Company lists · Data refreshed November 2026

Top 25 Iso audit preparation companies worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 13,009 companies tracked

RevenueBase identified 13,009 company matches for iso audit preparation companies worldwide as of November 2026 and tracks 164,112 professional contacts across them, including 29,583 with verified work emails. Brazil is the largest market and Lima the largest hub.

This list covers company matches for iso audit preparation companies 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 preparation companies 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

13,009Companies

164,112Contacts tracked

29,583Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest iso audit preparation companies worldwide

Ranked by team size

Top 25 of 13,009 company matches for iso audit preparation companies 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	Autonomo	Exact match	Córdoba, SpainHQ recorded Nov 6, 2026	n/a	22,085 contacts →
	Exact match “Calidad y Gestión es una empresa consultora de ámbito internacional especializada en servicios de asesoría en las siguientes áreas: Calidad Medio Ambiente Responsabilidad social…” 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	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
5	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
6	ACE	Exact match	CanadaHQ recorded Nov 6, 2026	n/a	1,989 contacts →
	Exact match “consulting firm in quality and environmental management system, quality control,quality assurance and lean manufacturing and productivity improvement.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	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
8	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
9	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
10	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
11	Endrix	Exact match	Lyon, FranceHQ recorded Nov 6, 2026	501-1,000	627 contacts →
	Exact match “Le Groupe SFC, c’est - Une équipe de 200 collaborateurs accompagnant au quotidien plus de clients - Une politique orientée qualité et satisfaction clients avec notre certification…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Intedya International Dynamic Advisors	Exact match	Cayes, HaitiHQ recorded Nov 6, 2026	201-500	605 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
13	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
14	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
15	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
16	Ecol Studio Lifeanalytics	Exact match	Lucca, ItalyHQ recorded Nov 6, 2026	201-500	375 contacts →
	Exact match “Salute, Sicurezza, Ambiente e Qualità del prodotto: sei davvero sostenibile?” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	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
18	The Citation Group	Exact match	Wilmslow, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	322 contacts →
	Exact match “The Citation Group offer unrivalled compliance and quality services to over businesses across the UK, Australia, New Zealand, and Canada.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	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
20	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
21	Rici Company	Exact match	Dammam, Saudi ArabiaHQ recorded Nov 6, 2026	501-1,000	295 contacts →
	Exact match “RICI Company Ltd.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	NQA	Exact match	Dunstable, MA, United KingdomHQ recorded Nov 6, 2026	501-1,000	289 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
23	Vaisesika	Exact match	Carlsbad, United StatesHQ recorded Nov 6, 2026	201-500	279 contacts →
	Exact match “Vaisesika Consulting is a global tech and consulting firm that helps businesses transform their digital setups and stay compliant in a straightforward way.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	SQS	Exact match	Zollikofen, SwitzerlandHQ recorded Nov 6, 2026	51-200	263 contacts →
	Exact match “The Swiss Association for Quality and Management Systems (SQS) is Switzerland's leading organisation for certification and assessment services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Dexon Technology	Exact match	Ban Chang, ThailandHQ recorded Nov 6, 2026	201-500	239 contacts →
	Exact match “Dexon is committed to the delivery of quality inspection services and continuous improvement for our customers satisfaction.” 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 preparation companies”. 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 13,009 iso audit preparation companies worldwide

See the full list, filter by size, metro and specialty, and access 29,583 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Iso audit preparation companies worldwide at a glance

As of Nov 6, 2026

18.0%Verified-email coverage

12.6Average contacts per company

1-10Median size (employees)

1.4%Largest-city concentration · Lima

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

9,149

11-50

2,982

51-200

555

201-500

150

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 preparation companies are linked below.
What qualifies: Company records worldwide whose business descriptions match “iso audit preparation companies” 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 29,583 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 preparation companies by location

63 lists · largest first

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

How many iso audit preparation companies are there worldwide?

RevenueBase identified 13,009 company matches for iso audit preparation companies 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?

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

Which country has the most iso audit preparation companies?

Brazil leads with 917 companies, followed by India (797) and Italy (758). Every iso audit preparation companies list by country and city is linked on this page.

Which city has the most iso audit preparation companies?

Lima leads with 182 company records, followed by Sao Paulo (170) and Dubai (98).

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 29,583 professional contacts with verified work emails tracked across these 13,009 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.

Ready to reach these companies? Verified emails and direct dials for all 13,009 iso audit preparation companies worldwide. Start with a free account, no credit card.

Download this list →

Related lists

Browse the directory

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.