| Business | Phone |
| Somerville Security Assoc Inc 9700 Reseda Blvd # 210, Northridge 91324 | (818) 718-4868 |
| Tim Bailey & Assoc Inc 18311 Napa St, Northridge 91325 | (818) 993-3141 |
| Crane Sales Assoc 19553 Parthenia St, Northridge 91324 | (818) 882-1573 |
| S & S Technology Inc 17130 Devonshire St # 202, Northridge 91325 | (818) 366-2866 |
| Bestway Enterprises 16738 Gresham St, Northridge 91343 | (818) 895-7110 |