| Year |
Employer |
Vendor Name |
Amount |
Source |
| 2025 |
Workforce Development, Department Of |
Fed-Oasdi Specialized Disb. Supplier |
$4,933,851.64 |
Wisconsin State Checkbook |
| 2019 |
Transportation, Department Of |
Kl Engineering Inc |
$4,928,436.64 |
Wisconsin State Checkbook |
| 2021 |
Transportation |
Jacobs Engineering Inc |
$4,924,426.36 |
Wisconsin State Checkbook |
| 2019 |
Legislature |
Employee Trust Funds |
$4,924,136.83 |
Wisconsin State Checkbook |
| 2019 |
Legislature |
Employee Trust Funds |
$4,924,136.83 |
Wisconsin State Checkbook |
| 2023 |
Public Instruction, Department Of |
Department Of Administration |
$4,923,890.84 |
Wisconsin State Checkbook |
| 2017 |
Employee Trust Funds, Department Of |
Tapfin Process Solutions |
$4,923,228.38 |
Wisconsin State Checkbook |
| 2017 |
Employee Trust Funds, Department Of |
Tapfin Process Solutions |
$4,923,228.38 |
Wisconsin State Checkbook |
| 2016 |
Transportation, Department Of |
Treas Brown County |
$4,922,633.45 |
Wisconsin State Checkbook |
| 2024 |
University Of Wisconsin System |
Fei Company |
$4,920,374.48 |
Wisconsin State Checkbook |
| 2021 |
General Fund |
Public Service Commission |
$4,917,815.79 |
Wisconsin State Checkbook |
| 2019 |
Transportation, Department Of |
Msa Professional Services Inc |
$4,916,139.06 |
Wisconsin State Checkbook |
| 2024 |
Health Services, Department Of |
Public Consulting Group, Inc |
$4,907,739.16 |
Wisconsin State Checkbook |
| 2023 |
University Of Wisconsin System |
Eab Global Inc |
$4,904,841.15 |
Wisconsin State Checkbook |
| 2022 |
Transportation, Department Of |
Fond Du Lac, City Of |
$4,901,915.25 |
Wisconsin State Checkbook |
| 2020 |
Transportation |
Columbia County |
$4,901,748.39 |
Wisconsin State Checkbook |
| 2025 |
University Of Wisconsin System |
Ae Business Solutions |
$4,898,364.00 |
Wisconsin State Checkbook |
| 2020 |
Building Trust |
Kahler Slater Inc |
$4,893,803.50 |
Wisconsin State Checkbook |
| 2019 |
Transportation, Department Of |
Milwaukee, City Of |
$4,892,735.29 |
Wisconsin State Checkbook |
| 2025 |
Investment Board |
Employee Trust Funds |
$4,891,838.76 |
Wisconsin State Checkbook |
| 2023 |
Workforce Development, Department Of |
Fed-Oasdi Specialized Disb. Supplier |
$4,888,859.31 |
Wisconsin State Checkbook |
| 2024 |
Military Affairs, Department Of |
Harris Corp |
$4,886,397.93 |
Wisconsin State Checkbook |
| 2021 |
General Fund |
Bi Inc |
$4,879,009.05 |
Wisconsin State Checkbook |
| 2019 |
Historical Society |
Department Of Administration |
$4,873,075.84 |
Wisconsin State Checkbook |
| 2019 |
Historical Society |
Department Of Administration |
$4,873,075.84 |
Wisconsin State Checkbook |
| 2021 |
General Fund |
Public Consulting Group, Inc |
$4,865,444.06 |
Wisconsin State Checkbook |
| 2023 |
Transportation, Department Of |
Omnni Engineers Arch |
$4,863,770.19 |
Wisconsin State Checkbook |
| 2021 |
Wisconsin State Checkbook |
Cdw Government Llc |
$4,852,827.50 |
Wisconsin State Checkbook |
| 2022 |
Safety And Professional Services, Department Of |
Department Of Administration |
$4,849,094.38 |
Wisconsin State Checkbook |
| 2016 |
University Of Wisconsin System |
Oracle America, Inc |
$4,847,648.00 |
Wisconsin State Checkbook |
| 2016 |
Transportation, Department Of |
Hntb Corp |
$4,845,053.87 |
Wisconsin State Checkbook |
| 2022 |
Corrections, Department Of |
Allegis Global Solutions Inc |
$4,840,878.55 |
Wisconsin State Checkbook |
| 2022 |
Transportation, Department Of |
Graef |
$4,836,814.10 |
Wisconsin State Checkbook |
| 2023 |
University Of Wisconsin System |
Vendi Advertising Llc |
$4,836,048.75 |
Wisconsin State Checkbook |
| 2025 |
Transportation, Department Of |
Gremmer & Assoc Inc |
$4,835,778.49 |
Wisconsin State Checkbook |
| 2024 |
Transportation, Department Of |
Racine County |
$4,831,006.81 |
Wisconsin State Checkbook |
| 2020 |
Transportation |
Winnebago County |
$4,830,462.27 |
Wisconsin State Checkbook |
| 2024 |
Transportation, Department Of |
Milwaukee, City Of |
$4,827,981.75 |
Wisconsin State Checkbook |
| 2020 |
General Fund-Uw |
Council On Intl Education Exchange |
$4,825,676.75 |
Wisconsin State Checkbook |
| 2023 |
Health Services, Department Of |
Univ Of Wi Hosp & Clinics |
$4,823,304.63 |
Wisconsin State Checkbook |
| 2023 |
University Of Wisconsin System |
Fei Company |
$4,822,909.59 |
Wisconsin State Checkbook |
| 2025 |
Health Services, Department Of |
Medasource |
$4,821,884.70 |
Wisconsin State Checkbook |
| 2021 |
Wisconsin State Checkbook |
Board Of Trustees Of Michigan State |
$4,821,569.88 |
Wisconsin State Checkbook |
| 2025 |
University Of Wisconsin System |
New Resources Consulting Llc |
$4,820,791.20 |
Wisconsin State Checkbook |
| 2023 |
Health Services, Department Of |
Alere North America, Inc |
$4,819,989.45 |
Wisconsin State Checkbook |
| 2020 |
Transportation |
Kirila Fire Training Facilities Inc |
$4,815,833.25 |
Wisconsin State Checkbook |
| 2021 |
General Fund |
Spherion Staffing |
$4,808,837.54 |
Wisconsin State Checkbook |
| 2018 |
Building Commission |
R.J. Jurowski Construction, Inc |
$4,808,512.40 |
Wisconsin State Checkbook |
| 2025 |
Transportation, Department Of |
Village Of Germantown |
$4,808,313.02 |
Wisconsin State Checkbook |
| 2025 |
Safety And Professional Services, Department Of |
Carahsoft Technology Corp |
$4,799,667.23 |
Wisconsin State Checkbook |
| 2022 |
University Of Wisconsin System |
Weber Health Logistics Llc |
$4,786,728.00 |
Wisconsin State Checkbook |
| 2019 |
Transportation, Department Of |
Mathy Construction Co |
$4,785,860.55 |
Wisconsin State Checkbook |
| 2016 |
University Of Wisconsin System |
Aig Claims Services |
$4,779,683.00 |
Wisconsin State Checkbook |
| 2024 |
Revenue, Department Of |
Fed-Oasdi Specialized Disb. Supplier |
$4,778,551.54 |
Wisconsin State Checkbook |
| 2022 |
Transportation, Department Of |
Winnebago County |
$4,770,287.31 |
Wisconsin State Checkbook |
| 2022 |
Revenue, Department Of |
Fast Enterprises, Llc |
$4,768,843.75 |
Wisconsin State Checkbook |
| 2024 |
University Of Wisconsin System |
Core Bts Inc |
$4,758,536.92 |
Wisconsin State Checkbook |
| 2019 |
Revenue, Department Of |
Hy Connect |
$4,757,440.39 |
Wisconsin State Checkbook |
| 2019 |
Revenue, Department Of |
Hy Connect |
$4,757,440.39 |
Wisconsin State Checkbook |
| 2023 |
Transportation, Department Of |
Bayfield County |
$4,754,111.46 |
Wisconsin State Checkbook |
| 2022 |
Natural Resources, Department Of |
University Of Wisconsin System |
$4,748,066.78 |
Wisconsin State Checkbook |
| 2023 |
Transportation, Department Of |
Trierweiler Construction Supp |
$4,745,126.08 |
Wisconsin State Checkbook |
| 2025 |
Investment Board |
Wisconsin Retirement System |
$4,740,109.24 |
Wisconsin State Checkbook |
| 2025 |
Revenue, Department Of |
Fed-Oasdi Specialized Disb. Supplier |
$4,736,029.14 |
Wisconsin State Checkbook |
| 2018 |
Children And Families, Department Of |
Cgi |
$4,735,414.36 |
Wisconsin State Checkbook |
| 2024 |
University Of Wisconsin System |
Staples Inc |
$4,735,413.86 |
Wisconsin State Checkbook |
| 2023 |
Building Commission |
Balestrieri Environ & Dev |
$4,723,991.33 |
Wisconsin State Checkbook |
| 2025 |
University Of Wisconsin System |
Arthur J Gallagher Risk Mgmt Svcs Inc |
$4,720,644.75 |
Wisconsin State Checkbook |
| 2024 |
University Of Wisconsin System |
University Of Minnesota |
$4,718,763.39 |
Wisconsin State Checkbook |
| 2025 |
University Of Wisconsin System |
First Supply Llc |
$4,718,700.84 |
Wisconsin State Checkbook |
| 2019 |
Transportation, Department Of |
Zignego Co Inc |
$4,716,988.87 |
Wisconsin State Checkbook |
| 2020 |
General Fund |
Elavon Inc |
$4,712,195.19 |
Wisconsin State Checkbook |
| 2024 |
Health Services, Department Of |
Health Services, Dept. Of |
$4,711,803.48 |
Wisconsin State Checkbook |
| 2025 |
Children And Families, Department Of |
Maximus |
$4,709,769.29 |
Wisconsin State Checkbook |
| 2025 |
Circuit Courts |
Wisconsin Retirement System |
$4,709,749.42 |
Wisconsin State Checkbook |
| 2022 |
University Of Wisconsin System |
Ciee Inc |
$4,708,937.02 |
Wisconsin State Checkbook |
| 2023 |
Health Services, Department Of |
Worldwide Travel Staffing Ltd |
$4,705,026.96 |
Wisconsin State Checkbook |
| 2025 |
University Of Wisconsin System |
Oracle America Inc |
$4,704,748.07 |
Wisconsin State Checkbook |
| 2022 |
Workforce Development, Department Of |
Wisconsin Retirement System |
$4,701,006.04 |
Wisconsin State Checkbook |
| 2020 |
General Fund-Uw |
Wi Department Of Administration |
$4,695,674.16 |
Wisconsin State Checkbook |
| 2021 |
Wisconsin State Checkbook |
Market & Johnson Inc |
$4,695,595.38 |
Wisconsin State Checkbook |
| 2016 |
Transportation, Department Of |
Howard Immel Inc |
$4,687,601.38 |
Wisconsin State Checkbook |
| 2017 |
Children And Families, Department Of |
Cgi |
$4,686,799.10 |
Wisconsin State Checkbook |
| 2017 |
Children And Families, Department Of |
Cgi |
$4,686,799.10 |
Wisconsin State Checkbook |
| 2020 |
Capital Improvement |
V & S Construction Services Inc |
$4,685,324.62 |
Wisconsin State Checkbook |
| 2023 |
Safety And Professional Services, Department Of |
Carahsoft Technology Corp |
$4,684,463.09 |
Wisconsin State Checkbook |
| 2023 |
Health Services, Department Of |
Metastar, Inc. |
$4,682,768.25 |
Wisconsin State Checkbook |
| 2021 |
General Fund |
Health Services, Dept. Of |
$4,682,158.55 |
Wisconsin State Checkbook |
| 2025 |
Health Services, Department Of |
Fidelity Information Srvs |
$4,672,154.60 |
Wisconsin State Checkbook |
| 2023 |
Revenue, Department Of |
Wisconsin Retirement System |
$4,667,771.02 |
Wisconsin State Checkbook |
| 2024 |
Transportation, Department Of |
Siemens Mobility Inc |
$4,665,845.80 |
Wisconsin State Checkbook |
| 2025 |
Building Commission |
Cardinal Construction Co Inc |
$4,663,540.26 |
Wisconsin State Checkbook |
| 2025 |
Building Commission |
Tricon Construction Group |
$4,659,879.48 |
Wisconsin State Checkbook |
| 2016 |
Transportation, Department Of |
Concrete Structures Inc |
$4,657,696.40 |
Wisconsin State Checkbook |
| 2020 |
Transportation |
Cbn Secure Technologies Inc |
$4,654,394.42 |
Wisconsin State Checkbook |
| 2024 |
University Of Wisconsin System |
Agilent Technologies Inc |
$4,653,762.97 |
Wisconsin State Checkbook |
| 2020 |
General Fund-Uw |
Chartwells Dining |
$4,649,955.63 |
Wisconsin State Checkbook |
| 2025 |
University Of Wisconsin System |
Eab Global Inc |
$4,647,024.98 |
Wisconsin State Checkbook |
| 2025 |
Health Services, Department Of |
Health Services, Dept. Of |
$4,643,284.40 |
Wisconsin State Checkbook |
| 2023 |
Transportation, Department Of |
Sauk County |
$4,643,038.51 |
Wisconsin State Checkbook |