| Business | Phone |
| Delta Integration Inc 23 Howard Ave, Lancaster 17602 | (717) 392-2701 |
| Etemco 1370 Arcadia Rd, Lancaster 17601 | (717) 393-9653 |
| Herley Lancaster 3061 Industry Dr, Lancaster 17603 | (717) 397-2777 |
| Yorktowne Electronics Co 238 Rocklawn Ln, Lancaster 17601 | (717) 391-8937 |