| Business | Phone |
| Industrial Investment Council 3001 W Big Beaver Rd 120, Troy 48084 | (248) 643-6308 |
| Innovative Technology Group 2075 W Big Beaver Rd, Troy 48084 | (248) 643-4847 |
| Consulate Dominican Republic 5387 Ridge Ct, Troy 48098 | (248) 641-9297 |
| Consulate Of San Marino 1685 E Big Beaver Rd, Troy 48083 | (248) 528-1190 |
| French Trade Commission 525 E Big Beaver Rd, Troy 48083 | (248) 457-1150 |