Company lists · Data refreshed September 2026

Top 25 Tax preparation companies for law firms based in Switzerland

RevenueBase identified 100 company matches for tax preparation companies for law firms associated with Switzerland as of September 2026 and tracks 401 professional contacts across them, including 175 with verified work emails. Zurich is the largest hub.

This list covers company matches for tax preparation companies for law 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 29, 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 29, 2026 How this list was built
100Companies
401Contacts tracked
175Verified emails
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The 25 largest tax preparation companies for law firms based in Switzerland

Ranked by team size
Top 25 of 100 company matches for tax preparation companies for law firms based in Switzerland, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 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 matchZurich, SwitzerlandHQ recorded Sep 29, 202611-5024 contacts →

Exact match

“ADB Altorfer Duss & Beilstein is one of the leading tax law firms in Switzerland.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2Exact matchZurich, SwitzerlandHQ recorded Sep 29, 202611-5022 contacts →

Exact match

“At U.S.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3Exact matchZurich, SwitzerlandHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
4Exact matchSt. Gallen, SwitzerlandHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
5Exact matchHochdorf, SwitzerlandHQ recorded Sep 29, 202611-5012 contacts →

Exact match

“Wir bezeichnen uns als Zahlenakrobaten und Supertreuhänder, arbeiten akribisch von der linken zur rechten Kontoseite und weisen ein enormes Durchhaltevermögen auf, wenn es darum…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6Exact matchZürich, SwitzerlandHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
7Exact matchGeneva, SwitzerlandHQ recorded Sep 29, 202611-5011 contacts →

Exact match

“Nos experts fiscaux et avocats – expérimentés et ultra spécialisés – vous accompagnent dans toutes vos problématiques fiscales, qu’elles soient personnelles, entrepreneuriales…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8Exact matchPully, SwitzerlandHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
9Exact matchSt. Gallen, SwitzerlandHQ recorded Sep 29, 20261-1010 contacts →

Exact match

“avacor ag in St.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10Exact matchFreienbach, SwitzerlandHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
11Exact matchStadtkreis 2, SwitzerlandHQ recorded Sep 29, 20261-107 contacts →

Exact match

“Steuerberatung / Treuhand / Unternehmensberatung / Wirtschaftsprüfung”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12Exact matchZug, SwitzerlandHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
13Exact matchBurgdorf, SwitzerlandHQ recorded Sep 29, 202611-506 contacts →

Exact match

“Als Start-up, Unternehmen und Privatperson stehen Sie bei uns an erster Stelle.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14Exact matchZürich, SwitzerlandHQ recorded Sep 29, 20261-106 contacts →

Exact match

“Tarantino AG is an accounting company based out of Gartenstrasse 25, 8002 Zürich, Zurich, Switzerland.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15Exact matchBasel, SwitzerlandHQ recorded Sep 29, 20261-105 contacts →

Exact match

“Wir sind edb: Wirtschaftskanzlei, Notariat und Steuerboutique.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16Exact matchSt.gallen, SwitzerlandHQ recorded Sep 29, 20261-105 contacts →

Exact match

“Aufgrund unserer fachlichen Kompetenzen sowie dank unserer langjährigen Erfahrung erbringen wir für unsere Mandanten qualitativ hochstehende und zielgerichtete Dienstleistungen.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17Exact matchSt. Gallen, SwitzerlandHQ recorded Sep 29, 202611-505 contacts →

Exact match

“Trehag Treuhand St.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18Exact matchSankt Gallen, SwitzerlandHQ recorded Sep 29, 20261-105 contacts →

Exact match

“Wirtschaftsprüfung Unternehmensberatung Steuerberatung Rechnungswesen”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19Exact matchBern, SwitzerlandHQ recorded Sep 29, 202611-505 contacts →

Exact match

“Die G+S Treuhand AG erbringt vielfältige Dienstleitungen auf dem Gebiet der Steuern sowie in angrenzenden Fachgebieten.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20Exact matchGossau, SwitzerlandHQ recorded Sep 29, 202611-505 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21Exact matchHerisau, SwitzerlandHQ recorded Sep 29, 20261-105 contacts →

Exact match

“Unser neues Unternehmensleitbild – «Gemeinsam für Ihren Erfolg» – verdeutlicht unsere Mission, Ihnen erstklassige Dienstleistungen anzubieten, und gemeinsam mit Ihnen an Ihrem…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22Exact matchKreuzlingen, SwitzerlandHQ recorded Sep 29, 20261-105 contacts →

Exact match

“Unternehmensberatung, Steuerberatung, Treuhand, Buchhaltung & Administration, Wirtschaftsprüfung”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23Exact matchZurich, SwitzerlandHQ recorded Sep 29, 20261-104 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24Exact matchFrenkendorf, SwitzerlandHQ recorded Sep 29, 20261-104 contacts →

Exact match

“Buchhaltung | Steuern | Beratung Dafür stehen wir.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25Exact matchZürich, SwitzerlandHQ recorded Sep 29, 202611-504 contacts →

Exact match

“We are specialists for startup, tax, accounting, financial planning, retirement counseling, matrimonial and inheritance law, payroll administration and accounting, corporate…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase

Showing 25 of 100 tax preparation companies for law firms based in Switzerland

See the full list, filter by size, metro and specialty, and access 175 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Tax preparation companies for law firms based in Switzerland at a glance

As of Sep 29, 2026
43.6%Verified-email coverage
4.0Average contacts per company
1-10Median size (employees)
20.0%Largest-city concentration · Zurich
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
73
11-50
23
51-200
1
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 100 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 preparation companies for law 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 175 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 29, 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 preparation companies for law firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many tax preparation companies for law firms are there based in Switzerland?

RevenueBase identified 100 company matches for tax preparation companies for law 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?

ADB Altorfer Duss & Beilstein AG tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most tax preparation companies for law firms?

Zurich leads with 20 company records, followed by Geneva (8) and Zug (6).

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 175 professional contacts with verified work emails tracked across these 100 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 29, 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.