| Business | Phone |
| Monarch Tool & Gauge Co 29469 Groesbeck Hwy, Roseville 48066 | (248) 356-7733 |
| Webster Engineering Co 28141 Groesbeck Hwy, Roseville 48066 | (586) 777-0116 |
| True Industries Inc 15300 E 12 Mile Rd, Roseville 48066 | (586) 771-3500 |
| Die Trends 26625 Gratiot Ave, Roseville 48066 | (586) 771-1880 |
| Dorian Industries 15221 E 11 Mile Rd, Roseville 48066 | (586) 771-1650 |
| Hillside Tool & Die Co 29469 Groesbeck Hwy, Roseville 48066 | (586) 778-8320 |
| Komarnicki Tool & Die Co 29650 Parkway, Roseville 48066 | (586) 776-9300 |