2227 verified suppliers listed

Best Manufacturing NDT Inspection Companies

Manufacturing NDT encompasses the full range of in-process and final inspection services that support quality assurance in metal fabrication, casting, forging, and precision component manufacturing. From weld inspection during structural fabrication to ultrasonic inspection of forgings for internal discontinuities to final PT/MT inspection before shipment, manufacturing NDT companies operate within production schedules and quality management systems designed to prevent nonconforming product from reaching customers. ISO 9001–certified NDT providers are common in manufacturing supply chains, while specialized sectors (pressure equipment, aerospace components, defense hardware) require higher-tier certifications including PED compliance, ASME stamps, and Nadcap accreditation.

Why these suppliers?

  • Manufacturing NDT companies integrate into production quality plans, operating on production-pace schedules and providing in-process hold-point inspection with same-day results that keep fabrication moving.
  • ISO 9001–certified NDT providers bring documented quality management systems with calibrated equipment records, certified personnel documentation, and nonconformance tracking that satisfies supplier quality audit requirements.
  • Companies with multi-method capability (UT, RT, MT, PT, VT) can serve as a single-source NDT partner for fabricators, eliminating the coordination burden of managing multiple specialty inspection subcontractors.

180 verified suppliers found

Monroeville, Pennsylvania5.0(15)

Discover Steel City NDT, offering reliable non-destructive testing services for quality assurance in steel and metal industries.

+1 724-212-7322Website
Merrillville, Indiana4.7(16)

Summit NDE offers exceptional Nondestructive Examination services to our clients around the world. Call 219.213.3180.

+1 219-213-3180Website
Angleton, Texas5.0(1)

TEAM, Inc. empowers greater safety, reliability and operational efficiency through technology-enabled asset integrity management and performance solutions.

(713) 948-9950Website
Kent, Washington5.0(2)

Composite Reference Standards Techna NDT is licensed by Boeing to produce the ST8871 composite reference standard used on the 787. We also sell the companion holder TEK-9012 and manufacture a number of other related items as well.

+1 253-872-2415Website

At TecScan we design and manufacture NDE Scanners & Systems which incorporate ultrasonic, and eddy-current technologies. Our systems range from small hand-held scanners to large automated in-line manufacturing systems, and from immersion scanners to large squirter/gantry systems. TecScan also boasts a particular expertise in the fields of GUIDED WAVES and Pulsed Eddy Current technology.

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Oliver Springs, Tennessee

ASNT-certified NDT services & training in Tennessee. Leak testing, ultrasonic, mag particle, penetrant & cleanroom inspections. Call for a quote today.

+1 678-763-2787Website
Columbus, Ohio4.7(10)

ASNT is the global leader in nondestructive testing (NDT), providing certifications, education, and a strong membership network. Our members gain access to industry-leading resources, career opportunities, and professional development, equipping them to ensure the safety and reliability of critical systems and infrastructure. Join ASNT and be part of a community shaping the future of NDT.

+1 614-274-6003Website
West Chester Township, Ohio

TPAC offers cutting-edge ultrasonic non-destructive testing solutions to enhance safety and performance across various industries.

+1 513-785-0801Website
Staten Island, New York3.7(3)

Non-Destructive Eddy Current (EC), Ultrasonic Testing (UT), Magnetic Particle Testing (MT), Penetrant (PT) and Visual Inspection nationally since 1986.

+1 718-948-6226Website

Trinity NDT WeldSolutions: Advanced Welding & Non-Destructive Testing Services Trinity NDT WeldSolutions is a specialized division of Trinity NDT, providing comprehensive welding inspection, testing, and certification services across diverse industries. As industry leaders in Non-Destructive Testing (NDT) for welded components, we ensure the structural integrity, safety, and compliance of critical welds in manufacturing, construction, oil & gas, aerospace, and infrastructure sectors. Comprehensive Non-Des

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Baton Rouge, Louisiana4.5(8)

Turner Industries offers customized industrial specialty services, including hydroblasting, vacuum services, and chemical cleaning. Learn more today.

+1 800-818-5434Website
Magnolia, Texas5.0

TXNDT is the top choice for nondestructive testing methods and NDT consulting. Start a career as a NDT technician. Register for the TXNDT NDT Academy.

+1 281-231-0001Website
Carlsbad, New Mexico5.0(3)

U.S. Inspection & NDT provide non-destructive and visual testing services for construction, manufacturing, oil & gas, aviation & others.

(855) 885-5400Website
Haverhill, Massachusetts4.0(3)

High-Performance Spray Coating Equipment for Fuel Cell, Medical, Semiconductor, Solar, and Electronics Assembly

+1 978-521-0095Website

Frequently Asked Questions

What NDT methods are most common in metal fabrication and welding shops?
Visual testing (VT) by certified inspectors is the first line of quality assurance for all welds. Magnetic particle testing (MT) and liquid penetrant testing (PT) are standard for surface inspection of welds, heat-affected zones, and machined surfaces. Radiographic testing (RT) is commonly specified for pressure piping, pressure vessels, and structural welds requiring volumetric inspection. Ultrasonic testing (UT), including PAUT, is increasingly used where RT is impractical or where weld volumetric data is needed for code compliance and quality records.
What is a Certified Welding Inspector (CWI) and when is one required?
An AWS Certified Welding Inspector (CWI) is qualified to review welding procedures, evaluate welder performance qualifications, and perform visual inspection and documentation of welds. CWIs are required on many structural steel, pressure vessel, and pipeline projects — often by contract specification or by code (AWS D1.1, ASME Section IX). CWI qualification requires passing a three-part AWS examination covering fundamentals, practical application, and code knowledge. CWIs work closely with NDT technicians on fabrication projects but hold a distinct role focused on visual and procedural compliance rather than volumetric inspection.
How do I set up an NDT program for a new fabrication project?
Start with the governing code or standard specified in the project contract (ASME, AWS D1.1, API 650, etc.) and identify the required inspection categories, methods, and acceptance criteria. Develop a quality plan or inspection and test plan (ITP) that identifies inspection hold points, required method and level, documentation requirements, and release authority. Select an NDT company whose scope of certification covers all required methods. Establish the inspection cadence early — NDT integrated into the fabrication schedule avoids the bottleneck of end-of-project inspection that compresses schedules.

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