| Business | Phone |
| Delwood Supply Co 31354 Industrial Rd, Livonia 48150 | (734) 261-8700 |
| Meek Beck & Assoc Inc 11875 Belden Ct, Livonia 48150 | (734) 458-2950 |
| Performance Engineering Group 32995 Industrial Rd, Livonia 48150 | (734) 266-5300 |
| Mason Corp 38705 7 Mile Rd, Livonia 48152 | (734) 464-3733 |
| Don Maahs & Assoc Inc 36070 Roycroft St, Livonia 48154 | (734) 464-3320 |