Top Service Companies (Over 400 Employees)
| Company Name |
City/Village |
Employment Count |
Products/Services |
| U. S. Department of Navy |
Great Lakes |
26200 |
Naval training |
| Aon / Hewitt Associates Inc |
Lincolnshire |
4700 |
Human Resources |
| Discover Financial Services |
Riverwoods |
3500 |
Financial |
| Motorola Inc |
Libertyville |
3500 |
Equipment repair |
| Vista Hospital |
Waukegan |
2850 |
Medical Center |
| Lacosta Facility Support Svcs |
Wauconda |
2800 |
Maintenance |
| HSBC |
Mettawa |
2300 |
Financial |
| Advocate Condell Medical Ctr |
Libertyville |
2000 |
Medical Center |
| Northwestern Lake Forest Hospital |
Lake Forest |
1760 |
Medical |
| Trustmark Insurance Co |
Lake Forest |
1500 |
Insurance |
| Midwestern Regional Medical |
Zion |
915 |
Medical Center |
| Capital Retail Services Inc |
Lake Zurich |
900 |
Maintenance |
| County of Lake |
Libertyville |
850 |
Administrative |
| Illinois Dept of Human Services |
Waukegan |
731 |
Public services |
| Montclair Hotels |
Deerfield |
700 |
Management |
| Corporate Building Systems Inc |
Buffalo Grove |
630 |
Maintenance |
| CCH Inc |
Riverwoods |
600 |
Business consulting |
| General Electric Capital Auto |
Barrington |
600 |
Financial |
| B & B Maintenance Inc |
Lake Zurich |
550 |
Maintenance |
| LOGS Financial Services Inc |
Northbrook |
550 |
Accounting |
| Stericycle Inc |
Bannockburn |
500 |
Refuse System |
| First Midwest Bancorp Inc |
Waukegan |
480 |
Financial |
| Vw Credit Inc |
Libertyville |
450 |
Financial |
| Dovenmuehle Mortgage Inc |
Lake Zurich |
443 |
Financial |
| Federal Express Corp |
Buffalo Grove |
400 |
Management Consulting |
| Illinois Bone & Joint Inst |
Gurnee |
400 |
Medical |
| Portrait Masters Inc |
Wauconda |
400 |
Portraits |
| Proficient Business Systems |
Vernon Hills |
400 |
Computer Systems Design |
|
