| Business | Phone |
| Alwine Security Svc Inc 2728 Brookfield Rd, Lancaster 17601 | (717) 569-4292 |
| Bosch Security Systems 850 Greenfield Rd, Lancaster 17601 | (717) 735-6300 |
| Vector Security 3549 Hempland Rd, Lancaster 17601 | (717) 285-0050 |
| Choice Security Svc Llc 101 Good Dr # 1, Lancaster 17603 | (717) 207-0155 |
| Yarnell Security Systems 131 Elmwood Rd, Lancaster 17602 | (717) 399-3900 |