Company lists · Data verified August 2026

Top 25 Estate accounting firms based in Switzerland

Name: Estate accounting firms based in Switzerland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 129 companies tracked

There are 129 estate accounting firms headquartered in Switzerland (RevenueBase, August 2026). RevenueBase tracks 444 professional contacts across them, including 150 with verified work emails and 6 with mobile numbers. Zurich is the largest hub.

This list covers estate accounting firms headquartered in 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.

129Companies

444Contacts tracked

150Verified emails

6Mobile numbers

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The 25 largest estate accounting firms based in Switzerland

Ranked by team size

Top 25 of 129 estate accounting firms based in 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	Taxalis Treuhand AG	Winterthur	11-50	17	14
2	Duttweiler Treuhand AG	Liestal	11-50	14	8
3	LEO Trust	Zurich	51-200	13	9
4	Müller & Schuhmacher AG	Winterthur	11-50	11	8
5	M. Hartmann Treuhand AG	Diepoldsau	11-50	10	5
6	Fidolea SA	Cointrin	1-10	9	5
7	Otag Treuhand	Baden	11-50	8	5
8	Conseillers Suisse SA	Basel	11-50	7	5
9	Acanta AG Treuhand UND Immobilien	Wadenswil	11-50	7	2
10	Park Treuhand AG	Schaffhausen	1-10	6	4
11	Treuhand Schwab AG	Murten	1-10	6	3
12	Treso Treuhand AG	Olten	11-50	5	4
13	Minger Treuhand AG	Berg	11-50	5	4
14	Addissa Treuhand UND Immobilien AG	Ilanz	11-50	5	4
15	Bargetzi Treuhand AG	Solothurn So	1-10	5	3
16	Businesstreuhand AG	Dubendorf	1-10	5	3
17	Bovadis Partner Treuhand AG	Schaffhausen	1-10	5	2
18	Buchhaltungs- UND Treuhand AG Altstätten SG	Altstatten Sankt Gallen	11-50	4	4
19	Filexis AG Treuhand UND Immobilien	Fislisbach	11-50	4	2
20	FIT Immobilien AG	Mels	11-50	4	1
21	Rigolet S.A	Monthey	1-10	3	3
22	Gruppo Cofis	Lugano	11-50	3	2
23	Patrick Immobilier Sàrl	Fribourg	1-10	3	2
24	Cuentax AG	Basel	1-10	3	2
25	Iten, Bühlmann & Partner AG	Wetzikon Zurich	1-10	3	2

Showing 25 of 129 estate accounting firms based in Switzerland

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Estate accounting firms based in Switzerland at a glance

As of Aug 28, 2026

1-10Median size (employees)

ZurichLargest hub · 12 HQs

6Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

Estate accounting firms by metro

Metro	Companies
Estate accounting firms in Zurich	12
Estate accounting firms in Winterthur	6
Estate accounting firms in Bern	4
Estate accounting firms in Neuchatel	3
Estate accounting firms in Zug	3
Estate accounting firms in Geneve	3
Estate accounting firms in Lausanne	3
Estate accounting firms in Schaffhausen	3

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 “estate accounting firms”, with match quality audited by blind human judging, and headquartered in 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; 0 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 estate accounting firms are there based in Switzerland?

There are 129 estate accounting firms headquartered in Switzerland as of August 2026 (RevenueBase).

What is the largest company on this list?

Taxalis Treuhand AG, headquartered in Winterthur, tops this list with the largest team on record.

Which city has the most estate accounting firms?

Zurich leads with 12 headquartered companies, followed by Winterthur (6) and Bern (4).

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 150 verified decision-maker contacts tracked across these 129 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.