Year	Employer	Vendor Name	Amount	Source
2020	State Board Of Education	Springfield School Dist 186	$87,663,134.81	Illinois State Checkbook
2020	Transportation	Plote Construction Inc	$87,410,118.58	Illinois State Checkbook
2020	State Board Of Education	Community Unit School Dist 300	$87,289,362.22	Illinois State Checkbook
2018	Healthcare & Family Services	Mount Sinai Hosp Medical Ctr	$87,044,234.97	Illinois State Checkbook
2017	Il State Toll Highway Auth	Plote Construction Inc &	$85,949,755.92	Illinois State Checkbook
2022	Healthcare & Family Services	Ann & Robert H Lurie Childrens	$85,692,344.67	Illinois State Checkbook
2019	State Board Of Education	Board Of Education City Of	$85,680,124.52	Illinois State Checkbook
2017	Revenue	Springfield City Treasurer	$85,585,121.68	Illinois State Checkbook
2021	Transportation	Howell Paving Inc	$85,513,434.03	Illinois State Checkbook
2021	State Board Of Education	Springfield School Dist 186	$84,977,883.50	Illinois State Checkbook
2019	State Board Of Education	Community Unit School Dist 308	$84,922,563.34	Illinois State Checkbook
2022	Revenue	Winnebago County Treasurer Off	$84,912,968.49	Illinois State Checkbook
2021	Healthcare & Family Services	Humana Health Plan Inc	$84,774,988.20	Illinois State Checkbook
2018	Revenue	Springfield City Treasurer	$84,634,969.00	Illinois State Checkbook
2020	State Board Of Education	Thornton Fractional Twp School	$84,574,189.01	Illinois State Checkbook
2017	Il State Toll Highway Auth	Plote Construction Inc	$84,442,570.59	Illinois State Checkbook
2018	Healthcare & Family Services	Carle Foundation Hospital	$84,209,404.49	Illinois State Checkbook
2023	Revenue	Rockford City Comptroller	$84,179,139.67	Illinois State Checkbook
2018	Il Student Assistance Comm	University Of Illinois	$83,881,659.80	Illinois State Checkbook
2021	State Board Of Education	Cook County High School Dist	$83,612,224.97	Illinois State Checkbook
2022	Revenue	Rockford City Comptroller	$83,550,639.06	Illinois State Checkbook
2017	Revenue	Illinois Housing Dev Authority	$82,968,347.39	Illinois State Checkbook
2023	Il State Toll Highway Auth	Judlau Contracting Inc	$82,804,800.00	Illinois State Checkbook
2023	Revenue	Village Of Schaumburg	$82,703,611.15	Illinois State Checkbook
2020	State Board Of Education	Cook County High School Dist	$82,648,108.72	Illinois State Checkbook
2023	Il State Toll Highway Auth	Lorig Construction Company	$82,451,838.05	Illinois State Checkbook
2021	Revenue	Aurora City Treasurer	$82,094,798.20	Illinois State Checkbook
2018	Central Management	Healthlink Hmo Inc And	$82,080,142.53	Illinois State Checkbook
2023	Revenue	Peoria City Treasurer	$81,938,067.19	Illinois State Checkbook
2018	Healthcare & Family Services	Presence Central And Suburban	$81,763,172.62	Illinois State Checkbook
2018	State Board Of Education	Board Of Education City Of	$81,602,925.97	Illinois State Checkbook
2022	Transportation	E T Simonds Construction Co	$81,263,475.87	Illinois State Checkbook
2021	Capital Development Board	River City Construction Llc	$81,260,420.08	Illinois State Checkbook
2021	Revenue	Lake County Treasurer	$81,031,309.65	Illinois State Checkbook
2017	Central Management	Tristar Risk Enterprise Mgt	$80,783,000.00	Illinois State Checkbook
2022	State Board Of Education	Wheeling Township Schools	$80,687,165.54	Illinois State Checkbook
2022	Revenue	Peoria City Treasurer	$80,641,042.63	Illinois State Checkbook
2023	Human Services	Illinois Coalition For	$80,610,892.31	Illinois State Checkbook
2017	Healthcare & Family Services	Health Spring Of Tennessee	$80,609,357.70	Illinois State Checkbook
2019	Revenue	Lake County Treasurer	$80,597,651.05	Illinois State Checkbook
2022	Commerce And Economic Opportun	Illinois Dept Of Human Svcs	$80,206,346.00	Illinois State Checkbook
2020	Transportation	E T Simonds Construction Co	$80,033,745.47	Illinois State Checkbook
2021	Innovation And Technology	Cdw Llc	$79,698,717.10	Illinois State Checkbook
2018	State Board Of Education	Lyons Twp School Treasurer	$79,618,358.45	Illinois State Checkbook
2021	Central Management	Tristar Risk Enterprise Mgt	$79,571,351.95	Illinois State Checkbook
2018	State Board Of Education	Community Unit School Dist 308	$79,516,974.63	Illinois State Checkbook
2017	Healthcare & Family Services	Mount Sinai Hosp Medical Ctr	$79,475,616.16	Illinois State Checkbook
2020	Revenue	Illinois Housing Dev Authority	$79,466,937.62	Illinois State Checkbook
2021	Revenue	Joliet City Treasurer	$79,448,887.57	Illinois State Checkbook
2022	Revenue	Village Of Schaumburg	$79,364,625.80	Illinois State Checkbook
2021	State Board Of Education	Valley View Public Schools	$79,296,909.36	Illinois State Checkbook
2022	State Board Of Education	Indian Prairie Community Unit	$79,161,752.78	Illinois State Checkbook
2023	Human Services	The Catholic Charities Of The	$79,150,602.14	Illinois State Checkbook
2018	Healthcare & Family Services	St Johns Hospital Sisters Of	$78,902,131.52	Illinois State Checkbook
2021	Transportation	The Kilian Corporation	$78,837,409.21	Illinois State Checkbook
2023	Human Services	Chicago City Of	$78,502,115.43	Illinois State Checkbook
2021	Transportation	E T Simonds Construction Co	$78,409,957.07	Illinois State Checkbook
2020	State Board Of Education	Decatur Public School Dist 61	$78,202,835.87	Illinois State Checkbook
2019	Healthcare & Family Services	Aetna Better Health Inc	$78,101,888.13	Illinois State Checkbook
2021	State Board Of Education	Round Lake Area Schools Distri	$78,056,372.77	Illinois State Checkbook
2019	State Board Of Education	Community Unit School Dist 300	$77,837,445.91	Illinois State Checkbook
2019	Healthcare & Family Services	Walgreens Company	$77,765,098.35	Illinois State Checkbook
2023	Comptroller	State Univ Retirement System	$77,518,600.00	Illinois State Checkbook
2020	State Board Of Education	Valley View Public Schools	$77,435,063.02	Illinois State Checkbook
2021	State Board Of Education	Wheeling Township Schools	$77,062,261.18	Illinois State Checkbook
2021	Revenue	Naperville City Treasurer	$76,788,775.73	Illinois State Checkbook
2020	Revenue	Aurora City Treasurer	$76,548,767.65	Illinois State Checkbook
2023	State Board Of Education	Indian Prairie Community Unit	$76,442,519.25	Illinois State Checkbook
2018	State Lottery	Treasurer Office Of	$76,224,019.50	Illinois State Checkbook
2019	State Board Of Education	Decatur Public School Dist 61	$76,181,596.15	Illinois State Checkbook
2021	Healthcare & Family Services	Rush University Medical Center	$76,146,622.25	Illinois State Checkbook
2019	State Board Of Education	Springfield School Dist 186	$75,730,651.31	Illinois State Checkbook
2022	Transportation	Lorig Construction Company	$75,717,478.80	Illinois State Checkbook
2019	State Board Of Education	Regional Office Of Educ 54	$75,613,368.57	Illinois State Checkbook
2018	State Board Of Education	Board Of Educatn Schl Dist 189	$75,597,749.38	Illinois State Checkbook
2020	State Board Of Education	Round Lake Area Schools Distri	$75,515,498.10	Illinois State Checkbook
2023	Revenue	Rockford Board Of Education	$75,444,836.85	Illinois State Checkbook
2019	State Board Of Education	Board Of Educatn Schl Dist 189	$75,223,338.11	Illinois State Checkbook
2018	Transportation	Chicago City Treasurer	$75,177,801.88	Illinois State Checkbook
2020	Revenue	Lake County Treasurer	$75,102,701.13	Illinois State Checkbook
2017	Revenue	Lake County Treasurer	$74,914,407.98	Illinois State Checkbook
2018	Central Management	Cigna Health And Life Ins Co	$74,909,398.69	Illinois State Checkbook
2023	Healthcare & Family Services	Walgreens Company	$74,888,602.21	Illinois State Checkbook
2023	State Board Of Education	Dekalb Community Unit School	$74,808,414.46	Illinois State Checkbook
2020	State Lottery	Treasurer Office Of	$74,693,806.00	Illinois State Checkbook
2017	Healthcare & Family Services	Humana Health Plan Inc	$74,467,636.54	Illinois State Checkbook
2018	Revenue	Lake County Treasurer	$74,436,313.95	Illinois State Checkbook
2019	State Board Of Education	Thornton Fractional Twp School	$74,169,688.97	Illinois State Checkbook
2018	State Board Of Education	Regional Office Of Educ 54	$73,972,027.24	Illinois State Checkbook
2017	State Board Of Education	Board Of Education City Of	$73,762,739.99	Illinois State Checkbook
2023	State Board Of Education	Wheeling Township Schools	$73,691,069.82	Illinois State Checkbook
2017	Transportation	Chicago City Treasurer	$73,685,637.45	Illinois State Checkbook
2018	Healthcare & Family Services	Dentaquest Group Inc	$73,647,282.28	Illinois State Checkbook
2018	State Board Of Education	Decatur Public School Dist 61	$73,619,580.47	Illinois State Checkbook
2018	State Board Of Education	Springfield School Dist 186	$73,543,684.54	Illinois State Checkbook
2020	Revenue	Naperville City Treasurer	$73,435,315.97	Illinois State Checkbook
2020	Revenue	Joliet City Treasurer	$73,294,146.53	Illinois State Checkbook
2021	Transportation	Plote Construction Inc	$73,265,912.07	Illinois State Checkbook
2021	Capital Development Board	Principal Life Insurance Co	$73,250,000.00	Illinois State Checkbook
2019	State Board Of Education	Cook County High School Dist	$73,114,575.56	Illinois State Checkbook