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

Huntington Beach, California4.1(19)

At Accurate Weld Testing Lab, we are your trusted partner in the pursuit of welding perfection. With a relentless commitment to precision, safety, and innovation, we stand at the forefront of weld quality assurance.

+1 714-373-3852Website
Eastlake, Ohio3.7(3)

Advanced Quality Group (AQG) is a non-destructive testing (NDT) facility providing inspection services to meet the Highest Industry Quality Standards.

+1 440-954-9404Website
Kent, Washington

Welcome to AEROFAB NDT Fully Equipped Machine Shop Precision Tooling 50+ Years Experience Parts Database Request A Quote Fully equipped machine shop In-house manufacturing ensures you receive the shortest lead times for your projects! 8649 South 212th Street Kent, Washington – USA 50+ years of experience Let our experts help you get the right tools […]

+1 253-395-8706Website
Pasadena, Texas5.0(5)

INDUSTRIAL CLEANING HYDROBLASTING HIGH SPEED HYDROBLASTING SOLUTIONS WITH INTEGRATED OPTIONS, INCLUDING INSPECTION Learn More ENVIRONMENTAL SOLUTIONS WATER TREATMENT CUSTOM ENGINEERED SOLUTIONS TAILORED TO OUR CLIENT’S OPERATIONAL AND REGULATORY NEED Learn More AMERAPEX CORPORATION WHO WE ARE OUR MISSION IS TO ADVANCE OUR CLIENTS WITH INNOVATIVE ENGINEERING, TECHNOLOGY, AND INDUSTRIAL SERVICES About Us CULTURE OF ZERO […]

+1 713-986-8400Website
Mansfield, Texas

AMS Level 3 provides Nondestructive Testing (NDT) consulting, training, and compliance solutions to aerospace, defense, energy, and manufacturing industries across the United States. Founded in 2004, AMS Level 3 has built a reputation for expert Level 3 services, Nadcap audit support, FAA/ISO compliance, and workforce training solutions. Our services include: � Level 3 Consulting � Procedure and work instruction development, exam preparation, retainer services, and internal/external audits. � NDT Tra

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The Arabic Consultancy Center for Engineering Materials, Inspection and Welding (ACCMIW) is a company located in Egypt, with business focus on engineering materials consultations, failure analysis and prevention, quality control, inspection, NDT and welding. The topics of interest are: Consultations: Engineering Materials: metallurgical and failure analysis investigations, mechanical testes, chemical analysis, conformance to specifications, manufacturing consultations, heat treatments, protection,

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Kansasville, Wisconsin5.0(1)

Onsite welding inspection and training programs tailored to your company's needs.

+1 262-620-5800Website
Pocola, Oklahoma5.0(3)

Arklahoma Weld Testing & Inspection LLC has over 30 years combined experience in the welding and fabrication industry.

+1 479-208-8929Website
Tulsa, Oklahoma4.9(8)

Associated Technical Support Services, LLC. INDUSTRIAL SERVICES ABOUT COMPANY Serving the Energy Sector for Over 25 years Associated Technical Support Services LLC, takes a common sense approach to its operating philosophy; provide the customer with

+1 801-865-7195Website
Port Arthur, Texas5.0(1)

Safeguard your systems with Baron NDT's testing expertise.

+1 409-200-2223Website
Beaumont, Texas5.0(1)

Safeguard your systems with Baron NDT's testing expertise.

(409) 200-2223Website
Dickinson, North Dakota4.8(4)

Our Nondestructive Examination (NDE) group has earned a reputation for providing high quality services on a wide range of projects. For more than 35 years, we have been providing services to the petrochemical, mining, power generation, pipeline, aerospace, automotive, manufacturing, fabrication, and construction industries. Our ability to provide services across many industries has allowed us to maintain the largest NDE staff in the upper Midwest while expanding our NDE services throughout the central Unite

(701) 225-7090Website

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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