Year	Employer	Vendor Name	Amount	Source
2020	State Board Of Education	Urbana School District 116	$24,477,056.46	Illinois State Checkbook
2021	Aging	Northeastern Illinois Area	$24,464,128.54	Illinois State Checkbook
2020	Revenue	Oak Lawn Village Treasurer	$24,452,238.07	Illinois State Checkbook
2022	Revenue	Educational Svc Region Office	$24,451,187.75	Illinois State Checkbook
2024	Healthcare & Family Services	Presence Saints Mary And	$24,441,682.37	Illinois State Checkbook
2022	Revenue	St Clair County Treasurer	$24,439,889.24	Illinois State Checkbook
2021	State Board Of Education	Mascoutah Community Unit	$24,398,518.71	Illinois State Checkbook
2016	Healthcare & Family Services	Blessing Hospital	$24,397,321.10	Illinois State Checkbook
2022	State Board Of Education	Marquardt School District 15	$24,381,727.39	Illinois State Checkbook
2019	Central Management	Aetna Life Insurance Co	$24,379,191.31	Illinois State Checkbook
2016	State Board Of Education	Community Unit School	$24,368,445.92	Illinois State Checkbook
2017	Revenue	Rockford Board Of Education	$24,364,650.72	Illinois State Checkbook
2024	Human Services	Envision Unlimited	$24,361,213.37	Illinois State Checkbook
2020	Transportation	Icc Group Inc	$24,358,183.12	Illinois State Checkbook
2022	Revenue	Glendale Heights Vlg Treasurer	$24,334,662.84	Illinois State Checkbook
2023	Revenue	Dekalb City Treasurer	$24,318,670.71	Illinois State Checkbook
2019	Revenue	Oak Lawn Village Treasurer	$24,313,411.44	Illinois State Checkbook
2023	Aging	Assyrian Universal Alliance Fn	$24,305,087.60	Illinois State Checkbook
2024	Revenue	Ofallon City Treasurer	$24,304,401.22	Illinois State Checkbook
2019	Revenue	Moline City Treasurer	$24,303,403.76	Illinois State Checkbook
2023	Healthcare & Family Services	Advantage Nursing Svcs Inc	$24,301,747.34	Illinois State Checkbook
2016	Healthcare & Family Services	Vhs Of Illinois Inc	$24,298,563.02	Illinois State Checkbook
2023	Transportation	Will County Of	$24,291,882.06	Illinois State Checkbook
2021	Il Student Assistance Comm	Navient Solutions Inc	$24,279,786.78	Illinois State Checkbook
2023	State Board Of Education	Plano C U School	$24,275,891.68	Illinois State Checkbook
2019	Human Services	Illinois Action For Children	$24,271,990.87	Illinois State Checkbook
2017	Transportation	University Of Illinois	$24,263,517.57	Illinois State Checkbook
2023	Revenue	Peoria City	$24,263,273.26	Illinois State Checkbook
2016	Revenue	Quincy City Treasurer	$24,260,993.53	Illinois State Checkbook
2024	State Board Of Education	Marquardt School District 15	$24,255,706.39	Illinois State Checkbook
2025	State Board Of Education	Pekin Public School District 1	$24,252,408.16	Illinois State Checkbook
2021	State Board Of Education	County Of Jackson	$24,245,199.06	Illinois State Checkbook
2025	State Board Of Education	Marquardt School District 15	$24,242,890.17	Illinois State Checkbook
2016	Revenue	Elmhurst City Treasurer	$24,242,756.49	Illinois State Checkbook
2023	Revenue	Wheaton City Treasurer	$24,227,316.76	Illinois State Checkbook
2017	Healthcare & Family Services	Dentaquest Of Illinois Llc	$24,223,578.10	Illinois State Checkbook
2024	State Board Of Education	Community Unit School Dist 303	$24,193,140.20	Illinois State Checkbook
2025	Capital Development Board	Henson Robinson Co	$24,189,120.70	Illinois State Checkbook
2023	Revenue	Highland Park City Treasurer	$24,188,857.45	Illinois State Checkbook
2016	State Board Of Education	West Chicago School Dist 33	$24,177,376.79	Illinois State Checkbook
2021	Aging	Ageoptions Inc	$24,165,009.18	Illinois State Checkbook
2017	State Board Of Education	Board Of Education S D 100	$24,162,851.55	Illinois State Checkbook
2023	Healthcare & Family Services	Advocate Northside	$24,158,841.04	Illinois State Checkbook
2018	Healthcare & Family Services	Central Dupage Hospital Assn	$24,158,213.48	Illinois State Checkbook
2018	Revenue	Moline City Treasurer	$24,156,119.37	Illinois State Checkbook
2020	Revenue	Rockford Board Of Education	$24,142,251.70	Illinois State Checkbook
2023	Il Community College Board	Southwestern Illinois College	$24,138,311.14	Illinois State Checkbook
2018	Il Student Assistance Comm	Southern Illinois University	$24,127,990.93	Illinois State Checkbook
2016	Supreme Court	Cook County	$24,112,192.00	Illinois State Checkbook
2025	Healthcare & Family Services	Cnsi Holdings Llc	$24,111,792.72	Illinois State Checkbook
2020	Healthcare & Family Services	State Of Michigan Dept Of	$24,098,146.26	Illinois State Checkbook
2021	Revenue	East Peoria City Treasurer	$24,092,379.62	Illinois State Checkbook
2019	State Board Of Education	Belleville Township High	$24,079,321.28	Illinois State Checkbook
2016	State Board Of Education	Champaign Comm Schl Dist No 4	$24,078,015.88	Illinois State Checkbook
2017	State Board Of Education	Freeport School District 145	$24,075,720.55	Illinois State Checkbook
2024	Il State Toll Highway Auth	Wsp Usa Inc	$24,069,948.83	Illinois State Checkbook
2017	Human Services	Illinois Action For Children	$24,064,154.09	Illinois State Checkbook
2019	Transportation	Peter Baker & Son Co	$24,063,617.65	Illinois State Checkbook
2020	Revenue	Crystal Lake City Treasurer	$24,061,961.35	Illinois State Checkbook
2024	State Board Of Education	Beach Park Consolidated Schl	$24,056,032.68	Illinois State Checkbook
2022	State Board Of Education	East Moline School District 37	$24,055,636.61	Illinois State Checkbook
2024	Healthcare & Family Services	Larabida Childrens Hospital	$24,044,164.59	Illinois State Checkbook
2024	Transportation	Will County Of	$24,033,003.87	Illinois State Checkbook
2023	Revenue	Township High School Dist 214	$24,023,280.94	Illinois State Checkbook
2016	Transportation	Bnsf Railway Company	$24,008,524.99	Illinois State Checkbook
2022	State Board Of Education	Pekin Public School District 1	$24,003,202.33	Illinois State Checkbook
2024	Aging	Care For Soul Inc	$23,993,935.14	Illinois State Checkbook
2017	State Board Of Education	Community Unit School District	$23,991,709.72	Illinois State Checkbook
2022	Revenue	Granite City Cusd 9	$23,978,717.66	Illinois State Checkbook
2023	Il Community College Board	Community College Dist 502	$23,965,700.02	Illinois State Checkbook
2021	Healthcare & Family Services	Vna Health Care	$23,960,844.61	Illinois State Checkbook
2022	Transportation	Will County Of	$23,957,311.49	Illinois State Checkbook
2019	State Board Of Education	Community Unit District No 203	$23,942,476.68	Illinois State Checkbook
2022	Healthcare & Family Services	Advantage Nursing Svcs Inc	$23,919,208.10	Illinois State Checkbook
2025	Human Services	Illinois Coalition Against	$23,914,221.71	Illinois State Checkbook
2017	State Board Of Education	Community Unit School	$23,907,723.03	Illinois State Checkbook
2023	Revenue	Oswego Village Treasurer	$23,901,606.47	Illinois State Checkbook
2024	Revenue	Tazewell County Treasurer	$23,898,892.93	Illinois State Checkbook
2022	Revenue	Regional Office Of Education	$23,898,488.10	Illinois State Checkbook
2017	Revenue	Quincy City Treasurer	$23,883,067.79	Illinois State Checkbook
2022	State Board Of Education	Crystal Lake Community	$23,882,596.45	Illinois State Checkbook
2019	Healthcare & Family Services	Memorial Medical Center	$23,872,143.85	Illinois State Checkbook
2018	Central Management	Medco Health Solutions Inc	$23,865,178.25	Illinois State Checkbook
2022	Revenue	Melrose Park Village Treasurer	$23,864,602.66	Illinois State Checkbook
2018	Employment Security	Employment Security Dept Of	$23,858,758.67	Illinois State Checkbook
2024	Comptroller	Employment Security Dept Of	$23,852,151.06	Illinois State Checkbook
2024	Environmental Protect Agency	City Of Waterloo	$23,837,718.97	Illinois State Checkbook
2020	Revenue	Oak Brook Village Treasurer	$23,834,445.46	Illinois State Checkbook
2018	Revenue	Quincy City Treasurer	$23,819,940.74	Illinois State Checkbook
2025	State Board Of Education	Herrin Community Unit School	$23,818,863.00	Illinois State Checkbook
2023	Revenue	Lasalle County Treasurer	$23,806,040.41	Illinois State Checkbook
2023	State Board Of Education	Marquardt School District 15	$23,804,307.21	Illinois State Checkbook
2019	Revenue	Crystal Lake City Treasurer	$23,791,654.52	Illinois State Checkbook
2022	Revenue	Romeoville Village Treasurer	$23,785,880.12	Illinois State Checkbook
2020	Revenue	St Charles City Treasurer	$23,769,614.73	Illinois State Checkbook
2017	State Board Of Education	West Chicago School Dist 33	$23,767,465.18	Illinois State Checkbook
2022	Revenue	Cook County Forest Preserve	$23,765,346.72	Illinois State Checkbook
2016	State Board Of Education	Board Of Education S D 100	$23,757,209.30	Illinois State Checkbook
2016	Revenue	Oak Lawn Village Treasurer	$23,751,070.92	Illinois State Checkbook
2024	State Board Of Education	Crystal Lake Community	$23,748,237.73	Illinois State Checkbook