Company lists · Data refreshed September 2026

Top 25 IT audit consultancies worldwide

RevenueBase identified 5,737 IT audit consultancies worldwide as of September 2026 and tracks 80,396 professional contacts across them, including 17,528 with verified work emails. India is the largest market and Dubai the largest hub.

This list covers IT audit consultancies 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 28, 2026. Country and city lists for IT audit consultancies 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 28, 2026 86% judged on-target in blind review
5,737Companies
80,396Contacts tracked
17,528Verified emails
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The 25 largest IT audit consultancies worldwide

Ranked by team size
Top 25 of 5,737 IT audit consultancies worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to IT audit consultancies: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceSp, BrazilHQ checked Sep 28, 20261,001-5,0001,791 contacts →

Indirect evidence

“Presidida por Raul Corrêa da Silva, a BDO RCS foi fundada em 2001 e desde então mantém participação expressiva no mercado de auditorias.”

Source: RevenueBase Database · checked Sep 28, 2026
2Indirect evidenceStockholm, SwedenHQ checked Sep 28, 20261,001-5,0001,724 contacts →

Indirect evidence

“Grant Thornton är ett ledande revisions- och rådgivningsföretag med över 1400 medarbetare som erbjuder tjänster inom revision, skatt, redovisning och specialistrådgivning.”

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceOslo, NorwayHQ checked Sep 28, 20261,001-5,0001,498 contacts →

Indirect evidence

“KPMG er mest kjent som revisorer, forretningskonsulenter og advokater, men vi er også mye mer.”

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidenceStuttgart, GermanyHQ checked Sep 28, 20261,001-5,0001,442 contacts →

Indirect evidence

“Wollen Sie jemanden, der Sie auch beim Sprung in neue Märkte und bei allen anstehenden Herausforderungen begleitet?”

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceNew Delhi, IndiaHQ checked Sep 28, 2026501-1,000957 contacts →

Indirect evidence

“S S Kothari Mehta & Company (SSKM) is chartered accountant firm established in 1953 in Kolkata and later on expanded its base to New Delhi, Chandigarh & Mumbai as well.”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceDelhi-ncr, IndiaHQ checked Sep 28, 20261,001-5,000952 contacts →

Indirect evidence

“Nangia & Co LLP stands as a preeminent one of the top leading CA firm in India with a remarkable four-decade legacy of enriching the business landscape for an extensive clientele…”

Source: RevenueBase Database · checked Sep 28, 2026
7Indirect evidenceWien, AustriaHQ checked Sep 28, 20261,001-5,000599 contacts →

Indirect evidence

“Holen Sie sich eine Datenschutzzertifizierung für Ihr Unternehmen.”

Source: RevenueBase Database · checked Sep 28, 2026
8Partial evidenceLexington, KY, United StatesHQ checked Sep 28, 2026501-1,000590 contacts →

Partial evidence

“Dean Dorton provides an integrated suite of audit, tax, business management, consulting, and technology solutions.”

Source: RevenueBase Database · checked Sep 28, 2026
9Partial evidenceMumbai, IndiaHQ checked Sep 28, 2026201-500458 contacts →

Partial evidence

“We offer Internal Audit & Risk Consulting related services.”

Source: RevenueBase Database · checked Sep 28, 2026
10Partial evidenceParis, FranceHQ checked Sep 28, 2026201-500436 contacts →

Partial evidence

“Nexia S&A, acteur de l’audit et du conseil, apporte des solutions pertinentes à ses clients dans les domaines comptables et financiers et les accompagne pour les mettre en œuvre.”

Source: RevenueBase Database · checked Sep 28, 2026
11Partial evidenceBengaluru, IndiaHQ checked Sep 28, 2026201-500433 contacts →

Partial evidence

“Wipfli India (formerly SpiderLogic) provides services on Audit, Accounting, Technology Consulting services to customers of Wipfli LLP through its development centers in Pune and…”

Source: RevenueBase Database · checked Sep 28, 2026
12Partial evidenceFairfax, VA, United StatesHQ checked Sep 28, 2026201-500411 contacts →

Partial evidence

“ControlCase is committed to bringing peace of mind to the world’s IT compliance programs through our signature partnership approach, commitment to automation, and cost-effective…”

Source: RevenueBase Database · checked Sep 28, 2026
13Indirect evidenceMumbai, IndiaHQ checked Sep 28, 2026201-500393 contacts →

Indirect evidence

“Assurance | Tax | Technology”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidenceParis, FranceHQ checked Sep 28, 2026201-500374 contacts →

Indirect evidence

“Exponens is an independent group providing public accounting expertise, consultancy and auditing, with more than 300 employees, based in 9 offices in the Ile-de-France region.”

Source: RevenueBase Database · checked Sep 28, 2026
15Partial evidenceParis, FranceHQ checked Sep 28, 2026201-500345 contacts →

Partial evidence

“Based in Paris, Lyon, Rennes, Le Havre, Toulouse, Aix en Provence, Casablanca, London and New York, BM & A is an independent and international group positioned on the audit and…”

Source: RevenueBase Database · checked Sep 28, 2026
16Partial evidenceMumbai, IndiaHQ checked Sep 28, 2026201-500343 contacts →

Partial evidence

“Chaturvedi and Shah LLP is a Mumbai-based professional services firm with over five decades of experience in audit and assurance, established in 1967.”

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceBerlin, GermanyHQ checked Sep 28, 2026501-1,000335 contacts →

Indirect evidence

“PKF Fasselt is one of Germany’s leading mid-sized auditing and consulting firms.”

Source: RevenueBase Database · checked Sep 28, 2026
18Indirect evidenceSão Paulo, BrazilHQ checked Sep 28, 2026501-1,000312 contacts →

Indirect evidence

“A oportunidade de atender a um nicho de mercado ligado ao setor privado e público, bem como o espírito empreendedor de seus fundadores, foram as razões principais que levaram à…”

Source: RevenueBase Database · checked Sep 28, 2026
19Partial evidencePune, IndiaHQ checked Sep 28, 2026201-500279 contacts →

Partial evidence

“P G BHAGWAT LLP is a Chartered Accountancy Firm that’s been in the profession for over 85 years, providing a wide range of services such as audit and assurance, direct and…”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceSao Paulo, BrazilHQ checked Sep 28, 202651-200274 contacts →

Indirect evidence

“We are CLA Brazil!”

Source: RevenueBase Database · checked Sep 28, 2026
21Indirect evidenceMilan, ItalyHQ checked Sep 28, 2026201-500268 contacts →

Indirect evidence

“Società consulenza aziendale, revisione e organizzazione contabile associata al network internazionale Nexia.”

Source: RevenueBase Database · checked Sep 28, 2026
22Partial evidenceChennai, IndiaHQ checked Sep 28, 2026201-500267 contacts →

Partial evidence

“S P R & Co is a sector agnostic full-service audit and consulting practice that endeavours to exercise original thought to deliver meaningful insights that meet and exceed client…”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidenceJoinville, United StatesHQ checked Sep 28, 2026201-500263 contacts →

Indirect evidence

“Fundada em 1973, a MARTINELLI consolidou posição como referência em auditoria e consultoria para empresas de todos os portes e segmentos do mercado nacional.”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceChennai, IndiaHQ checked Sep 28, 202651-200261 contacts →

Indirect evidence

“R.G.N.”

Source: RevenueBase Database · checked Sep 28, 2026
25Indirect evidenceHyderabad, IndiaHQ checked Sep 28, 2026201-500249 contacts →

Indirect evidence

“JSS Pro is now part of TMF Group, a leading global provider of business administration and compliance services.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 5,737 IT audit consultancies worldwide

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IT audit consultancies worldwide at a glance

As of Sep 28, 2026
21.8%Verified-email coverage
14.0Average contacts per company
1-10Median size (employees)
2.2%Largest-city concentration · Dubai
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
2,993
11-50
2,110
51-200
450
201-500
113
501-1,000
16
1,001-5,000
20
5,001-10,000
8
10001+
3

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 IT audit consultancies, 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 IT audit consultancies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “IT audit consultancies”. 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 IT audit consultancies), 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 IT audit consultancies, 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, 17,528 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 28, 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.

IT audit consultancies by location

38 lists · largest first

Every IT audit consultancies 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 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 IT audit consultancies, 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 IT audit consultancies are there worldwide?

RevenueBase identified 5,737 IT audit consultancies 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?

BDO Brazil, headquartered in Sp, tops this list with the largest team on record.

Which country has the most IT audit consultancies?

India leads with 694 companies, followed by the United States (474) and France (298). Every IT audit consultancies list by country and city is linked on this page.

Which city has the most IT audit consultancies?

Dubai leads with 129 headquartered companies, followed by Paris (87) and Sao Paulo (86).

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 17,528 verified decision-maker contacts tracked across these 5,737 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 28, 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.