Year	Employer	Vendor Name	Amount	Source
2018	Healthcare & Family Services	Southern Illinois Medical Svcs	$9,278,218.01	Illinois State Checkbook
2025	Corrections	Geo Reentry Services Llc	$9,278,132.15	Illinois State Checkbook
2023	Secretary Of State	Galesburg Public Library	$9,276,569.75	Illinois State Checkbook
2021	Transportation	Dunnet Bay Construction Co	$9,276,380.22	Illinois State Checkbook
2022	State Board Of Education	Pontiac Central School Dist	$9,274,344.33	Illinois State Checkbook
2025	State Board Of Education	Chester Community Unit	$9,274,050.35	Illinois State Checkbook
2025	Transportation	Keller Construction Inc	$9,273,517.85	Illinois State Checkbook
2024	Aging	Destiny Healthcare Svcs Inc	$9,272,836.70	Illinois State Checkbook
2021	Revenue	Waukegan Cusd 60	$9,272,095.35	Illinois State Checkbook
2018	Human Services	Lake County	$9,271,584.02	Illinois State Checkbook
2022	Revenue	Mannheim Elem Sd 83	$9,269,576.92	Illinois State Checkbook
2024	Revenue	Taylorville City Treasurer	$9,267,887.41	Illinois State Checkbook
2023	Il Community College Board	Waubonsee Community College	$9,267,582.99	Illinois State Checkbook
2022	State Board Of Education	Hononegah High School	$9,265,954.72	Illinois State Checkbook
2016	Revenue	Lincolnwood Village Treasurer	$9,265,577.66	Illinois State Checkbook
2021	State Board Of Education	Wabash Community Unit School	$9,264,055.83	Illinois State Checkbook
2021	Il Student Assistance Comm	Aurora University	$9,263,671.50	Illinois State Checkbook
2023	Healthcare & Family Services	Renaissance And Success Nb	$9,263,495.83	Illinois State Checkbook
2019	Revenue	Darien City Treasurer	$9,263,451.94	Illinois State Checkbook
2021	Revenue	Oak Forest Village Treasurer	$9,263,354.88	Illinois State Checkbook
2017	Transportation	Dms Contracting Inc	$9,263,236.36	Illinois State Checkbook
2024	Transportation	Stantec Consulting Services	$9,258,705.70	Illinois State Checkbook
2020	Healthcare & Family Services	Sycamore Cusd 427	$9,258,256.55	Illinois State Checkbook
2025	Revenue	Dekalb County Treasurer	$9,256,095.35	Illinois State Checkbook
2020	Transportation	Madison County	$9,251,933.30	Illinois State Checkbook
2018	State Board Of Education	Lake Villa Comm Consolidated	$9,249,216.80	Illinois State Checkbook
2022	Revenue	Morton Village Treasurer	$9,248,624.70	Illinois State Checkbook
2023	Commerce And Economic Opportun	Sangamon County	$9,246,660.41	Illinois State Checkbook
2025	State Board Of Education	Prairie Central Community	$9,246,648.85	Illinois State Checkbook
2020	Revenue	Lincolnwood Village Treasurer	$9,243,893.56	Illinois State Checkbook
2019	Revenue	Lake In The Hills Vlg Treasure	$9,243,328.31	Illinois State Checkbook
2022	State Board Of Education	Christopher Unit School	$9,242,912.04	Illinois State Checkbook
2023	Revenue	Forest Park Village Treasurer	$9,241,933.78	Illinois State Checkbook
2022	State Board Of Education	Oakwood Cusd 76	$9,240,290.73	Illinois State Checkbook
2024	Capital Development Board	Kroeschell Engineering Co Inc	$9,238,566.85	Illinois State Checkbook
2018	Transportation	Land & Water Resources Inc	$9,238,210.00	Illinois State Checkbook
2022	Human Services	Human Resources Dev Inst Inc	$9,236,811.32	Illinois State Checkbook
2025	Human Services	Healthcare Altrntv Systs Inc	$9,236,570.72	Illinois State Checkbook
2016	Healthcare & Family Services	Gottlieb Memorial Hospital	$9,235,696.87	Illinois State Checkbook
2020	Revenue	Ottawa City Treasurer	$9,235,684.70	Illinois State Checkbook
2017	Human Services	Beacon Health Options Inc	$9,234,845.07	Illinois State Checkbook
2018	Revenue	Glen Ellyn Village Treasurer	$9,232,538.32	Illinois State Checkbook
2022	State Board Of Education	Community Consoldated School	$9,231,090.75	Illinois State Checkbook
2016	Revenue	Mokena Village Treasurer	$9,230,575.46	Illinois State Checkbook
2025	State Board Of Education	Lockport Township High School	$9,229,912.69	Illinois State Checkbook
2022	Transportation	St Clair County Of	$9,229,283.02	Illinois State Checkbook
2022	State Board Of Education	Winnebago Co Dist 323	$9,227,667.40	Illinois State Checkbook
2025	Revenue	Dixon City Treasurer	$9,226,930.20	Illinois State Checkbook
2021	State Board Of Education	Benton Community Consolidated	$9,226,236.71	Illinois State Checkbook
2016	Il State Toll Highway Auth	Burns & Mcdonnell Engering Inc	$9,225,804.39	Illinois State Checkbook
2020	Revenue	Darien City Treasurer	$9,223,882.81	Illinois State Checkbook
2020	State Board Of Education	Kirby School Dist 140	$9,223,528.49	Illinois State Checkbook
2016	Healthcare & Family Services	Unlimited Development Inc	$9,222,567.15	Illinois State Checkbook
2021	Human Services	Greater Chicago Food Dpstry	$9,221,537.28	Illinois State Checkbook
2019	Il State Toll Highway Auth	Plote Construction Inc	$9,220,953.69	Illinois State Checkbook
2020	Il State Toll Highway Auth	Hdr Engineering Inc	$9,220,922.06	Illinois State Checkbook
2023	State Board Of Education	Bensenville Elementary Schl	$9,220,599.95	Illinois State Checkbook
2016	Healthcare & Family Services	Thorek Memorial Hospital	$9,218,611.30	Illinois State Checkbook
2021	Il Community College Board	Kaskaskia College	$9,218,052.48	Illinois State Checkbook
2016	Environmental Protect Agency	City Of Rock Island	$9,217,617.41	Illinois State Checkbook
2023	Healthcare & Family Services	Trinity Medical Center	$9,216,919.78	Illinois State Checkbook
2018	Revenue	Franklin Williamson Regional	$9,216,008.00	Illinois State Checkbook
2023	State Board Of Education	Geneva Cusd 304	$9,210,648.47	Illinois State Checkbook
2021	Public Health	Aids Foundation Of Chicago	$9,209,855.43	Illinois State Checkbook
2023	Commerce And Economic Opportun	Winnetka Village Of	$9,209,719.99	Illinois State Checkbook
2022	State Board Of Education	Lawndale Ed And Reg Network Ch	$9,206,905.32	Illinois State Checkbook
2025	Healthcare & Family Services	Advocate Health Care Network	$9,203,968.16	Illinois State Checkbook
2025	State Board Of Education	Momence Community Unit School	$9,202,413.85	Illinois State Checkbook
2016	Healthcare & Family Services	Lake County	$9,201,533.57	Illinois State Checkbook
2017	State Board Of Education	Ball Chatham School Dist 5	$9,200,345.31	Illinois State Checkbook
2020	Revenue	Jacksonville City Treasurer	$9,199,415.02	Illinois State Checkbook
2025	State Board Of Education	Community Unit School Dist 2	$9,197,716.26	Illinois State Checkbook
2019	Human Services	Community & Ecnmc Dev Assn	$9,196,411.06	Illinois State Checkbook
2020	Transportation	City Of Decatur	$9,196,237.86	Illinois State Checkbook
2021	State Board Of Education	Lasalle Public Elementary	$9,195,986.03	Illinois State Checkbook
2024	State Board Of Education	Community Unit District No 3	$9,195,948.40	Illinois State Checkbook
2016	State Board Of Education	Highland Community Schls Dist	$9,194,397.01	Illinois State Checkbook
2020	Revenue	South Elgin Village Treasurer	$9,194,093.53	Illinois State Checkbook
2019	Revenue	South Elgin Village Treasurer	$9,194,027.14	Illinois State Checkbook
2018	Human Services	Ounce Of Prevention Fund Inc	$9,193,548.92	Illinois State Checkbook
2024	State Board Of Education	Hononegah High School	$9,193,504.14	Illinois State Checkbook
2025	Revenue	Wood River City Treasurer	$9,192,579.98	Illinois State Checkbook
2016	Healthcare & Family Services	Procare Pharmacy Direct Inc	$9,192,497.78	Illinois State Checkbook
2018	Healthcare & Family Services	D & D Services Inc	$9,187,698.35	Illinois State Checkbook
2024	Transportation	Parsons Transportation Group	$9,184,848.83	Illinois State Checkbook
2025	Agriculture	Il Dept Of Agriculture	$9,184,788.98	Illinois State Checkbook
2019	Human Services	Ounce Of Prevention Fund Inc	$9,183,515.46	Illinois State Checkbook
2025	Transportation	Wex Bank	$9,182,786.97	Illinois State Checkbook
2021	State Board Of Education	Betty Shabazz International	$9,180,029.37	Illinois State Checkbook
2022	Healthcare & Family Services	Advocate Sherman Hospital	$9,179,951.62	Illinois State Checkbook
2020	Agriculture	Illinois Dept Of Agriculture	$9,179,764.73	Illinois State Checkbook
2025	State Board Of Education	Easter Seals Metropolitan	$9,177,076.61	Illinois State Checkbook
2023	State Board Of Education	Georgetown Ridge Farm Comm	$9,176,634.40	Illinois State Checkbook
2025	Il Community College Board	Morton College Illinois	$9,175,668.80	Illinois State Checkbook
2021	Revenue	Wood Dale Village Treasurer	$9,174,283.71	Illinois State Checkbook
2016	Revenue	Franklin Williamson Regional	$9,174,166.86	Illinois State Checkbook
2020	Il Student Assistance Comm	Aurora University	$9,172,696.00	Illinois State Checkbook
2025	Commerce And Economic Opportun	Americas Central Port	$9,169,038.35	Illinois State Checkbook
2019	Revenue	Regional Office Education 11	$9,167,326.51	Illinois State Checkbook
2017	Revenue	Burbank City Treasurer	$9,167,181.59	Illinois State Checkbook