Year	Employer	Vendor Name	Amount	Source
2020	Healthcare & Family Services	Swedish Covenant Hospital	$23,047,492.91	Illinois State Checkbook
2021	Revenue	Hanover Park Village Treasurer	$23,045,873.21	Illinois State Checkbook
2024	Revenue	Algonquin Village Treasurer	$23,040,251.97	Illinois State Checkbook
2023	Transportation	Icc Group Inc	$23,036,368.49	Illinois State Checkbook
2023	State Board Of Education	Rantoul City School Dist 137	$23,021,247.34	Illinois State Checkbook
2025	Revenue	Urbana City Treasurer	$23,021,221.85	Illinois State Checkbook
2020	Human Services	Chicago City Of	$23,018,194.33	Illinois State Checkbook
2022	State Board Of Education	Plano C U School	$23,015,135.65	Illinois State Checkbook
2024	Human Services	Illinois Board Of Higher Educ	$23,010,797.29	Illinois State Checkbook
2024	State Board Of Education	Plano C U School	$23,005,776.32	Illinois State Checkbook
2023	Transportation	The Kilian Corporation	$23,004,677.64	Illinois State Checkbook
2017	State Board Of Education	Moline-cole Valley Community	$22,997,778.41	Illinois State Checkbook
2025	Capital Development Board	S M Wilson & Co	$22,995,259.44	Illinois State Checkbook
2020	Revenue	Palatine Village Treasurer	$22,993,879.77	Illinois State Checkbook
2022	Revenue	Pekin City Treasurer	$22,985,462.42	Illinois State Checkbook
2018	Revenue	Addison Village Treasurer	$22,973,143.44	Illinois State Checkbook
2025	State Board Of Education	Consolidated Hg Schl Dist 230	$22,966,682.90	Illinois State Checkbook
2024	Environmental Protect Agency	Village Of Oak Lawn	$22,950,531.84	Illinois State Checkbook
2022	Revenue	Dekalb City Treasurer	$22,943,196.67	Illinois State Checkbook
2023	Healthcare & Family Services	Larabida Childrens Hospital	$22,926,055.76	Illinois State Checkbook
2019	Revenue	Vernon Hills Village Treasurer	$22,890,976.22	Illinois State Checkbook
2025	Human Services	Seiu Hlthcare Il Home Care &	$22,879,761.48	Illinois State Checkbook
2016	State Board Of Education	Comm Cons School District 15	$22,875,234.11	Illinois State Checkbook
2025	Agriculture	Human Services Dept Of	$22,872,405.85	Illinois State Checkbook
2023	Revenue	Waukegan Cusd 60	$22,844,110.67	Illinois State Checkbook
2024	State Board Of Education	Edwardsville Community Unit	$22,838,881.05	Illinois State Checkbook
2020	State Board Of Education	Mascoutah Community Unit	$22,833,398.50	Illinois State Checkbook
2021	Healthcare & Family Services	Memorial Medical Center	$22,822,494.84	Illinois State Checkbook
2022	Transportation	R W Dunteman Company	$22,799,678.52	Illinois State Checkbook
2020	Revenue	Vernon Hills Village Treasurer	$22,795,700.02	Illinois State Checkbook
2016	Il State Toll Highway Auth	R W Dunteman Company	$22,783,853.47	Illinois State Checkbook
2019	Revenue	Palatine Village Treasurer	$22,762,195.95	Illinois State Checkbook
2021	State Board Of Education	Concept Schools Inc	$22,752,362.46	Illinois State Checkbook
2022	Transportation	Kraemer North America Llc	$22,749,224.09	Illinois State Checkbook
2018	State Board Of Education	Galesburg Community Unit Schoo	$22,706,675.20	Illinois State Checkbook
2024	State Board Of Education	Kewanee Community Unit School	$22,695,561.53	Illinois State Checkbook
2025	Revenue	Carpentersville Vlg Treasurer	$22,676,109.02	Illinois State Checkbook
2020	State Board Of Education	Stickney Township School Treas	$22,666,217.37	Illinois State Checkbook
2021	Revenue	Peoria County Treasurer	$22,665,867.77	Illinois State Checkbook
2019	Capital Development Board	Ihc Construction Companies Llc	$22,660,996.99	Illinois State Checkbook
2024	Children And Family Services	Deloitte Consulting Llp	$22,638,730.20	Illinois State Checkbook
2018	State Board Of Education	Crete Monee Community Unit	$22,637,528.58	Illinois State Checkbook
2022	Healthcare & Family Services	Advocate Northside	$22,635,583.00	Illinois State Checkbook
2024	Revenue	Urbana City Treasurer	$22,618,088.33	Illinois State Checkbook
2016	Revenue	Palatine Village Treasurer	$22,589,268.45	Illinois State Checkbook
2019	Transportation	Chicago Metropolitan Agency	$22,583,377.14	Illinois State Checkbook
2022	Revenue	Collinsville City Treasurer	$22,577,139.86	Illinois State Checkbook
2024	Il State Toll Highway Auth	Hntb Corp	$22,574,353.45	Illinois State Checkbook
2017	Healthcare & Family Services	Sarah Bush Lincoln Health Ctr	$22,562,826.91	Illinois State Checkbook
2025	State Board Of Education	Community Unit School Dist 303	$22,560,366.16	Illinois State Checkbook
2025	Healthcare & Family Services	Memorial Medical Center	$22,560,044.76	Illinois State Checkbook
2017	Healthcare & Family Services	Saint Anthony Hospital	$22,556,128.60	Illinois State Checkbook
2023	State Board Of Education	Community High Schl Dist 155	$22,552,580.33	Illinois State Checkbook
2017	State Board Of Education	Quincy Public Schools	$22,547,431.93	Illinois State Checkbook
2025	Natural Resources	University Of Illinois	$22,531,473.14	Illinois State Checkbook
2022	Revenue	Oswego Village Treasurer	$22,527,248.84	Illinois State Checkbook
2018	Revenue	Crystal Lake City Treasurer	$22,524,520.08	Illinois State Checkbook
2025	Healthcare & Family Services	Presence Central And Suburban	$22,522,904.86	Illinois State Checkbook
2021	Innovation And Technology	Mckinsey & Company Inc	$22,520,266.00	Illinois State Checkbook
2025	State Board Of Education	Sycamore Cusd 427	$22,515,678.61	Illinois State Checkbook
2023	State Board Of Education	Richland County Cusd 1	$22,511,631.17	Illinois State Checkbook
2021	Revenue	Belleville City Treasurer	$22,510,774.17	Illinois State Checkbook
2023	Revenue	Ofallon City Treasurer	$22,508,397.44	Illinois State Checkbook
2018	Human Services	Illinois Action For Children	$22,501,755.08	Illinois State Checkbook
2025	State Board Of Education	Day Care Resources	$22,495,844.30	Illinois State Checkbook
2018	Il Student Assistance Comm	Northern Illinois University	$22,489,252.85	Illinois State Checkbook
2025	Healthcare & Family Services	Optum Government Solutions Inc	$22,485,027.69	Illinois State Checkbook
2021	Transportation	National Railroad Passenger Co	$22,471,432.26	Illinois State Checkbook
2017	Transportation	Berger Excavating Contractors	$22,470,532.36	Illinois State Checkbook
2021	Innovation And Technology	Accenture Llp	$22,452,516.80	Illinois State Checkbook
2023	Revenue	Monticello Cusd 25	$22,452,465.71	Illinois State Checkbook
2019	Healthcare & Family Services	Advocate Northside	$22,450,318.66	Illinois State Checkbook
2025	Revenue	Carbondale City Treasurer	$22,444,419.08	Illinois State Checkbook
2020	State Board Of Education	County Of Jackson	$22,427,925.23	Illinois State Checkbook
2018	Healthcare & Family Services	Jackson Park Hospital Foundati	$22,423,772.50	Illinois State Checkbook
2025	Corrections	State Of Il-Corrections	$22,423,702.42	Illinois State Checkbook
2024	State Board Of Education	Leyden High School Dist No 212	$22,423,210.79	Illinois State Checkbook
2024	Revenue	Carpentersville Vlg Treasurer	$22,422,744.48	Illinois State Checkbook
2023	Healthcare & Family Services	Javon Bea Hospital	$22,419,924.86	Illinois State Checkbook
2017	State Board Of Education	Galesburg Community Unit Schoo	$22,414,567.04	Illinois State Checkbook
2019	Transportation	K-Five Construction Corp	$22,387,110.21	Illinois State Checkbook
2024	Revenue	Oak Park Village Treasurer	$22,374,563.62	Illinois State Checkbook
2017	State Board Of Education	Niles Twp School Treasurer	$22,371,445.34	Illinois State Checkbook
2018	Illinois Gaming Board	City Of Des Plaines	$22,369,373.56	Illinois State Checkbook
2024	State Board Of Education	Calumet Township School Treas	$22,365,930.59	Illinois State Checkbook
2016	State Board Of Education	Belleville School District 118	$22,355,219.66	Illinois State Checkbook
2021	Revenue	Oak Brook Village Treasurer	$22,352,906.41	Illinois State Checkbook
2024	Revenue	Cook County Treasurer Income T	$22,351,543.11	Illinois State Checkbook
2025	Revenue	Wheeling Village Treasurer	$22,338,719.09	Illinois State Checkbook
2018	Revenue	St Charles City Treasurer	$22,326,667.15	Illinois State Checkbook
2022	Corrections	M J Kellner Company Inc	$22,324,762.31	Illinois State Checkbook
2016	Human Services	Hoosier Care Inc	$22,315,200.18	Illinois State Checkbook
2024	Revenue	Sangamon County Treasurer	$22,312,935.72	Illinois State Checkbook
2019	Illinois Gaming Board	City Of Des Plaines	$22,312,100.91	Illinois State Checkbook
2025	Il State Toll Highway Auth	Transystems Corporation	$22,311,855.25	Illinois State Checkbook
2025	Revenue	Cook County Treasurer Income T	$22,301,162.98	Illinois State Checkbook
2017	Transportation	Keeley & Sons Inc	$22,300,680.36	Illinois State Checkbook
2024	Transportation	Rush Truck Ctrs Of	$22,280,873.23	Illinois State Checkbook
2025	Healthcare & Family Services	Sycamore Cusd 427	$22,279,454.71	Illinois State Checkbook
2023	Healthcare & Family Services	Osf Healthcare System	$22,267,554.98	Illinois State Checkbook