| Business | Phone |
| Southwest Patrol 556 N Diamond Bar Blvd # 207, Diamond Bar 91765 | (909) 861-1884 |
| Starside Security & Invstgtn 1930 S Brea Canyon Rd # 220, Diamond Bar 91765 | (909) 396-9999 |
| Country 2604 Shadow Canyon Rd, Diamond Bar 91765 | (909) 861-3901 |
| International Empire Patrol Diamond Bar 91765 | (909) 396-9531 |
| Southwest Patrol Inc Diamond Bar 91765 | (310) 716-0600 |