| Business | Phone |
| Colich Construction 20100 S Western Ave, Torrance 90501 | (310) 320-1400 |
| R C Fluid Engineering Inc 1815 W 205th St # 203, Torrance 90501 | (310) 782-6025 |
| T & K Mechanical Inc 25500 Hawthorne Blvd # 1000, Torrance 90505 | (310) 373-3320 |
| Zondiros Corp 2401 W 208th St # C8, Torrance 90501 | (310) 320-2558 |
| Giken America Corp 3868 W Carson St, Torrance 90503 | (310) 792-1888 |
| Quantum Consulting Inc 2720 Sepulveda Blvd, Torrance 90505 | (310) 891-3994 |