| Business | Phone |
| Commander Systems 400 E Redondo Beach Blvd, Gardena 90248 | (310) 329-7586 |
| Duarte Engineering Co 516 W Rosecrans Ave, Gardena 90248 | (310) 327-8580 |
| J & S Inc 229 E Gardena Blvd, Gardena 90248 | (310) 719-7144 |
| Lance Manufacturing Co 18093 S Figueroa St, Gardena 90248 | (310) 323-4601 |
| United Fabrication 16100 S Figueroa St, Gardena 90248 | (310) 327-7461 |
| R J Enterprises 17124 S Western Ave, Gardena 90247 | (310) 327-8127 |