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
Hogin Machine, Inc. custom manufactures precision parts for the Aerospace, Defense, Automotive, Industrial, and Energy Industries. Our machine shops offer 5-axis machining, Swiss CNC, CNC Milling and Turning, Waterjet cutting, Welding and Fabrication. Locations in Orange County, California and Montana.
Host Machine Inc manufactures oilfield tools, downhole tools, custom machine work and replacement parts for all of their tools
9100 (9001:2015) certified. Certification body: IAPMO SCB. Structure: Single Site.
Hubbell Machine Company, Inc. is a precision machine shop specializing in prototype, short run, and high-volume CNC milling and turning.
Huntington Beach Machining is a precision CNC machine shop in Huntington Beach, CA. ISO 9001 & AS9100D certified. CNC milling, turning, EDM, grinding for aerospace, defense, medical & industrial parts.
9100 (9001:2015) certified. Certification body: ABS Quality Evaluations, Inc.. Structure: Campus.
9100 (9001:2015) certified. Certification body: ABS Quality Evaluations, Inc.. Structure: Campus.
Our machine shop offers CNC milling, CNC turning, & sawing. From small quantity to large scale production jobs, we are ready to meet your manufacturing needs.





