| Business | Phone |
| Advanced Wiring Technologies 17 Carol Cir, Middletown 17057 | (717) 930-8787 |
| Branoff Electric 2043 Market Street Ext, Middletown 17057 | (717) 939-6097 |
| T A Germak Inc 760 E Main St, Middletown 17057 | (717) 944-2487 |
| Raeden Inc 1258 Highspire Rd, Middletown 17057 | (717) 939-8500 |
| Robert E Barilla Inc 1634 N Union St, Middletown 17057 | (717) 944-6516 |