Company lists · Data refreshed September 2026

Top 25 Tax service providers based in Switzerland

RevenueBase identified 298 company matches for tax service providers associated with Switzerland as of September 2026 and tracks 953 professional contacts across them, including 420 with verified work emails. Zurich is the largest hub.

This list covers company matches for tax service providers 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
298Companies
953Contacts tracked
420Verified emails
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The 25 largest tax service providers based in Switzerland

Ranked by team size
Top 25 of 298 company matches for tax service providers 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 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
2Exact matchZurich, SwitzerlandHQ recorded Sep 22, 202611-5022 contacts →

Exact match

“At U.S.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
3Exact matchZurich, SwitzerlandHQ recorded Sep 22, 202611-5021 contacts →

Exact match

“PrimeTax provides superior tax consulting services to corporations and individuals.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
4Exact 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
5Exact 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
6Exact matchZurich, SwitzerlandHQ recorded Sep 22, 202611-5016 contacts →

Exact match

“Sanders US Tax Services is a tax preparation, consulting and advisory firm for Americans living abroad and for anyone else looking for help when dealing with the US tax system.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
7Exact matchBasel, SwitzerlandHQ recorded Sep 22, 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 22, 2026 · View company records in RevenueBase
8Exact matchZug, SwitzerlandHQ recorded Sep 22, 202611-5013 contacts →

Exact match

“Seit 1982 vertrauen nationale und internationale Gesellschaften und Privatpersonen in den Bereichen Steuern, Rechnungswesen, Unternehmensberatung und Wirtschaftsprüfung auf aidoo.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
9Exact matchSt. Gallen, SwitzerlandHQ recorded Sep 22, 202611-5013 contacts →

Exact match

“Steuerberatung für Unternehmen und Privatpersonen I Advokatur I Treuhand I Business Software Lösungen”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
10Exact matchLausanne, SwitzerlandHQ recorded Sep 22, 202611-5011 contacts →

Exact match

“We provide accounting and payroll services and optimize your tax strategy.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
11Exact matchZürich, SwitzerlandHQ recorded Sep 22, 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 22, 2026 · View company records in RevenueBase
12Exact matchZürich, SwitzerlandHQ recorded Sep 22, 202611-5011 contacts →

Exact match

“Als alteingesessene Steuerkanzlei betreuen wir seit 1928 hauptsächlich inländische Privatpersonen, Familien und Unternehmen.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
13Exact matchZug, SwitzerlandHQ recorded Sep 22, 20261-1011 contacts →

Exact match

“Our promise to you: a bespoke service from a team of certified tax experts dedicated to resolving all your tax issues and questions.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
14Exact matchPully, SwitzerlandHQ recorded Sep 22, 202611-5011 contacts →

Exact match

“Les voies vers une situation financière sereine sont parsemées de défis complexes et d’opportunités à saisir.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
15Exact matchChur, SwitzerlandHQ recorded Sep 22, 202611-5010 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
16Exact matchSt. Gallen, SwitzerlandHQ recorded Sep 22, 20261-1010 contacts →

Exact match

“avacor ag in St.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
17Exact matchOlten, SwitzerlandHQ recorded Sep 22, 20261-109 contacts →

Exact match

“Ziele auf den Punkt gebracht.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
18Exact matchArlesheim, SwitzerlandHQ recorded Sep 22, 20261-108 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
19Exact matchCointrin, SwitzerlandHQ recorded Sep 22, 20261-108 contacts →

Exact match

“FidOlea SA, fondée en 2013, propose des prestations de conseils, de comptabilité et de fiscalité à une clientèle de sociétés et personnes physiques, ainsi qu’à des associations et…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
20Exact matchBern, SwitzerlandHQ recorded Sep 22, 202611-507 contacts →

Exact match

“Accounting/Audit/Tax Advice/Management Consultancy”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
21Exact matchFribourg, SwitzerlandHQ recorded Sep 22, 202611-507 contacts →

Exact match

“Comptabilité | Révision | Fiscalité | Administration | Conseils | Salaires | Création d'entreprise”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
22Exact matchZurich, SwitzerlandHQ recorded Sep 22, 202611-507 contacts →

Exact match

“Steuerberatung / Pensionsplanung / Vermögensverwaltung Wir bieten Ihnen eine seriöse Finanzplanung.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
23Exact matchFreienbach, SwitzerlandHQ recorded Sep 22, 202611-507 contacts →

Exact match

“STR Treuhand unterstützt Kunden in den Bereichen Startup-Unterstützung, Unternehmensberatung, Treuhand, Steuerberatung und Wirtschaftsprüfung.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
24Exact matchStadtkreis 2, SwitzerlandHQ recorded Sep 22, 20261-107 contacts →

Exact match

“Steuerberatung / Treuhand / Unternehmensberatung / Wirtschaftsprüfung”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
25Exact matchZug, SwitzerlandHQ recorded Sep 22, 20261-107 contacts →

Exact match

“Tax Consultancy We consult and guide companies sector-independent in national and international corporate tax law (corporate profit tax, tax on capital, withholding tax, stamp…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase

Showing 25 of 298 tax service providers based in Switzerland

See the full list, filter by size, metro and specialty, and access 420 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Tax service providers based in Switzerland at a glance

As of Sep 22, 2026
44.1%Verified-email coverage
3.2Average contacts per company
1-10Median size (employees)
12.4%Largest-city concentration · Zurich
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
246
11-50
44
51-200
2
10001+
1

Email recency for this list is measured worldwide rather than for Switzerland, so it is reported there. Company counts and contact totals on this page are exact for Switzerland, over 298 companies.

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 “tax service providers” 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 420 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.

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 “tax service providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many tax service providers are there based in Switzerland?

RevenueBase identified 298 company matches for tax service providers 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?

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

Which city has the most tax service providers?

Zurich leads with 37 company records, followed by Lausanne (14) and Geneva (13).

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 420 professional contacts with verified work emails tracked across these 298 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.