Company lists · Data refreshed September 2026
Top 25 Internal audit consulting services worldwide
RevenueBase identified 8,013 internal audit consulting services worldwide as of September 2026 and tracks 86,842 professional contacts across them, including 20,544 with verified work emails. Brazil is the largest market and Sao Paulo the largest hub.
This list covers internal audit consulting services 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 21, 2026. Country and city lists for internal audit consulting services 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.
The 25 largest internal audit consulting services worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 4,476 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,791 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 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,724 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 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,688 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 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 1,498 contacts → | ||||
Indirect evidence “KPMG er mest kjent som revisorer, forretningskonsulenter og advokater, men vi er også mye mer.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 1,442 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 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 749 contacts → | ||||
Indirect evidence “A PwC Magyarország közel három évtizede nyújt ügyfeleinek nemzetközi színvonalú szolgáltatást könyvvizsgálat, adótanácsadás és üzleti tanácsadás területeken.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 599 contacts → | ||||
Indirect evidence “Holen Sie sich eine Datenschutzzertifizierung für Ihr Unternehmen.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 535 contacts → | ||||
Indirect evidence “Consultant Corporate Governance and Project Management.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 458 contacts → | ||||
Strong evidence “We offer Internal Audit & Risk Consulting related services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 436 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 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 411 contacts → | ||||
Strong evidence “Member of Talal Abu-Ghazaleh Organization (TAG-Org) the largest Arab group of professional service firms in the fields of accounting; external audit; internal audit; corporate…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 345 contacts → | ||||
Strong 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 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 335 contacts → | ||||
Partial evidence “PKF Fasselt is one of Germany’s leading mid-sized auditing and consulting firms.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 331 contacts → | ||||
Strong evidence “Felix Advisory is one of the leading providers of tax & regulatory services, risk, transaction, financial & business advisory, internal audit, and corporate governance services in…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 290 contacts → | ||||
Partial evidence “TRC Corporate Consulting is a forward-thinking consulting firm focused on driving business growth through expert advisory services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 274 contacts → | ||||
Indirect evidence “We are CLA Brazil!” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 268 contacts → | ||||
Partial evidence “Società consulenza aziendale, revisione e organizzazione contabile associata al network internazionale Nexia.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 267 contacts → | ||||
Strong 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 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 263 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 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 249 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 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 239 contacts → | ||||
Indirect evidence “PKF Polska od blisko 35 lat wspiera rozwój, bezpieczeństwo i transformację przedsiębiorstw w Polsce.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 230 contacts → | ||||
Partial evidence “LCG provides consulting services, using their multidisciplinary skills in the areas of strategic and operational management, information systems, management support, business…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 223 contacts → | ||||
Indirect evidence “Les professionnels du cabinet Fizazi & Associés peuvent vous assister et vous conseiller afin de mieux faire grandir votre entreprise.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 213 contacts → | ||||
Indirect evidence “Consultores en Ciencias Económicas Consultoría en gestión de empresas e instituciones.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
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 services. 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 services.
- Partial evidence
- Its own public description names part of internal audit consulting services, 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 services. 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 8,013 internal audit consulting services worldwide
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Internal audit consulting services worldwide at a glance
As of Sep 21, 2026Companies by employee count
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 internal audit consulting services, 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 internal audit consulting services are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “internal audit consulting services”. 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 services), 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 services, 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, 20,544 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 21, 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 services by location
36 lists · largest firstEvery Internal audit consulting services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Internal audit consulting services based in Brazil713
- Internal audit consulting services based in the United States646
- Internal audit consulting services based in India588
- Internal audit consulting services based in France390
- Internal audit consulting services based in Türkiye254
- Internal audit consulting services based in Spain223
- Internal audit consulting services based in the United Arab Emirates216
- Internal audit consulting services based in Germany215
- Internal audit consulting services based in Colombia184
- Internal audit consulting services based in the United Kingdom165
- Internal audit consulting services based in Italy155
- Internal audit consulting services based in Mexico153
- Internal audit consulting services based in South Africa136
- Internal audit consulting services based in Australia118
- Internal audit consulting services based in the Netherlands101
- Internal audit consulting services based in Canada96
- Internal audit consulting services based in Chile90
- Internal audit consulting services based in Ecuador89
- Internal audit consulting services based in Argentina87
- Internal audit consulting services based in Peru86
- Internal audit consulting services based in Morocco76
- Internal audit consulting services based in Poland66
- Internal audit consulting services based in Switzerland66
- Internal audit consulting services based in Portugal61
- Internal audit consulting services based in Sweden61
- Internal audit consulting services based in Saudi Arabia47
- Internal audit consulting services based in Belgium42
- Internal audit consulting services based in Norway41
- Internal audit consulting services based in Romania34
- Internal audit consulting services based in Israel32
Cities
- Internal audit consulting services based in Sao Paulo, Brazil192
- Internal audit consulting services based in Mumbai, India59
- Internal audit consulting services based in Rio De Janeiro, Brazil43
- Internal audit consulting services based in Chennai, India42
- Internal audit consulting services based in Belo Horizonte, Brazil39
- Internal audit consulting services based in Recife, Brazil26
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 services, 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 services are there worldwide?
RevenueBase identified 8,013 internal audit consulting services 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?
Ernst & Young, headquartered in Shi, tops this list with the largest team on record.
Which country has the most internal audit consulting services?
Brazil leads with 713 companies, followed by the United States (646) and India (588). Every internal audit consulting services list by country and city is linked on this page.
Which city has the most internal audit consulting services?
Sao Paulo leads with 192 headquartered companies, followed by Dubai (131) and Paris (105).
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 20,544 verified decision-maker contacts tracked across these 8,013 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 21, 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.