Company lists · Data refreshed September 2026

Top 25 Quality control testing companies worldwide

Name: Quality control testing companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 4,681 companies tracked

RevenueBase identified 4,681 quality control testing companies worldwide as of September 2026 and tracks 310,163 professional contacts across them, including 78,202 with verified work emails. The United States is the largest market and Istanbul the largest hub.

This list covers quality control testing companies worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 21, 2026. Country and city lists for quality control testing companies follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review

4,681Companies

310,163Contacts tracked

78,202Verified emails

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The 25 largest quality control testing companies worldwide

Ranked by team size

Top 25 of 4,681 quality control testing companies worldwide, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to quality control testing companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	SGS	Partial evidence	Baar, SwitzerlandHQ checked Sep 21, 2026	10001+	60,606 contacts →
	Partial evidence “SGS is the world’s leading Testing, Inspection and Certification company.” Source: RevenueBase Database · checked Sep 21, 2026
2	Bureau Veritas	Partial evidence	Paris, FranceHQ checked Sep 21, 2026	10001+	46,434 contacts →
	Partial evidence “Bureau Veritas is a world leader in Testing, Inspection and Certification.” Source: RevenueBase Database · checked Sep 21, 2026
3	Intertek	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	10001+	23,155 contacts →
	Partial evidence “Intertek is a leading Total Quality Assurance provider to industries worldwide.” Source: RevenueBase Database · checked Sep 21, 2026
4	Eurofins	Indirect evidence	LuxembourgHQ checked Sep 21, 2026	10001+	11,653 contacts →
	Indirect evidence “Since 1987, Eurofins has grown from one laboratory in Nantes, France to over staff across a network of independent companies in 59 countries, operating over 950 laboratories.” Source: RevenueBase Database · checked Sep 21, 2026
5	ALS	Partial evidence	Bowen Hills, AustraliaHQ checked Sep 21, 2026	10001+	9,234 contacts →
	Partial evidence “A global leader in testing, ALS provides comprehensive testing solutions to clients in a wide range of industries around the world.” Source: RevenueBase Database · checked Sep 21, 2026
6	TÜV Rheinland Group	Partial evidence	Cologne, GermanyHQ checked Sep 21, 2026	10001+	7,928 contacts →
	Partial evidence “Neutral, independent third party For more than 150 years, TÜV Rheinland has stood for ensuring quality, safety, and efficiency in conjunction with people, the environment, and…” Source: RevenueBase Database · checked Sep 21, 2026
7	Applus	Partial evidence	Madrid, SpainHQ checked Sep 21, 2026	10001+	6,478 contacts →
	Partial evidence “Applus+ is a worldwide leader in the testing, inspection, and certification sector.” Source: RevenueBase Database · checked Sep 21, 2026
8	DEKRA	Indirect evidence	Stuttgart, GermanyHQ checked Sep 21, 2026	10001+	5,573 contacts →
	Indirect evidence “For more than 100 years, DEKRA has been a trusted name in safety.” Source: RevenueBase Database · checked Sep 21, 2026
9	Pt. Sucofindo	Indirect evidence	South Jakarta, IndonesiaHQ checked Sep 21, 2026	5,001-10,000	4,881 contacts →
	Indirect evidence “SUCOFINDO was established in 1956 as a joint venture company between the Government of the Republic of Indonesia and SGS, Geneve, Switzerland.” Source: RevenueBase Database · checked Sep 21, 2026
10	Element Materials Technology	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	5,001-10,000	4,200 contacts →
	Partial evidence “The Element Materials Technology Group is one of the world’s leading global providers of testing, inspection, and certification services for a diverse range of products…” Source: RevenueBase Database · checked Sep 21, 2026
11	Amspec Group	Partial evidence	Cranbury, NJ, United StatesHQ checked Sep 21, 2026	5,001-10,000	3,447 contacts →
	Partial evidence “The AmSpec Group has been relied upon in the testing, inspection, and certification (TIC) sector for several decades.” Source: RevenueBase Database · checked Sep 21, 2026
12	Formel D Group	Partial evidence	Köln, GermanyHQ checked Sep 21, 2026	10001+	2,758 contacts →
	Partial evidence “Formel D is a global service provider for testing, inspection & certification.” Source: RevenueBase Database · checked Sep 21, 2026
13	OCA Global	Strong evidence	Sant Cugat Del Valles, SpainHQ checked Sep 21, 2026	1,001-5,000	2,690 contacts →
	Strong evidence “OCA Global is a private business group –with headquarters in Spain–, dedicated to inspection, quality control, certification, testing, consulting, and training activities.” Source: RevenueBase Database · checked Sep 21, 2026
14	TUV India Pvt. LTD	Indirect evidence	Mumbai, IndiaHQ checked Sep 21, 2026	1,001-5,000	2,277 contacts →
	Indirect evidence “TUV India Pvt.” Source: RevenueBase Database · checked Sep 21, 2026
15	Cotecna	Partial evidence	Plainpalais, SwitzerlandHQ checked Sep 21, 2026	5,001-10,000	2,274 contacts →
	Partial evidence “Cotecna is a leading provider of testing, inspection and certification services.” Source: RevenueBase Database · checked Sep 21, 2026
16	Pace Analytical Services	Indirect evidence	Minneapolis, MN, United StatesHQ checked Sep 21, 2026	1,001-5,000	2,228 contacts →
	Indirect evidence “Pace® Science and Technology Company makes the world a safer, healthier place.” Source: RevenueBase Database · checked Sep 21, 2026
17	Control Union	Partial evidence	Rotterdam, NetherlandsHQ checked Sep 21, 2026	1,001-5,000	1,678 contacts →
	Partial evidence “Control Union is a private international company that has been serving the commodity market since 1920.” Source: RevenueBase Database · checked Sep 21, 2026
18	QIMA	Partial evidence	Hong KongHQ checked Sep 21, 2026	5,001-10,000	1,549 contacts →
	Partial evidence “QIMA is more than a testing, inspection, certification, and compliance company: We are on a mission to offer clients smart solutions to make products consumers can trust.” Source: RevenueBase Database · checked Sep 21, 2026
19	Agat Laboratories	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 21, 2026	1,001-5,000	1,071 contacts →
	Indirect evidence “Since 1979, AGAT Laboratories has been empowering clients with trustworthy data and unmatched client relations.” Source: RevenueBase Database · checked Sep 21, 2026
20	A1qa	Strong evidence	Decatur, GA, United StatesHQ checked Sep 21, 2026	1,001-5,000	980 contacts →
	Strong evidence “a1qa is a global software testing and QA outsourcing company trusted by IT firms and Fortune 500 enterprises to deliver software quality that holds under real-world pressure.” Source: RevenueBase Database · checked Sep 21, 2026
21	Applied Technical Services, LLC	Partial evidence	Marietta, GA, United StatesHQ checked Sep 21, 2026	1,001-5,000	890 contacts →
	Partial evidence “Applied Technical Services assists commercial and industrial clients by providing inspection, testing, consulting engineering, and calibration services.” Source: RevenueBase Database · checked Sep 21, 2026
22	Socotec UK & Ireland	Indirect evidence	Burton Upon Trent, United KingdomHQ checked Sep 21, 2026	1,001-5,000	844 contacts →
	Indirect evidence “SOCOTEC UK is a network of industry-leading experts we empower ambitious businesses at every stage of the asset lifecycle.” Source: RevenueBase Database · checked Sep 21, 2026
23	British Engineering Services Group	Partial evidence	Warrington, United KingdomHQ checked Sep 21, 2026	1,001-5,000	776 contacts →
	Partial evidence “Testing, inspection, certification and compliance is our core business so that’s what gets 100% of our focus.” Source: RevenueBase Database · checked Sep 21, 2026
24	Nelson Labs	Partial evidence	Salt Lake City, UT, United StatesHQ checked Sep 21, 2026	501-1,000	775 contacts →
	Partial evidence “Nelson Labs is a global leader in microbiological and analytical chemistry testing and advisory services for the medical device and pharmaceutical industries.” Source: RevenueBase Database · checked Sep 21, 2026
25	Trigo Aerospace Defense & Rail	Partial evidence	Toulouse, FranceHQ checked Sep 21, 2026	10001+	749 contacts →
	Partial evidence “Founded in 1997, TRIGO is a multinational company providing operational Quality Management solutions for the manufacturing sector, especially in the transportation industries.” Source: RevenueBase Database · checked Sep 21, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: quality control testing companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names quality control testing companies.
Partial evidence: Its own public description names part of quality control testing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name quality control testing companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 4,681 quality control testing companies worldwide

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Quality control testing companies worldwide at a glance

As of Sep 21, 2026

25.2%Verified-email coverage

66.3Average contacts per company

11-50Median size (employees)

0.8%Largest-city concentration · Istanbul

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

1,576

11-50

1,766

51-200

809

201-500

271

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among quality control testing companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for quality control testing companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “quality control testing companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names quality control testing companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among quality control testing companies, and records with no verified work email.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 78,202 across the full list. 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 September 21, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Quality control testing companies by location

24 lists · largest first

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

Countries

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names quality control testing companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many quality control testing companies are there worldwide?

RevenueBase identified 4,681 quality control testing companies worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

SGS, headquartered in Baar, tops this list with the largest team on record.

Which country has the most quality control testing companies?

The United States leads with 626 companies, followed by India (492) and Brazil (306). Every quality control testing companies list by country and city is linked on this page.

Which city has the most quality control testing companies?

Istanbul leads with 39 headquartered companies, followed by Sao Paulo (31) and Shenzhen (30).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 78,202 verified decision-maker contacts tracked across these 4,681 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 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 Smart Search, 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.