| Business | Phone |
| Cast Security 6608 Gretna Ave, Whittier 90606 | (562) 695-4558 |
| Omt & Assoc 6557 Bright Ave, Whittier 90601 | (562) 698-4442 |
| On Site Security 14047 Lambert Rd, Whittier 90605 | (562) 907-3848 |
| Pmi Security Svc 6528 Greenleaf Ave # 212, Whittier 90601 | (626) 858-9474 |
| Southwest International Inc 14442 Whittier Blvd # 207, Whittier 90605 | (562) 698-1984 |
| Nationwide Protective Svc 6528 Greenleaf Ave # 229, Whittier 90601 | (562) 696-6670 |
| Lancashire Group Inc 7007 Washington Ave, Whittier 90602 | (562) 945-0616 |