| Business | Phone |
| Iesco Inc 3445 Kashiwa St, Torrance 90505 | (310) 257-8222 |
| Geometrize Technology 2807 Oregon Ct # D, Torrance 90503 | (310) 542-7654 |
| Pacific Technical Svc 3551 Voyager St # 104, Torrance 90503 | (310) 793-7173 |
| Apollo Inspection Svc 2409 Faircross St, Torrance 90505 | (310) 326-9787 |
| Western Inspections 3711 Lomita Blvd # 136, Torrance 90505 | (310) 465-1600 |