Company lists · Data refreshed September 2026

Top 25 Internal audit consulting firms worldwide

Name: Internal audit consulting firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 4, 2026 9,650 companies tracked

RevenueBase identified 9,650 internal audit consulting firms worldwide as of September 2026 and tracks 210,028 professional contacts across them, including 56,688 with verified work emails and 16,437 with mobile numbers. India is the largest market and Sao Paulo the largest hub.

This list covers internal audit consulting firms 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 4, 2026. Country and city lists for internal audit consulting firms 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 4, 2026 86% judged on-target in blind review

9,650Companies

210,028Contacts tracked

56,688Verified emails

16,437Mobile numbers

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The 25 largest internal audit consulting firms worldwide

Ranked by team size

Top 25 of 9,650 internal audit consulting firms worldwide, ranked by team size, largest first. Data refreshed Sep 4, 2026. RevenueBase Smart Search rates how each company's information relates to internal audit consulting firms: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Kpmg India	Indirect evidence	Gurugram, IndiaHQ checked Sep 4, 2026	10001+	28,997 contacts →
	Indirect evidence “KPMG entities in India are established under the laws of India and are owned and managed (as the case may be) by established Indian professionals.” Source: RevenueBase Database · checked Sep 4, 2026
2	Protiviti	Partial evidence	Menlo Park, United StatesHQ checked Sep 4, 2026	5,001-10,000	8,869 contacts →
	Partial evidence “Protiviti is a global consulting firm that delivers deep expertise, objective insights, a tailored approach and unparalleled collaboration to help leaders confidently face the…” Source: RevenueBase Database · checked Sep 4, 2026
3	Kpmg France	Strong evidence	La Defense, FranceHQ checked Sep 4, 2026	10001+	5,839 contacts →
	Strong evidence “Leader de l'audit, du conseil et de l'expertise comptable, KPMG France est membre de KPMG International, réseau de cabinets indépendants exerçant dans 155 pays.” Source: RevenueBase Database · checked Sep 4, 2026
4	Eisneramper	Partial evidence	New York, United StatesHQ checked Sep 4, 2026	1,001-5,000	4,146 contacts →
	Partial evidence “EisnerAmper, one of the largest business consulting firms in the world, is comprised of EisnerAmper LLP, a licensed independent CPA firm that provides client attest services; and…” Source: RevenueBase Database · checked Sep 4, 2026
5	BDO Brazil	Indirect evidence	Sp, BrazilHQ checked Sep 4, 2026	1,001-5,000	1,779 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 4, 2026
6	Grant Thornton Sweden	Indirect evidence	Stockholm, SwedenHQ checked Sep 4, 2026	1,001-5,000	1,717 contacts →
	Indirect evidence “Grant Thornton är ett ledande revisions- och rådgivningsföretag med över 1 400 medarbetare som erbjuder tjänster inom revision, skatt, redovisning och specialistrådgivning.” Source: RevenueBase Database · checked Sep 4, 2026
7	Sikich	Partial evidence	Chicago, TN, United StatesHQ checked Sep 4, 2026	1,001-5,000	1,702 contacts →
	Partial evidence “Sikich offers the public and private sectors a diverse platform of professional services across consulting, technology, and compliance.” Source: RevenueBase Database · checked Sep 4, 2026
8	Walker Chandiok & CO LLP	Indirect evidence	New Delhi, IndiaHQ checked Sep 4, 2026	1,001-5,000	1,610 contacts →
	Indirect evidence “Established in 1935 and registered with ICAI, Walker Chandiok & Co LLP is the 4th largest firm by the number of listed companies audited.” Source: RevenueBase Database · checked Sep 4, 2026
9	Beierholm	Partial evidence	Aalborg North, DenmarkHQ checked Sep 4, 2026	1,001-5,000	1,567 contacts →
	Partial evidence “Beierholm is the preferred auditing and consulting company for small and medium-sized companies in Denmark.” Source: RevenueBase Database · checked Sep 4, 2026
10	BDO Norge	Indirect evidence	Oslo, NorwayHQ checked Sep 4, 2026	1,001-5,000	1,538 contacts →
	Indirect evidence “We see great value in having a local presence and roots, factors which enable us to work closely with our clients.” Source: RevenueBase Database · checked Sep 4, 2026
11	Kpmg Norway	Indirect evidence	Oslo, NorwayHQ checked Sep 4, 2026	1,001-5,000	1,490 contacts →
	Indirect evidence “KPMG er mest kjent som revisorer, forretningskonsulenter og advokater, men vi er også mye mer.” Source: RevenueBase Database · checked Sep 4, 2026
12	RSM Ebner Stolz	Indirect evidence	Stuttgart, GermanyHQ checked Sep 4, 2026	1,001-5,000	1,444 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 4, 2026
13	Crowe UK	Strong evidence	London, United KingdomHQ checked Sep 4, 2026	1,001-5,000	1,381 contacts →
	Strong evidence “Crowe UK is a leading audit, tax, advisory and consulting firm with a national presence to complement our international reach.” Source: RevenueBase Database · checked Sep 4, 2026
14	Kirtane & Pandit	Partial evidence	Pune, IndiaHQ checked Sep 4, 2026	1,001-5,000	1,152 contacts →
	Partial evidence “In today's complex and challenging business world, Accounting, Auditing & Consulting Firms play a significant role in managing these complexities/challenges and in turning them…” Source: RevenueBase Database · checked Sep 4, 2026
15	Manubhai & Shah LLP	Indirect evidence	Ahmedabad, IndiaHQ checked Sep 4, 2026	1,001-5,000	1,113 contacts →
	Indirect evidence “Manubhai & Shah LLP is a firm of Chartered Accountants based in Ahmedabad, Gujarat.” Source: RevenueBase Database · checked Sep 4, 2026
16	BDO Switzerland	Strong evidence	Zürich, SwitzerlandHQ checked Sep 4, 2026	1,001-5,000	1,100 contacts →
	Strong evidence “BDO is one of the leading audit, accounting and consulting firms in Switzerland.” Source: RevenueBase Database · checked Sep 4, 2026
17	SS Kothari Mehta & CO	Indirect evidence	New Delhi, IndiaHQ checked Sep 4, 2026	501-1,000	957 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 4, 2026
18	PKF Sridhar & Santhanam LLP	Indirect evidence	Chennai, IndiaHQ checked Sep 4, 2026	501-1,000	916 contacts →
	Indirect evidence “Established in 1978, PKF Sridhar & Santhanam LLP firm of Chartered Accountants, carry the legacy of vast experience and varied exposure in the industry.” Source: RevenueBase Database · checked Sep 4, 2026
19	T R Chadha & CO LLP	Indirect evidence	Gurugram, IndiaHQ checked Sep 4, 2026	1,001-5,000	851 contacts →
	Indirect evidence “Established in May 1946 by Late Mr.” Source: RevenueBase Database · checked Sep 4, 2026
20	Orcom Cabinet D'expertise Comptable, Audit ET Conseil	Indirect evidence	Orléans, FranceHQ checked Sep 4, 2026	1,001-5,000	805 contacts →
	Indirect evidence “Pour ORCOM, le conseil est un état d'esprit.” Source: RevenueBase Database · checked Sep 4, 2026
21	PKF Arsilon	Indirect evidence	Paris, FranceHQ checked Sep 4, 2026	501-1,000	774 contacts →
	Indirect evidence “Ensemble, changeons la donne.” Source: RevenueBase Database · checked Sep 4, 2026
22	Baker Tilly Germany	Strong evidence	Düsseldorf, GermanyHQ checked Sep 4, 2026	1,001-5,000	759 contacts →
	Strong evidence “With employees in 146 countries, Baker Tilly provides a broad range of innovative and individual consulting services in the areas of Audit & Advisory, Tax, Legal and Consulting…” Source: RevenueBase Database · checked Sep 4, 2026
23	Lodha & CO	Partial evidence	Mumbai, IndiaHQ checked Sep 4, 2026	201-500	641 contacts →
	Partial evidence “Lodha & Co LLP is one of the leading home grown accounting and consulting firms in India.” Source: RevenueBase Database · checked Sep 4, 2026
24	Crowe UAE	Strong evidence	Business Bay, United Arab EmiratesHQ checked Sep 4, 2026	501-1,000	625 contacts →
	Strong evidence “Crowe UAE is a leading audit, tax, advisory, and consulting firm with a strong national presence.” Source: RevenueBase Database · checked Sep 4, 2026
25	Guru & Jana	Partial evidence	Bangalore, IndiaHQ checked Sep 4, 2026	201-500	621 contacts →
	Partial evidence “Guru & Jana (GJ) a CA firm in Bangalore based on the philosophy - “Earn, we will & should, but with dignity, joy & trust”, specializes in India Entry, Audit & Assurance…” Source: RevenueBase Database · checked Sep 4, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: internal audit consulting firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names internal audit consulting firms.
Partial evidence: Its own public description names part of internal audit consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name internal audit consulting firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 9,650 internal audit consulting firms worldwide

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Internal audit consulting firms worldwide at a glance

As of Sep 4, 2026

27.0%Verified-email coverage

7.8%Mobile-number coverage

21.8Average contacts per company

11-50Median size (employees)

2.6%Largest-city concentration · Sao Paulo

Sep 4, 2026Page data refreshed

Companies by employee count

1-10

4,668

11-50

3,753

51-200

861

201-500

199

501-1,000

1,001-5,000

5,001-10,000

10001+

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 internal audit consulting firms, 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: 47 countries, largest first: India, the United States, Brazil, France, the United Arab Emirates, Germany, Spain, Türkiye, Italy, South Africa and 37 more. Country and city lists for internal audit consulting firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “internal audit consulting firms”. 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 internal audit consulting firms), 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 internal audit consulting firms, 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, 56,688 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 between September 4, 2026 and September 14, 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.

Internal audit consulting firms by location

79 lists · largest first

Every Internal audit consulting firms 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 internal audit consulting firms, 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 internal audit consulting firms are there worldwide?

RevenueBase identified 9,650 internal audit consulting firms 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?

Kpmg India, headquartered in Gurugram, tops this list with the largest team on record.

Which country has the most internal audit consulting firms?

India leads with 1,656 companies, followed by the United States (1,135) and Brazil (875). Every internal audit consulting firms list by country and city is linked on this page.

Which city has the most internal audit consulting firms?

Sao Paulo leads with 253 headquartered companies, followed by Dubai (222) and Paris (198).

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 56,688 verified decision-maker contacts tracked across these 9,650 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled from the company graph between September 4, 2026 and September 14, 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.