| Business | Phone |
| Capgemini 10255 W Higgins Rd 3, Des Plaines 60018 | (312) 879-2500 |
| Dhs & Assoc 9450 Bryn Mawr Ave 700, Des Plaines 60018 | (847) 297-5600 |
| Mid-America Managements Corp 9984 Holly Ln, Des Plaines 60016 | (847) 827-8089 |
| Professional Accounting Rsrcs 704 Country Ln, Des Plaines 60016 | (847) 390-6500 |
| Sirovy & Assoc Des Plaines 60016 | (847) 299-9992 |
| Heidorn Consulting 3158 S River Rd 209, Des Plaines 60018 | (847) 296-8890 |
| Management Recruiters 1400 E Touhy Ave 160, Des Plaines 60018 | (847) 297-7102 |
| Melnick Baird Williams Inc 2526 Rusty Dr, Des Plaines 60018 | (847) 299-9980 |
| Perry Johnson Inc 10255 W Higgins Rd 140, Des Plaines 60018 | (847) 635-0010 |
| Prtm Management Consultants 9399 W Higgins Rd 900, Des Plaines 60018 | (847) 813-4500 |
| R & A Crisis Management Svc 650 S River Rd, Des Plaines 60016 | (847) 827-4267 |
| Rent A Manager Consulting Svc 541 N 5th Ave, Des Plaines 60016 | (847) 803-3963 |
| Vision Management Assoc Llc 950 Lee St 210, Des Plaines 60016 | (847) 297-8089 |
| Ajilon Consulting Rosemont 5600 N River Rd 760, Des Plaines 60018 | (847) 737-2202 |
| James Martin & Co 10275 W Higgins Rd, Des Plaines 60018 | (847) 430-2000 |
| Perry Johnson Registrars 10275 W Higgins Rd, Des Plaines 60018 | (847) 635-0999 |
| Raymond Management 2930 S River Rd, Des Plaines 60018 | (847) 296-8999 |
| Uni Consulting 2860 S River Rd, Des Plaines 60018 | (847) 627-5500 |
| Waterstone Consulting 1700 E Higgins Rd 420, Des Plaines 60018 | (847) 699-9797 |