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
Thank you for being patient. We are doing some work on the site and will be back shortly.
9100 (9001:2015) certified. Certification body: Perry Johnson Registrars, Inc.. Structure: Single Site.
9100 (9001:2015) certified. Certification body: Amtivo (USA), Inc.. Structure: Single Site.
9100 (9001:2015) certified. Certification body: DNV Business Assurance USA, Inc.. Structure: Single Site.
9100 (9001:2015) certified. Certification body: Perry Johnson Registrars, Inc.. Structure: Single Site.
Long Machine has been in the machined parts industry for over ten years, serving the automotive, oil & gas, and various other industries. We guarantee precision and on time delivery. Send us your requirements today.
Precision CNC machining in Southern California. Aerospace, defense, and commercial. AS9100D, ISO 9001.
9100 (9001:2015) certified. Certification body: IAPMO SCB. Structure: Single Site.
9100 (9001:2015) certified. Certification body: TUV USA, Inc.. Structure: Single Site.
M&C Precision Machining: Expert machining for aluminum, copper, brass, steel, plastics, and more. High-quality, precision-engineered parts.





