| Business | Phone |
| Securitas Security Svc Usa Inc 12440 Firestone Blvd # 215, Norwalk 90650 | (562) 868-2555 |
| Special Enforcement & Invstgtn 11874 Rosecrans Ave, Norwalk 90650 | (562) 929-0039 |
| Clv Statewide Security 13332 Mapledale St, Norwalk 90650 | (562) 921-5297 |
| Countrywide Patrol 12085 Abingdon St, Norwalk 90650 | (562) 868-8557 |
| Empire Protection Svc 10400 Imperial Hwy, Norwalk 90650 | (562) 868-5206 |
| St George Private Security Norwalk 90650 | (562) 409-1837 |