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Ndt Testing Companies

Last updated: January 2026

This directory lists 101 ndt testing companies across the United States, from advanced aerospace component integrity firms to conventional weld inspection and API storage tank compliance specialists.

Buyers are solving critical challenges like maintaining pipeline integrity against stress corrosion cracking, ensuring the structural soundness of pressure vessels, or qualifying newly manufactured parts for adherence to specifications. They leverage NDT to detect sub-surface flaws, characterize material loss due to erosion, or map fatigue damage before it becomes critical.

NDT providers in this space typically fall into several categories: broad-spectrum industrial inspection services offering a range of methods like Radiographic Testing (RT), Magnetic Particle Testing (MPT), and Liquid Penetrant Testing (LPT); highly specialized firms focusing on niche applications such as aerospace composite inspection with NADCAP accreditation; or those dedicated to specific regulatory frameworks like API inspection for the oil & gas sector.

To ensure a smooth engagement, buyers should come prepared with detailed specifications including material types, component geometries, defect types of concern, relevant industry codes (e.g., ASME, API, AWS), and desired inspection coverage. Suppliers, in turn, expect clear scopes of work to accurately quote and allocate appropriately certified ASNT Level II or Level III personnel and equipment.

A significant trend shaping this category is the increasing adoption of digital NDT methods and advanced automation. Traditional film radiography is being progressively supplanted by Computed Radiography (CR) and Digital Radiography (DR), offering faster results, enhanced image manipulation, and easier data archiving. Furthermore, the integration of robotics and drone technology is expanding inspection reach, improving safety and efficiency for inaccessible assets.

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Company Directory

101 companies nationwide

A2Z NDT Inspection services LLC

Las Vegas, NV

A2Z NDT Inspection services LLC offers a wide array of non-destructive testing (NDT) and inspection services. Their expertise spans traditional methods like Radiographic, Magnetic Particle, Liquid Dye Penetrant, and Ultrasonic Testing. The company also provides advanced NDT technologies, Ground Penetrating Radar, PMI, Infrared Thermography, Holiday Testing, hardness testing, and welding qualification services.

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Ace Thermal Imaging and Consulting

Chino Hills, CA

Based in Chino Hills, CA, Ace Thermal Imaging and Consulting provides non-destructive testing services primarily through state-of-the-art thermal imaging. They specialize in detecting electrical issues, concrete slab leaks, missing insulation, and water damage for commercial and residential clients. Emergency service is available.

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Aegeus Inspection Solutions

Bakersfield, CA

Based in Bakersfield, CA, Aegeus Inspection Solutions provides non-destructive testing, inspection, engineering, and staff augmentation services. Serving the energy, defense, aerospace, and civil sectors for over 40 years, they focus on asset integrity and safety, offering customized programs for performance and compliance.

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Aircraft X-ray Laboratories, Inc.

Huntington Park, CA

Aircraft X-ray Laboratories, Inc. based in Huntington Park, CA, is a pioneer in non-destructive testing for the aerospace industry, with over eight decades of experience. They offer NADCAP certified NDT services including digital X-ray, computed radiography, film, magnetic inspection, pressure testing, paint, and chemical processing.

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American Efficiency Services

Based in Cumberland, MD, American Efficiency Services provides non-destructive testing, including Eddy Current Testing and Helium Inspections, to detect flaws and leaks in conductive materials. They offer services like expansion joint repair, tube cleaning, and condenser retubing, serving power generation, process, and industrial markets.

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Apex Inspections, Inc.

Farmers Branch, TX

Based in Farmers Branch, TX, Apex Inspections, Inc. provides comprehensive NDT testing services. Their extensive methods include ultrasonic, radiographic, eddy current, magnetic particle, liquid penetrant, and visual inspection. Serving aviation, industrial, oil & gas, and military & defense, they help meet stringent safety and quality requirements.

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American Precise Testing LLC

Lake Forest, CA

Based in Lake Forest, CA, American Precise Testing LLC provides Nondestructive Testing (NDT) solutions for aerospace, defense, manufacturing, and energy. Their certified team offers advanced radiographic, penetrant, magnetic particle, and visual inspections. They also perform PMI with XRF, hydrostatic pressure, and hardness testing to ensure material strength and compliance.

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Aerospace Services And Products, Inc.

Aerospace Services And Products, Inc. provides non-destructive testing (NDT) services, ensuring the integrity of components before installation. The company specializes in various forms of NDT, aiming to meet customer expectations for quality and on-time returns within the aerospace industry.

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Baron NDT

Jacksonville, FL

Based in Jacksonville, FL, Baron NDT provides comprehensive nondestructive testing services and safety inspections. The company specializes in supporting the industrial and aerospace sectors, offering essential NDT solutions with additional operations in Port Arthur, TX.

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BG Detection Service Inc.

Sun Valley, CA

Based in Sun Valley, CA, BG Detection Service Inc. is a full-service, NADCAP Certified Non-Destructive Testing Laboratory. The company provides fast, competitively priced, and quality NDT services, specializing in penetrant inspection and magnetic particle inspection for surface and shallow subsurface discontinuities.

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BRL NDT SERVICES

San Antonio, TX

Based in San Antonio, TX, BRL NDT SERVICES offers comprehensive non-destructive testing (NDT) solutions. Their capabilities include ultrasonic, magnetic particle, penetrant, visual, eddy current, radiographic, and hardness testing, alongside QA/QC and welding qualification services. They serve diverse industries like power generation, manufacturing, oil/gas, and structural applications.

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BSI

Based in Frostburg, MD, BSI offers advanced NDT compliance services, including automated ultrasonic testing and phased array inspections for precise asset monitoring. The company specializes in customized real-time corrosion monitoring solutions, leveraging predictive analytics and AI to assess infrastructure health. BSI also provides on-stream tank inspections for multiple industries.

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California Testing & Inspections

Paramount, CA

Based in Paramount, CA, California Testing & Inspections (CT&I) is an engineering firm providing materials testing and field inspection services for construction projects. Utilizing accredited laboratories with certified technicians, CT&I ensures public safety and code compliance via rigorous material integrity assessments.

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Certified Welding & Inspection

Harlingen, TX

Certified Welding & Inspection, based in Harlingen, TX, offers professional inspection services, including CWI and drone inspections. They specialize in structural aluminum welding, windmills, cell towers, and solar farms. The company also provides welding training, testing, certification, and welding machine repair.

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Critical Weld Inspections INC.

Benicia, CA

Based in Benicia, CA, Critical Weld Inspections Inc. (CWI) is a veteran-owned, full-service NDT and inspection company. They provide comprehensive Non-Destructive Testing (NDT) and Quality Assurance/Quality Control (QA/QC) services, including radiographic, ultrasonic, magnetic particle, liquid penetrant, and visual testing.

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Decisive Testing Inc.

San Diego, CA

Based in San Diego, Decisive Testing Inc. provides comprehensive Non Destructive Testing (NDT/NDE) and X-Ray inspection services. Founded in 1968, they serve residential and commercial customers, offering concrete scanning (GPR), film and digital x-ray, utility locating, and other destructive and mechanical test methods.

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ECS Inc.

Rome, GA

Based in Rome, GA, ECS Inc. provides comprehensive NDT inspection and consulting services, specializing in Eddy Current, UT, MT, PT, and API inspections. They assess heat exchangers, piping, tanks, pressure vessels, and boilers for diverse industries, including power generation, petrochemical, manufacturing, and oil & gas clients.

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Eddy Current USA, Inc.

Marcell, MN

Eddy Current USA, Inc. provides non-destructive eddy current inspection services, specializing in Vapor Compression and Absorption chillers and heat exchangers. With over 30 years of experience, they serve commercial and industrial clients in the power utility, petrochemical, and ethanol industries.

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Fusion Technology Welding Inspection

Mountain View, CA

Based in Mountain View, CA, Fusion Technology Welding Inspection provides comprehensive non-destructive testing (NDT) and welding inspection services. They specialize in methods like ultrasonic (UT), magnetic particle (MT), liquid penetrant (PT), and visual (VT) testing. The company also offers welder and welding procedure qualification, serving industrial clients with crucial quality assurance.

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Hadd-Co Inspection Lab

Torrance, CA

Hadd-Co Inspection Lab, based in Torrance, CA, offers non-destructive testing (NDT) services with over 60 years of experience. A Nadcap-accredited lab, it provides Magnetic Particle and Fluorescent Penetrant Inspection for military, major aircraft manufacturers, their vendors, and commercial companies nationwide.

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Hansen Aerospace LLC

Based in Danvers, MA, Hansen Aerospace LLC provides non-destructive testing and inspection services. Established in 1982, the company serves diverse markets including aerospace, power generation, medical, nuclear, and automotive sectors, with over four decades of industry experience.

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International Inspection LLC

Seattle, WA

International Inspection LLC provides NDT and inspection services, including magnetic particle testing, thickness measurements, and weld inspections. The company's Level II and Level III inspectors are ASNT certified, serving marine, cell tower, and wind turbine industries. They operate from five offices along the US West and Gulf Coasts.

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Industrial Inspection & Consulting LLC

Norton Shores, MI

Based in Norton Shores, MI, Industrial Inspection & Consulting LLC offers comprehensive NDT testing services. Capabilities include industrial X-ray, CT scanning, dye penetrant, magnetic particle, ultrasonic, eddy current, and visual testing. They provide NDT oversight and training for sectors like automotive and aerospace, holding ISO/IEC 17025 accreditation.

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JANX

Parma, MI

Based in Parma, MI, JANX specializes in nondestructive testing (NDT) and inspection services across the USA. With 40+ years of expertise, they offer radiographic, magnetic particle, liquid penetrant, ultrasonic, and visual testing. The company also provides certified welding inspection and pipeline integrity for various industries.

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Lab Testing Inc. (LTI)

Based in Hatfield, PA, Lab Testing Inc. (LTI) is a Nadcap & A2LA accredited lab providing cutting-edge Non-Destructive Testing solutions. Serving mission-critical industries like aerospace, military, and space, LTI also offers material testing and calibration services, ensuring uncompromised quality for complex material characterization and production testing.

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Liberty Energy Services

Shenandoah, TX

Based in Shenandoah, TX, Liberty Energy Services provides comprehensive inspection and engineering evaluation capabilities. The company offers a full line of NDT services for Aboveground Storage Tanks, Pressure Vessels, and Piping systems. Expertise includes API-1169 certification, tank inspections, welding inspection, NACE coating, and hydrotesting, serving the energy and utility sectors.

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Lucideon

Raleigh, NC

Based in Raleigh, NC, Lucideon specializes in material solutions, utilizing expertise in materials science, testing, and assurance. They test individual structural components or full-scale reconstructions in their laboratories to evaluate structural integrity and durability, alongside offering technical consultancy.

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Material Inspection Tech Inc

Houston, TX

Based in Houston, TX, Material Inspection Tech Inc (MIT) provides comprehensive inspection services, specializing in NDE (Non-Destructive Examination), QA, welding inspection, and prefab audits. They deliver customized solutions to meet diverse project certification needs and timeframes, adhering to common industry codes and standards.

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Metallurgical Engineering Services

Richardson, TX

Based in Richardson, TX, Metallurgical Engineering Services (MES) provides independent materials testing, NDT inspections, and analysis services. As an ISO 17025 accredited lab, MES offers full-service destructive and non-destructive capabilities for metals, polymers, and composites, serving aerospace, automotive, oil and gas, medical, and military industries.

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Mid-Tex Testing, LLC

Waco, TX

Mid-Tex Testing, LLC provides comprehensive non-destructive testing (NDT) and inspection services. Based in Waco, TX, they specialize in Magnetic Particle, Liquid Penetrant, Ultrasonic, Visual, Radiographic, Hardness, and Positive Material Identification testing. They serve diverse industrial clients, ensuring quality and structural integrity.

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Modern Industries, Inc.

Based in Erie, PA, Modern Industries, Inc. offers comprehensive laboratory testing services, covering a full range of materials and environmental analysis. Supporting industries such as automotive, aerospace, medical, and military, their expertise helps assure product quality and integrity, alongside their integrated manufacturing and thermal processing capabilities.

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US Army Corps of Engineers Materials Testing Center (MTC)

The US Army Corps of Engineers Materials Testing Center (MTC), based in Vicksburg, MS, provides quality materials testing and inspection services. It also validates commercial laboratories for quality assurance and control testing required by the Corps of Engineers.

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NDT Consultancy Services Inc.

Houston, TX

Based in Houston, TX, NDT Consultancy Services Inc. provides comprehensive non-destructive testing and inspection services. They offer NDT Level III services, including eddy current testing, along with consulting, auditing, and specialized training courses. The company focuses on various industrial NDT methods.

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NDT&I Labs

Signal Hill, CA

Based in Signal Hill, CA, NDT&I Labs offers nondestructive testing services including Fluorescent Penetrant Testing, Magnetic Particle Testing, and Radiography Testing. They serve the aerospace, automotive, and military sectors, inspecting products such as castings, weldments, forgings, plastics, and extrusions.

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NDT Metal Finishing Inc.

Sun Valley, CA

Based in Sun Valley, CA, NDT Metal Finishing Inc. provides non-destructive testing and cutting-edge metal finishing services. Serving the aerospace industry, the company emphasizes customer satisfaction, state-of-the-art equipment, and efficient processing. They focus on quality and timely delivery of critical aerospace components.

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NDT Solutions, LLC

New Richmond, WI

NDT Solutions, LLC provides comprehensive nondestructive testing (NDT) consulting and inspection services, alongside advanced NDT equipment and custom inspection solutions. Serving the aerospace, defense, energy, and transportation sectors, the company assists clients with complex inspection challenges, ensuring structural integrity and reliability for critical components.

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Nextant Aerospace

Cleveland, OH

Based in Cleveland, OH, Nextant Aerospace provides comprehensive Non-Destructive Testing (NDT) services for general, commercial, and military aircraft. They offer eddy current, ultrasonic, magnetic particle, liquid penetrant, radiography, and visual testing. Nextant is certified Level 2 & 3 and holds Cessna NDI approval.

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National Inspection Services

Fort Worth, TX

Based in Fort Worth, TX, National Inspection Services provides a range of non-destructive testing (NDT) services for the midstream oil and gas industry throughout the United States. Their capabilities include advanced ultrasonic testing, radiography, magnetic particle testing, phased array ultrasonic testing, positive material identification, and penetrant testing.

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Nor-Cal Pipeline Services

Roseville, CA

Based in Roseville, CA, Nor-Cal Pipeline Services provides pipeline inspection and integrity solutions. They specialize in Non-Destructive Examination (NDE), offering ultrasonic, magnetic particle, liquid penetrant, and visual inspection services. The company also performs hydrostatic testing to ensure pipeline safety and integrity for industrial clients.

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Orange Coast Testing Inc.

Orange Coast Testing Inc. provides Nondestructive (NDT) and destructive testing, covering radiographic, penetrant, magnetic particle, and eddy current inspections. For over three decades, they have served critical industries like aerospace and defense. The company maintains NADCAP and ISO accreditations, also offering consultation, training, and on-site testing.

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Pacific Magnetic & Penetrant Co., Inc

North Hollywood, CA

Based in North Hollywood, CA, Pacific Magnetic & Penetrant Co. Inc. specializes in Non-Destructive Testing (NDT) services, including Magnetic Particle and Fluorescent Penetrant Inspection. Since 1978, this 15,000 sq. ft. facility also provides chemical processing like passivation, cleaning, and passivity testing for the aerospace industry.

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Pinnacle Pipeline Inspection

Campbell, CA

Pinnacle Pipeline Inspection provides comprehensive pipeline assessment and cross-bore prevention services, specializing in condition assessment and structural integrity. Employing NASCCO certified operators and advanced CCTV and cleaning technologies, they serve municipal, government, and utility clients. Their services support buried asset management programs with accurate and reliable inspection data.

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PROtect

PROtect specializes in providing precise, API-certified NDT inspections. The company utilizes cutting-edge technology and remote field testing services designed to help clients maintain essential asset integrity.

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Maverick Welder & Materials Testing

Pasadena, TX

Based in Pasadena, TX, Maverick Welder & Materials Testing offers comprehensive non-destructive testing (NDT) services. Their capabilities include visual, liquid penetrant, magnetic particle, ultrasonic, phased array ultrasonic, and radiographic testing. They also provide destructive materials testing and professional welder services.

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Refined Inspection Services

Houston, TX

Based in Houston, TX, Refined Inspection Services provides NDT, API, and CWI field inspection services, program management, and consulting. They offer WPS development, welder qualifications, and NDT program oversight for petrochemical, marine, aerospace, and railroad industries. The company also delivers compliant NDT training.

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Regional NDT

Oxnard, CA

Based in Oxnard, CA, Regional NDT specializes in providing comprehensive non-destructive testing services. They utilize various NDT methods to assess material integrity and ensure quality assurance for industrial clients across different sectors.

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Reliant NDT

Linden, TX

Based in Linden, TX, Reliant NDT is a full-service provider of nondestructive testing services. They offer NDT equipment manufacturing, inspection, and consulting, specializing in Ultrasonic and Magnetic Particle Testing Systems. Reliant NDT serves the tubular goods, steel plate, billet, and aerospace industries.

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Pacific Materials Laboratory

Goleta, CA

Based in Goleta, California, Pacific Materials Laboratory offers a wide range of non-destructive testing (NDT) services. Their expertise includes magnetic particle, liquid penetrant, ultrasonic, eddy current, and visual inspection. The laboratory also performs metallurgical analysis, chemical testing, environmental services, and welding certifications for industrial clients.

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SEAL Aviation

SEAL Aviation provides specialized mobile non-destructive testing (NDT) services for the aviation industry. They offer comprehensive NDT inspections, available both on-site for convenience or through their dedicated lab services. This company delivers critical integrity assessments for various aircraft.

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Standard Inspection Services

San Diego, CA

Standard Inspection Services, based in San Diego, CA, offers non-destructive testing and consulting services. They support shipbuilding, ship repair, construction, aerospace, bridge, pipeline, and manufacturing industries. The company also provides comprehensive solutions for ship maintenance, fabrication, and modernization for commercial and government clients, notably the US Navy.

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Sterling Inspection LLC

Signal Hill, CA

Sterling Inspection LLC, based in Signal Hill, CA, is a veteran-owned, full-service Non-Destructive Testing (NDT) and weld inspection company established in 2008. They provide Ultrasonic Testing (UT) and Dye Penetrant Testing (PT) services to diverse industrial clients in construction, oil drilling, manufacturing, facility maintenance, and marine sectors.

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Structural Integrity Associates, Inc.

Huntersville, NC

Structural Integrity Associates, Inc. is an engineering and consulting firm specializing in the identification, analysis, and prevention of engineering failures. They integrate Non-Destructive Examination (NDE) with engineering practices to support the reliable operation of critical infrastructure, offering actionable solutions for technical issues.

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TechCorr

Pasadena, TX

Based in Pasadena, TX, TechCorr offers asset integrity management and non-destructive testing (NDT) services. The company provides pipeline non-destructive evaluation (NDE) for precise, real-time assessments without operational interruptions. TechCorr inspects, tests, and evaluates critical assets across diverse industries.

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The LAB - Materials Testing

Rancho Cucamonga, CA

Based in Rancho Cucamonga, CA, The LAB - Materials Testing offers comprehensive services including Non-Destructive Testing (NDT), Metallographic, and Mechanical Testing. This NADCAP and A2LA accredited laboratory delivers efficient, certified reports with a focus on outstanding customer service. They provide expert advice and accurate testing results.

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Turbo Non-Destructive Testing, Inc.

Houston, TX

Based in Houston, TX, Turbo Non-Destructive Testing, Inc. offers comprehensive non-destructive testing (NDT) services. They provide traditional inspection methods, including Demagnetization, Laser Induced Breakdown Spectroscopy (LIBS), and Optical Emission Spectroscopy (OES). The company serves the chemical, oil & gas, pipeline, and power generation industries.

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U.S. Inspection & NDT

U.S. Inspection & NDT provides comprehensive nondestructive testing (NDT) services, including radiographic, ultrasonic, magnetic particle, and liquid penetrant testing. They also offer heat treatment, mechanical integrity programs, QA/QC, and welding certification. Serving construction, manufacturing, power generation, oil & gas, aviation, and infrastructure clients, the company delivers solutions for asset longevity and safety.

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WeaverNDT

Las Vegas, NV

Based in Las Vegas, NV, WeaverNDT provides Non Destructive Testing (NDT) services, including resonance testing, digital radiography, computed tomography, X-ray diffraction, and neutron radiography. The company also offers ASNT & NAS-410 Responsible Level III services, quality management consulting, and process auditing for various industries.

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Welder Testing Inc.

Deer Park, TX

Based in Deer Park, TX, Welder Testing Inc. offers comprehensive welder qualification testing and metallurgical laboratory services. The company ensures accuracy and compliance through detailed metallurgical testing processes, supported by Certified Welding Inspectors. Serving the Houston industrial sector, they provide reliable testing solutions.

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WELD Inspection & Certification LLC

Waxahachie, TX

WELD Inspection & Certification LLC provides high-quality steel inspection services, including comprehensive Non-Destructive Testing (NDT). They offer Visual, Ultrasonic, Magnetic Particle, and Liquid Penetrant testing methods. The company also specializes in Certified Welding Inspection and Welder Qualification, serving the Dallas, Austin, and San Antonio areas from Waxahachie, TX.

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West Star Aviation

East Alton, IL

West Star Aviation, based in East Alton, IL, offers 24/7/365 aircraft Non-Destructive Testing (NDT) support via certified technicians. An MRO provider, they also deliver maintenance, paint, and avionics services from multiple US facilities, serving the aviation industry.

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WJE

Northbrook, IL

Based in Northbrook, IL, WJE specializes in nondestructive evaluation methods such as ground penetrating radar and impact echo testing. The company offers extensive in-house laboratory and advanced testing capabilities for structures, construction materials, and manufactured components. WJE applies technical expertise to solve diverse client challenges.

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Xcel Group

Norman, OK

Based in Norman, OK, Xcel Group delivers conventional and advanced NDE/NDT testing services. Offerings include ultrasonic testing (UT, PAUT, AUT), digital radiography, laser mapping, and guided wave ultrasonics. They specialize in pipeline and mechanical integrity inspections, ensuring safety and compliance across diverse industrial sectors.

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IRISNDT

Menlo Park, CA

IRISNDT provides NDT, inspection, and integrity engineering services, utilizing advanced techniques for industries like refinery, petrochemical, chemical, and aerospace. They offer visual welding and API inspections (510, 570, 653) to ensure quality and safety for industrial components and structures.

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Non Destructive Evaluation Inc

Non Destructive Evaluation Inc (NDEI) provides extensive non-destructive testing and inspection services. They specialize in evaluating the integrity of both metal and composite equipment, including critical assets such as tanks, pressure vessels, and complex piping systems, supporting various industrial applications.

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Sixense Group

Los Angeles, CA

Sixense Group provides structural integrity inspection and monitoring services for infrastructure and construction projects. They specialize in assessing the condition and behavior of structures, optimizing maintenance, and securing construction. Their expertise includes engineering, consulting, and digital solutions, supporting clients throughout the asset lifecycle.

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SOCOTEC US

SOCOTEC US provides Nondestructive Testing (NDT) services across various methodologies. These include radiography, ultrasonic testing, magnetic particle inspection, eddy current testing, penetrant testing, and visual inspections. The company delivers essential quality assurance and integrity management solutions for industrial and commercial clients.

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American Engineering Testing (AET)

Based in St. Paul, MN, American Engineering Testing (AET) provides NDT services encompassing ultrasonic, radiographic, magnetic particle, penetrant, and visual testing. The firm offers critical investigations, materials testing, and inspection for various engineering disciplines including construction, geotechnical, pavement, forensic, and environmental sectors.

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Westinghouse Nuclear

Westinghouse Nuclear provides non-destructive examination (NDE) services and products, primarily serving the power generation industry. Based in Cranberry Township, PA, they also offer a custom technology library, 3D visualization tools, and training solutions for nuclear engineering professionals and plant operations.

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North Star Imaging

Aliso Viejo, CA

North Star Imaging offers advanced X-ray and industrial CT inspection systems, along with 2D X-ray and 3D CT scanning services. They provide high-energy scanning, X-ray simulation software, technical training for Level 1, 2, and 3 radiography personnel certification, and comprehensive system support for NDT applications.

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Acuren

Tomball, TX

Based in Tomball, TX, Acuren delivers NDT-related services including engineering, inspection, and rope access solutions. They specialize in fitness-for-service assessments, laboratory testing, failure analysis, and mechanical testing for critical industrial and infrastructure components. Acuren provides comprehensive reliability services for a safer world.

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AES NDT

Torrance, CA

Based in Torrance, CA, AES NDT specializes in providing effective and comprehensive non-destructive testing services. The company emphasizes the quality of its inspections and prioritizes safety in every job. AES NDT offers essential testing capabilities to ensure integrity and reliability for its clients.

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American Metal Testing

La Porte, IN

American Metal Testing is a NADCAP-accredited lab based in La Porte, IN, providing comprehensive NDT services. They specialize in Fluorescent Penetrant Inspection for nonferrous materials, Magnetic Particle Inspection for ferromagnetic materials, and Radiographic Inspection to detect hidden flaws.

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American Piping Inspection

Pearland, TX

Based in Pearland, TX, American Piping Inspection (API) provides comprehensive nondestructive testing (NDT), pipeline integrity, and inspection services. The company serves the demanding oil, gas, and energy industries, offering specialized solutions to ensure the safety and reliability of critical infrastructure across multiple US locations.

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American Testing Services

Miamisburg, OH

Based in Miamisburg, OH, American Testing Services specializes in comprehensive nondestructive testing (NDT) solutions. They offer services including ultrasonic, eddy current, and radiographic inspections to confirm product and infrastructure safety and stability. The company helps clients discover and prevent vulnerabilities, delivering dependable results and immediate response for industrial applications.

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Apex Testing Labs

San Francisco, CA

Based in San Francisco, CA, Apex Testing Labs offers construction inspection, material testing, and special inspection services. They provide laboratory testing, quality assurance/control, environmental, geotechnical, and concrete scanning. The company has been serving clients since 1996 and is a certified local and small business.

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Arc Inspection Services

Krum, TX

Based in Krum, TX, Arc Inspection Services provides comprehensive non-destructive testing (NDT) and weld inspection solutions with over 30 years of experience. The company offers 24/7 services, utilizing advanced technology like X-ray trucks to meticulously examine welds within pipelines, ensuring regulatory compliance.

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Applied Standards Inspection, Inc.

Beaumont, TX

Based in Beaumont, TX, Applied Standards Inspection, Inc. (ASII) provides comprehensive 24/7 non-destructive testing and inspection services. Established in 1981, ASII offers ultrasonic testing, radiography, positive material identification, magnetic particle inspection, dye penetrant, Brinell hardness, and vacuum box testing to industrial clients in Southeast Texas.

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Applied Technical Services (ATS)

Alexandria, VA

Applied Technical Services (ATS) provides a wide range of Non-Destructive Testing (NDT) inspection services. The company specializes in aviation, field, and lab inspection solutions for various industrial sectors across its numerous US facilities.

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Independent Electronic Inspection, Inc.

Hermosa Beach, CA

Based in Hermosa Beach, CA, Independent Electronic Inspection, Inc. (IEI) provides eddy current inspection services primarily to the HVAC market. Established in 1982, the company offers extensive NDE field service experience and designs innovative eddy current probes. IEI also provides Belzona epoxy coating and tube replacing services.

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Bureau Veritas North America

Bureau Veritas North America provides comprehensive testing, inspection, and certification services. They offer Magnetic Particle Testing for detecting surface and near-surface discontinuities, alongside soil testing for environmental laboratories. Their expertise extends to the energy, infrastructure, and certification sectors, serving a broad range of industrial and commercial clients.

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Contact Ultrasonics & Inspection Consulting Inc.

Lumberton, TX

Based in Lumberton, TX, Contact Ultrasonics & Inspection Consulting Inc. offers non-destructive testing (NDT) and Level III consulting. Specializing in UT, RT, MT, and PT, they perform industrial inspections for upstream and downstream clients including drilling rigs, chemical plants, and fabrication shops. Certified AWS/CWI and ASNT Level III technicians ensure code compliance.

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Industrial Welding Inspection of El Paso

El Paso, TX

Based in El Paso, TX, Industrial Welding Inspection of El Paso provides professional welding inspection and non-destructive testing (NDT) services. The company offers Magnetic Particle, Liquid Penetrant, Ultrasonic, Visual, and Radiographic Testing, leveraging AWS Certified Welding Inspectors and NDT technicians to serve industrial clients in the region.

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Dallas Weld Inspections

Dallas, TX

Based in Dallas, TX, Dallas Weld Inspections delivers professional weld inspections, welder qualifications, and shop surveillance. Their team of AWS and ASNT-certified inspectors offers independent third-party services, providing detailed, photo-backed reports. They assist fabricators, contractors, and project managers throughout the DFW area to ensure safety and compliance.

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Element Materials Technology

Cypress, TX

Element Materials Technology is a global leader in non-destructive testing (NDT) services. They provide a comprehensive range of advanced NDT techniques, including radiographic, ultrasonic, magnetic particle, and liquid penetrant testing, to assess material integrity and product reliability. Serving critical industries like aerospace, oil & gas, and power generation, they ensure compliance and safety.

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Industrial Inspection & Analysis (IIA)

Brush Prairie, WA

Based in Brush Prairie, WA, Industrial Inspection & Analysis (IIA) offers comprehensive non-destructive testing and inspection services. They provide fire hose, pump, and nozzle testing, along with X-ray testing for part defects and compliance. IIA is also accredited for ANSI/ASHRAE Standard 171 for seismic and wind restraints.

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Intermountain Testing Company

Englewood, CO

Based in Englewood, CO, Intermountain Testing Company provides NDT services and inspections. Their capabilities include visual, radiographic (testing carbon steel up to 6" thick and concrete up to 20"), eddy current, liquid penetrant, ultrasonic, and magnetic particle testing. They also offer welding qualifications.

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L.A. X-RAY Non Destructive Testing & Inspection Services

Sun Valley, CA

L.A. X-RAY is a NADCAP approved NDT facility and FAA Certified Repair Station in Sun Valley, CA. They provide comprehensive non-destructive testing and inspection services for corporate, commercial, and government organizations. Offerings include onsite structural inspections for aerospace components and advanced laboratory services like real-time radiography, weldment analysis, and composite testing.

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Mitchell Laboratories

South Gate, CA

Based in South Gate, California, Mitchell Laboratories provides non-destructive testing (NDT) services for complex industrial applications. The company supports visionaries and innovators in critical sectors, including aerospace, exploration, and national security, by ensuring the reliability and safety of their materials and components.

Phone available

ND Testing

Fontana, CA

Based in Fontana, CA, ND Testing specializes in Non-Destructive Testing (NDT) services. They employ advanced techniques like Radiographic Testing (RT), Ultrasonic Testing (UT), Magnetic Particle Testing (MT), and Liquid Penetrant Testing (PT). Their skilled professionals ensure the quality and safety of various materials and structures through accurate defect detection.

Phone available

Phoenix Neutron Imaging

Fitchburg, WI

Phoenix Neutron Imaging provides nondestructive testing, specializing in neutron and nCT imaging for aerospace, defense, and other industrial sectors. The company helps manufacturers ensure product performance, safety, and reliability. Certified AS9100 and NAS 410, they also support R&D and root cause analysis.

Phone available

Pyramid Testing

Santa Fe Springs, CA

Based in Santa Fe Springs, CA, Pyramid Testing provides comprehensive Non-Destructive Testing (NDT) services. They specialize in UT, MT, PT, RT, VT, and ET methods for aerospace, power generation, and manufacturing industries. The company also offers NDT Level III consulting and training, utilizing its own qualified personnel and equipment.

Phone available

Sound NDT Solutions

Conroe, TX

Based in Conroe, TX, Sound NDT Solutions provides comprehensive advanced non-destructive testing services. They specialize in methods like Phased Array Ultrasonic Testing (PAUT), Time of Flight Diffraction (TOFD), and Automated Ultrasonic Testing (AUT). Serving industries including Oil & Gas, Power Generation, and Manufacturing, they ensure asset integrity.

Phone available

Tejas Testing & Inspection Inc

Schriever, LA

Based in Schriever, LA, Tejas Testing & Inspection Inc. (a PDI Company) provides comprehensive inspection, NDE testing, operations, and maintenance solutions. Serving the energy, oil, gas, and renewable energy sectors, they also supply skilled professional personnel to support client projects and operations.

Phone available

Testing Engineers Inc

San Leandro, CA

Based in San Leandro, CA, Testing Engineers Inc. specializes in providing professional engineering and material testing services. The company offers comprehensive assessments, supporting industrial and commercial clients with crucial data on structural integrity and compliance.

Phone available

Thunder Testing

La Puente, CA

Based in La Puente, CA, Thunder Testing provides non-destructive testing and inspection services for electrical systems. Their capabilities include infrared thermal imaging, ultrasonic inspections, cable testing, transformer testing, and power quality analysis. They specialize in detecting electrical issues, assessing system integrity, and enhancing equipment performance.

Phone available

Total NDT, LLC.

White Oak, TX

Based in White Oak, TX, Total NDT, LLC. offers comprehensive non-destructive testing services. The company provides customers with qualified technicians, certified to ASNT SNT-TC-1A, boasting extensive experience and adherence to superb safety standards. They deliver personalized care with 24/7 on-call services.

Phone available

Westmoreland Mechanical Testing and Research, Inc.

Based in Youngstown, PA, Westmoreland Mechanical Testing & Research, Inc. provides comprehensive materials testing services. Established in 1967, their state-of-the-art facility is staffed by experienced professionals in metallurgy, mechanical engineering, and chemistry. The company serves diverse industries, upholding principles of innovation and quality.

Phone available

DEKRA North America

DEKRA North America offers extensive testing, inspection, certification, and consulting services for various industries. Specializing in industrial inspections, including remote visual monitoring of hazardous sites, and comprehensive product testing, they aim to improve safety, efficiency, and reliability. DEKRA protects people, assets, and communities.

No contact on file

MISTRAS Group

MISTRAS Group is a global provider of non-destructive testing (NDT) services and comprehensive asset protection solutions. They offer a vast suite of traditional NDT methods, field inspections, lab testing, and maintenance services to safeguard critical assets across various industries worldwide.

No contact on file

NDT Global

Houston, TX

Based in Houston, TX, NDT Global specializes in advanced non-destructive testing (NDT) and inspection services for pipelines. The company leverages innovative technology, including its CIGMA-x™ system, to provide comprehensive pipeline insight through unified expertise, ensuring clarity and reliability for industrial clients.

No contact on file

USA Field Services

USA Field Services provides third-party inspection services to the pipeline, oil, telecommunications, and natural gas industries. They also offer project and construction management, environmental services, and land services across the U.S.

No contact on file

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How to Choose a Company

  • Verify their ASNT Level III personnel hold certifications specific to the NDT methods you require (e.g., UT, RT, ET) and the materials you are inspecting, as general Level III certification might not cover advanced techniques like Time-of-Flight Diffraction (TOFD) or Phased Array Ultrasonic Testing (PAUT).
  • Confirm their accreditation and compliance with industry-specific standards. For aerospace components, NADCAP accreditation for specific NDT processes is non-negotiable, while for pressure vessels, adherence to ASME Boiler & Pressure Vessel Code Section V and API inspection standards (e.g., API 510, 570, 653) is paramount.
  • Assess their data management and reporting capabilities. For large-scale integrity projects or regulatory audits, you'll need robust, auditable digital records, potentially including corrosion mapping software integration and secure cloud storage, not just handwritten reports or film archives.
  • Inquire about their equipment calibration traceability and maintenance schedules. Subpar or uncalibrated equipment can lead to inaccurate defect detection, invalidating your entire inspection effort and exposing your organization to significant operational and safety risks.
  • Be wary of providers who propose a single, inexpensive NDT method for all your inspection needs without first understanding your specific defect types, material properties, and regulatory requirements. A truly competent NDT consultant will recommend a tailored, multi-method approach if necessary, often involving a combination of surface and volumetric techniques.

Frequently Asked Questions

What NDT methods are best suited for detecting sub-surface weld flaws in various materials?

For internal weld flaws like lack of fusion, porosity, or cracking, volumetric methods are crucial. Ultrasonic Testing (UT), especially advanced techniques like Phased Array Ultrasonic Testing (PAUT) and Time-of-Flight Diffraction (TOFD), offers excellent flaw sizing and location capabilities in steel and other metals. Radiographic Testing (RT) is also effective for many materials, providing a permanent visual record, though it can present safety and logistical challenges due to radiation.

How do I ensure an NDT provider's personnel are properly qualified for a critical aerospace component inspection?

Always request proof of current ASNT Level II or Level III certifications for the specific NDT methods involved (e.g., UT, ET, MT, PT) and ensure these certifications comply with NAS 410 or equivalent aerospace standards. Furthermore, confirm the provider holds NADCAP accreditation for their NDT processes. This accreditation signifies adherence to a rigorous quality management system specifically tailored for aerospace manufacturing and MRO.

What's the difference between conventional Radiographic Testing (RT) and Digital Radiography (DR) or Computed Radiography (CR)?

Conventional RT uses film, requiring chemical processing and physical storage, which is time-consuming and generates hazardous waste. Digital Radiography (DR) utilizes flat-panel detectors for immediate digital images, while Computed Radiography (CR) uses reusable phosphor plates that are scanned by a laser to digitize the image. Both DR and CR offer faster throughput, enhanced image manipulation for better defect visibility, and easier digital archiving, improving efficiency and environmental footprint.

What critical data should I expect in an NDT inspection report for a pressure vessel?

A comprehensive NDT report for a pressure vessel should detail the specific NDT method(s) used, equipment calibration records, and the qualifications (ASNT levels) of the personnel performing the inspection. It must include a clear description of all indications found (type, location, size), the acceptance/rejection criteria applied (e.g., ASME Section VIII, API 510), and a final evaluation of the component's integrity. Additionally, detailed sketches or isometric drawings indicating inspection areas and flaw locations are essential.

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