Company lists · Data refreshed August 2026

Top 25 Accounting consulting firms based in Zurich, Switzerland

Name: Accounting consulting firms based in Zurich, Switzerland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Aug 30, 2026 59 companies tracked

There are 59 accounting consulting firms headquartered in Zurich, Switzerland (RevenueBase, August 2026). RevenueBase tracks 392 professional contacts across them, including 119 with verified work emails and 10 with mobile numbers. Zurich is the largest hub.

This list covers accounting consulting firms headquartered in Zurich, 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, how directly it supports the match, and when it was last checked. Data refreshed August 30, 2026.

59Companies

392Contacts tracked

119Verified emails

10Mobile numbers

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The 25 largest accounting consulting firms based in Zurich, Switzerland

Ranked by team size

Top 25 of 59 accounting consulting firms based in Zurich, Switzerland, ranked by team size, largest first. Data refreshed Aug 30, 2026. Evidence rates how directly each company's own description names accounting consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts	Verified emails
1	Treuhand- UND Revisionsgesellschaft Mattig-Suter UND PartnerIndirect evidence “Die Treuhand- und Revisionsgesellschaft Mattig-Suter und Partner (MSuP) wurde am 1.” Source: company website · checked Aug 30, 2026	Zurich, Switzerland	51-200	63	1
2	PWC Switzerland - LegalIndirect evidence “Swiss legal service provider.” Source: company website · checked Aug 30, 2026	Zurich, Switzerland	51-200	35	14
3	Protiviti SwitzerlandPartial evidence “Protiviti is a global consulting firm that delivers deep expertise, objective insights, a tailored approach and unparalleled collaboration to help leaders confidently face the…” Source: company website · checked Aug 30, 2026	Zurich, Switzerland	n/a	21	5
4	Caminada ZurichPartial evidence “We have been acknowledged as an independent, flexible and trustworthy consulting firm since 1946.” Source: company website · checked Aug 30, 2026	Zurich, Switzerland	11-50	20	13
5	PKF Zurich - SwitzerlandIndirect evidence “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 Aug 30, 2026	Zurich, Switzerland	11-50	16	11
6	Solver Advisory AGIndirect evidence “Effizient und mit kreativen Lösungen unterstützen wir Sie bei vielschichtigen Herausforderungen rund um M&A und Corporate Finance für KMU, Steuerberatung, Unternehmensbewertung…” Source: company website · checked Aug 30, 2026	Zurich, Switzerland	11-50	14	7
7	Auditrium AGIndirect evidence “Wir denken neue Wege, Geben Zahlen Sinn und Klarheit.” Source: company website · checked Aug 30, 2026	Zurich, Switzerland	11-50	12	9
8	Lenz Treuhand AGPartial evidence “Lenz Treuhand AG is an accounting company based out of Seefeldstrasse 35, Zürich, Canton of Zurich, Switzerland.” Source: company website · checked Aug 30, 2026	Zurich, Switzerland	11-50	11	8
9	Ostschweizerische Treuhand Zürich AGIndirect evidence “Ostschweizerische Treuhand Zürich AG, short OTG, has been in business since 1918 as an accredited audit firm conducting full and limited audits.” Source: company website · checked Aug 30, 2026	Zurich, Switzerland	11-50	10	8
10	Controva AGIndirect evidence “CONTROVA AG was founded in 2004 in Zug as BCS Audit AG and renamed CONTROVA AG in 2012.” Source: company website · checked Aug 30, 2026	Zurich, Switzerland	11-50	9	4
11	Michel Dünser & Partner AGIndirect evidence “Betrieb eines Treuhand- und Unternehmungsberatungsbüros, Durchführung von Wirtschaftsprüfungen und Steuerberatungen” Source: company website · checked Aug 30, 2026	Zurich, Switzerland	11-50	8	5
12	Tarantino AGPartial evidence “Tarantino AG is an accounting company based out of Gartenstrasse 25, 8002 Zürich, Zurich, Switzerland.” Source: company website · checked Aug 30, 2026	Zurich, Switzerland	1-10	7	5
13	Contaxa AGIndirect evidence “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…” Source: company website · checked Aug 30, 2026	Zurich, Switzerland	1-10	7	4
14	HLS & Partner SAPartial evidence “HLS & Partner is an Audit and Consulting firm which offers a wide range of financial services.” Source: company website · checked Aug 30, 2026	Zurich, Switzerland	1-10	6	5
15	Lenherr & Partner AGIndirect evidence “Steuerberatung / Treuhand / Unternehmensberatung / Wirtschaftsprüfung” Source: company website · checked Aug 30, 2026	Zurich, Switzerland	1-10	6	5
16	ABT Treuhandgesellschaft AGIndirect evidence “Wir sind ein auf KMU spezialisiertes Beratungsunternehmen.” Source: company website · checked Aug 30, 2026	Zurich, Switzerland	11-50	6	1
17	STT Schoch Treuhand Team AGPartial evidence “We are specialists for startup, tax, accounting, financial planning, retirement counseling, matrimonial and inheritance law, payroll administration and accounting, corporate…” Source: company website · checked Aug 30, 2026	Zurich, Switzerland	11-50	4	3
18	Zanuco Treuhand AGIndirect evidence “Wir bieten kompetente Buchhaltungs- und Steuerberatungsdienstleistungen für Privat- und Geschäftskunden von kleinen und mittelgrossen Unternehmen, Immobilieneigentümer und…” Source: company website · checked Aug 30, 2026	Zurich, Switzerland	1-10	3	1
19	Ryser Treuhand AGIndirect evidence “RYSER TREUHAND AG - Treuhand, Revisions- und Steuerrechtspraxis” Source: company website · checked Aug 30, 2026	Zurich, Switzerland	1-10	2	1
20	Contor Treuhand AGIndirect evidence Source: company website · checked Aug 30, 2026	Zurich, Switzerland	1-10	2	1
21	RIS Partner TreuhandIndirect evidence Source: company website · checked Aug 30, 2026	Zurich, Switzerland	1-10	2	1
22	Consavo Fiduciaries LTDIndirect evidence “Optimal tax advice is crucial for companies and entrepreneurs alike.” Source: company website · checked Aug 30, 2026	Zurich, Switzerland	11-50	1	1
23	Univeva TreuhandPartial evidence “We are a consulting company in Zurich.” Source: company website · checked Aug 30, 2026	Zurich, Switzerland	1-10	1	1
24	FCS Company GmbhIndirect evidence “fcs provides advisory and assurance services to corporates and acts as independent board member and sparring partner to boards and executives.” Source: company website · checked Aug 30, 2026	Zurich, Switzerland	1-10	1	1
25	Trigema AGIndirect evidence Source: company website · checked Aug 30, 2026	Zurich, Switzerland	1-10	1	1

Showing 25 of 59 accounting consulting firms based in Zurich, Switzerland

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Accounting consulting firms based in Zurich, Switzerland at a glance

As of Aug 30, 2026

1-10Median size (employees)

ZurichLargest hub · 59 HQs

10Contacts with mobile numbers

Aug 30, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

5,001-10,000

Accounting consulting firms by metro in Switzerland

Metro	Companies
Accounting consulting firms in Zurich	59
Accounting consulting firms in Geneve	28
Accounting consulting firms in Lugano	24
Accounting consulting firms in Zug	21
Accounting consulting firms in Basel	19
Accounting consulting firms in Lausanne	17
Accounting consulting firms in Geneva	13

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 accounting consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
What qualifies: Companies headquartered in Zurich, Switzerland whose own description of what they do matches “accounting consulting firms”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among accounting consulting firms, and records with no verified work email. Companies headquartered outside Zurich 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 an evidence rating so you can judge each match yourself.
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, 119 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 August 30, 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.

Frequently asked

How many accounting consulting firms are there based in Zurich, Switzerland?

There are 59 accounting consulting firms headquartered in Zurich, Switzerland as of August 2026 (RevenueBase).

What is the largest company on this list?

Treuhand- UND Revisionsgesellschaft Mattig-Suter UND Partner, headquartered in Zurich, tops this list with the largest team on record.

Which city has the most accounting consulting firms?

Zurich leads with 59 headquartered companies, followed by Geneve (28) and Lugano (24).

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 119 verified decision-maker contacts tracked across these 59 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 30, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.