| Business | Phone |
| Broadata Communications Inc 2545 W 237th St # K, Torrance 90505 | (310) 530-1416 |
| Intelligent Optical Systems 2520 W 237th St, Torrance 90505 | (310) 530-7130 |
| Stc Provision 1815 W 205th St, Torrance 90501 | (310) 320-7827 |
| Optixan Corp 23545 Crenshaw Blvd, Torrance 90505 | (310) 784-0799 |