| Business | Phone |
| Mar-Wil & Assoc 32811 Middlebelt Rd, Farmington 48334 | (248) 487-2550 |
| Marwil & Assoc 21813 Middlebelt Rd, Farmington 48336 | (248) 851-1480 |
| Winn & Assoc 30445 Northwestern Hwy 108, Farmington 48334 | (248) 865-8250 |
| Health Care Cost Management 28104 Orchard Lake Rd 140, Farmington 48334 | (248) 539-2256 |