Year	Employer	Vendor Name	Amount	Source
2021	Revenue	Morton Grove Village Treasurer	$12,263,750.42	Illinois State Checkbook
2025	State Board Of Education	Riverton Community Unit School	$12,263,042.56	Illinois State Checkbook
2019	Healthcare & Family Services	Saint Anthony Hospital	$12,262,050.39	Illinois State Checkbook
2020	State Board Of Education	Ofallon Community Consolidated	$12,258,454.52	Illinois State Checkbook
2023	Healthcare & Family Services	Alden Village North Inc	$12,253,856.77	Illinois State Checkbook
2017	Il Criminal Justice Info Auth	Illinois Coalition Against	$12,252,397.23	Illinois State Checkbook
2024	State Board Of Education	Hillsboro Community Unit	$12,252,031.34	Illinois State Checkbook
2023	Revenue	Sterling City Treasurer	$12,249,261.93	Illinois State Checkbook
2024	State Board Of Education	Dupage High School District 88	$12,249,223.06	Illinois State Checkbook
2017	Transportation	Parsons Brinckerhoff Inc	$12,248,090.43	Illinois State Checkbook
2021	Revenue	Bartlett Village Treasurer	$12,247,039.99	Illinois State Checkbook
2024	Aging	Serenity Home Healthcare Inc	$12,243,894.73	Illinois State Checkbook
2022	State Board Of Education	Mt Zion Community Unit School	$12,243,634.64	Illinois State Checkbook
2017	Aging	U & F Sons Inc	$12,240,642.54	Illinois State Checkbook
2022	Revenue	Franklin Williamson Regional	$12,239,082.90	Illinois State Checkbook
2023	Commerce And Economic Opportun	Community Contacts Inc	$12,236,487.61	Illinois State Checkbook
2025	Healthcare & Family Services	Loretto Hospital	$12,235,517.15	Illinois State Checkbook
2022	Human Services	Cardinal Health Inc	$12,235,410.35	Illinois State Checkbook
2024	Healthcare & Family Services	St Bernard Hospital	$12,234,028.76	Illinois State Checkbook
2025	Capital Development Board	Antarctic Mechanical Services	$12,232,718.94	Illinois State Checkbook
2025	Innovation And Technology	At & T Corp	$12,228,330.53	Illinois State Checkbook
2018	Revenue	Villa Park Village Treasurer	$12,228,225.57	Illinois State Checkbook
2025	Revenue	Batavia Village Treasurer	$12,226,257.84	Illinois State Checkbook
2025	Corrections	Safer Foundation	$12,223,972.02	Illinois State Checkbook
2020	Revenue	Peru City Treasurer	$12,218,432.28	Illinois State Checkbook
2022	Transportation	Arrow Road Construction Co	$12,218,152.27	Illinois State Checkbook
2020	State Board Of Education	Monmouth-Roseville Cusd 238	$12,216,227.16	Illinois State Checkbook
2023	Revenue	Lockport City Treasurer	$12,216,192.59	Illinois State Checkbook
2022	Revenue	North Aurora Village Treasurer	$12,212,571.98	Illinois State Checkbook
2020	Transportation	Mchenry County	$12,206,368.82	Illinois State Checkbook
2018	Transportation	Will County Of	$12,204,581.76	Illinois State Checkbook
2018	Il State Toll Highway Auth	G4s Technology Holdings	$12,200,997.43	Illinois State Checkbook
2021	State Board Of Education	Eldorado Community Dist U-4	$12,198,037.57	Illinois State Checkbook
2025	Transportation	Motorola Solutions Inc	$12,195,885.20	Illinois State Checkbook
2020	State Board Of Education	Antioch Community High School	$12,195,331.45	Illinois State Checkbook
2020	State Board Of Education	Charleston Community Unit	$12,194,934.10	Illinois State Checkbook
2025	Transportation	Johnson Bros Corporationa	$12,192,497.98	Illinois State Checkbook
2025	State Board Of Education	Grant Community High School	$12,184,979.40	Illinois State Checkbook
2021	State Board Of Education	Monmouth-Roseville Cusd 238	$12,177,408.80	Illinois State Checkbook
2021	Healthcare & Family Services	Franciscan Health Olympia	$12,177,197.55	Illinois State Checkbook
2023	Transportation	Core Construction Svc Of Il	$12,177,131.15	Illinois State Checkbook
2024	Il State Toll Highway Auth	Bowman Consulting Group Ltd	$12,173,647.47	Illinois State Checkbook
2020	Healthcare & Family Services	Marklund Childrens Home Inc	$12,172,489.89	Illinois State Checkbook
2018	Aging	Assyrian Universal Alliance Fn	$12,167,705.54	Illinois State Checkbook
2025	State Board Of Education	Ottawa Elementary School Dist	$12,167,250.26	Illinois State Checkbook
2022	Transportation	Mchenry County	$12,165,577.65	Illinois State Checkbook
2020	State Board Of Education	Ball Chatham School Dist 5	$12,164,167.29	Illinois State Checkbook
2022	State Board Of Education	Queen Bee School District No 1	$12,161,832.97	Illinois State Checkbook
2024	State Board Of Education	Community Unit School Dist	$12,154,634.88	Illinois State Checkbook
2022	State Board Of Education	Riverton Community Unit School	$12,153,876.51	Illinois State Checkbook
2018	State Board Of Education	Streator Elementary School	$12,150,341.23	Illinois State Checkbook
2023	Revenue	Jefferson County Treasurer	$12,149,556.72	Illinois State Checkbook
2018	Environmental Protect Agency	City Of Collinsville	$12,148,757.90	Illinois State Checkbook
2022	Supreme Court	Tyler Technologies Inc	$12,147,700.50	Illinois State Checkbook
2019	State Board Of Education	Mchenry Cmnty Consolidated	$12,139,410.62	Illinois State Checkbook
2019	Transportation	Springfield Mass Transit Dist	$12,139,255.96	Illinois State Checkbook
2022	Central Management	Lifeworks Us Ltd	$12,136,366.21	Illinois State Checkbook
2024	Environmental Protect Agency	The Galesburg Sanitary Dist	$12,133,382.06	Illinois State Checkbook
2023	Human Services	Gateway Foundation Inc	$12,129,204.18	Illinois State Checkbook
2018	Human Services	Illinois Network Of Child Care	$12,126,071.33	Illinois State Checkbook
2022	State Board Of Education	Dupage High School District 88	$12,119,117.08	Illinois State Checkbook
2024	Corrections	Bi Inc	$12,118,861.22	Illinois State Checkbook
2019	Healthcare & Family Services	Central Dupage Hospital Assn	$12,118,657.08	Illinois State Checkbook
2019	Revenue	Freeport City Treasurer	$12,117,241.10	Illinois State Checkbook
2017	Environmental Protect Agency	City Of Moline	$12,116,680.26	Illinois State Checkbook
2023	Healthcare & Family Services	Siu Physicians & Surgeons Inc	$12,109,139.40	Illinois State Checkbook
2025	State Board Of Education	Vandalia Community High School	$12,102,872.05	Illinois State Checkbook
2020	Human Services	Centerstone Of Illinois Inc	$12,098,605.90	Illinois State Checkbook
2024	State Board Of Education	Litchfield Community Unit	$12,095,322.65	Illinois State Checkbook
2017	State Board Of Education	Elmwood Park Cusd 401	$12,092,772.59	Illinois State Checkbook
2022	State Board Of Education	Orland School District No 135	$12,087,141.17	Illinois State Checkbook
2025	Secretary Of State	Reaching Across Illinois	$12,085,838.71	Illinois State Checkbook
2023	Healthcare & Family Services	Highland Park Cvs Llc	$12,085,829.70	Illinois State Checkbook
2020	Il State Toll Highway Auth	Cook County	$12,081,900.00	Illinois State Checkbook
2017	Transportation	Rock Island County Mmtd	$12,080,224.62	Illinois State Checkbook
2023	State Board Of Education	Litchfield Community Unit	$12,079,677.22	Illinois State Checkbook
2024	Aging	New Age Elder Care Inc	$12,078,484.42	Illinois State Checkbook
2024	Healthcare & Family Services	Franciscan Health Olympia	$12,078,416.92	Illinois State Checkbook
2025	Environmental Protect Agency	City Of Rochelle Office Of	$12,066,353.92	Illinois State Checkbook
2021	Commerce And Economic Opportun	Ameren Illinois Company	$12,064,984.01	Illinois State Checkbook
2024	Il Student Assistance Comm	Governors State University	$12,057,760.80	Illinois State Checkbook
2022	Revenue	Ottawa City Treasurer	$12,056,653.06	Illinois State Checkbook
2017	Healthcare & Family Services	Bhc Streamwood Hospital Inc	$12,052,707.09	Illinois State Checkbook
2017	Revenue	Bensenville Village Treasurer	$12,052,319.96	Illinois State Checkbook
2023	Transportation	Roadsafe Traffic Systems Inc	$12,049,678.69	Illinois State Checkbook
2017	State Board Of Education	Minooka Community Consolidated	$12,044,326.99	Illinois State Checkbook
2025	State Board Of Education	Community High School Dist 94	$12,040,439.97	Illinois State Checkbook
2023	Revenue	Darien City Treasurer	$12,038,820.58	Illinois State Checkbook
2021	State Board Of Education	Cook Cnty Bd Of Educ Dist 83	$12,038,561.59	Illinois State Checkbook
2025	State Board Of Education	Betty Shabazz International	$12,037,671.84	Illinois State Checkbook
2020	Healthcare & Family Services	Alden Village North Inc	$12,035,203.54	Illinois State Checkbook
2023	Aging	Assyrian National Cuncl Of Il	$12,032,832.11	Illinois State Checkbook
2023	State Board Of Education	North Mac Cusd 34	$12,030,851.82	Illinois State Checkbook
2021	Revenue	Macon County Treasurer General	$12,029,290.25	Illinois State Checkbook
2017	Central Management	Correctional Industries	$12,026,895.56	Illinois State Checkbook
2023	State Board Of Education	Genoa Kingston Community Unit	$12,026,731.33	Illinois State Checkbook
2019	Revenue	Peru City Treasurer	$12,024,975.75	Illinois State Checkbook
2025	Public Health	Public Health Department Of	$12,024,782.39	Illinois State Checkbook
2023	State Board Of Education	Effingham Community Unit No 40	$12,024,187.62	Illinois State Checkbook
2020	Healthcare & Family Services	Jackson Park Hospital Foundati	$12,023,776.92	Illinois State Checkbook