Year	Employer	Vendor Name	Amount	Source
2021	State Board Of Education	Cahokia Comm School Dist 187	$47,627,417.60	Illinois State Checkbook
2018	Transportation	Iowa Dept Of Transportation	$47,569,624.83	Illinois State Checkbook
2019	Healthcare & Family Services	Rush University Medical Center	$47,468,788.84	Illinois State Checkbook
2023	State Board Of Education	Mclean County Unit Dist No 5	$47,416,170.21	Illinois State Checkbook
2022	Transportation	St Clair County Transit Dist	$47,394,921.60	Illinois State Checkbook
2022	Healthcare & Family Services	Saint Francis Medical Center	$47,355,064.96	Illinois State Checkbook
2019	Healthcare & Family Services	Dentaquest Group Inc	$47,240,863.03	Illinois State Checkbook
2019	Il State Toll Highway Auth	Toll Highway Authority	$47,117,312.90	Illinois State Checkbook
2023	University Of Illinois	University Of Illinois	$47,018,130.87	Illinois State Checkbook
2019	State Board Of Education	Maine Twp School Treasurer	$46,986,311.01	Illinois State Checkbook
2017	Il State Toll Highway Auth	Commonwealth Edison Company	$46,938,892.71	Illinois State Checkbook
2017	Il State Toll Highway Auth	Curran Contracting Company	$46,931,683.05	Illinois State Checkbook
2018	State Board Of Education	Maine Twp School Treasurer	$46,913,111.37	Illinois State Checkbook
2022	Revenue	Skokie Village Treasurer	$46,812,150.70	Illinois State Checkbook
2023	Il Student Assistance Comm	Illinois State University	$46,760,990.10	Illinois State Checkbook
2017	State Board Of Education	Regional Office Of Educ 30	$46,701,417.36	Illinois State Checkbook
2019	Revenue	Elgin City Treasurer	$46,660,430.75	Illinois State Checkbook
2023	Commerce And Economic Opportun	Okeefe Reinhard & Paul Llc	$46,613,029.78	Illinois State Checkbook
2018	Revenue	Champaign City Treasurer	$46,603,988.20	Illinois State Checkbook
2020	Transportation	Judlau Contracting Inc	$46,572,928.69	Illinois State Checkbook
2017	Transportation	Kenny Construction Company	$46,557,413.87	Illinois State Checkbook
2022	Human Services	Illinois Coalition For	$46,529,400.28	Illinois State Checkbook
2021	State Board Of Education	Granite City Cusd 9	$46,382,546.43	Illinois State Checkbook
2022	Revenue	Waukegan City Treasurer	$46,372,586.23	Illinois State Checkbook
2019	State Board Of Education	Community Consolidated School	$46,339,739.33	Illinois State Checkbook
2017	State Board Of Education	Indian Prairie Community Unit	$46,260,995.29	Illinois State Checkbook
2022	State Board Of Education	Mclean County Unit Dist No 5	$46,139,851.55	Illinois State Checkbook
2017	Revenue	Champaign City Treasurer	$46,102,248.41	Illinois State Checkbook
2023	Transportation	Kankakee Vly Cnstrctn Co Inc	$46,056,934.17	Illinois State Checkbook
2017	Central Management	Healthlink Hmo Inc And	$45,957,166.62	Illinois State Checkbook
2023	Transportation	Plote Construction Inc	$45,950,062.23	Illinois State Checkbook
2023	Revenue	Glenview Village Treasurer	$45,863,577.75	Illinois State Checkbook
2017	Transportation	Kraemer North America Llc	$45,836,026.47	Illinois State Checkbook
2023	Revenue	Chicago City Comm Coll 508	$45,825,773.93	Illinois State Checkbook
2023	Human Services	Maxim Healthcare Staffing	$45,725,831.02	Illinois State Checkbook
2019	State Board Of Education	Kankakee School Dist 111	$45,701,746.66	Illinois State Checkbook
2017	Transportation	Howell Paving Inc	$45,646,587.73	Illinois State Checkbook
2021	Public Health	Chicago City Of	$45,571,093.28	Illinois State Checkbook
2017	Transportation	The Kilian Corporation	$45,371,000.96	Illinois State Checkbook
2023	Environmental Protect Agency	Chicago City Of	$45,321,009.86	Illinois State Checkbook
2019	Healthcare & Family Services	Loyola University Medical Cntr	$45,244,155.44	Illinois State Checkbook
2018	Healthcare & Family Services	Wal-Mart Stores Inc	$45,190,293.48	Illinois State Checkbook
2017	Healthcare & Family Services	Presence Saints Mary And	$45,123,069.47	Illinois State Checkbook
2018	Transportation	Lorig Construction Company	$45,088,078.98	Illinois State Checkbook
2023	Human Services	University Of Illinois	$44,911,310.20	Illinois State Checkbook
2023	Healthcare & Family Services	Chicago Board Of Education	$44,907,911.66	Illinois State Checkbook
2022	Transportation	National Railroad Passenger Co	$44,849,264.85	Illinois State Checkbook
2020	Aging	Community Care Systems	$44,845,924.42	Illinois State Checkbook
2021	State Board Of Education	Harlem Consolidated School	$44,834,642.99	Illinois State Checkbook
2023	Revenue	Cicero Town Treasurer	$44,814,802.57	Illinois State Checkbook
2020	Transportation	St Clair County Transit Dist	$44,806,233.11	Illinois State Checkbook
2018	State Board Of Education	Community Consolidated School	$44,768,050.21	Illinois State Checkbook
2023	Central Management	Gallagher Bassett Services Inc	$44,761,015.00	Illinois State Checkbook
2017	Il State Toll Highway Auth	Walsh Construction Co Ii Llc	$44,738,825.75	Illinois State Checkbook
2018	State Board Of Education	Kankakee School Dist 111	$44,731,137.55	Illinois State Checkbook
2023	State Board Of Education	Joliet Twp Hs Dist 204	$44,702,484.40	Illinois State Checkbook
2023	Revenue	Decatur City Treasurer	$44,681,508.74	Illinois State Checkbook
2017	Transportation	Rush Truck Ctrs Of	$44,677,999.59	Illinois State Checkbook
2020	State Board Of Education	Cahokia Comm School Dist 187	$44,676,621.11	Illinois State Checkbook
2023	State Board Of Education	Schaumburg Comm Consolidated	$44,611,107.47	Illinois State Checkbook
2021	State Board Of Education	Community Unit School District	$44,535,930.98	Illinois State Checkbook
2020	Il State Toll Highway Auth	Judlau Contracting Inc	$44,500,640.06	Illinois State Checkbook
2019	Revenue	Winnebago County Treasurer Off	$44,459,341.92	Illinois State Checkbook
2021	Transportation	Johnson Bros Corporationa	$44,452,153.49	Illinois State Checkbook
2020	Revenue	Bolingbrook Village Treasurer	$44,442,980.92	Illinois State Checkbook
2019	Transportation	Rush Truck Ctrs Of	$44,428,684.76	Illinois State Checkbook
2021	Transportation	St Clair County Transit Dist	$44,195,335.57	Illinois State Checkbook
2019	Revenue	Chicago Park District	$44,114,271.07	Illinois State Checkbook
2019	Aging	Community Care Systems	$44,044,691.58	Illinois State Checkbook
2022	State Board Of Education	Collinsville Community Unit	$43,956,271.96	Illinois State Checkbook
2020	State Board Of Education	Granite City Cusd 9	$43,914,073.48	Illinois State Checkbook
2018	Central Management	Cvs Pharmacy Inc	$43,901,265.31	Illinois State Checkbook
2020	Il Emergency Management Agcy	Favorite Healthcare Staffing	$43,874,678.02	Illinois State Checkbook
2019	Revenue	Bolingbrook Village Treasurer	$43,836,725.22	Illinois State Checkbook
2022	State Board Of Education	Niles Twp School Treasurer	$43,797,875.68	Illinois State Checkbook
2018	Il Student Assistance Comm	Navient Solutions Inc	$43,775,601.40	Illinois State Checkbook
2022	Revenue	Glenview Village Treasurer	$43,527,193.26	Illinois State Checkbook
2023	Healthcare & Family Services	Dentaquest Group Inc	$43,511,356.16	Illinois State Checkbook
2022	State Board Of Education	Champaign Comm Schl Dist No 4	$43,501,774.00	Illinois State Checkbook
2021	Transportation	Judlau Contracting Inc	$43,482,761.06	Illinois State Checkbook
2022	Transportation	Johnson Bros Corporationa	$43,478,612.81	Illinois State Checkbook
2020	Healthcare & Family Services	Public Health Dept Of	$43,448,819.79	Illinois State Checkbook
2020	Revenue	Winnebago County Treasurer Off	$43,448,486.85	Illinois State Checkbook
2018	Healthcare & Family Services	Rockford Memorial Hospital	$43,441,858.91	Illinois State Checkbook
2023	Transportation	K-Five Construction Corp	$43,420,997.64	Illinois State Checkbook
2022	Revenue	Cicero Town Treasurer	$43,338,641.36	Illinois State Checkbook
2017	Revenue	Metrpltn Water Rclm Dist Of Ch	$43,312,148.95	Illinois State Checkbook
2019	State Board Of Education	Belvidere Community Unit	$43,277,626.63	Illinois State Checkbook
2021	Transportation	R W Dunteman Company	$43,236,246.17	Illinois State Checkbook
2021	State Board Of Education	Mclean County Unit Dist No 5	$43,201,930.44	Illinois State Checkbook
2017	Healthcare & Family Services	Loyola University Medical Cntr	$43,156,512.19	Illinois State Checkbook
2023	Aging	Medical Gear Llc	$43,097,534.58	Illinois State Checkbook
2022	Revenue	Decatur City Treasurer	$42,985,990.81	Illinois State Checkbook
2023	Revenue	Arlington Heights Treasurer	$42,961,143.08	Illinois State Checkbook
2020	Revenue	Metrpltn Water Rclm Dist Of Ch	$42,916,383.69	Illinois State Checkbook
2021	Healthcare & Family Services	Walgreens Company	$42,829,039.81	Illinois State Checkbook
2018	Revenue	Winnebago County Treasurer Off	$42,818,725.78	Illinois State Checkbook
2023	State Board Of Education	Niles Twp School Treasurer	$42,698,757.12	Illinois State Checkbook
2020	Healthcare & Family Services	Northwestern Memorial Hospital	$42,673,356.83	Illinois State Checkbook
2022	Il Criminal Justice Info Auth	Illinois Coalition Against	$42,669,980.24	Illinois State Checkbook