| Business | Phone |
| Emerald Metal Products Inc 801 E 33rd St, Signal Hill 90755 | (562) 490-2540 |
| K & E Manufacters Co 1966 Freeman Ave, Signal Hill 90755 | (562) 494-7570 |
| Mel E Guy Ind Sheet Metal 2766 Saint Louis Ave, Signal Hill 90755 | (562) 426-6363 |
| Shoreline Fabricators 2652 Gundry Ave, Signal Hill 90755 | (562) 424-4744 |
| Wille's Tin Shop 1875 Freeman Ave, Signal Hill 90755 | (562) 436-6736 |
| Condor Metals 2253 Cerritos Ave, Signal Hill 90755 | (562) 424-6605 |