Company lists · Data refreshed November 2026

Top 25 Nondestructive testing laboratories worldwide

RevenueBase identified 3,594 company matches for nondestructive testing laboratories worldwide as of November 2026 and tracks 50,866 professional contacts across them, including 10,484 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers company matches for nondestructive testing laboratories worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026. Country and city lists for nondestructive testing laboratories follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
3,594Companies
50,866Contacts tracked
10,484Verified emails
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The 25 largest nondestructive testing laboratories worldwide

Ranked by team size
Top 25 of 3,594 company matches for nondestructive testing laboratories worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchMadrid, ItalyHQ recorded Nov 6, 202610001+1,442 contacts →

Exact match

“Applus+ is globally recognized across all phases of the oil and gas industry, including upstream, midstream, and downstream, both on land and at sea.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchEdmonton, CanadaHQ recorded Nov 6, 202610001+1,236 contacts →

Exact match

“One of the largest independent Asset Integrity companies.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchMarietta, GA, United StatesHQ recorded Nov 6, 20261,001-5,000961 contacts →

Exact match

“Applied Technical Services assists commercial and industrial clients by providing inspection, testing, consulting engineering, and calibration services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchJakarta Selatan, IndonesiaHQ recorded Nov 6, 2026501-1,000737 contacts →

Exact match

“Starting from an Inspection Department of one of the pioneering companies of the Radiant Group’s businesses with specialization in the field of Non Destructive Testing (NDT) back…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchBergen, NorwayHQ recorded Nov 6, 20265,001-10,000656 contacts →

Exact match

“Oceaneering Asset Integrity is one of the largest providers of Integrity and Inspection Services in the world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchQuébec, QC, CanadaHQ recorded Nov 6, 20261,001-5,000530 contacts →

Exact match

“Headquartered in beautiful Québec, Canada, Eddyfi Technologies provides the highest performance Non-Destructive Testing (NDT) inspection technologies and robotic solutions in the…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchSaudi ArabiaHQ recorded Nov 6, 2026501-1,000445 contacts →

Exact match

“NDT Corrosion Control Services Co.(NDTCCS) was established in 1975, with Head Office in Dammam, Kingdom of Saudi Arabia with branches in other GCC countries, UAE, Qatar, Kuwait…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchHürth, GermanyHQ recorded Nov 6, 20261,001-5,000411 contacts →

Exact match

“Waygate Technologies, a Baker Hughes business, is an industrial inspection solutions company and the world leader in non-destructive testing (NDT).”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchMumbai, IndiaHQ recorded Nov 6, 2026501-1,000379 contacts →

Exact match

“We provide Third-Party Inspection, Conventional & Advanced Non-Destructive Testing (NDT) and Heat Treatment Services in Oil & Gas Sector, Flow Lines, Heavy Engineering, Onshore…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchTomball, TX, United StatesHQ recorded Nov 6, 20265,001-10,000366 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchGray, TX, United StatesHQ recorded Nov 6, 2026201-500355 contacts →

Exact match

“NVI is a provider of industrial NDT solutions catering to companies with critical infrastructure needs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchHuntersville, GA, United StatesHQ recorded Nov 6, 2026201-500299 contacts →

Exact match

“Structural Integrity Associates is the most-trusted provider of proven engineering services for the energy and process industries.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchAlkhobar, Saudi ArabiaHQ recorded Nov 6, 20261,001-5,000262 contacts →

Exact match

“Established in 2008, Axis Inspection Contracting JSC.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchAberdeen, United KingdomHQ recorded Nov 6, 2026201-500217 contacts →

Exact match

“Sonomatic is a worldwide organisation that specialises in the design, development, and application of Non-Destructive Testing (NDT) inspections.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchSan Ramon, HI, United StatesHQ recorded Nov 6, 2026201-500208 contacts →

Exact match

“At Consolidated Engineering Laboratories (CEL) we consider ourselves more than a Testing Laboratory.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchLeague City, TX, United StatesHQ recorded Nov 6, 2026201-500200 contacts →

Exact match

“PK Technical & Inspection is an advanced non-destructive testing and inspection company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchMuscat, OmanHQ recorded Nov 6, 202651-200198 contacts →

Exact match

“SIEVERT INDIA was established in the year 1986 with a view to give quality and prompt services in the field of NDT.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchSingaporeHQ recorded Nov 6, 2026201-500198 contacts →

Exact match

“CAST Laboratories Pte Ltd (‘CAST Lab’) was established in 1981 as an independent testing and quality centre.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchLong Beach, CA, United StatesHQ recorded Nov 6, 2026201-500191 contacts →

Exact match

“Twining has continued to expand and evolve since its inception more than a century ago.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchKaty, United StatesHQ recorded Nov 6, 2026201-500186 contacts →

Exact match

“UTQuality is a global industrial engineering company specializing in groundbreaking non-destructive testing services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchLongview, KS, United StatesHQ recorded Nov 6, 2026201-500183 contacts →

Exact match

“XCEL is an industrial inspection company with a unique blend of services focused on your compliance needs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchPasadena, TX, United StatesHQ recorded Nov 6, 2026501-1,000179 contacts →

Exact match

“The TechCorr name is synonymous with safe, quality inspection services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchSetapak, MalaysiaHQ recorded Nov 6, 2026501-1,000173 contacts →

Exact match

“Energy Workforce Group is an International Company with its head quarters in Kuala Lumpur, Malaysia with subsidiaries in Singapore, Thailand, India & Canada.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchVinhedo, BrazilHQ recorded Nov 6, 202651-200165 contacts →

Exact match

“Oferecemos soluções em inspeção e ensaios não destrutivos convencionais e não convencionais, e serviços metalúrgicos laboratoriais.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchDeer Park, TX, United StatesHQ recorded Nov 6, 20261,001-5,000164 contacts →

Exact match

“QualSpec is a leading industrial inspection firm headquartered in Houston, Texas.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 3,594 nondestructive testing laboratories worldwide

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Nondestructive testing laboratories worldwide at a glance

As of Nov 6, 2026
20.6%Verified-email coverage
14.2Average contacts per company
11-50Median size (employees)
1.2%Largest-city concentration · Houston
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
1,565
11-50
1,336
51-200
490
201-500
124
501-1,000
31
1,001-5,000
11
5,001-10,000
4
10001+
5

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for nondestructive testing laboratories are linked below.
What qualifies
Company records worldwide whose business descriptions match “nondestructive testing laboratories” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 10,484 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Nondestructive testing laboratories by location

19 lists · largest first

Every Nondestructive testing laboratories list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “nondestructive testing laboratories”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many nondestructive testing laboratories are there worldwide?

RevenueBase identified 3,594 company matches for nondestructive testing laboratories worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Applus OIL And GAS tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most nondestructive testing laboratories?

The United States leads with 615 companies, followed by India (401) and the United Kingdom (190). Every nondestructive testing laboratories list by country and city is linked on this page.

Which city has the most nondestructive testing laboratories?

Houston leads with 44 company records, followed by Chennai (40) and Mumbai (36).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 10,484 professional contacts with verified work emails tracked across these 3,594 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.