Company lists · Data refreshed September 2026

Top 25 Tax consulting firms based in Switzerland

RevenueBase identified 395 tax consulting firms headquartered in Switzerland as of September 2026 and tracks 2,283 professional contacts across them, including 958 with verified work emails and 40 with mobile numbers. Zurich is the largest hub.

This list covers tax consulting firms 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 6, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 6, 2026 86% judged on-target in blind review
395Companies
2,283Contacts tracked
958Verified emails
40Mobile numbers
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The 25 largest tax consulting firms based in Switzerland

Ranked by team size
Top 25 of 395 tax consulting firms based in Switzerland, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to tax consulting firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceZurich, SwitzerlandHQ checked Sep 6, 2026201-500175 contacts →

“VISCHER is a leading Swiss law firm offering integrated legal and tax expertise.”

Source: company website · checked Sep 6, 2026
2Indirect evidenceZug, SwitzerlandHQ checked Sep 6, 2026201-500171 contacts →

“KENDRIS is an international advisory and fiduciary services firm for wealthy individuals, family offices, corporations and institutional clients.”

Source: company website · checked Sep 6, 2026
3Indirect evidenceZurich, SwitzerlandHQ checked Sep 6, 202651-200120 contacts →

“A reliable partner in legal and taxation matters is always important, both in the best-possible situation, when someone is planning an exciting new project, or in the…”

Source: company website · checked Sep 6, 2026
4Partial evidenceZurich, SwitzerlandHQ checked Sep 6, 202651-20050 contacts →

Tax Partner AG is a leading independent tax boutique based in Zurich.”

Source: company website · checked Sep 6, 2026
5Indirect evidenceLugano, SwitzerlandHQ checked Sep 6, 202651-20045 contacts →

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

Source: company website · checked Sep 6, 2026
6Indirect evidenceGenève, SwitzerlandHQ checked Sep 6, 202611-5037 contacts →

“Emblematic figure of the Geneva basin since 1943 Proud of its roots Founded under the name of Société Fiduciaire et de Gérance SA, then known as SFG Conseil SA, the company has…”

Source: company website · checked Sep 6, 2026
7Indirect evidenceMendrisio, SwitzerlandHQ checked Sep 6, 202651-20034 contacts →

“Fondato nel 1960, il Gruppo Interfida si distingue nel mercato della consulenza aziendale, fiscale e immobiliare grazie al suo impegno costante nel fornire servizi qualificati e…”

Source: company website · checked Sep 6, 2026
8Indirect evidenceBaden-dättwil, SwitzerlandHQ checked Sep 6, 202611-5026 contacts →

“Hüsser Gmür + Partner AG ist Ihr aktiver Partner für klassische Treuhanddienstleistungen, Steuerberatung und Wirtschaftsprüfung.”

Source: company website · checked Sep 6, 2026
9Partial evidenceZurich, SwitzerlandHQ checked Sep 6, 202611-5024 contacts →

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

Source: company website · checked Sep 6, 2026
10Indirect evidenceLuzern, SwitzerlandHQ checked Sep 6, 202611-5023 contacts →

“Berater & Partner is a renowned and qualified boutique firm where proven and proactive specialists provide interdisciplinary and top quality advisory services in fiduciary, legal…”

Source: company website · checked Sep 6, 2026
11Indirect evidenceZurich, SwitzerlandHQ checked Sep 6, 202611-5022 contacts →

“At U.S.”

Source: company website · checked Sep 6, 2026
12Indirect evidenceBasel, SwitzerlandHQ checked Sep 6, 202611-5022 contacts →

“We are an experienced team of specialised and independent lawyers with international and multi-jurisdictional experience.”

Source: company website · checked Sep 6, 2026
13Strong evidenceZurich, SwitzerlandHQ checked Sep 6, 202611-5021 contacts →

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

Source: company website · checked Sep 6, 2026
14Indirect evidenceCham, SwitzerlandHQ checked Sep 6, 202611-5021 contacts →

“Highly qualified for tailor-made service”

Source: company website · checked Sep 6, 2026
15Partial evidenceStadtkreis 8 Riesbach, SwitzerlandHQ checked Sep 6, 202611-5020 contacts →

“We have been acknowledged as an independent, flexible and trustworthy consulting firm since 1946.”

Source: company website · checked Sep 6, 2026
16Indirect evidenceGlattbrugg, SwitzerlandHQ checked Sep 6, 202611-5019 contacts →

“MOORE Zürich AG - Treuhand- und Steuerberatung, Zürich-Glattbrugg Fachberatung und Dienstleistungen für natürliche und juristische Personen aus dem Inland und Ausland – Sie…”

Source: company website · checked Sep 6, 2026
17Indirect evidenceLugano, SwitzerlandHQ checked Sep 6, 202611-5019 contacts →

“Fidinam & Partners SA fornisce consulenza fiscale domestica e internazionale a persone fisiche e giuridiche.”

Source: company website · checked Sep 6, 2026
18Indirect evidenceZug, SwitzerlandHQ checked Sep 6, 20261-1017 contacts →

“inVersa ist ein Unternehmen, welches Dienstleistungen in den Bereichen Treuhand, Steuer- und Unternehmensberatung, Umstrukturierungen, Nachfolgeberatung, Unternehmensbewertungen…”

Source: company website · checked Sep 6, 2026
19Strong evidenceZurich, SwitzerlandHQ checked Sep 6, 202611-5016 contacts →

“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.”

Source: company website · checked Sep 6, 2026
20Indirect evidenceZurich, SwitzerlandHQ checked Sep 6, 202611-5016 contacts →

“PKF Zurich, Switzerland “PKF” is the brand under which tens of thousands of dedicated professionals in independent firms in 150 countries collaborate closely to provide fiduciary…”

Source: company website · checked Sep 6, 2026
21Indirect evidenceBasel, SwitzerlandHQ checked Sep 6, 202611-5014 contacts →

“Wir entwickeln für Sie individuelle und auf Ihre Bedürfnisse angepasste Lösungen in den Bereichen Treuhand, Wirtschaftsprüfung, Steuern und Unternehmensberatung- Treuhand: Wir…”

Source: company website · checked Sep 6, 2026
22Partial evidenceGenève, SwitzerlandHQ checked Sep 6, 202611-5014 contacts →

“ADVISORY - TAX - LEGAL AUDIT - CORPORATE SERVICES Accounting & Payroll”

Source: company website · checked Sep 6, 2026
23Indirect evidenceZug, SwitzerlandHQ checked Sep 6, 202611-5013 contacts →

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

Source: company website · checked Sep 6, 2026
24Indirect evidenceSt. Gallen, SwitzerlandHQ checked Sep 6, 202611-5013 contacts →

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

Source: company website · checked Sep 6, 2026
25Indirect evidenceHochdorf, SwitzerlandHQ checked Sep 6, 202611-5012 contacts →

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

Source: company website · checked Sep 6, 2026

Showing 25 of 395 tax consulting firms based in Switzerland

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Tax consulting firms based in Switzerland at a glance

As of Sep 6, 2026
42.0%Verified-email coverage
1.8%Mobile-number coverage
5.8Average contacts per company
1-10Median size (employees)
16.5%Largest-city concentration · Zurich
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
290
11-50
88
51-200
6
201-500
2
10001+
1

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

How 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 tax consulting firms, 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 “tax consulting firms”. 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 tax consulting firms), 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 tax consulting firms, 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, 958 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 6, 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.

Tax consulting firms by metro

  • Tax consulting firms in Zurich65

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 tax consulting firms, 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 tax consulting firms are there based in Switzerland?

RevenueBase identified 395 tax consulting firms 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?

Vischer, headquartered in Zurich, tops this list with the largest team on record.

Which city has the most tax consulting firms?

Zurich leads with 65 headquartered companies, followed by Lugano (24) and Geneve (17).

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 958 verified decision-maker contacts tracked across these 395 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 6, 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.