| Business | Phone |
| All-Safe & Sound Inc 9538 Sappington Rd, Sappington 63126 | (314) 843-5557 |
| All-Tech Security Alarms Inc 9310 Eddie And Park Rd, Sappington 63126 | (314) 849-8449 |
| Allen Logan Investigations 7083 Middlevalley W K, Sappington 63126 | (314) 842-2007 |