| Business | Phone |
| Tandem Metal Products 1980 Washington Rd, Washington 15301 | (724) 745-8540 |
| Ritchies Machine 569 E Maiden St, Washington 15301 | (724) 228-3691 |
| Rockwell Automation Washington 320 Reliance Dr, Washington 15301 | (724) 225-2900 |
| Millennium Machine Inc 1180 Armour St, Washington 15301 | (724) 222-1400 |
| Lagonda Machine Co 2410 Park Ave, Washington 15301 | (724) 222-2710 |
| Magnum Machine & Fab Inc 1980 Washington Rd, Washington 15301 | (724) 745-8330 |
| Frazier Simplex Machine Co 1720 N Main St, Washington 15301 | (724) 222-5700 |
| Grimm Machine & Model 95 Statement St, Washington 15301 | (724) 228-2133 |
| Amwell Machine & Fab 450 Crile Rd, Washington 15301 | (724) 229-0750 |
| Davan Manufacturing 500 Crile Rd, Washington 15301 | (724) 228-0115 |