Year	Employer	Vendor Name	Amount	Source
2016	Healthcare & Family Services	Meridian Health Plan Inc	$1,008,914,506.07	Illinois State Checkbook
2020	State Board Of Education	Chicago Board Of Education	$1,002,929,581.57	Illinois State Checkbook
2017	Healthcare & Family Services	Health Care Service Corp	$981,480,527.54	Illinois State Checkbook
2017	Healthcare & Family Services	Meridian Health Plan Inc	$973,793,823.19	Illinois State Checkbook
2019	Healthcare & Family Services	Molina Healthcare Of Illinois	$967,069,980.97	Illinois State Checkbook
2025	Revenue	Sales Tax Securitization Corp	$947,772,522.13	Illinois State Checkbook
2016	Revenue	Chicago City Treasurer	$945,171,250.24	Illinois State Checkbook
2018	Healthcare & Family Services	Aetna Better Health Inc	$941,663,080.80	Illinois State Checkbook
2025	Healthcare & Family Services	Department Of Health And	$930,327,194.41	Illinois State Checkbook
2024	Healthcare & Family Services	Department Of Health And	$928,938,002.39	Illinois State Checkbook
2017	Revenue	Chicago City Treasurer	$926,896,770.65	Illinois State Checkbook
2017	Healthcare & Family Services	Aetna Better Health Inc	$925,179,742.77	Illinois State Checkbook
2024	Revenue	Sales Tax Securitization Corp	$913,225,278.67	Illinois State Checkbook
2019	Revenue	Cook County Treasurer	$905,785,416.94	Illinois State Checkbook
2020	Revenue	Cook County Treasurer	$896,542,113.40	Illinois State Checkbook
2023	Revenue	Sales Tax Securitization Corp	$895,618,311.99	Illinois State Checkbook
2018	Revenue	Cook County Treasurer	$893,525,464.28	Illinois State Checkbook
2017	Revenue	Cook County Treasurer	$887,026,727.17	Illinois State Checkbook
2023	Healthcare & Family Services	Department Of Health And	$847,365,491.24	Illinois State Checkbook
2017	Governor's Off Of Mgt & Budget	Us Bank National Association	$845,908,993.54	Illinois State Checkbook
2017	Healthcare & Family Services	Illinicare Health Plan Inc	$841,651,732.00	Illinois State Checkbook
2022	Revenue	Sales Tax Securitization Corp	$825,932,546.69	Illinois State Checkbook
2016	Healthcare & Family Services	Health Care Service Corp	$819,878,836.36	Illinois State Checkbook
2021	Revenue	Cook County Treasurer	$801,293,777.87	Illinois State Checkbook
2019	State Board Of Education	Chicago Board Of Education	$761,375,127.45	Illinois State Checkbook
2018	State Board Of Education	Chicago Board Of Education	$752,257,723.04	Illinois State Checkbook
2022	Governor's Off Of Mgt & Budget	Us Bank National Association	$751,323,004.75	Illinois State Checkbook
2018	Healthcare & Family Services	Molina Healthcare Of Illinois	$726,262,153.97	Illinois State Checkbook
2022	Healthcare & Family Services	Department Of Health And	$721,144,763.61	Illinois State Checkbook
2020	Revenue	Sales Tax Securitization Corp	$717,723,990.68	Illinois State Checkbook
2016	Healthcare & Family Services	Family Health Network Inc	$699,897,043.41	Illinois State Checkbook
2019	Revenue	Sales Tax Securitization Corp	$684,018,716.06	Illinois State Checkbook
2020	Healthcare & Family Services	Department Of Health And	$666,739,591.45	Illinois State Checkbook
2021	Healthcare & Family Services	Department Of Health And	$639,121,421.70	Illinois State Checkbook
2024	State Board Of Education	Bloom Twp School Treasurer	$636,649,322.03	Illinois State Checkbook
2023	Revenue	Chicago Board Of Education	$636,027,753.98	Illinois State Checkbook
2025	State Board Of Education	Bloom Twp School Treasurer	$635,081,341.73	Illinois State Checkbook
2019	Healthcare & Family Services	Department Of Health And	$625,592,160.65	Illinois State Checkbook
2023	State Board Of Education	Bloom Twp School Treasurer	$620,558,349.39	Illinois State Checkbook
2021	Revenue	Sales Tax Securitization Corp	$620,320,084.51	Illinois State Checkbook
2021	Transportation	Regional Transportation	$617,830,389.93	Illinois State Checkbook
2018	Revenue	Chicago City Treasurer	$613,415,515.97	Illinois State Checkbook
2022	Revenue	Illinois Housing Dev Authority	$606,861,602.98	Illinois State Checkbook
2018	Healthcare & Family Services	Harmony Health Plan Of Il Inc	$599,859,960.51	Illinois State Checkbook
2017	Healthcare & Family Services	Department Of Health And	$591,417,009.60	Illinois State Checkbook
2020	Transportation	Regional Transportation	$590,810,723.65	Illinois State Checkbook
2025	Governor's Off Of Mgt & Budget	Us Bank National Association	$590,277,278.12	Illinois State Checkbook
2023	Governor's Off Of Mgt & Budget	Us Bank National Association	$590,212,328.96	Illinois State Checkbook
2024	Governor's Off Of Mgt & Budget	Us Bank National Association	$587,934,695.32	Illinois State Checkbook
2022	Revenue	Chicago Board Of Education	$562,743,229.61	Illinois State Checkbook
2018	Healthcare & Family Services	Department Of Health And	$551,405,981.74	Illinois State Checkbook
2021	Governor's Off Of Mgt & Budget	Us Bank National Association	$549,258,890.24	Illinois State Checkbook
2022	State Board Of Education	Bloom Twp School Treasurer	$549,104,805.86	Illinois State Checkbook
2025	Revenue	Chicago City Treasurer	$547,190,919.37	Illinois State Checkbook
2017	Healthcare & Family Services	Family Health Network Inc	$534,943,834.00	Illinois State Checkbook
2023	Revenue	Chicago City Of	$525,267,939.04	Illinois State Checkbook
2023	Revenue	Illinois Housing Dev Authority	$520,813,922.57	Illinois State Checkbook
2016	Revenue	Cook County Treasurer	$517,330,225.49	Illinois State Checkbook
2017	Healthcare & Family Services	Molina Healthcare Of Illinois	$511,627,230.24	Illinois State Checkbook
2019	Governor's Off Of Mgt & Budget	Us Bank National Association	$508,595,589.49	Illinois State Checkbook
2019	Healthcare & Family Services	Harmony Health Plan Of Il Inc	$508,345,695.30	Illinois State Checkbook
2022	Human Services	Illinois Network Of Child Care	$506,690,192.00	Illinois State Checkbook
2024	Revenue	Chicago City Treasurer	$503,835,317.97	Illinois State Checkbook
2025	Il State Toll Highway Auth	The Bank Of New York Mellon	$500,294,535.24	Illinois State Checkbook
2020	Governor's Off Of Mgt & Budget	Us Bank National Association	$497,844,348.55	Illinois State Checkbook
2024	Il State Toll Highway Auth	The Bank Of New York Mellon	$493,683,464.50	Illinois State Checkbook
2023	Il State Toll Highway Auth	The Bank Of New York Mellon	$493,667,555.42	Illinois State Checkbook
2016	Transportation	Regional Transportation	$489,754,702.61	Illinois State Checkbook
2023	Revenue	Chicago City Treasurer	$487,896,860.79	Illinois State Checkbook
2022	Il State Toll Highway Auth	The Bank Of New York Mellon	$484,276,410.49	Illinois State Checkbook
2018	Governor's Off Of Mgt & Budget	Us Bank National Association	$483,841,217.26	Illinois State Checkbook
2021	Transportation	Chicago City Of	$477,790,655.91	Illinois State Checkbook
2020	State Board Of Education	Bloom Twp School Treasurer	$465,701,452.02	Illinois State Checkbook
2022	Revenue	Chicago City Of	$464,745,406.05	Illinois State Checkbook
2016	Healthcare & Family Services	Molina Healthcare Of Illinois	$461,126,121.82	Illinois State Checkbook
2021	State Board Of Education	Bloom Twp School Treasurer	$460,834,011.85	Illinois State Checkbook
2020	Healthcare & Family Services	Nextlevel Health Partners Inc	$460,514,029.90	Illinois State Checkbook
2016	Governor's Off Of Mgt & Budget	Us Bank National Association	$459,913,549.72	Illinois State Checkbook
2021	Revenue	Illinois Housing Dev Authority	$456,977,414.99	Illinois State Checkbook
2021	Il State Toll Highway Auth	The Bank Of New York Mellon	$456,831,323.37	Illinois State Checkbook
2016	Healthcare & Family Services	Health Alliance Connect Inc	$445,692,837.33	Illinois State Checkbook
2022	Revenue	Chicago City Treasurer	$436,339,685.99	Illinois State Checkbook
2020	Il State Toll Highway Auth	The Bank Of New York Mellon	$429,306,275.18	Illinois State Checkbook
2024	Revenue	Chicago Board Of Education	$418,930,227.55	Illinois State Checkbook
2019	Il State Toll Highway Auth	The Bank Of New York Mellon	$416,693,089.68	Illinois State Checkbook
2018	Il State Toll Highway Auth	The Bank Of New York Mellon	$410,325,315.85	Illinois State Checkbook
2016	Healthcare & Family Services	Harmony Health Plan Of Il Inc	$408,831,290.55	Illinois State Checkbook
2016	Healthcare & Family Services	Department Of Health And	$403,228,250.25	Illinois State Checkbook
2016	Il State Toll Highway Auth	The Bank Of New York Mellon	$401,343,496.26	Illinois State Checkbook
2025	State Board Of Education	School District U-46	$400,910,657.41	Illinois State Checkbook
2021	Il Emergency Management Agcy	State Of Illinois Emergency	$397,748,046.15	Illinois State Checkbook
2022	Healthcare & Family Services	Favorite Healthcare Staffing	$388,385,785.07	Illinois State Checkbook
2019	Transportation	Regional Transportation	$376,383,239.81	Illinois State Checkbook
2021	Revenue	Chicago City Treasurer	$373,755,707.12	Illinois State Checkbook
2023	State Board Of Education	School District U-46	$372,062,048.66	Illinois State Checkbook
2024	State Board Of Education	School District U-46	$366,383,132.76	Illinois State Checkbook
2024	State Board Of Education	School District 205 Board Of	$363,602,606.64	Illinois State Checkbook
2025	Aging	Hah Holdings Llc	$363,288,295.38	Illinois State Checkbook
2024	Transportation	United Contractors Midwest Inc	$356,319,039.98	Illinois State Checkbook
2017	Healthcare & Family Services	Harmony Health Plan Of Il Inc	$356,169,722.99	Illinois State Checkbook