| Business | Phone |
| Jayson Tool Co 4520 Fernlee Ave, Royal Oak 48073 | (248) 549-4866 |
| Ezra Engineering Inc 2402 Benjamin Ave, Royal Oak 48073 | (248) 542-2320 |
| Nakota Industries 2725 Nakota Rd, Royal Oak 48073 | (248) 549-6100 |
| Flex N Gate 4336 Coolidge Hwy, Royal Oak 48073 | (248) 549-3801 |