Company lists · Data refreshed September 2026
Top 25 Fiduciary law firms based in Switzerland
RevenueBase identified 735 fiduciary law firms headquartered in Switzerland as of September 2026 and tracks 3,167 professional contacts across them, including 1,342 with verified work emails. Zurich is the largest hub.
This list covers fiduciary law 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 28, 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.
The 25 largest fiduciary law firms based in Switzerland
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 66 contacts → | ||||
Partial evidence “Fiduciaire FIDAG SA, fondée en 1959, est un acteur majeur en Suisse romande avec ses 135 collaborateurs répartis dans 4 cantons.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 60 contacts → | ||||
Partial evidence “We are an independent multi-disciplinary wealth management services firm, true fiduciary with a clear goal of providing our clients with a full array of solutions.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 42 contacts → | ||||
Indirect evidence “Rhone Trust is a leading international group whose mission is to be integral to the protection and succession of family wealth through a personalized service and long-term client…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 32 contacts → | ||||
Indirect evidence “As one of the largest independent wealth managers in Switzerland, we have stood for more than 20 years for continuity among Zurich’s financial community and are firmly positioned…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 29 contacts → | ||||
Indirect evidence “Seit 1961 hat die REALIT TREUHAND AG ihr Dienstleistungsangebot in den Bereichen Immobilien und Treuhand laufend ausgebaut und den Marktbedürfnissen angepasst.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 27 contacts → | ||||
Indirect evidence “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: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 27 contacts → | ||||
Indirect evidence “Die TRETOR AG gehört zu den führenden Treuhandunternehmen in der Nordwestschweiz.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 26 contacts → | ||||
Indirect evidence “Die a&o kreston ag ist nebst den klassischen Treuhanddienstleistungen auch auf die Wirtschaftsprüfung mit a&o kreston audit ag fokussiert.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 23 contacts → | ||||
Partial evidence “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: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 22 contacts → | ||||
Indirect evidence “Professionnels reconnus aux compétences larges, nos services sont dits efficaces.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 21 contacts → | ||||
Indirect evidence “BCDT, créée en 2001, a pour vocation d’offrir un service global et hautement personnalisé à une clientèle fidèle et de qualité, institutionnelle et privée.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 20 contacts → | ||||
Partial evidence “As a modern fiduciary company with experience, we provide you with timely services of the highest quality.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 20 contacts → | ||||
Partial evidence “Depuis plus de 30 années, Fidexaudit accompagne ses clients dans tous les domaines de la fiduciaire.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 19 contacts → | ||||
Partial evidence “Notre fiduciaire-conseil est l’un des leaders de la branche dans sa région (Valais / Vaud).” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 19 contacts → | ||||
Indirect evidence “40 ans d'expérience à votre service, devenez l'auteur de votre réussite, avec nous à vos côtés" Nous sommes fiers de mettre à votre disposition notre expertise.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 18 contacts → | ||||
Indirect evidence “Persönlich für Sie da * 1989 gegründet und durch Eigentümer geführt.* Rund 30 Mitarbeiter aus verschiedenen Bereichen.* Umfassendes Qualitätsmanagement aufgrund bestehender…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 17 contacts → | ||||
Indirect evidence “Lenhill is independent boutique trust company located in Geneva, Switzerland, which brings together a group of highly qualified and enthusiastic trust professionals with more than…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 16 contacts → | ||||
Indirect evidence “Die B+A Treuhand AG ist seit 1979 Marktleaderin für Treuhanddienstleistungen und Start Up/Nachfolgeberatung von Zahnärztinnen und Zahnärzten.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 16 contacts → | ||||
Partial 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: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 15 contacts → | ||||
Indirect evidence “We advise and represent domestic and international clients mainly in banking and finance, corporate and tax matters.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 15 contacts → | ||||
Indirect evidence “renius treuhand ag – die persönliche Treuhand-Boutique mit umfassender Erfahrung.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 15 contacts → | ||||
Partial evidence “Active à Genève depuis 1972, Fidinam (Genève) SA fournit des services fiduciaires, du conseil juridique, patrimonial et fiscal à une clientèle suisse et internationale parmi…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 14 contacts → | ||||
Partial evidence “A global provider of independent fiduciary services to professional advisers, international corporate groups and private clients.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 14 contacts → | ||||
Partial evidence “G&P Fiduciaire SA, Genève, est active dans les principaux domaines fiduciaires que sont la comptabilité, la révision, la fiscalité et le conseil d'entreprise, G&P Fiduciaire SA…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 25 | 14 contacts → | ||||
Indirect evidence “ME Advocat Spezialisiert auf Ihre Situation ME Advocat ist eine dynamische Anwaltskanzlei mit Büros in Staad SG und Herisau AR.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: fiduciary law firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names fiduciary law firms.
- Partial evidence
- Its own public description names part of fiduciary law firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name fiduciary law firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 735 fiduciary law firms based in Switzerland
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Fiduciary law firms based in Switzerland at a glance
As of Sep 28, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for Switzerland, so it is reported there. Company counts and contact totals on this page are exact for Switzerland, over 735 companies.
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 law 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 “fiduciary law 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 fiduciary law 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 fiduciary law 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, 1,342 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 28, 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 law firms by metro
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 fiduciary law 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 fiduciary law firms are there based in Switzerland?
RevenueBase identified 735 fiduciary law 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 Martigny, tops this list with the largest team on record.
Which city has the most fiduciary law firms?
Zurich leads with 69 headquartered companies, followed by Geneve (62) and Lausanne (30).
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 1,342 verified decision-maker contacts tracked across these 735 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 28, 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.
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