Company lists · Data refreshed September 2026

Top 25 Audit and accounting firms based in Switzerland

RevenueBase identified 337 company matches for audit and accounting firms associated with Switzerland as of September 2026 and tracks 3,156 professional contacts across them, including 1,534 with verified work emails and 42 with mobile numbers. Zurich is the largest hub.

This list covers company matches for audit and accounting firms 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 28, 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 28, 2026 How this list was built
337Companies
3,156Contacts tracked
1,534Verified emails
42Mobile numbers
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The 25 largest audit and accounting firms based in Switzerland

Ranked by team size
Top 25 of 337 company matches for audit and accounting firms based in Switzerland, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchZürich, SwitzerlandHQ recorded Sep 28, 20261,001-5,0001,090 contacts →

Exact match

“BDO is one of the leading audit, accounting and consulting firms in Switzerland.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2Exact matchSchwyz, SwitzerlandHQ recorded Sep 28, 202651-20062 contacts →

Exact match

“Die Treuhand- und Revisionsgesellschaft Mattig-Suter und Partner (MSuP) wurde am 1.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3Exact matchMuri Bei Bern, SwitzerlandHQ recorded Sep 28, 202651-20060 contacts →

Exact match

“Die T+R AG ist eine bedeutende regionale Dienstleistungsunternehmung in den Bereichen der Wirtschaftsberatung, der Wirtschaftsprüfung und der Steuerberatung, die Sie bei all Ihren…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4Exact matchBern, SwitzerlandHQ recorded Sep 28, 202651-20046 contacts →

Exact match

“Für unsere Kunden generieren wir Mehrwert durch professionelle und individuelle Dienstleistungen auf der Basis von persönlichen Beziehungen in den Bereichen Treuhand…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5Exact matchGeneva, SwitzerlandHQ recorded Sep 28, 202651-20034 contacts →

Exact match

“PKF Fiduciaire SA est spécialisée dans l'audit, l'expertise comptable, le conseil fiscal, la gestion des salaires et l'administration de sociétés.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6Exact matchZürich, SwitzerlandHQ recorded Sep 28, 202651-20034 contacts →

Exact match

“Swiss legal service provider.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7Exact matchBern, SwitzerlandHQ recorded Sep 28, 202611-5030 contacts →

Exact match

“The FAOA is an institution under public law with its own legal identity.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8Exact match6302 Zug, SwitzerlandHQ recorded Sep 28, 202611-5028 contacts →

Exact match

“Our promise since 1962.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9Exact matchRomanshorn, SwitzerlandHQ recorded Sep 28, 202651-20026 contacts →

Exact match

“Provida covers the full range of auditing, consulting, tax & law and trust services.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10Exact matchBaden-dättwil, SwitzerlandHQ recorded Sep 28, 202611-5026 contacts →

Exact match

“Hüsser Gmür + Partner AG ist Ihr aktiver Partner für klassische Treuhanddienstleistungen, Steuerberatung und Wirtschaftsprüfung.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11Exact matchAarau, SwitzerlandHQ recorded Sep 28, 202611-5022 contacts →

Exact match

“Ob für Unternehmen, Gemeinden oder Private: Wir sichern Ihre wirtschaftlich erfolgreiche Entwicklung.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12Exact matchBasel, SwitzerlandHQ recorded Sep 28, 202611-5022 contacts →

Exact match

“Ganz persönlich und alles aus einer Hand: Treuhand, Steuern, Wirtschaftsprüfung und Unternehmensberatung.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13Exact matchZürich, SwitzerlandHQ recorded Sep 28, 202611-5021 contacts →

Exact match

“Als erfahrene Treuhandpartnerin mit fünf Standorten im Kanton Zürich begleiten wir Unternehmen und Privatpersonen mit persönlicher Beratung, hoher Fachkompetenz und einem klaren…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14Exact matchCham, SwitzerlandHQ recorded Sep 28, 202611-5021 contacts →

Exact match

“Highly qualified for tailor-made service”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15Exact matchStadtkreis 8 Riesbach, SwitzerlandHQ recorded Sep 28, 202611-5020 contacts →

Exact match

“We have been acknowledged as an independent, flexible and trustworthy consulting firm since 1946.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16Exact matchLausanne, SwitzerlandHQ recorded Sep 28, 202611-5020 contacts →

Exact match

“Depuis plus de 30 années, Fidexaudit accompagne ses clients dans tous les domaines de la fiduciaire.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17Exact matchAarau, SwitzerlandHQ recorded Sep 28, 202611-5019 contacts →

Exact match

“thv AG is an Accounting company located in Ziegelrain 29, Zeiningen, Switzerland.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18Exact matchChur, SwitzerlandHQ recorded Sep 28, 202611-5018 contacts →

Exact match

“Wir sind ein unabhängiges Bündner Unternehmen mit Tradition für Treuhand, Steuer- Prüfungs- und Immobiliendienstleistungen, gegründet 1948.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19Exact matchSiebnen, SwitzerlandHQ recorded Sep 28, 202651-20017 contacts →

Exact match

“KMU Treuhand & Revision – für Sie da.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20Exact matchWinterthur, SwitzerlandHQ recorded Sep 28, 202611-5017 contacts →

Exact match

“Consultive ist Ihr KMU Partner für Revision, Treuhand und Unternehmensberatung in Winterthur.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21Exact matchLangenthal, SwitzerlandHQ recorded Sep 28, 202611-5017 contacts →

Exact match

“Gfeller + Partner AG ist ein mittelständisches Dienstleistungsunternehmen, welches Wirtschaftsprüfungs, Steuer- und Beratungsdienstleistungen anbietet.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22Exact matchZug, SwitzerlandHQ recorded Sep 28, 20261-1017 contacts →

Exact match

“inVersa ist ein Unternehmen, welches Dienstleistungen in den Bereichen Treuhand, Steuer- und Unternehmensberatung, Umstrukturierungen, Nachfolgeberatung, Unternehmensbewertungen…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23Exact matchAppenzell, SwitzerlandHQ recorded Sep 28, 202611-5016 contacts →

Exact match

“Die TFP Treuhand AG kann dank einem breit abgestützten Fachwissen eine entsprechend ausgedehnte Dienstleistungspalette anbieten.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24Exact matchBasel, SwitzerlandHQ recorded Sep 28, 202611-5014 contacts →

Exact match

“Wir entwickeln für Sie individuelle und auf Ihre Bedürfnisse angepasste Lösungen in den Bereichen Treuhand, Wirtschaftsprüfung, Steuern und Unternehmensberatung- Treuhand: Wir…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25Exact matchLiestal, SwitzerlandHQ recorded Sep 28, 202611-5014 contacts →

Exact match

“Die Duttweiler Treuhand AG ist Ihre Spezialistin für Buchführungen und Rechnungswesen, Ihre Expertin für Steuerberatungen, Wirtschaftsprüfungen, Unternehmensberatungen und…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

Showing 25 of 337 audit and accounting firms based in Switzerland

See the full list, filter by size, metro and specialty, and access 1,534 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Audit and accounting firms based in Switzerland at a glance

As of Sep 28, 2026
48.6%Verified-email coverage
1.3%Mobile-number coverage
9.4Average contacts per company
1-10Median size (employees)
10.1%Largest-city concentration · Zurich
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
230
11-50
89
51-200
8
201-500
2
1,001-5,000
2
10001+
1

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 31.0d

Company record updated

Median 80.0d

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 “audit and accounting firms” 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 1,534 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 28, 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 “audit and accounting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many audit and accounting firms are there based in Switzerland?

RevenueBase identified 337 company matches for audit and accounting firms 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 audit and accounting firms?

Zurich leads with 34 company records, followed by Geneva (19) and Zug (18).

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 1,534 professional contacts with verified work emails tracked across these 337 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 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 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.