Company lists · Data refreshed September 2026

Top 25 Fiduciary accounting firms based in Switzerland

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

Compiled by the RevenueBase Data Team Data refreshed Sep 2, 2026 702 companies tracked

RevenueBase identified 702 fiduciary accounting firms headquartered in Switzerland as of September 2026 and tracks 2,871 professional contacts across them, including 1,162 with verified work emails and 45 with mobile numbers. Zurich is the largest hub.

This list covers fiduciary accounting 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, how directly it supports the match, and when it was last checked. Data refreshed September 2, 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 Match evidence on every row Refreshed Sep 2, 2026 86% judged on-target in blind review

702Companies

2,871Contacts tracked

1,162Verified emails

45Mobile numbers

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The 25 largest fiduciary accounting firms based in Switzerland

Ranked by team size

Top 25 of 702 fiduciary accounting firms based in Switzerland, ranked by team size, largest first. Data refreshed Sep 2, 2026. Evidence rates how directly each company's own description names fiduciary accounting 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
1	FIDAGPartial evidence	Lausanne, Switzerland	51-200	66
	“Fiduciaire FIDAG SA, fondée en 1959, est un acteur majeur en Suisse romande avec ses 135 collaborateurs répartis dans 4 cantons.” Source: company website · checked Sep 2, 2026
2	Fineac Treuhand TAX AuditIndirect evidence	Zug, Switzerland	11-50	27
	“Unabhängig von der Grösse des Anliegens: Wir von Fineac klären mit Ihnen die genauen Bedürfnisse ab und entwickeln für Sie das beste Dienstleistungspaket – individuell und…” Source: company website · checked Sep 2, 2026
3	A&o Kreston AGIndirect evidence	Baar, Switzerland	51-200	27
	“Die a&o kreston ag ist nebst den klassischen Treuhanddienstleistungen auch auf die Wirtschaftsprüfung mit a&o kreston audit ag fokussiert.” Source: company website · checked Sep 2, 2026
4	Buchhaltungs UND Revisions AGIndirect evidence	Zug, Switzerland	11-50	26
	“Our promise since 1962.” Source: company website · checked Sep 2, 2026
5	Nofival SAPartial evidence	Sion, Switzerland	11-50	19
	“Notre fiduciaire-conseil est l’un des leaders de la branche dans sa région (Valais / Vaud).” Source: company website · checked Sep 2, 2026
6	Findea Ltd. SwitzerlandPartial evidence	Geneva, Switzerland	11-50	18
	“Findea AG – Your digital fiduciary partner for start-ups and SMEs throughout Switzerland.” Source: company website · checked Sep 2, 2026
7	RRT AG Treuhand UND RevisionIndirect evidence	Chur, Switzerland	11-50	18
	“Wir sind ein unabhängiges Bündner Unternehmen mit Tradition für Treuhand, Steuer- Prüfungs- und Immobiliendienstleistungen, gegründet 1948.” Source: company website · checked Sep 2, 2026
8	B A Treuhand AGIndirect evidence	Cham, Switzerland	11-50	16
	“Die B+A Treuhand AG ist seit 1979 Marktleaderin für Treuhanddienstleistungen und Start Up/Nachfolgeberatung von Zahnärztinnen und Zahnärzten.” Source: company website · checked Sep 2, 2026
9	Fibada Treuhand AGIndirect evidence	Schaffhausen, Switzerland	11-50	13
	“Fibada provides a wide range of professional services to both Swiss businesses and private individuals.” Source: company website · checked Sep 2, 2026
10	Ofisa SAPartial evidence	Lausanne, Switzerland	11-50	13
	“Ofisa est une société fiduciaire et de conseil forte de plus de 50 ans d'expérience.” Source: company website · checked Sep 2, 2026
11	Fiduciaire Muller Christe & Associés SAIndirect evidence	Neuchatel, Switzerland	11-50	12
	“Pour les entreprises comme pour les personnes privées, la compétence et l’expérience de Muller Christe font sa force.” Source: company website · checked Sep 2, 2026
12	Exxpert.Ch FiduciaireIndirect evidence	Geneve, Switzerland	11-50	12
	“Notre organisation et nos partenaires nous offrent la possibilité de délivrer des services avec une vision globale des enjeux financiers.” Source: company website · checked Sep 2, 2026
13	Bättig Treuhand AGIndirect evidence	Luzern, Switzerland	11-50	12
	“Ob Erbrecht, Finanzen, Unternehmensberatung, Revisionen oder Steuern: Seit über 70 Jahren sind wir von Bättig Treuhand AG der perfekte Partner für Anliegen in allen…” Source: company website · checked Sep 2, 2026
14	Stieger Treuhand AGIndirect evidence	Eschenbach Sg, Switzerland	11-50	12
	“Stieger Treuhand ist ein erfahrenes Treuhandunternehmen mit Sitz in Rapperswil-Jona.” Source: company website · checked Sep 2, 2026
15	Fidutrust Gestion ET Conseils SAPartial evidence	Fribourg, Switzerland	11-50	11
	“Fondée le 11 avril 1983 à Fribourg, la société Fidutrust Gestion et Conseils, Membre de la Chambre suisse des experts comptables, fiduciaires et fiscaux, réunit toutes les…” Source: company website · checked Sep 2, 2026
16	Lirex AGIndirect evidence	St. Gallen, Switzerland	11-50	10
	“Mit LIREX haben Sie einen Partner für sämtliche Prüfungs, Buchhaltungs, Steuer- und Treuhandangelegenheiten in Liechtenstein und der Schweiz.” Source: company website · checked Sep 2, 2026
17	Carey Partners AGPartial evidence	Zurich, Switzerland	11-50	10
	“Carey Partners is a regulated Fiduciary company with an experienced team focused on wealth planning and tailor-made structuring solutions for entrepreneurs and high net worth…” Source: company website · checked Sep 2, 2026
18	Indigo Treuhand AGIndirect evidence	Huttwil, Switzerland	11-50	9
	“Indigo Treuhand AG ist eine partnergeführte Treuhandgesellschaft mit Standorten in Langenthal und Huttwil.” Source: company website · checked Sep 2, 2026
19	Calun Consulting AGIndirect evidence	Chur, Switzerland	11-50	9
	“Als Treuhandunternehmen verstehen wir uns als ganzheitlicher Dienstleister für Ihre Fragen.” Source: company website · checked Sep 2, 2026
20	FDA Fiduciaire SAPartial evidence	Boudevilliers, Switzerland	11-50	9
	“FDA FIDUCIAIRE SA EST ACTIVE DEPUIS DE NOMBREUSES ANNÉES DANS L’ARC JURASSIEN, DANS LE DISTRICT DE LA SARINE ET SUR L’ENSEMBLE DU CANTON DE FRIBOURG.” Source: company website · checked Sep 2, 2026
21	FDZ Famille & PatrimoinePartial evidence	Lausanne, Switzerland	11-50	9
	“FDZ EN BREF La Fiduciaire Dreyfus et Zurbuchen a été fondée en 1947 à Lausanne par Georges Dreyfus, expert-comptable diplômé et précurseur dans la formation des collaborateurs qui…” Source: company website · checked Sep 2, 2026
22	Steffen Rausch Kessler AGIndirect evidence	Frauenfeld, Switzerland	11-50	9
	“Zuhören.” Source: company website · checked Sep 2, 2026
23	Themis Personal AGIndirect evidence	Rheinfelden, Switzerland	11-50	9
	“Treuhand Versicherungen Personalverleih” Source: company website · checked Sep 2, 2026
24	Utag Treuhand AGIndirect evidence	Kriens, Switzerland	11-50	9
	Source: company website · checked Sep 2, 2026
25	Herzog AG Wirtschaftsberatung UND TreuhandIndirect evidence	Kriens, Switzerland	11-50	8
	“Die Herzog AG ist eine anerkannte und qualifizierte Treuhandunternehmen, welche professionelle Dienstleistungen in den Bereichen Treuhand, Wirtschaftsberatung und -prüfung, Recht…” Source: company website · checked Sep 2, 2026

Showing 25 of 702 fiduciary accounting firms based in Switzerland

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Fiduciary accounting firms based in Switzerland at a glance

As of Sep 2, 2026

1-10Median size (employees)

ZurichLargest hub · 51 HQs

45Contacts with mobile numbers

Sep 2, 2026Data refreshed

Companies by employee count

1-10

503

11-50

161

51-200

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 fiduciary accounting 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: 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: Companies headquartered in Switzerland whose own description of what they do matches “fiduciary accounting 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 fiduciary accounting 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 an evidence 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, 1,162 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 2, 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.

Fiduciary accounting firms by metro

Fiduciary accounting firms in Zurich51
Fiduciary accounting firms in Geneve51
Fiduciary accounting firms in Lausanne26

Frequently asked

How many fiduciary accounting firms are there based in Switzerland?

RevenueBase identified 702 fiduciary accounting 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?

FIDAG, headquartered in Lausanne, tops this list with the largest team on record.

Which city has the most fiduciary accounting firms?

Zurich leads with 51 headquartered companies, followed by Geneve (51) and Lausanne (26).

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 1,162 verified decision-maker contacts tracked across these 702 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 2, 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.