transportation |
Rainier Inc |
$28,233,543.17 |
Washington State Checkbook |
| 2021 |
Transportation |
Wsp Usa Inc |
$28,228,618.68 |
Washington State Checkbook |
| 2020 |
Public Schools |
Centralia School Dist No 401 |
$28,201,520.36 |
Washington State Checkbook |
| 2023 |
Social And Health Services |
Evergreen Washington Healthcare |
$28,186,804.27 |
Washington State Checkbook |
| 2022 |
Children, Youth, And Families |
Washington State Child Care Res |
$28,147,298.46 |
Washington State Checkbook |
| 2025 |
Commerce |
Pierce County |
$28,122,467.07 |
Washington State Checkbook |
| 2021 |
Labor And Industries |
Atg Legal Svcs |
$28,054,000.11 |
Washington State Checkbook |
| 2023 |
Enterprise Services |
Alliant Insurance Services Inc |
$28,039,717.11 |
Washington State Checkbook |
| 2020 |
Health Care Authority |
North Sound Behavioral Hlth Org |
$27,996,329.19 |
Washington State Checkbook |
| 2020 |
Social And Health Services |
Addus Healthcare Inc. |
$27,976,813.61 |
Washington State Checkbook |
| 2017 |
Dept Of Social And Health Services |
Chesterfield Services Inc |
$27,903,823.25 |
Washington State Checkbook |
| 2021 |
Commerce |
Pierce County Housing Programs |
$27,888,287.40 |
Washington State Checkbook |
| 2023 |
Social And Health Services |
Amicable Health Care |
$27,824,484.66 |
Washington State Checkbook |
| 2019 |
Health Care Authority |
Providence Health And Srvs Wa |
$27,766,066.17 |
Washington State Checkbook |
| 2020 |
Social And Health Services |
Sbctc Fund 001 |
$27,746,185.94 |
Washington State Checkbook |
| 2024 |
Transportation |
National Railroad Passenger Corp |
$27,688,923.49 |
Washington State Checkbook |
| 2024 |
Health Care Authority |
Community Health Center Of Snoho |
$27,679,939.35 |
Washington State Checkbook |
| 2023 |
Health Care Authority |
Healthpoint |
$27,673,235.00 |
Washington State Checkbook |
| 2019 |
Social And Health Services |
Sbctc Fund 001 |
$27,610,225.89 |
Washington State Checkbook |
| 2017 |
Department Of Early Learning (Del) |
Puget Sound Educ Svc Dist 121 |
$27,590,380.20 |
Washington State Checkbook |
| 2018 |
Health Care Authority |
Bloodworks |
$27,571,664.08 |
Washington State Checkbook |
| 2024 |
Ecology |
Rcfb Capital Projects |
$27,513,038.17 |
Washington State Checkbook |
| 2019 |
Transportation |
Imco General Construction Inc |
$27,494,012.02 |
Washington State Checkbook |
| 2024 |
Social And Health Services |
Rehabco, Inc. |
$27,490,951.93 |
Washington State Checkbook |
| 2025 |
Commerce |
Compass Health |
$27,482,120.66 |
Washington State Checkbook |
| 2023 |
Transportation |
Shamrock Paving Inc |
$27,475,281.90 |
Washington State Checkbook |
| 2024 |
Health Care Authority |
Spokane Co Community Svc |
$27,413,750.59 |
Washington State Checkbook |
| 2024 |
Transportation |
Northup Constructors |
$27,405,825.62 |
Washington State Checkbook |
| 2024 |
Health Care Authority |
Greater Columbia Behavioral Hlth |
$27,377,785.20 |
Washington State Checkbook |
| 2024 |
Social And Health Services |
Clark Construction Group Llc |
$27,372,941.92 |
Washington State Checkbook |
| 2021 |
Social And Health Services |
King County |
$27,362,373.88 |
Washington State Checkbook |
| 2022 |
Social And Health Services |
Sunrise Services Inc. |
$27,346,647.62 |
Washington State Checkbook |
| 2022 |
Ecology |
Rcfb Capital Projects |
$27,339,428.50 |
Washington State Checkbook |
| 2018 |
Social And Health Services |
University Of Washington |
$27,327,167.88 |
Washington State Checkbook |
| 2025 |
Social And Health Services |
Southeast Wa Aging & Long Term |
$27,300,201.24 |
Washington State Checkbook |
| 2021 |
Transportation |
Rainier Inc |
$27,299,973.58 |
Washington State Checkbook |
| 2016 |
Health Care Authority |
Providence Health And Srvs Wa |
$27,262,600.10 |
Washington State Checkbook |
| 2023 |
Transportation |
King Co Metro |
$27,218,689.43 |
Washington State Checkbook |
| 2021 |
Public Schools |
Shoreline School Dist |
$27,148,876.74 |
Washington State Checkbook |
| 2023 |
Commerce |
Thurston County |
$27,132,777.74 |
Washington State Checkbook |
| 2022 |
Social And Health Services |
Senior Life Resources Northwest, |
$27,046,938.15 |
Washington State Checkbook |
| 2020 |
Transportation |
Hntb Corp |
$27,044,030.44 |
Washington State Checkbook |
| 2020 |
Public Schools |
American Institutes For Research |
$27,038,273.08 |
Washington State Checkbook |
| 2022 |
Social And Health Services |
Kyndryl Inc |
$27,023,555.71 |
Washington State Checkbook |
| 2017 |
Dept Of Social And Health Services |
Sl Start And Associates Llc |
$27,016,332.57 |
Washington State Checkbook |
| 2017 |
Department Of Labor And Industries |
Proliance Surgeons Inc Ps |
$26,942,806.67 |
Washington State Checkbook |
| 2024 |
Social And Health Services |
Southeast Wa Aging & Long Term |
$26,891,846.15 |
Washington State Checkbook |
| 2021 |
Social And Health Services |
Community Living |
$26,872,444.48 |
Washington State Checkbook |
| 2025 |
Health Care Authority |
Providence Health And Services-W |
$26,851,287.78 |
Washington State Checkbook |
| 2022 |
Social And Health Services |
King County |
$26,826,796.98 |
Washington State Checkbook |
| 2016 |
Health |
King Co Public Health |
$26,819,139.76 |
Washington State Checkbook |
| 2023 |
Corrections |
Cardinal Health 130 Llc |
$26,770,860.15 |
Washington State Checkbook |
| 2020 |
Corrections |
Cardinal Health 130 Llc |
$26,730,903.65 |
Washington State Checkbook |
| 2023 |
Social And Health Services |
Public Partnerships Llc |
$26,696,352.73 |
Washington State Checkbook |
| 2024 |
Health Care Authority |
Public Hospital Dist No 1 Skagit |
$26,695,752.85 |
Washington State Checkbook |
| 2021 |
Social And Health Services |
Senior Life Resources Northwest, |
$26,677,792.61 |
Washington State Checkbook |
| 2025 |
Enterprise Services |
Alliant Insurance Services Inc |
$26,654,103.24 |
Washington State Checkbook |
| 2023 |
Social And Health Services |
Pierce County Human Services |
$26,602,633.86 |
Washington State Checkbook |
| 2024 |
State Patrol |
Motorola Solutions Inc |
$26,583,695.56 |
Washington State Checkbook |
| 2016 |
Social And Health Services |
Korean Womens Association |
$26,546,968.68 |
Washington State Checkbook |
| 2016 |
Ecology |
King Co Natural Resources |
$26,537,061.95 |
Washington State Checkbook |
| 2016 |
Health Care Authority |
Acariahealth Pharmacy 14 Inc |
$26,522,856.71 |
Washington State Checkbook |
| 2023 |
Commerce |
Yakima County Community Services |
$26,505,080.66 |
Washington State Checkbook |
| 2024 |
Enterprise Services |
Pitney Bowes Bank |
$26,500,000.00 |
Washington State Checkbook |
| 2018 |
Social And Health Services |
King County |
$26,421,282.81 |
Washington State Checkbook |
| 2024 |
Social And Health Services |
Cts Cts Allocations |
$26,395,360.43 |
Washington State Checkbook |
| 2019 |
Health Care Authority |
Public Hospital District 1 Skag |
$26,382,946.66 |
Washington State Checkbook |
| 2016 |
Transportation |
Vigor Marine Llc |
$26,368,705.05 |
Washington State Checkbook |