| Business | Phone |
| Astro Machine Co 101 Sycamore Ave # 115, Folsom 19033 | (610) 534-7575 |
| Guzzardo Machine Products Corp 116 Sycamore Ave, Folsom 19033 | (610) 534-9004 |
| Rgs Machine Inc 101 Sycamore Ave # 109, Folsom 19033 | (610) 532-1850 |
| Ridley Precision Tool Co 119 Swarthmore Ave, Folsom 19033 | (610) 534-9055 |
| Robert Adams Machine Tool 101 Sycamore Ave, Folsom 19033 | (610) 534-1220 |