| Business | Phone |
| Petee Mato & Assoc 24520 Hawthorne Blvd # 11, Torrance 90505 | (310) 808-1261 |
| Viatron Systems Inc 370 Crenshaw Blvd, Torrance 90503 | (310) 787-4320 |
| Baaden Security Management Inc 20619 Toluca Ave, Torrance 90503 | (310) 371-5943 |
| Citadel Group 3625 Del Amo Blvd # 350, Torrance 90503 | (310) 793-2800 |
| Digital Logic Usa Inc 1815 W 213th St # 230, Torrance 90501 | (310) 212-6464 |
| Synergistic Ssi Llc 24050 Madison St, Torrance 90505 | (310) 373-6884 |