Company lists · Data refreshed November 2026

Top 25 Iso certification auditors worldwide

Name: Iso certification auditors worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 5,482 companies tracked

RevenueBase identified 5,482 company matches for iso certification auditors worldwide as of November 2026 and tracks 248,682 professional contacts across them, including 68,620 with verified work emails. India is the largest market and London the largest hub.

This list covers company matches for iso certification 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 iso certification 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

5,482Companies

248,682Contacts tracked

68,620Verified emails

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The 25 largest iso certification auditors worldwide

Ranked by team size

Top 25 of 5,482 company matches for iso certification 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	SGS	Exact match	Baar, SwitzerlandHQ recorded Nov 6, 2026	10001+	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
2	Bureau Veritas	Exact match	Paris, United KingdomHQ recorded Nov 6, 2026	10001+	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
3	DNV	Exact match	Høvik, NorwayHQ recorded Nov 6, 2026	10001+	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
4	TÜV SÜD	Exact match	Munich, GermanyHQ recorded Nov 6, 2026	10001+	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
5	UL Solutions	Exact match	Northbrook, NC, United StatesHQ recorded Nov 6, 2026	10001+	13,154 contacts →
	Exact match “A global leader in applied safety science, UL Solutions (NYSE: ULS) transforms safety, security and sustainability challenges into opportunities for customers in more than 110…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	TÜV Rheinland Group	Exact match	Cologne, GermanyHQ recorded Nov 6, 2026	10001+	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
7	Element Materials Technology	Exact match	London, United KingdomHQ recorded Nov 6, 2026	5,001-10,000	4,533 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	OCA Global	Exact match	Sant Cugat Del Valles, SpainHQ recorded Nov 6, 2026	1,001-5,000	3,061 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
9	DQS	Exact match	Frankfurt, GermanyHQ recorded Nov 6, 2026	1,001-5,000	1,466 contacts →
	Exact match “DQS – Leveraging Quality, Driving Success.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Vinçotte	Exact match	Vilvoorde, BelgiumHQ recorded Nov 6, 2026	1,001-5,000	1,314 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
11	CSA Group	Exact match	Toronto, ON, CanadaHQ recorded Nov 6, 2026	1,001-5,000	1,232 contacts →
	Exact match “At CSA Group, we excel in addressing emerging, complex issues and technologies.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	AENOR	Exact match	Madrid, SpainHQ recorded Nov 6, 2026	501-1,000	1,022 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
13	Icontec	Exact match	Bogotá, ColombiaHQ recorded Nov 6, 2026	201-500	987 contacts →
	Exact match “Somos una organización con amplia cobertura internacional sin ánimo de lucro, creado en 1963, con el objetivo de responder a las necesidades de los diferentes sectores económicos…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	British Engineering Services Group	Exact match	Warrington, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	787 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
15	Kuhlmann Tecnologia & Monitoramento Agrícola	Exact match	Pinhais, BrazilHQ recorded Nov 6, 2026	501-1,000	721 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
16	Mitra SK	Exact match	Kolkata, IndiaHQ recorded Nov 6, 2026	1,001-5,000	596 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
17	Kiwa Nederland	Exact match	Rijswijk, NetherlandsHQ recorded Nov 6, 2026	501-1,000	487 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
18	UKAS	Exact match	Staines-upon-thames, United KingdomHQ recorded Nov 6, 2026	201-500	471 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
19	Pt. TÜV Nord Indonesia	Exact match	Jakarta Selatan, IndonesiaHQ recorded Nov 6, 2026	201-500	461 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
20	Cofrac	Exact match	Paris, FranceHQ recorded Nov 6, 2026	51-200	436 contacts →
	Exact match “Démarche volontaire ou réglementaire, l’accréditation consiste à évaluer et reconnaître la compétence technique ainsi que l’impartialité des organismes d’évaluation de la…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	IMQ S.P.A	Exact match	Milan, ItalyHQ recorded Nov 6, 2026	1,001-5,000	423 contacts →
	Exact match “Il Gruppo IMQ rappresenta una delle più importanti realtà italiane nel settore della valutazione della conformità (certificazione, prove, verifiche, ispezioni), presente anche nei…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Wimpey Laboratories	Exact match	Al Qouz First, United Arab EmiratesHQ recorded Nov 6, 2026	201-500	346 contacts →
	Exact match “Wimpey Laboratories is an ISO accredited Independent laboratory.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Asociación DE Normalización Y Certificación, Ance	Exact match	México, MexicoHQ recorded Nov 6, 2026	201-500	332 contacts →
	Exact match “ANCE es una asociación civil de normalización y certificación con más de 20 años de experiencia.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	TÜV Nord Nederland	Exact match	Son, NetherlandsHQ recorded Nov 6, 2026	201-500	316 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
25	EQA España	Exact match	Madrid, SpainHQ recorded Nov 6, 2026	201-500	316 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

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “iso certification auditors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 5,482 iso certification auditors worldwide

See the full list, filter by size, metro and specialty, and access 68,620 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Iso certification auditors worldwide at a glance

As of Nov 6, 2026

27.6%Verified-email coverage

45.4Average contacts per company

1-10Median size (employees)

1.1%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

2,972

11-50

1,704

51-200

480

201-500

157

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

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 iso certification auditors are linked below.
What qualifies: Company records worldwide whose business descriptions match “iso certification 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 68,620 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.

Iso certification auditors by location

35 lists · largest first

Every Iso certification 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 “iso certification auditors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many iso certification auditors are there worldwide?

RevenueBase identified 5,482 company matches for iso certification 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 iso certification auditors?

India leads with 501 companies, followed by the United Kingdom (341) and the United States (271). Every iso certification auditors list by country and city is linked on this page.

Which city has the most iso certification auditors?

London leads with 63 company records, followed by Istanbul (60) and Lima (59).

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 68,620 professional contacts with verified work emails tracked across these 5,482 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.