| Business | Phone |
| Jefs & Assoc 2741 Bittersweet Dr, Harleysville 19438 | (215) 234-0311 |
| John T Smith Co 904 Harleysville Pike, Harleysville 19438 | (610) 222-0456 |
| Scientific Devices 1635 Clemens Rd, Harleysville 19438 | (215) 836-0780 |
| North East Technical Sales Inc 171 Ruth Rd, Harleysville 19438 | (215) 513-1000 |