Company lists · Data refreshed November 2026

Top 25 Quality management system auditors worldwide

RevenueBase identified 5,247 company matches for quality management system auditors worldwide as of November 2026 and tracks 251,777 professional contacts across them, including 68,797 with verified work emails. India is the largest market and Sao Paulo the largest hub.

This list covers company matches for quality management system auditors 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 quality management system auditors 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
5,247Companies
251,777Contacts tracked
68,797Verified emails
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The 25 largest quality management system auditors worldwide

Ranked by team size
Top 25 of 5,247 company matches for quality management system auditors 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 matchBaar, SwitzerlandHQ recorded Nov 6, 202610001+65,863 contacts →

Exact match

“SGS is the world’s leading Testing, Inspection and Certification company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchParis, United KingdomHQ recorded Nov 6, 202610001+50,489 contacts →

Exact match

“Bureau Veritas is a world leader in Testing, Inspection and Certification.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchLondon, NY, United KingdomHQ recorded Nov 6, 202610001+24,944 contacts →

Exact match

“Intertek is a leading Total Quality Assurance provider to industries worldwide.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchHøvik, NorwayHQ recorded Nov 6, 202610001+16,914 contacts →

Exact match

“DNV is the independent expert in risk management and assurance, operating in more than 100 countries.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchMunich, GermanyHQ recorded Nov 6, 202610001+14,378 contacts →

Exact match

“TÜV SÜD is the trusted partner of choice for safety, security and sustainability solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchCologne, GermanyHQ recorded Nov 6, 202610001+8,583 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchNanterre, FranceHQ recorded Nov 6, 202610001+4,012 contacts →

Exact match

“QUALITY ALONG THE SUPPLY CHAIN Founded in 1997, TRIGO Group is a multinational company providing quality solutions for the automotive, aerospace and other transport industries.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchSant Cugat Del Valles, SpainHQ recorded Nov 6, 20261,001-5,0003,061 contacts →

Exact match

“OCA Global is a private business group –with headquarters in Spain–, dedicated to inspection, quality control, certification, testing, consulting, and training activities.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchCologne, GermanyHQ recorded Nov 6, 202610001+3,044 contacts →

Exact match

“Formel D is a global service provider for testing, inspection & certification.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchFrankfurt, GermanyHQ recorded Nov 6, 20261,001-5,0001,466 contacts →

Exact match

“DQS – Leveraging Quality, Driving Success.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchVilvoorde, BelgiumHQ recorded Nov 6, 20261,001-5,0001,314 contacts →

Exact match

“Vinçotte (a Kiwa company since May 2022) offers objective and advisory services in inspection, certification, conformity assessment and training.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchMadrid, SpainHQ recorded Nov 6, 2026501-1,0001,022 contacts →

Exact match

“AENOR is a global company, that identifies and helps organizations to overcome relevant competitiveness gaps.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchWarrington, United KingdomHQ recorded Nov 6, 20261,001-5,000787 contacts →

Exact match

“Testing, inspection, certification and compliance is our core business so that’s what gets 100% of our focus.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchPinhais, BrazilHQ recorded Nov 6, 2026501-1,000721 contacts →

Exact match

“A Kuhlmann atua na área de supervisão e controle de cargas desde 1989.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchCayes, HaitiHQ recorded Nov 6, 2026201-500605 contacts →

Exact match

“Intedya is an Global Company specialized in Consulting, Training, Auditing based on International and Local Standards and best practices to manage Quality, Environment, Food…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchKolkata, IndiaHQ recorded Nov 6, 20261,001-5,000596 contacts →

Exact match

“MSK is a leading Independent Inspection, Testing and Certification Expert, with a global network of offices and laboratories in 28 countries across 5 continents, with headquarters…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchRijswijk, NetherlandsHQ recorded Nov 6, 2026501-1,000487 contacts →

Exact match

“Kiwa behoort tot de wereldwijde top-20 op het gebied van testen, inspectie en certificering (TIC).”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchStaines-upon-thames, United KingdomHQ recorded Nov 6, 2026201-500471 contacts →

Exact match

“UKAS is the world’s leading #accreditation body delivering confidence in products and services, and supporting global value chains.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchJakarta Selatan, IndonesiaHQ recorded Nov 6, 2026201-500461 contacts →

Exact match

“TÜV NORD Indonesia, member of TÜV NORD GROUP Germany, is one of certification, inspection and testing service providers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchSon, NetherlandsHQ recorded Nov 6, 2026201-500316 contacts →

Exact match

“TÜV NORD Nederland is part of the international TÜV NORD Group and has been contributing to the daily success of many companies in the Netherlands and abroad through the provision…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchMadrid, SpainHQ recorded Nov 6, 2026201-500316 contacts →

Exact match

“EQA es una entidad internacional de certificación, verificación e inspección, con más de 25 años de trayectoria.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchBuenos Aires, ArgentinaHQ recorded Nov 6, 2026201-500313 contacts →

Exact match

“Lenor es un “Organismo de Evaluación de la Conformidad”, integrado por Organismo de Certificación, Organismo de Inspección, Servicios Industriales, Laboratorios de Ensayos y…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchEssen, GermanyHQ recorded Nov 6, 202610001+299 contacts →

Exact match

“TÜV NORD and its testing, inspection, and certification companies make our world safer and are a driving force for global innovation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchDammam, Saudi ArabiaHQ recorded Nov 6, 2026501-1,000295 contacts →

Exact match

“RICI Company Ltd.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchDunstable, MA, United KingdomHQ recorded Nov 6, 2026501-1,000289 contacts →

Exact match

“NQA is a leading global certification body, respected for providing flexible and supportive certification and training services that are technically advanced and meet the needs of…”

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

Showing 25 of 5,247 quality management system auditors worldwide

See the full list, filter by size, metro and specialty, and access 68,797 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Quality management system auditors worldwide at a glance

As of Nov 6, 2026
27.3%Verified-email coverage
48.0Average contacts per company
1-10Median size (employees)
1.1%Largest-city concentration · Sao Paulo
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
3,102
11-50
1,446
51-200
402
201-500
138
501-1,000
53
1,001-5,000
28
5,001-10,000
4
10001+
34

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 quality management system auditors are linked below.
What qualifies
Company records worldwide whose business descriptions match “quality management system auditors” 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 68,797 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.

Quality management system auditors by location

31 lists · largest first

Every Quality management system auditors 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 “quality management system auditors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many quality management system auditors are there worldwide?

RevenueBase identified 5,247 company matches for quality management system auditors 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?

SGS tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most quality management system auditors?

India leads with 391 companies, followed by the United States (383) and Brazil (325). Every quality management system auditors list by country and city is linked on this page.

Which city has the most quality management system auditors?

Sao Paulo leads with 57 company records, followed by Istanbul (54) and Lima (52).

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 68,797 professional contacts with verified work emails tracked across these 5,247 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.