Company lists · Data refreshed September 2026

Top 25 Internal audit consulting companies based in Switzerland

Name: Internal audit consulting companies based in Switzerland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 4, 2026 87 companies tracked

RevenueBase identified 87 company matches for internal audit consulting companies associated with Switzerland as of September 2026 and tracks 1,502 professional contacts across them, including 845 with verified work emails and 22 with mobile numbers. Zurich is the largest hub.

This list covers company matches for internal audit consulting companies associated with Switzerland, 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 September 4, 2026.

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 Sep 4, 2026 How this list was built

87Companies

1,502Contacts tracked

845Verified emails

22Mobile numbers

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The 25 largest internal audit consulting companies based in Switzerland

Ranked by team size

Top 25 of 87 company matches for internal audit consulting companies based in Switzerland, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 4, 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	BDO Switzerland	Exact match	Zürich, SwitzerlandHQ recorded Sep 4, 2026	1,001-5,000	1,100 contacts →
	Exact match “BDO is one of the leading audit, accounting and consulting firms in Switzerland.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
2	Treuhand- UND Revisionsgesellschaft Mattig-Suter UND Partner	Exact match	Schwyz, SwitzerlandHQ recorded Sep 4, 2026	51-200	63 contacts →
	Exact match “Die Treuhand- und Revisionsgesellschaft Mattig-Suter und Partner (MSuP) wurde am 1.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
3	Protiviti Switzerland	Exact match	Zurich, SwitzerlandHQ recorded Sep 4, 2026	n/a	21 contacts →
	Exact match “Protiviti is a global consulting firm that delivers deep expertise, objective insights, a tailored approach and unparalleled collaboration to help leaders confidently face the…” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
4	Caminada Zurich	Exact match	Zurich, SwitzerlandHQ recorded Sep 4, 2026	11-50	20 contacts →
	Exact match “We have been acknowledged as an independent, flexible and trustworthy consulting firm since 1946.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
5	KMU Treuhand & Revision	Exact match	Siebnen, SwitzerlandHQ recorded Sep 4, 2026	51-200	17 contacts →
	Exact match “KMU Treuhand & Revision – für Sie da.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
6	Ostschweizerische Treuhand Zürich AG	Exact match	Zurich, SwitzerlandHQ recorded Sep 4, 2026	11-50	10 contacts →
	Exact match “Ostschweizerische Treuhand Zürich AG, short OTG, has been in business since 1918 as an accredited audit firm conducting full and limited audits.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
7	Revixpert SA	Exact match	Auvernier, SwitzerlandHQ recorded Sep 4, 2026	1-10	10 contacts →
	Exact match “L’existence de reviXpert SA se fonde sur plusieurs décennies d’expérience acquise en matière de services intégrés au sein des « Big-4 ».” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
8	PKF Certifica SA	Exact match	Lugano, SwitzerlandHQ recorded Sep 4, 2026	11-50	10 contacts →
	Exact match “PKF Certifica SA is an auditing and corporate consultancy company that is a full member of the PKF global network, counting over 200 member firms in around 150 countries across…” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
9	Lufida Revisions AG	Exact match	Luzern, SwitzerlandHQ recorded Sep 4, 2026	1-10	9 contacts →
	Exact match “Die Lufida-Revision stellt Unternehmen aus allen Branchen ihre Dienstleistungen als unabhängiges und flexibles Wirtschaftsprüfungs- und Beratungsunternehmen zur Verfügung.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
10	Steffen Rausch Kessler AG	Exact match	Weinfelden, SwitzerlandHQ recorded Sep 4, 2026	11-50	9 contacts →
	Exact match “Zuhören.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
11	Dr. Balsiger & Partner AG	Exact match	Zofingen, SwitzerlandHQ recorded Sep 4, 2026	11-50	9 contacts →
	Exact match “We are independent auditors, tax advisors and accountants.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
12	Acons Governance & Audit AG	Exact match	Zurich, SwitzerlandHQ recorded Sep 4, 2026	1-10	9 contacts →
	Exact match “Governance - Audit - Tools, Schulungen & Workshops” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
13	Pluriaudit SA	Exact match	Lugano, SwitzerlandHQ recorded Sep 4, 2026	1-10	8 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
14	Hagmann Treuhand AG	Exact match	Bern, SwitzerlandHQ recorded Sep 4, 2026	11-50	7 contacts →
	Exact match “Accounting/Audit/Tax Advice/Management Consultancy” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
15	Atca Sàrl	Exact match	Lausanne, SwitzerlandHQ recorded Sep 4, 2026	1-10	7 contacts →
	Exact match “The mission of ATCA is to provide our clients with excellent accounting, tax, financial analysis, business consulting, internal control and audit services.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
16	HLS & Partner SA	Exact match	Vevey, SwitzerlandHQ recorded Sep 4, 2026	1-10	6 contacts →
	Exact match “HLS & Partner is an Audit and Consulting firm which offers a wide range of financial services.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
17	Asma Asset Management Audit & Compliance SA	Exact match	Geneva, SwitzerlandHQ recorded Sep 4, 2026	11-50	5 contacts →
	Exact match “ASMA Asset Management Audit & Compliance supports clients of all kinds – from the smallest financial intermediary to listed groups.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
18	2comply Sagl	Exact match	Lugano, SwitzerlandHQ recorded Sep 4, 2026	1-10	5 contacts →
	Exact match “2Comply Sagl was founded in 2020 in Switzerland as an external partner for financial institutions and other companies with the aim to provide them an expert view in risk…” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
19	Truvag Treuhand UND Revisions AG St. Gallen	Exact match	Sankt Gallen, SwitzerlandHQ recorded Sep 4, 2026	1-10	5 contacts →
	Exact match “Wirtschaftsprüfung Unternehmensberatung Steuerberatung Rechnungswesen” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
20	PEQ Gmbh	Exact match	Zunzgen, SwitzerlandHQ recorded Sep 4, 2026	1-10	3 contacts →
	Exact match “PEQ GmbH ist ein Prüfungs- und Beratungsunternehmen für im Finanzdienstleistungsbereich tätige Unternehmen.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
21	Legatax Bertschi AG	Exact match	Solothurn, SwitzerlandHQ recorded Sep 4, 2026	1-10	3 contacts →
	Exact match “Buchführung und Abschlussberatung, Steuer- und Unternehmensberatung sowie Revisionen - wir verknüpfen wo möglich unsere Dienstleistungen mit sinnvollen IT-Lösungen um…” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
22	Audit ZUG AG	Exact match	SwitzerlandHQ recorded Sep 4, 2026	1-10	3 contacts →
	Exact match “Wir behalten den Überblick für Sie und Ihr Unternehmen.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
23	Gefid Conseils SA	Exact match	Marly, SwitzerlandHQ recorded Sep 4, 2026	1-10	3 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
24	Accounting & TAX Point AG	Exact match	Freienbach, SwitzerlandHQ recorded Sep 4, 2026	1-10	3 contacts →
	Exact match “Unternehmensberatung Steuern Rechnungswesen Revisionen” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
25	Witreva Treuhand- UND Revisionsgesellschaft AG	Exact match	Wil, SwitzerlandHQ recorded Sep 4, 2026	1-10	3 contacts →
	Exact match “Dienstleistungen im klassischen Treuhandwesen gepaart mit innovativen Lösungen sind unsere Stärke.” Recorded in the RevenueBase company graph · Sep 4, 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 “internal audit consulting 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 87 internal audit consulting companies based in Switzerland

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Internal audit consulting companies based in Switzerland at a glance

As of Sep 4, 2026

56.3%Verified-email coverage

1.5%Mobile-number coverage

17.3Average contacts per company

1-10Median size (employees)

16.1%Largest-city concentration · Zurich

Sep 4, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

1,001-5,000

5,001-10,000

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

00–30

5931–60

47961–90

30190–180

6180+

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.
What qualifies: Company records associated with Switzerland whose business descriptions match “internal audit consulting 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 845 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 September 4, 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.

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 “internal audit consulting companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many internal audit consulting companies are there based in Switzerland?

RevenueBase identified 87 company matches for internal audit consulting companies associated with Switzerland as of September 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?

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

Which city has the most internal audit consulting companies?

Zurich leads with 14 company records, followed by Zug (5) and Geneva (5).

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 845 professional contacts with verified work emails tracked across these 87 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 September 4, 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.