| Business | Phone |
| Acta 2790 Skypark Dr # 310, Torrance 90505 | (310) 530-1008 |
| B D Systems Inc 385 Van Ness Ave # 200, Torrance 90501 | (310) 618-8798 |
| Bowne Decision Quest Inc 21535 Hawthorne Blvd # 310, Torrance 90503 | (310) 618-9600 |
| Charles Abbott Assoc Inc 2601 Airport Dr # 110, Torrance 90505 | (310) 212-5778 |
| Grt & Assoc 2377 Crenshaw Blvd # 156, Torrance 90501 | (310) 782-1410 |
| Measurement Analysis Corp 23852 Madison St, Torrance 90505 | (310) 378-5261 |
| Pri Research & Development 25500 Hawthorne Blvd # 2300, Torrance 90505 | (310) 378-0056 |
| Tima Power Systems 3838 Del Amo Blvd # 202, Torrance 90503 | (310) 793-8880 |
| Amt Communications 2741 Plaza Del Amo, Torrance 90503 | (310) 832-7757 |
| R J Enterprises 5131 Merrill St, Torrance 90503 | (310) 543-0495 |
| Sanpoh Usa Inc 3870 Del Amo Blvd, Torrance 90503 | (310) 214-0034 |
| St Joseph Sciences Inc 3848 W Carson St, Torrance 90503 | (310) 316-1665 |
| Berryman & Henigar Torrance 90505 | (310) 517-0260 |
| Argos Engineers Inc 369 Van Ness Way # 735, Torrance 90501 | (310) 782-3353 |
| Century Associates 1308 Sartori Ave, Torrance 90501 | (310) 328-0070 |
| Limburg Engineering Assoc 3411 W 227th St, Torrance 90505 | (310) 326-2864 |
| Tibbetts Group Ltd 22930 Crenshaw Blvd, Torrance 90505 | (310) 325-6851 |
| J C Chang & Assoc Inc 357 Van Ness Way, Torrance 90501 | (310) 212-7644 |
| Severns Engineering 22906 Frampton Ave, Torrance 90501 | (310) 544-8240 |