| Business | Phone |
| H & H Manufacturer Co Inc 2 Horne Dr, Folcroft 19032 | (610) 532-8100 |
| Johnston Precision Inc 906 Ashland Ave # B, Folcroft 19032 | (610) 522-5646 |
| N P Precision 5 Horne Dr, Folcroft 19032 | (610) 586-5100 |
| Spranger Manufacturing Co 960 Ashland Ave, Folcroft 19032 | (610) 522-1102 |