Best NDT Companies in California
California's NDT market spans two distinct but equally demanding sectors: aerospace and defense inspection concentrated in the Los Angeles Basin and San Diego, and industrial inspection serving the state's refineries, petrochemical facilities, and aging infrastructure. Aerospace NDT companies in California serve Boeing, Northrop Grumman, Raytheon, SpaceX, and hundreds of Tier 1 and Tier 2 suppliers requiring Nadcap-accredited NDT for flight-critical structure, engine components, and composite assemblies. Industrial NDT companies serve the Bay Area and Southern California refinery corridor, performing API inspection and corrosion monitoring. Both sectors demand rigorously certified technicians and documented inspection procedures.
Why these suppliers?
- ✓California's aerospace NDT market — centered on the LA Basin and San Diego — demands Nadcap accreditation, AS9100 integration, and ITAR compliance for inspection of flight-critical metallic and composite structures.
- ✓Southern California's refinery corridor and Bay Area industrial facilities generate consistent demand for API 510/570 inspection, corrosion monitoring, and fitness-for-service assessments.
- ✓California's size and industrial diversity mean NDT companies here have invested in the full range of advanced methods — PAUT, TOFD, digital radiography, and automated UT systems — giving buyers access to the latest inspection technology.
1475 verified suppliers found
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Precision CNC Machining Service
CNC machining of aluminum, steel, and exotic alloys. AS9100D certified. Quick-turn prototyping and production runs.
CNC Machining of high precision commercial grade parts for the electronics industry. We sell high precision Commercial Grade CNC Machine Parts. Such as Swiss Screw Machining, 5 Axis CNC Lathe Machining, Vertical Milling, Horizontal Milling, and 4 Axis CNC Machining. CNC Lathe and Swiss Screw Machine parts range in size from .020” to 9.0" diameter. CNC Mill parts fit within one square foot roughly. Tolerances held vary from +-.001" to ±0.0004".
Paragon Machine Works prides itself on making high quality, aesthetically pleasing products manufactured in the USA. We have an extensive line of bicycle frame building components, provide design development and high volume manufacturing capabilities, offer competitive pricing, and guarantee customer satisfaction.







