Company lists · Data verified August 2026

Top 25 Accounting firms based in Zurich, Switzerland

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 65 companies tracked

There are 65 accounting firms headquartered in Zurich, Switzerland (RevenueBase, August 2026). RevenueBase tracks 461 professional contacts across them, including 168 with verified work emails and 9 with mobile numbers. Zurich is the largest hub.

This list covers accounting firms headquartered in Zurich, Switzerland, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

65Companies

461Contacts tracked

168Verified emails

9Mobile numbers

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The 25 largest accounting firms based in Zurich, Switzerland

Ranked by team size

Top 25 of 65 accounting firms based in Zurich, Switzerland, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Treuhand- UND Revisionsgesellschaft Mattig-Suter UND Partner	Zurich	51-200	63	1
2	Aeberli Treuhand AG	Zurich	11-50	52	36
3	PWC Switzerland - Legal	Zurich	51-200	35	14
4	Alpinum	Zurich	11-50	24	6
5	Caminada Zurich	Zurich	11-50	20	13
6	PKF Zurich - Switzerland	Zurich	11-50	16	11
7	MSZ Group AG ZUG	Zurich	11-50	13	8
8	Auditrium AG	Zurich	11-50	12	9
9	Lenz Treuhand AG	Zurich	11-50	11	8
10	Ostschweizerische Treuhand Zürich AG	Zurich	11-50	10	8
11	Controva AG	Zurich	11-50	9	4
12	Tarantino AG	Zurich	1-10	7	5
13	Contaxa AG	Zurich	1-10	7	4
14	Boost Consulting Gmbh	Zurich	1-10	6	5
15	Lenherr & Partner AG	Zurich	1-10	6	5
16	HLS & Partner SA	Zurich	1-10	6	5
17	STT Schoch Treuhand Team AG	Zurich	11-50	4	3
18	Marzo Treuhand AG	Zurich	1-10	4	3
19	Prüfag Wirtschaftsprüfung AG	Zurich	11-50	3	3
20	Aviena AG Digital Treuhand	Zurich	1-10	3	3
21	SME Revision AG	Zurich	1-10	3	1
22	BTO Buchführungen, Treuhand UND Organisation	Zurich	1-10	3	1
23	Zanuco Treuhand AG	Zurich	1-10	3	1
24	Accosense AG	Zurich	1-10	2	2
25	Ryser Treuhand AG	Zurich	1-10	2	1

Showing 25 of 65 accounting firms based in Zurich, Switzerland

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Accounting firms based in Zurich, Switzerland at a glance

As of Aug 28, 2026

1-10Median size (employees)

ZurichLargest hub · 65 HQs

9Contacts with mobile numbers

2Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Accounting firms by metro in Switzerland

Metro	Companies
Accounting firms in Zurich	65
Accounting firms in Geneve	51
Accounting firms in Lausanne	32
Accounting firms in Zug	27
Accounting firms in Basel	19
Accounting firms in Lugano	19
Accounting firms in Geneva	17

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “accounting firms”, with match quality audited by blind human judging, and headquartered in Zurich, Switzerland.
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: Contact records re-verify on a rolling cadence; 2 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

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

There are 65 accounting 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 firms?

Zurich leads with 65 headquartered companies, followed by Geneve (51) and Lausanne (32).

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 168 verified decision-maker contacts tracked across these 65 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 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.