| Business | Phone |
| A C Pipe & Equipment Co 1250 E 23rd St, Signal Hill 90755 | (562) 427-3633 |
| Halliburton Energy Svc 2825 Walnut Ave, Signal Hill 90755 | (562) 426-7668 |
| R & T Pacific Assn 1390 E Burnett St, Signal Hill 90755 | (562) 424-2372 |
| Trico Industries Inc 3356 Lime Ave, Signal Hill 90755 | (562) 595-0931 |