Company lists · Data refreshed November 2026

Top 25 Iso audit service providers worldwide

Name: Iso audit service providers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 7,588 companies tracked

RevenueBase identified 7,588 company matches for iso audit service providers worldwide as of November 2026 and tracks 187,016 professional contacts across them, including 44,438 with verified work emails. India is the largest market and Lima the largest hub.

This list covers company matches for iso audit service providers 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 audit service providers 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

7,588Companies

187,016Contacts tracked

44,438Verified emails

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The 25 largest iso audit service providers worldwide

Ranked by team size

Top 25 of 7,588 company matches for iso audit service providers 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	Intertek	Exact match	London, NY, United KingdomHQ recorded Nov 6, 2026	10001+	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
2	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
3	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
4	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
5	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
6	TRIGO	Exact match	Nanterre, FranceHQ recorded Nov 6, 2026	10001+	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
7	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
8	Formel D Group	Exact match	Cologne, GermanyHQ recorded Nov 6, 2026	10001+	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
9	PT Surveyor Indonesia	Exact match	Jakarta Selatan, IndonesiaHQ recorded Nov 6, 2026	5,001-10,000	2,700 contacts →
	Exact match “Surveyor Indonesia didirikan pada tanggal 1 Agustus 1991.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	MCA Auditoria E Gerenciamento Ltda	Exact match	Belo Horizonte, BrazilHQ recorded Nov 6, 2026	1,001-5,000	1,995 contacts →
	Exact match “MCA Audit and Management Ltd, which specializes in consulting, auditing and project management and construction, is a company created by professionals graduating from leading…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	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
12	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
13	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
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	Boslan Ingeniería Y Consultoría	Exact match	Bilbao, SpainHQ recorded Nov 6, 2026	501-1,000	465 contacts →
	Exact match “Boslan, now part of Accenture, is a consolidated and solvent company supported by its numerous references developed for an important portfolio of clients.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	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
21	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
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	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
24	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
25	Lenor Group	Exact match	Buenos Aires, ArgentinaHQ recorded Nov 6, 2026	201-500	313 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

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 audit service providers”. 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 7,588 iso audit service providers worldwide

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Iso audit service providers worldwide at a glance

As of Nov 6, 2026

23.8%Verified-email coverage

24.6Average contacts per company

1-10Median size (employees)

1.2%Largest-city concentration · Lima

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

4,564

11-50

2,099

51-200

554

201-500

180

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 audit service providers are linked below.
What qualifies: Company records worldwide whose business descriptions match “iso audit service providers” 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 44,438 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 audit service providers by location

42 lists · largest first

Every Iso audit service providers 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 audit service providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many iso audit service providers are there worldwide?

RevenueBase identified 7,588 company matches for iso audit service providers 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?

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

Which country has the most iso audit service providers?

India leads with 638 companies, followed by the United Kingdom (453) and the United States (433). Every iso audit service providers list by country and city is linked on this page.

Which city has the most iso audit service providers?

Lima leads with 94 company records, followed by Sao Paulo (80) and London (76).

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 44,438 professional contacts with verified work emails tracked across these 7,588 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.