| Business | Phone |
| Active Magnetic Inspection 9356 1/2 San Fernando Rd # B, Sun Valley 91352 | (818) 504-0677 |
| Advanced Measurement Lab Inc 8960 Glenoaks Blvd, Sun Valley 91352 | (818) 767-1111 |
| B-G Detection Svc 9235 Glenoaks Blvd, Sun Valley 91352 | (818) 842-5405 |