Year	Employer	Vendor Name	Amount	Source
2024	Public Health	Public Health Department Of	$17,000,000.00	Illinois State Checkbook
2017	Judges Retirement System	Il State Board Of Investment	$17,000,000.00	Illinois State Checkbook
2022	State Board Of Education	Illinois State Board Of Educ	$17,000,000.00	Illinois State Checkbook
2017	Revenue	Rosemont Village Treasurer	$16,999,739.22	Illinois State Checkbook
2020	State Board Of Education	Jacksonville School Dist 117	$16,994,382.61	Illinois State Checkbook
2020	State Board Of Education	County Of Dupage School Dist 4	$16,990,536.70	Illinois State Checkbook
2020	Il State Toll Highway Auth	Electronic Transaction	$16,978,784.84	Illinois State Checkbook
2018	Central Management	Health Care Service Corp	$16,976,218.92	Illinois State Checkbook
2018	Environmental Protect Agency	Kishwaukee Water Reclamation	$16,970,047.40	Illinois State Checkbook
2022	State Board Of Education	Calumet Township School Treas	$16,966,521.85	Illinois State Checkbook
2021	Healthcare & Family Services	Maxim Healthcare Services Inc	$16,965,367.75	Illinois State Checkbook
2017	Revenue	Wheaton City Treasurer	$16,954,367.28	Illinois State Checkbook
2020	State Board Of Education	Grayslake Community High Schl	$16,949,663.33	Illinois State Checkbook
2024	Revenue	Shorewood Village Treasurer	$16,948,243.69	Illinois State Checkbook
2024	Human Services	Liberty Healthcare Corporation	$16,942,235.97	Illinois State Checkbook
2020	Human Services	Clearbrook	$16,935,021.84	Illinois State Checkbook
2018	Revenue	Marion City Treasurer	$16,927,256.93	Illinois State Checkbook
2019	Revenue	Hanover Park Village Treasurer	$16,924,296.01	Illinois State Checkbook
2022	State Board Of Education	Woodland Comm Consolidated	$16,917,992.57	Illinois State Checkbook
2017	Il State Toll Highway Auth	Jacobs Engineering Group Inc	$16,907,724.38	Illinois State Checkbook
2018	Transportation	Greater Peoria Mass Transit	$16,902,942.12	Illinois State Checkbook
2022	Il Emergency Management Agcy	Mid-Central Medical Inc	$16,900,033.80	Illinois State Checkbook
2024	Aging	Northwest Home Care Inc	$16,895,399.21	Illinois State Checkbook
2021	Transportation	Madison County Mass-Transit	$16,890,187.38	Illinois State Checkbook
2023	State Board Of Education	Ncs Pearson Inc	$16,889,643.00	Illinois State Checkbook
2020	Revenue	Northbrook Vilalge Treasurer	$16,889,079.84	Illinois State Checkbook
2019	Revenue	Oswego Village Treasurer	$16,884,650.09	Illinois State Checkbook
2020	State Board Of Education	Herrin Community Unit School	$16,884,330.94	Illinois State Checkbook
2022	State Board Of Education	Leyden High School Dist No 212	$16,877,547.98	Illinois State Checkbook
2023	Revenue	Park Ridge City Treasurer	$16,864,656.76	Illinois State Checkbook
2018	Natural Resources	University Of Illinois	$16,862,441.85	Illinois State Checkbook
2020	Transportation	Herlihy Mid Continent Company	$16,858,503.77	Illinois State Checkbook
2019	Transportation	Madison County Mass-Transit	$16,848,786.86	Illinois State Checkbook
2021	Revenue	Algonquin Village Treasurer	$16,835,418.81	Illinois State Checkbook
2025	Transportation	Alliance Contractors Inc	$16,835,091.66	Illinois State Checkbook
2024	State Board Of Education	Dixon Unit School District 170	$16,826,813.57	Illinois State Checkbook
2024	Revenue	Alton City Treasurer	$16,816,674.89	Illinois State Checkbook
2025	Transportation	Ihc Construction Companies Llc	$16,810,895.31	Illinois State Checkbook
2019	Aging	Ageoptions Inc	$16,809,340.14	Illinois State Checkbook
2021	Innovation And Technology	Illinois Bell Telephone Co	$16,806,435.15	Illinois State Checkbook
2021	Revenue	Galesburg City Treasurer	$16,805,734.40	Illinois State Checkbook
2022	Public Health	Illinois Critical Access	$16,800,121.40	Illinois State Checkbook
2022	Il State Toll Highway Auth	Commonwealth Edison Company	$16,797,405.99	Illinois State Checkbook
2024	Revenue	Morton Grove Village Treasurer	$16,796,656.90	Illinois State Checkbook
2019	Revenue	Collinsville City Treasurer	$16,795,271.20	Illinois State Checkbook
2025	State Police	Dupage County	$16,792,534.90	Illinois State Checkbook
2024	Il Student Assistance Comm	Northeastern Illinois Univ	$16,783,099.00	Illinois State Checkbook
2018	Il Community College Board	Community College Dist 502	$16,782,070.08	Illinois State Checkbook
2020	Public Health	Cook County	$16,779,824.40	Illinois State Checkbook
2023	State Board Of Education	Illinois Action For Children	$16,779,235.08	Illinois State Checkbook
2018	State Board Of Education	Ncs Pearson Inc	$16,772,764.77	Illinois State Checkbook
2025	Revenue	Rock Island County Treasurer	$16,768,419.41	Illinois State Checkbook
2022	Transportation	Greater Peoria Mass Transit	$16,767,173.52	Illinois State Checkbook
2024	Innovation And Technology	Shi International Corp	$16,766,897.54	Illinois State Checkbook
2024	Human Services	Frances House Inc	$16,763,861.50	Illinois State Checkbook
2024	Transportation	P T Ferro Construction Co Inc	$16,761,839.67	Illinois State Checkbook
2025	State Board Of Education	Mchenry Cmnty Consolidated	$16,751,546.79	Illinois State Checkbook
2023	Revenue	Madison County Mass-Transit	$16,743,045.75	Illinois State Checkbook
2021	Children And Family Services	University Of Illinois	$16,737,138.19	Illinois State Checkbook
2022	State Board Of Education	Beach Park Consolidated Schl	$16,735,618.09	Illinois State Checkbook
2022	Transportation	Berger Excavating Contractors	$16,730,611.06	Illinois State Checkbook
2020	Human Services	Chestnut Health Systems Inc	$16,727,324.93	Illinois State Checkbook
2019	Aging	Northeastern Illinois Area	$16,725,619.07	Illinois State Checkbook
2025	Healthcare & Family Services	Maxim Healthcare Services Inc	$16,722,603.03	Illinois State Checkbook
2023	Revenue	Adams County Unit Sch 172	$16,720,875.94	Illinois State Checkbook
2022	Il Community College Board	Southwestern Illinois College	$16,720,014.54	Illinois State Checkbook
2024	State Board Of Education	Du Quoin Community Unit School	$16,717,241.70	Illinois State Checkbook
2018	Revenue	Champaign County Treasurer	$16,716,038.54	Illinois State Checkbook
2019	Transportation	Christ Bros Asphalt Inc	$16,715,124.06	Illinois State Checkbook
2025	State Board Of Education	Carterville Community School	$16,711,441.02	Illinois State Checkbook
2023	Revenue	Alton Cusd 11	$16,710,373.10	Illinois State Checkbook
2020	State Board Of Education	Edwardsville Community Unit	$16,700,017.15	Illinois State Checkbook
2022	State Board Of Education	Ofallon Community Consolidated	$16,698,422.10	Illinois State Checkbook
2025	Revenue	Rock Island County Regional	$16,693,169.34	Illinois State Checkbook
2022	Illinois Gaming Board	Cook County	$16,688,230.46	Illinois State Checkbook
2025	State Board Of Education	Illinois Action For Children	$16,684,870.42	Illinois State Checkbook
2024	State Board Of Education	Carterville Community School	$16,682,870.79	Illinois State Checkbook
2022	Il State Toll Highway Auth	Electronic Transaction	$16,682,628.96	Illinois State Checkbook
2024	Transportation	Ambraw Asphalt Materials Inc	$16,682,364.53	Illinois State Checkbook
2020	Revenue	Pekin City Treasurer	$16,682,327.42	Illinois State Checkbook
2024	Il Community College Board	Illinois Eastern Community Col	$16,679,202.95	Illinois State Checkbook
2021	Central Management	Health Alliance Medical Plan I	$16,677,123.25	Illinois State Checkbook
2019	Revenue	Pekin City Treasurer	$16,674,423.21	Illinois State Checkbook
2019	Revenue	Tazewell County Treasurer	$16,671,890.17	Illinois State Checkbook
2018	Healthcare & Family Services	Protestant Memorial Med Ctr	$16,668,867.90	Illinois State Checkbook
2022	State Board Of Education	Community Unit School Dist 3	$16,667,151.12	Illinois State Checkbook
2018	Il State Toll Highway Auth	Hntb Corp	$16,662,829.12	Illinois State Checkbook
2017	Revenue	Buffalo Grove Village Treasure	$16,662,644.42	Illinois State Checkbook
2020	Il Community College Board	Southwestern Illinois College	$16,659,361.17	Illinois State Checkbook
2022	Innovation And Technology	Rl Canning Inc	$16,657,381.30	Illinois State Checkbook
2020	Healthcare & Family Services	Southern Illinois Hospital	$16,649,962.81	Illinois State Checkbook
2024	Il Community College Board	Lake Land College	$16,647,536.13	Illinois State Checkbook
2023	Revenue	Shorewood Village Treasurer	$16,641,960.66	Illinois State Checkbook
2020	Healthcare & Family Services	St Alexius Medical Center	$16,641,879.15	Illinois State Checkbook
2021	Revenue	Westmont Village Treasurer	$16,639,525.40	Illinois State Checkbook
2025	Capital Development Board	W E Oneil Construction C O	$16,639,033.40	Illinois State Checkbook
2022	Transportation	Kane County Of	$16,633,639.51	Illinois State Checkbook
2023	Transportation	City Of Springfield	$16,631,017.91	Illinois State Checkbook
2019	Il Emergency Management Agcy	Cook County	$16,626,494.13	Illinois State Checkbook
2023	Revenue	Geneva City Treasurer	$16,621,911.91	Illinois State Checkbook