Company lists · Data refreshed September 2026

Top 25 Accounting firms providing outsourced accounting companies based in Switzerland

RevenueBase identified 332 company matches for accounting firms providing outsourced accounting companies associated with Switzerland as of September 2026 and tracks 1,179 professional contacts across them, including 419 with verified work emails and 28 with mobile numbers. Geneva is the largest hub.

This list covers company matches for accounting firms providing outsourced accounting 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 27, 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 27, 2026 How this list was built
332Companies
1,179Contacts tracked
419Verified emails
28Mobile numbers
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest accounting firms providing outsourced accounting companies based in Switzerland

Ranked by team size
Top 25 of 332 company matches for accounting firms providing outsourced accounting companies based in Switzerland, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 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 matchGeneva, SwitzerlandHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
2Exact matchZug, SwitzerlandHQ recorded Sep 27, 202611-5027 contacts →

Exact match

“Unabhängig von der Grösse des Anliegens: Wir von Fineac klären mit Ihnen die genauen Bedürfnisse ab und entwickeln für Sie das beste Dienstleistungspaket – individuell und…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3Exact matchZürich, SwitzerlandHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
4Exact matchStadtkreis 8 Riesbach, SwitzerlandHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
5Exact matchOlten, SwitzerlandHQ recorded Sep 27, 202611-5020 contacts →

Exact match

“State of the art accounting + CFO Services for Startups und KMU.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6Exact matchAarau, SwitzerlandHQ recorded Sep 27, 202611-5019 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7Exact matchChêne-bourg, SwitzerlandHQ recorded Sep 27, 202611-5018 contacts →

Exact match

“La technologie au service du conseil, l’humain au cœur de la performance.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8Exact matchBasel, SwitzerlandHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
9Exact matchLiestal, SwitzerlandHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
10Exact matchSwitzerlandHQ recorded Sep 27, 202611-5012 contacts →

Exact match

“Fiduciaire indépendante, genevoise et familiale, active dans l'établissement et la révision des comptes, la fiscalité, les services, le conseil et la gestion, notre approche de…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11Exact matchZürich, SwitzerlandHQ recorded Sep 27, 202611-5011 contacts →

Exact match

“Lenz Treuhand AG is an accounting company based out of Seefeldstrasse 35, Zürich, Canton of Zurich, Switzerland.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12Exact matchZurich, SwitzerlandHQ recorded Sep 27, 20261-1011 contacts →

Exact match

“Als Unternehmer – sei dies in einem jungen Startup oder einem gestanden KMU – möchte man sich eigentlich vor allem dem Tagesgeschäft widmen.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13Exact matchChur, SwitzerlandHQ recorded Sep 27, 202611-5010 contacts →

Exact match

“Sie wollen sich selbstständig machen oder Ihre Nachfolge regeln?”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14Exact matchStadtkreis 2, SwitzerlandHQ recorded Sep 27, 202611-5010 contacts →

Exact match

“XELLENZ revolutioniert die Buchführung.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15Exact matchLyss, SwitzerlandHQ recorded Sep 27, 202611-5010 contacts →

Exact match

“Immer mehr Banken bieten für Kleinunternehmen und Startups integrierte webbasierte Buchhaltungs- und Auftragssoftware an.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16Exact matchZofingen, SwitzerlandHQ recorded Sep 27, 202611-509 contacts →

Exact match

“We are independent auditors, tax advisors and accountants.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17Exact matchZürich, SwitzerlandHQ recorded Sep 27, 202611-509 contacts →

Exact match

“CONTROVA AG was founded in 2004 in Zug as BCS Audit AG and renamed CONTROVA AG in 2012.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18Exact matchMorrens, SwitzerlandHQ recorded Sep 27, 202611-509 contacts →

Exact match

“Une fiduciaire à visage humain La Fiduciaire Staehli, c’est avant tout une écoute et une gamme de services personnalisés pour répondre efficacement à vos soucis administratifs.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19Exact matchLugano, SwitzerlandHQ recorded Sep 27, 202611-508 contacts →

Exact match

“Fiduciaria commerciale attiva dal 1992 nel cuore di Lugano.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20Exact matchDübendorf, SwitzerlandHQ recorded Sep 27, 202611-508 contacts →

Exact match

“Veriduna Treuhand AG is a financial services company based out of Stettbachstrasse 6, Dübendorf, Canton of Zurich, Switzerland.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21Exact matchBaar, SwitzerlandHQ recorded Sep 27, 202611-508 contacts →

Exact match

“We love numbers!”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22Exact matchArlesheim, SwitzerlandHQ recorded Sep 27, 20261-108 contacts →

Exact match

“Das Team der Birseck-Treuhand AG heisst Sie herzlich willkommen!”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23Exact matchLausanne, SwitzerlandHQ recorded Sep 27, 20261-108 contacts →

Exact match

“Gaapex is specialized in financial and accounting outsourcing services.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24Exact matchBaden, SwitzerlandHQ recorded Sep 27, 202611-508 contacts →

Exact match

“We have over fourty years experience in the fields of auditing, tax consulting, aspects of accounting services and management consultancy.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25Exact matchOlten, SwitzerlandHQ recorded Sep 27, 20261-108 contacts →

Exact match

“Unser Unternehmen bietet hoch stehende Dienstleistungen in den Bereichen Wirtschaftsprüfung, Buchführung und Abschlussberatung sowie Steuer- und Unternehmensberatung an.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase

Showing 25 of 332 accounting firms providing outsourced accounting companies based in Switzerland

See the full list, filter by size, metro and specialty, and access 419 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Accounting firms providing outsourced accounting companies based in Switzerland at a glance

As of Sep 27, 2026
35.5%Verified-email coverage
2.4%Mobile-number coverage
3.6Average contacts per company
1-10Median size (employees)
8.1%Largest-city concentration · Geneva
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
282
11-50
46
51-200
3

Freshness & accuracy

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

Email last verified

Median 30.0d

Company record updated

Median 79.0d

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 “accounting firms providing outsourced accounting 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 419 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 27, 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 “accounting firms providing outsourced accounting companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many accounting firms providing outsourced accounting companies are there based in Switzerland?

RevenueBase identified 332 company matches for accounting firms providing outsourced accounting 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?

PKF Fiduciaire SA tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most accounting firms providing outsourced accounting companies?

Geneva leads with 27 company records, followed by Zurich (26) and Lausanne (14).

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 419 professional contacts with verified work emails tracked across these 332 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 27, 2026.

Ready to reach these companies? Verified emails and direct dials for all 332 accounting firms providing outsourced accounting companies based in Switzerland. Start with a free account, no credit card.

Download this list →

Related lists

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.