| Business | Phone |
| Campbell & Co 3200 Greenfield Rd 280, Dearborn 48120 | (313) 336-9000 |
| Adviso Inc 21919 Michigan Ave, Dearborn 48124 | (313) 277-1400 |
| Boulton & Assoc Inc 3343 Williams St, Dearborn 48124 | (313) 724-9400 |
| Imagination 1537 Monroe St 100, Dearborn 48124 | (313) 565-0200 |
| Manage Marketing Concepts 22651 Garrison St, Dearborn 48124 | (313) 730-2068 |