| Business | Phone |
| Area One Lock & Key 1240 S Little Creek Rd # A, Dover 19901 | (302) 736-3088 |
| Autopro Lock Svc 164 Merion Rd, Dover 19904 | (302) 744-9337 |
| Marvin Adams Personal Svc 4 Howe Dr, Dover 19901 | (302) 697-1138 |
| Security Key Inc 1140 S Bay Rd, Dover 19901 | (302) 734-1130 |