| Business | Phone |
| Air Electro Inc 9452 De Soto Ave, Chatsworth 91311 | (818) 407-5400 |
| Automation Electronics 9640 Topanga Canyon Pl # J, Chatsworth 91311 | (818) 998-5124 |
| Cepco 9540 Owensmouth Ave # 3, Chatsworth 91311 | (818) 998-7315 |
| Computer Optical Products Inc 9174 Deering Ave, Chatsworth 91311 | (818) 882-0424 |
| Control Electronics Products 9540 Owensmouth Ave # 3, Chatsworth 91311 | (818) 998-8569 |
| Customs Suppression 9833 Independence Ave, Chatsworth 91311 | (818) 718-1040 |
| Delta Tau Data Systems Inc 21314 Lassen St, Chatsworth 91311 | (818) 998-2095 |
| Dynatrol National Corp 20700 Lassen St, Chatsworth 91311 | (818) 678-0011 |
| Electronic Plastics Co 9535 Owensmouth Ave, Chatsworth 91311 | (818) 882-1700 |
| Elma Electronic Inc 21735 Wahoo Trl, Chatsworth 91311 | (818) 775-0977 |
| Graphic Research Inc 9334 Mason Ave, Chatsworth 91311 | (818) 886-7340 |
| Materials Development Corp 21541 Nordhoff St # B, Chatsworth 91311 | (818) 700-8290 |
| Precision Interface Electronic 9601 Mason Ave, Chatsworth 91311 | (818) 678-3690 |
| Telemetry Communications Syst 20860 Plummer St, Chatsworth 91311 | (818) 718-6248 |
| Young Electronics 20750 Marilla St, Chatsworth 91311 | (818) 407-4033 |
| Computer Optical Products Inc 9355 Eton Ave, Chatsworth 91311 | (818) 882-0424 |
| E W Electronics 9613 Canoga Ave, Chatsworth 91311 | (818) 718-2500 |
| Ever Win Intl Corp 9504 Topanga Canyon Blvd, Chatsworth 91311 | (818) 709-3786 |
| Knight International Traders 9441 Irondale Ave, Chatsworth 91311 | (818) 700-9803 |
| Perceptronics Training Systems 9851 Owensmouth Ave, Chatsworth 91311 | (818) 886-2800 |
| Stock Point 9410 Topanga Canyon Blvd # 100, Chatsworth 91311 | (818) 718-4100 |
| Vikay America Inc 9311 Eton Ave, Chatsworth 91311 | (818) 772-6050 |