| Business | Phone |
| Angell & Co 3250 W Big Beaver Rd 139, Troy 48084 | (248) 649-8720 |
| Tim Pearson & Co 5455 Corporate Dr, Troy 48098 | (248) 205-9950 |
| Executive Secretarial & Bkpg 3083 Oakhill Dr, Troy 48084 | (248) 540-8392 |
| G & C Accounting Svc 1301 W Long Lake Rd, Troy 48098 | (248) 952-0239 |