| Business | Phone |
| Angel Guarding Security 2116 E Chevy Chase Dr, Glendale 91206 | (818) 439-2743 |
| Citiguard Inc 1930 W Glenoaks Blvd # 6, Glendale 91201 | (818) 840-0075 |
| Digital Security Svc 1811 W Glenoaks Blvd # A, Glendale 91201 | (818) 239-3180 |
| O & R Enterprises 123 S Jackson St, Glendale 91205 | (818) 551-7111 |
| Observant Security Patrol Inc 512 E Wilson Ave # 402, Glendale 91206 | (818) 243-9173 |
| Protak Security Svc 512 E Wilson Ave, Glendale 91206 | (818) 500-8193 |
| Super Security Svc 715 N Central Ave # 108, Glendale 91203 | (818) 500-8048 |
| Strategic Intelligence Group 1123 E Chestnut St, Glendale 91205 | (818) 822-8495 |
| Able.Com 314 East Broadway, C-163, Glendale 91205 | (818) 237-8111 |