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
Contact us for all your precision machining needs any material | Rollers, Shafts, Tubing & Washers, Repairs | Polyurethane machining and manufacturing | On-site Welding
9120 (9001:2015) certified. Certification body: DNV Business Assurance USA, Inc.. Structure: Multi-Site.
9100 (9001:2015) certified. Certification body: Performance Review Institute Registrar. Structure: Single Site.
FINN Tool & Instruments, Inc. is your partner for high precision parts and assemblies.
We produce custom plastic and metal parts through CNC machining, molding, 3D printing, and casting. Based in China and Mexico, First Mold helps companies get quality parts fast—with clear communication and consistent results.
Five Manufacturing Co., LLC source for Air Collet Closers machinable Collets and Multi-Position Collet Block Part Holders and Tailstocks.
9100 (9001:2015) certified. Certification body: International Standards Authority. Structure: Single Site.
Fledge Machine Shop offers precision CNC machining services and custom fabrication with unmatched quality and reliability. Trusted by industries nationwide.








