| Business | Phone |
| Ecab Engineering 20029 Bonora Ave, Torrance 90503 | (310) 251-5706 |
| Icp Das-Usa 2531 W 237th St, Torrance 90505 | (310) 517-9888 |
| Ramp Eng Inc 23520 Telo Ave, Torrance 90505 | (310) 782-5044 |
| Zenitram 22138 S Vermont Ave # H, Torrance 90502 | (310) 320-0958 |