Year	Employer	Vendor Name	Amount	Source
2017	State Board Of Education	Community Unit School	$23,907,723.03	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
2018	Employment Security	Employment Security Dept Of	$23,858,758.67	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
2019	Revenue	Crystal Lake City Treasurer	$23,791,654.52	Illinois State Checkbook
2022	Lump Sums And Other Purposes	Secretary Of State	$23,780,606.62	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
2019	Revenue	Oak Brook Village Treasurer	$23,744,271.69	Illinois State Checkbook
2020	State Board Of Education	Yorkville Comm Unit Dist 115	$23,744,226.06	Illinois State Checkbook
2017	Revenue	Oak Brook Village Treasurer	$23,711,923.74	Illinois State Checkbook
2021	Transportation	William Charles Constrctn Llc	$23,699,190.25	Illinois State Checkbook
2022	Revenue	Berwyn Municipal	$23,690,798.71	Illinois State Checkbook
2019	Revenue	Lombard Village Treasurer	$23,688,573.12	Illinois State Checkbook
2021	State Board Of Education	Mattoon Community School	$23,669,981.80	Illinois State Checkbook
2017	Aging	The Catholic Charities Of The	$23,634,999.85	Illinois State Checkbook
2017	Capital Development Board	River City Construction Llc	$23,613,537.04	Illinois State Checkbook
2020	Il State Toll Highway Auth	Jacobs Engineering Group Inc	$23,588,560.77	Illinois State Checkbook
2020	Employment Security	Employment Security Dept Of	$23,564,636.19	Illinois State Checkbook
2020	Transportation	Rush Truck Ctrs Of	$23,556,655.54	Illinois State Checkbook
2019	Revenue	St Charles City Treasurer	$23,552,777.66	Illinois State Checkbook
2021	Revenue	Marion City Treasurer	$23,544,867.97	Illinois State Checkbook
2020	Aging	The Catholic Charities Of The	$23,534,454.61	Illinois State Checkbook
2017	Healthcare & Family Services	Jackson Park Hospital Foundati	$23,533,981.36	Illinois State Checkbook
2020	Transportation	Lake County	$23,532,597.81	Illinois State Checkbook
2017	Transportation	Plote Construction Inc	$23,530,493.35	Illinois State Checkbook
2019	Il State Toll Highway Auth	Aecom Technical Services Inc	$23,510,656.38	Illinois State Checkbook
2021	Il State Toll Highway Auth	Oneil Industries Inc	$23,502,063.47	Illinois State Checkbook
2021	Transportation	University Of Illinois	$23,499,202.49	Illinois State Checkbook
2019	Transportation	Halverson Construction Co Inc	$23,487,732.31	Illinois State Checkbook
2017	State Board Of Education	Champaign Comm Schl Dist No 4	$23,467,218.90	Illinois State Checkbook
2020	Healthcare & Family Services	Memorial Medical Center	$23,448,154.62	Illinois State Checkbook
2019	Environmental Protect Agency	Village Of Frankfort	$23,434,106.85	Illinois State Checkbook
2019	State Board Of Education	County Of Jackson	$23,397,448.49	Illinois State Checkbook
2021	Transportation	K-Five Construction Corp	$23,393,783.41	Illinois State Checkbook
2021	Healthcare & Family Services	Advocate Northside	$23,391,129.65	Illinois State Checkbook
2018	State Board Of Education	Community Unit School Dist 200	$23,387,709.50	Illinois State Checkbook
2022	Revenue	Carol Stream Village Treasurer	$23,385,300.25	Illinois State Checkbook
2019	State Board Of Education	Community Unit School Dist 200	$23,368,596.91	Illinois State Checkbook
2018	Revenue	Oak Lawn Village Treasurer	$23,359,541.04	Illinois State Checkbook
2021	State Board Of Education	Harvard Community Unit	$23,350,059.15	Illinois State Checkbook
2019	Environmental Protect Agency	Kishwaukee Water Reclamation	$23,348,009.16	Illinois State Checkbook
2021	Aging	European Service At Home Inc	$23,343,525.69	Illinois State Checkbook
2019	Il Student Assistance Comm	Illinois State University	$23,330,394.18	Illinois State Checkbook
2018	Revenue	Oak Brook Village Treasurer	$23,312,121.17	Illinois State Checkbook
2017	Transportation	Fh Paschen S N Nielsen &	$23,280,858.60	Illinois State Checkbook
2021	Human Services	Community Living Options Inc	$23,272,923.52	Illinois State Checkbook
2018	Central Management	Aetna Life Insurance Co	$23,254,218.33	Illinois State Checkbook
2021	Il Student Assistance Comm	Pennsylvania Higher Education	$23,245,546.28	Illinois State Checkbook
2022	Transportation	Chicago Metropolitan Agency	$23,229,393.50	Illinois State Checkbook
2017	Revenue	Oak Lawn Village Treasurer	$23,214,481.01	Illinois State Checkbook
2021	Aging	The Catholic Charities Of The	$23,201,376.09	Illinois State Checkbook
2019	State Board Of Education	Crete Monee Community Unit	$23,190,024.96	Illinois State Checkbook
2020	Transportation	J A Johnson Paving	$23,186,172.44	Illinois State Checkbook
2020	Revenue	East Peoria City Treasurer	$23,164,256.49	Illinois State Checkbook
2019	State Board Of Education	Community Unit School Dist 303	$23,127,818.77	Illinois State Checkbook
2017	Human Services	Chicago City Of	$23,127,628.57	Illinois State Checkbook
2022	Revenue	Highland Park City Treasurer	$23,103,766.73	Illinois State Checkbook
2022	Il State Toll Highway Auth	Curran Contracting Company	$23,094,623.59	Illinois State Checkbook
2017	Aging	Gareda Llc	$23,084,761.62	Illinois State Checkbook
2018	Supreme Court	Cook County	$23,075,821.36	Illinois State Checkbook
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
2020	Human Services	Chicago City Of	$23,018,194.33	Illinois State Checkbook
2017	State Board Of Education	Moline-cole Valley Community	$22,997,778.41	Illinois State Checkbook
2020	Revenue	Palatine Village Treasurer	$22,993,879.77	Illinois State Checkbook
2018	Revenue	Addison Village Treasurer	$22,973,143.44	Illinois State Checkbook
2022	Revenue	Dekalb City Treasurer	$22,943,196.67	Illinois State Checkbook
2019	Revenue	Vernon Hills Village Treasurer	$22,890,976.22	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
2020	Revenue	Vernon Hills Village Treasurer	$22,795,700.02	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
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
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
2019	Transportation	Chicago Metropolitan Agency	$22,583,377.14	Illinois State Checkbook
2022	Revenue	Collinsville City Treasurer	$22,577,139.86	Illinois State Checkbook
2017	Healthcare & Family Services	Sarah Bush Lincoln Health Ctr	$22,562,826.91	Illinois State Checkbook
2017	Healthcare & Family Services	Saint Anthony Hospital	$22,556,128.60	Illinois State Checkbook
2017	State Board Of Education	Quincy Public Schools	$22,547,431.93	Illinois State Checkbook
2018	Revenue	Crystal Lake City Treasurer	$22,524,520.08	Illinois State Checkbook
2021	Innovation And Technology	Mckinsey & Company Inc	$22,520,266.00	Illinois State Checkbook
2021	Revenue	Belleville City Treasurer	$22,510,774.17	Illinois State Checkbook
2018	Human Services	Illinois Action For Children	$22,501,755.08	Illinois State Checkbook
2018	Il Student Assistance Comm	Northern Illinois University	$22,489,252.85	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
2019	Healthcare & Family Services	Advocate Northside	$22,450,318.66	Illinois State Checkbook