| Business | Phone |
| A A Plus Security Svc 11849 Foothill Blvd # F, Rancho Cucamonga 91730 | (909) 989-9473 |
| Assurance Security Svc 9804 Crescent Center Dr, Rancho Cucamonga 91730 | (909) 466-6454 |
| Guardsmark Inc 8577 Haven Ave, Rancho Cucamonga 91730 | (909) 989-5345 |
| Inter County Protection 11030 Arrow Rte # 208, Rancho Cucamonga 91730 | (909) 945-3072 |
| Ultra Protective Svc 9999 Foothill Blvd # 160, Rancho Cucamonga 91730 | (909) 481-7906 |
| Valor Security Svc Rancho Cucamonga 91730 | (909) 945-9837 |