| Business | Phone |
| Advanced Edm Supply 23624 Roseberry Ave, Warren 48089 | (586) 754-1140 |
| B T Broach & Tool 21500 Hoover Rd, Warren 48089 | (586) 759-0883 |
| Robert F Brown Machinery 25205 Ryan Rd, Warren 48091 | (586) 755-4040 |
| R M Engineering Inc 21500 Hoover Rd, Warren 48089 | (586) 755-3400 |