- Alaska Industrial X-Ray Inc
- Allis Engineering Inc
- Comet North America
- CONAM Pacific Coast Testing
- Contra Costa Inspection Co
- Davis Laboratories Inc
- Davis Laboratories Inc
- Edge Testing & Inspection Inc
- Fein Focus USA Inc
- Generation Imaging
- Hesco
- Inspection Consultants Inc
- Longview Inspection
- Longview Inspection
- National Radiologic Physics
- NDT Unlimited
- Nor Cal Testing Inc
- Nor Cal Testing Inc
- Phoenix X-Ray Systems & Svc
- Radcliffe Inspections
- REM X-Ray Physics
- Sub Site Investigations
- T C Inspection Inc
- Western Aerospace Inspection
- William Johnson
- X-Tek
