RANK – COMPANY – CITY – EMPLOYEES
1 – McDonald’s – Oak Brook – 375,000
2 – Walgreens – Deerfield – 253,400
3 – Sears Holdings – Hoffman Estates – 140,000
4 – Caterpillar – Deerfield – 95,400
5 – United Airlines – Chicago – 90,600
6 – Mondelez International – Deerfield – 90,000
7 – JLL – Chicago – 77,300
8 – Abbott – North Chicago – 75,000
9 – John Deere – Moline – 56,767
10 – ITW – Glenview – 50,000
11 – Upp Technology – Villa Park – 50,000
12 – Baxter International – Deerfield – 48,000
13 – Hyatt – Chicago – 45,000
14 – Allstate – Northbrook – 43,275
15 – LKQ – Chicago – 42,500
16 – Exelon – Chicago – 34,396
17 – Veolia Environmental Services – Northbrook – 32,950
18 – Tenneco – Lake Forest – 32,000
19 – Elite Staffing – Chicago – 32,000
20 – ADM – Chicago – 31,800
21 – Jewel-Osco – Chicago – 30,000
22 – Dover – Downers Grove – 29,000
23 – AbbVie – Lake Bluff – 29,000
24 – Durham School Services – Lisle – 26,151
25 – McDermott Will & Emery – Chicago – 25,000
26 – US Foods – Rosemont – 25,000
27 – Grainger – Lake Forest – 25,000
28 – Stericycle – Lake Forest – 25,000
29 – Arthur J Gallagher & Co – Itasca – 24,790
30 – Northwestern Medicine – Chicago – 24,507
31 – Fortune Brands Home & Security – Deerfield – 22,700
32 – The Owens Group – Chicago – 22,500
33 – LSC Communications – Chicago – 22,000
34 – Ulta Beauty – Bolingbrook – 21,700
35 – Aldi – Batavia – 20,335
36 – Follett – Westchester – 18,542
37 – SP+ – Chicago – 18,117
38 – Dominick’s Finer Foods Inc – Oak Brook – 18,000
39 – Reyes Holdings – Rosemont – 17,792
40 – Northern Trust – Chicago – 17,600
41 – Advocate Health Care – Downers Grove – 17,470
42 – BMO Harris Bank – Chicago – 16,889
43 – Transdev North America – Lombard – 16,470
44 – TreeHouse Foods – Oak Brook – 16,027
45 – Discover – Riverwoods – 15,549
46 – OSF HealthCare – Peoria – 15,488
47 – Brunswick – Lake Forest – 14,415
48 – Health Care Service Corporation – Chicago – 14,264
49 – Motorola Solutions – Chicago – 14,000
50 – Komatsu – Rolling Meadows – 14,000
51 – Packaging Corporation of America – Lake Forest – 14,000
52 – University of Illinois at Chicago – Chicago – 13,380
53 – Addus HomeCare – Downers Grove – 12,760
54 – Aptar – Crystal Lake – 12,700
55 – Conagra Brands – Chicago – 12,600
56 – Conagra Brands – Chicago – 12,400
57 – Bally Total Fitness – Chicago – 12,340
58 – The University of Chicago – Chicago – 12,320
59 – Flex-N-Gate – Urbana – 12,150
60 – Pactiv – Lake Forest – 12,000
61 – Medline Industries – Northfield – 12,000
62 – Navistar – Lisle – 11,926
63 – ClearStaff – Chicago – 11,500
64 – Amsted Industries – Chicago – 11,000
65 – Ingredion – Westchester – 11,000
66 – MAT Holdings – Long Grove – 11,000
67 – TDS Corporate – Chicago – 10,300
68 – Littelfuse – Chicago – 10,300
69 – Sara Lee – Downers Grove – 10,001
70 – Hill-Rom – Chicago – 10,000
71 – Alight Solutions – Lincolnshire – 10,000
72 – OSI Group – Aurora – 9,200
73 – SNI Companies – Chicago – 9,000
74 – HAVI – Downers Grove – 9,000
75 – RSM US – Chicago – 9,000
76 – Adtalem Global Education – Downers Grove – 8,956
77 – CDK Global – Hoffman Estates – 8,900
78 – Anixter – Glenview – 8,900
79 – CDW – Vernon Hills – 8,787
80 – Univar – Downers Grove – 8,700
81 – Zurich Insurance – Schaumburg – 8,518
82 – RQA – Orland Park – 8,500
83 – Andy Frain Services – Aurora – 8,500
84 – PSAV Inc – Schiller Park – 8,350
85 – Groupon – Chicago – 8,323
86 – Tribune Media – Chicago – 8,200
87 – Fontana America – Elgin – 8,200
88 – Middleby – Elgin – 8,026
89 – Knowles – Itasca – 8,000
90 – Innovel Solutions – Hoffman Estates – 8,000
91 – Trustmark – Lake Forest – 7,872
92 – Hearthside Food Solutions – Downers Grove – 7,850
93 – CHICAGO TRANSIT AUTHORITY – Chicago – 7,500
94 – Oscar Mayer Foods Corp – Chicago – 7,500
95 – Euromarket Designs Inc – Northbrook – 7,500
96 – Potbelly – Chicago – 7,400
97 – Camping World – Lincolnshire – 7,366
98 – Grant Thornton – Chicago – 7,257
99 – IDEX – Lake Forest – 7,158
100 – Koch Foods – Park Ridge – 7,103
Source: https://www.zippia.com/advice/largest-companies-in-illinois/
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