Company lists · Data refreshed September 2026

Top 25 Accounting and outsourcing services based in Switzerland

RevenueBase identified 746 company matches for accounting and outsourcing services associated with Switzerland as of September 2026 and tracks 3,992 professional contacts across them, including 1,567 with verified work emails and 56 with mobile numbers. Zurich is the largest hub.

This list covers company matches for accounting and outsourcing services 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 22, 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 22, 2026 How this list was built
746Companies
3,992Contacts tracked
1,567Verified emails
56Mobile numbers
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The 25 largest accounting and outsourcing services based in Switzerland

Ranked by team size
Top 25 of 746 company matches for accounting and outsourcing services based in Switzerland, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 22, 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 matchSt.gallen, SwitzerlandHQ recorded Sep 22, 2026501-1,000381 contacts →

Exact match

“OBT ist eine marktprägende Anbieterin von Dienstleistungen für nationale und internationale KMU- und OEV-Kunden.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
2Exact matchBasel, SwitzerlandHQ recorded Sep 22, 2026201-500168 contacts →

Exact match

“At FRISTA we see ourselves as a company which truly cares about our clients, people, and applies the latest technology to promote a sustainable and long-term culture of innovation…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
3Exact matchLuzern, SwitzerlandHQ recorded Sep 22, 202651-200107 contacts →

Exact match

“Unternehmen erwirtschaften ihre Wertschöpfung, indem sie sich voll und ganz für ihre Kunden einsetzen.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
4Exact matchBaar, SwitzerlandHQ recorded Sep 22, 202651-20078 contacts →

Exact match

“Accounting, Audit, HR, Tax, Legal and Insurance: Our specialists take over all services along your value chain, allowing you to focus fully on your core competencies.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
5Exact matchBern, SwitzerlandHQ recorded Sep 22, 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 22, 2026 · View company records in RevenueBase
6Exact matchLugano, SwitzerlandHQ recorded Sep 22, 202651-20045 contacts →

Exact match

“fiduciariaMega SA offers entrepreneurs, companies and individuals a comprehensive range of national and international consultancy services designed to provide pragmatic…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
7Exact matchGeneva, SwitzerlandHQ recorded Sep 22, 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 22, 2026 · View company records in RevenueBase
8Exact matchLausanne, SwitzerlandHQ recorded Sep 22, 202611-5033 contacts →

Exact match

“DYN Group brings together qualified professionals to meet your business and wealth management needs.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
9Exact match6302 Zug, SwitzerlandHQ recorded Sep 22, 202611-5028 contacts →

Exact match

“Our promise since 1962.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
10Exact matchZug, SwitzerlandHQ recorded Sep 22, 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 22, 2026 · View company records in RevenueBase
11Exact matchLuzern, SwitzerlandHQ recorded Sep 22, 202611-5027 contacts →

Exact match

“Willkommen bei Ihrem Partner für Familien & Unternehmen.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
12Exact matchLiestal, SwitzerlandHQ recorded Sep 22, 202611-5027 contacts →

Exact match

“Die TRETOR AG gehört zu den führenden Treuhandunternehmen in der Nordwestschweiz.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
13Exact matchChiasso, SwitzerlandHQ recorded Sep 22, 202651-20027 contacts →

Exact match

“HTLC Network is a business consulting company providing a wide range of services such as business development, accountging, global payroll, global mobility and business brokerage.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
14Exact matchBasel, SwitzerlandHQ recorded Sep 22, 202611-5022 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
15Exact matchZürich, SwitzerlandHQ recorded Sep 22, 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 22, 2026 · View company records in RevenueBase
16Exact matchCham, SwitzerlandHQ recorded Sep 22, 202611-5021 contacts →

Exact match

“Highly qualified for tailor-made service”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
17Exact matchStadtkreis 8 Riesbach, SwitzerlandHQ recorded Sep 22, 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 22, 2026 · View company records in RevenueBase
18Exact matchOlten, SwitzerlandHQ recorded Sep 22, 202611-5020 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
19Exact matchAarau, SwitzerlandHQ recorded Sep 22, 202611-5019 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
20Exact matchMartigny, SwitzerlandHQ recorded Sep 22, 202611-5019 contacts →

Exact match

“Notre fiduciaire-conseil est l’un des leaders de la branche dans sa région (Valais / Vaud).”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
21Exact matchChêne-bourg, SwitzerlandHQ recorded Sep 22, 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 22, 2026 · View company records in RevenueBase
22Exact matchLausanne, SwitzerlandHQ recorded Sep 22, 202611-5018 contacts →

Exact match

“Notre société est spécialisée dans l’outsourcing des transactions dans les domaines de gestion comptable, gestion des ressources humaines, gestion de votre administration.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
23Exact matchSiebnen, SwitzerlandHQ recorded Sep 22, 202651-20017 contacts →

Exact match

“KMU Treuhand & Revision – für Sie da.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
24Exact matchZug, SwitzerlandHQ recorded Sep 22, 202611-5017 contacts →

Exact match

“Wir bieten Ihnen integrale Lösungen an, begleiten und unterstützen Sie bei der Gründung, Mehrwertsteuer, Buchhaltung, Lohnbuchhaltung, Steuererklärungen und weitere…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
25Exact matchLangenthal, SwitzerlandHQ recorded Sep 22, 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 22, 2026 · View company records in RevenueBase

Showing 25 of 746 accounting and outsourcing services based in Switzerland

See the full list, filter by size, metro and specialty, and access 1,567 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Accounting and outsourcing services based in Switzerland at a glance

As of Sep 22, 2026
39.3%Verified-email coverage
1.4%Mobile-number coverage
5.4Average contacts per company
1-10Median size (employees)
8.6%Largest-city concentration · Zurich
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
595
11-50
137
51-200
11
201-500
2
501-1,000
1
1,001-5,000
1
10001+
1

Freshness & accuracy

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

Email last verified

Median 24.0d

Company record updated

Median 77.0d

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 and outsourcing services” 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 1,567 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 22, 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.

Accounting and outsourcing services by metro

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 and outsourcing services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many accounting and outsourcing services are there based in Switzerland?

RevenueBase identified 746 company matches for accounting and outsourcing services 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?

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

Which city has the most accounting and outsourcing services?

Zurich leads with 64 company records, followed by Geneva (59) and Basel (23).

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 1,567 professional contacts with verified work emails tracked across these 746 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 22, 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.