Company lists · Data refreshed September 2026
Top 25 Accounting firm for IT companies based in Switzerland
RevenueBase identified 641 accounting firm for IT companies headquartered in Switzerland as of September 2026 and tracks 4,135 professional contacts across them, including 1,856 with verified work emails and 57 with mobile numbers. Zurich is the largest hub.
This list covers accounting firm for IT companies headquartered in Switzerland, 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 22, 2026.
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 accounting firm for IT companies based in Switzerland
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,090 contacts → | ||||
Partial evidence “BDO is one of the leading audit, accounting and consulting firms in Switzerland.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 2 | 107 contacts → | ||||
Indirect evidence “Unternehmen erwirtschaften ihre Wertschöpfung, indem sie sich voll und ganz für ihre Kunden einsetzen.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 3 | 62 contacts → | ||||
Indirect evidence “Die Treuhand- und Revisionsgesellschaft Mattig-Suter und Partner (MSuP) wurde am 1.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 4 | 53 contacts → | ||||
Indirect evidence “Seit 75 Jahren betreut aeberli Geschäfts- und Privatkunden in den Bereichen Steuern, Buchhaltung und Revision.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 5 | 44 contacts → | ||||
Indirect evidence “Four companies with a long tradition sail under the flag of «CORE Partners Ltd»: CORE Treuhand AG, CORE Revision AG, CORE Fiduciaire Revicor SA and CORE Medical AG.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 6 | 34 contacts → | ||||
Indirect evidence “PKF Fiduciaire SA est spécialisée dans l'audit, l'expertise comptable, le conseil fiscal, la gestion des salaires et l'administration de sociétés.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 7 | 34 contacts → | ||||
Indirect evidence “Swiss legal service provider.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 8 | 28 contacts → | ||||
Indirect evidence “Our promise since 1962.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 9 | 27 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 10 | 27 contacts → | ||||
Indirect evidence “Die TRETOR AG gehört zu den führenden Treuhandunternehmen in der Nordwestschweiz.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 11 | 25 contacts → | ||||
Indirect evidence “Treuhandlösungen, die den Unterschied machen – im Herzen von Zug!” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 12 | 22 contacts → | ||||
Indirect evidence “Ganz persönlich und alles aus einer Hand: Treuhand, Steuern, Wirtschaftsprüfung und Unternehmensberatung.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 13 | 21 contacts → | ||||
Indirect evidence “Als erfahrene Treuhandpartnerin mit fünf Standorten im Kanton Zürich begleiten wir Unternehmen und Privatpersonen mit persönlicher Beratung, hoher Fachkompetenz und einem klaren…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 14 | 21 contacts → | ||||
Indirect evidence “Highly qualified for tailor-made service” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 15 | 20 contacts → | ||||
Indirect evidence “We have been acknowledged as an independent, flexible and trustworthy consulting firm since 1946.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 16 | 20 contacts → | ||||
Partial evidence “State of the art accounting + CFO Services for Startups und KMU.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 17 | 20 contacts → | ||||
Indirect evidence “Depuis plus de 30 années, Fidexaudit accompagne ses clients dans tous les domaines de la fiduciaire.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 18 | 19 contacts → | ||||
Partial evidence “thv AG is an Accounting company located in Ziegelrain 29, Zeiningen, Switzerland.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 19 | 19 contacts → | ||||
Indirect evidence “Notre fiduciaire-conseil est l’un des leaders de la branche dans sa région (Valais / Vaud).” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 20 | 18 contacts → | ||||
Indirect evidence “La technologie au service du conseil, l’humain au cœur de la performance.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 21 | 18 contacts → | ||||
Indirect evidence “Findea AG – Your digital fiduciary partner for start-ups and SMEs throughout Switzerland.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 22 | 18 contacts → | ||||
Indirect evidence “Wir sind ein unabhängiges Bündner Unternehmen mit Tradition für Treuhand, Steuer- Prüfungs- und Immobiliendienstleistungen, gegründet 1948.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 23 | 17 contacts → | ||||
Indirect evidence “KMU Treuhand & Revision – für Sie da.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 24 | 17 contacts → | ||||
Indirect evidence “Consultive ist Ihr KMU Partner für Revision, Treuhand und Unternehmensberatung in Winterthur.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 25 | 17 contacts → | ||||
Indirect evidence “Gfeller + Partner AG ist ein mittelständisches Dienstleistungsunternehmen, welches Wirtschaftsprüfungs, Steuer- und Beratungsdienstleistungen anbietet.” Source: RevenueBase Database · checked Sep 22, 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: accounting firm for IT companies. 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 accounting firm for IT companies.
- Partial evidence
- Its own public description names part of accounting firm for IT companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name accounting firm for IT companies. 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 641 accounting firm for IT companies based in Switzerland
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Accounting firm for IT companies based in Switzerland at a glance
As of Sep 22, 2026Companies by employee count
Freshness & accuracy
How recently the business emails were verified and the company information checked
Email last verified
Median 24.0dCompany record updated
Median 74.0dHow 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 accounting firm for IT companies, 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.
- What qualifies
- Companies headquartered in Switzerland whose own description of what they do matches “accounting firm for IT companies”. 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 accounting firm for IT companies), 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 accounting firm for IT companies, and records with no verified work email. Companies headquartered outside Switzerland are excluded even when they keep an office there.
- 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, 1,856 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 22, 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.
Accounting firm for IT companies by metro
- Accounting firm for IT companies in Zurich57
- Accounting firm for IT companies in Geneve32
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 accounting firm for IT companies, 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 accounting firm for IT companies are there based in Switzerland?
RevenueBase identified 641 accounting firm for IT companies headquartered in Switzerland 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?
BDO Switzerland, headquartered in Zurich, tops this list with the largest team on record.
Which city has the most accounting firm for IT companies?
Zurich leads with 57 headquartered companies, followed by Geneve (32) and Lausanne (22).
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 1,856 verified decision-maker contacts tracked across these 641 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 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 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.
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