Year	Employer	Vendor Name	Amount	Source
2021	Revenue	Cicero Town Treasurer	$35,575,981.67	Illinois State Checkbook
2020	Revenue	Mchenry County Treasurer	$35,533,338.01	Illinois State Checkbook
2023	Il Emergency Management Agcy	Advocate Health Care Network	$35,508,438.27	Illinois State Checkbook
2023	Healthcare & Family Services	Carle Foundation Hospital	$35,496,935.92	Illinois State Checkbook
2023	State Board Of Education	Community Unit School Dist 200	$35,487,393.32	Illinois State Checkbook
2022	Revenue	Peoria Unit Sch 150	$35,411,854.81	Illinois State Checkbook
2021	Healthcare & Family Services	St Johns Hospital Sisters Of	$35,293,826.53	Illinois State Checkbook
2021	State Employees' Retire System	Treasurer Office Of	$35,284,131.14	Illinois State Checkbook
2023	Revenue	Niles Vilalge Treasurer	$35,244,221.32	Illinois State Checkbook
2022	Revenue	Des Plaines City Treasurer	$35,218,041.17	Illinois State Checkbook
2021	Healthcare & Family Services	Osf Health Care System	$35,217,218.90	Illinois State Checkbook
2021	Transportation	Icc Group Inc	$35,215,719.66	Illinois State Checkbook
2021	State Board Of Education	Comm Cons School District 15	$35,212,354.50	Illinois State Checkbook
2017	Central Management	Health Alliance Medical Plan I	$35,151,968.27	Illinois State Checkbook
2023	State Board Of Education	Crete Monee Community Unit	$35,139,262.55	Illinois State Checkbook
2021	State Board Of Education	Schaumburg Comm Consolidated	$35,065,173.62	Illinois State Checkbook
2018	Transportation	Howell Paving Inc	$35,031,594.97	Illinois State Checkbook
2021	Healthcare & Family Services	Carle Foundation Hospital	$34,964,369.37	Illinois State Checkbook
2019	Transportation	Union Pacific Railroad Company	$34,934,545.80	Illinois State Checkbook
2020	Revenue	Decatur City Treasurer	$34,815,105.46	Illinois State Checkbook
2018	State Board Of Education	Rock Island School Dstrct #41	$34,755,840.19	Illinois State Checkbook
2018	Healthcare & Family Services	Health Spring Of Tennessee	$34,753,436.28	Illinois State Checkbook
2020	Revenue	Glenview Village Treasurer	$34,719,844.49	Illinois State Checkbook
2017	Healthcare & Family Services	Advocate Northside	$34,695,496.42	Illinois State Checkbook
2019	Supreme Court	Cook County	$34,694,921.27	Illinois State Checkbook
2022	State Board Of Education	Belleville Township High	$34,641,611.27	Illinois State Checkbook
2022	Transportation	Champaign Urbana Mass Transit	$34,631,712.27	Illinois State Checkbook
2019	Revenue	Decatur City Treasurer	$34,617,093.31	Illinois State Checkbook
2020	State Board Of Education	Danville Community Consolidate	$34,596,974.32	Illinois State Checkbook
2022	State Board Of Education	Galesburg Community Unit Schoo	$34,595,403.69	Illinois State Checkbook
2018	State Board Of Education	Dekalb Community Unit School	$34,576,165.26	Illinois State Checkbook
2022	State Board Of Education	Community Unit School Dist 200	$34,555,977.53	Illinois State Checkbook
2020	State Board Of Education	Huntley Community School	$34,531,938.07	Illinois State Checkbook
2021	State Board Of Education	Moline-Cole Valley Community	$34,502,440.34	Illinois State Checkbook
2022	Human Services	Misericordia Home	$34,498,274.40	Illinois State Checkbook
2019	Revenue	Glenview Village Treasurer	$34,491,441.20	Illinois State Checkbook
2020	State Board Of Education	County Of Cook School Dist 98	$34,473,868.05	Illinois State Checkbook
2019	Transportation	E T Simonds Construction Co	$34,466,085.70	Illinois State Checkbook
2023	State Board Of Education	Urbana School District 116	$34,457,888.11	Illinois State Checkbook
2020	Revenue	Waukegan City Treasurer	$34,440,126.31	Illinois State Checkbook
2017	Environmental Protect Agency	Fox Metro Water Rclmtn Dist	$34,396,828.91	Illinois State Checkbook
2021	State Board Of Education	Board Of Education S D 100	$34,381,025.42	Illinois State Checkbook
2020	State Board Of Education	Regional Office Of Educ 54	$34,356,305.00	Illinois State Checkbook
2019	State Board Of Education	Harlem Consolidated School	$34,348,159.48	Illinois State Checkbook
2023	Innovation And Technology	Deloitte Consulting Llp	$34,337,233.86	Illinois State Checkbook
2018	Revenue	Mchenry County Treasurer	$34,335,628.14	Illinois State Checkbook
2022	Human Services	The Thresholds	$34,318,311.39	Illinois State Checkbook
2022	Aging	Medical Gear Llc	$34,310,949.03	Illinois State Checkbook
2023	Il State Toll Highway Auth	Transystems Corporation	$34,297,901.75	Illinois State Checkbook
2017	Healthcare & Family Services	Memorial Medical Center	$34,253,755.00	Illinois State Checkbook
2022	State Board Of Education	Zion Public School Dist 6	$34,233,897.38	Illinois State Checkbook
2019	Healthcare & Family Services	St Johns Hospital Sisters Of	$34,185,038.26	Illinois State Checkbook
2020	Healthcare & Family Services	Mercy Hospital & Medical Ctr	$34,175,670.00	Illinois State Checkbook
2022	State Board Of Education	Quincy Public Schools	$34,165,030.88	Illinois State Checkbook
2018	Transportation	The Kilian Corporation	$34,153,674.20	Illinois State Checkbook
2023	Il State Toll Highway Auth	Dunnet Bay Construction Co	$34,105,172.45	Illinois State Checkbook
2019	Transportation	St Clair County Transit Dist	$34,093,161.41	Illinois State Checkbook
2019	State Board Of Education	Community Unit School District	$34,083,990.12	Illinois State Checkbook
2021	Revenue	Arlington Heights Treasurer	$34,035,365.73	Illinois State Checkbook
2017	Healthcare & Family Services	Rockford Memorial Hospital	$34,008,288.13	Illinois State Checkbook
2020	Innovation And Technology	Mckinsey & Company Inc	$33,934,368.25	Illinois State Checkbook
2020	Il Emergency Management Agcy	Edward Roberts Llc	$33,920,743.50	Illinois State Checkbook
2020	State Board Of Education	Schaumburg Comm Consolidated	$33,876,096.88	Illinois State Checkbook
2020	Healthcare & Family Services	Carle Foundation Hospital	$33,830,682.99	Illinois State Checkbook
2023	Revenue	Quincy City Treasurer	$33,775,872.70	Illinois State Checkbook
2021	State Board Of Education	Community Unit School	$33,768,180.44	Illinois State Checkbook
2019	State Board Of Education	Alton Comm Unit School Dist	$33,749,347.72	Illinois State Checkbook
2020	State Board Of Education	Board Of Education S D 100	$33,741,642.51	Illinois State Checkbook
2023	State Board Of Education	Community Unit District No 203	$33,695,977.99	Illinois State Checkbook
2019	State Board Of Education	Mclean County Unit Dist No 5	$33,678,713.92	Illinois State Checkbook
2022	Il Student Assistance Comm	Illinois State University	$33,612,041.57	Illinois State Checkbook
2020	Human Services	The Thresholds	$33,553,226.40	Illinois State Checkbook
2019	Healthcare & Family Services	Presence Central And Suburban	$33,547,966.10	Illinois State Checkbook
2022	Healthcare & Family Services	Northshore University Health	$33,519,599.05	Illinois State Checkbook
2018	Revenue	Mount Prospect Village Treasur	$33,507,793.17	Illinois State Checkbook
2017	Transportation	St Clair County Transit Dist	$33,502,659.60	Illinois State Checkbook
2021	Transportation	Meade Inc	$33,487,570.09	Illinois State Checkbook
2017	Healthcare & Family Services	Mercy Hospital & Medical Ctr	$33,441,185.79	Illinois State Checkbook
2023	Healthcare & Family Services	Presence Chicago Hospitals Ntk	$33,439,060.25	Illinois State Checkbook
2020	Il State Toll Highway Auth	Commonwealth Edison Company	$33,427,921.54	Illinois State Checkbook
2020	State Board Of Education	Champaign Comm Schl Dist No 4	$33,320,732.22	Illinois State Checkbook
2020	Healthcare & Family Services	Presence Central And Suburban	$33,315,959.09	Illinois State Checkbook
2017	Revenue	Mchenry County Treasurer	$33,314,904.56	Illinois State Checkbook
2018	Central Management	Health Alliance Medical Plan I	$33,312,146.36	Illinois State Checkbook
2020	Transportation	Peter Baker & Son Co	$33,285,430.81	Illinois State Checkbook
2021	Transportation	Iowa Dept Of Transportation	$33,257,204.28	Illinois State Checkbook
2023	Revenue	St Charles City Treasurer	$33,209,632.51	Illinois State Checkbook
2022	Revenue	Niles Vilalge Treasurer	$33,158,554.80	Illinois State Checkbook
2017	Healthcare & Family Services	Northshore University Health	$33,126,392.95	Illinois State Checkbook
2020	State Board Of Education	Niles Twp School Treasurer	$33,122,120.55	Illinois State Checkbook
2021	Public Health	Illinois Public Health	$33,063,255.40	Illinois State Checkbook
2018	Revenue	Glenview Village Treasurer	$33,032,430.01	Illinois State Checkbook
2023	Revenue	Elmhurst City Treasurer	$33,009,115.08	Illinois State Checkbook
2022	Revenue	Quincy City Treasurer	$33,000,934.20	Illinois State Checkbook
2020	State Board Of Education	Community Unit School	$32,991,314.02	Illinois State Checkbook
2018	Healthcare & Family Services	Mercy Hospital & Medical Ctr	$32,976,799.99	Illinois State Checkbook
2020	Healthcare & Family Services	Chicago Board Of Education	$32,961,920.78	Illinois State Checkbook
2021	Human Services	Misericordia Home	$32,919,472.62	Illinois State Checkbook
2023	Transportation	Dupage County Of	$32,914,762.40	Illinois State Checkbook
2017	Healthcare & Family Services	Swedish Covenant Hospital	$32,889,539.93	Illinois State Checkbook