Company lists · Data refreshed September 2026

Top 25 Professional service firms based in Switzerland

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

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 167 companies tracked

RevenueBase identified 167 professional service firms headquartered in Switzerland as of September 2026 and tracks 1,325 professional contacts across them, including 656 with verified work emails. Zurich is the largest hub.

This list covers professional service 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 20, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 20, 2026 86% judged on-target in blind review

167Companies

1,325Contacts tracked

656Verified emails

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The 25 largest professional service firms based in Switzerland

Ranked by team size

Top 25 of 167 professional service firms based in Switzerland, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to professional service firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Balmer-Etienne AG	Indirect evidence	Luzern, SwitzerlandHQ checked Sep 20, 2026	51-200	148 contacts →
	Indirect evidence “We act for you.” Source: RevenueBase Database · checked Sep 20, 2026
2	Gewerbe-Treuhand AG	Indirect evidence	Luzern, SwitzerlandHQ checked Sep 20, 2026	51-200	107 contacts →
	Indirect evidence “Unternehmen erwirtschaften ihre Wertschöpfung, indem sie sich voll und ganz für ihre Kunden einsetzen.” Source: RevenueBase Database · checked Sep 20, 2026
3	Avanta	Indirect evidence	Baar, SwitzerlandHQ checked Sep 20, 2026	51-200	78 contacts →
	Indirect evidence “Accounting, Audit, HR, Tax, Legal and Insurance: Our specialists take over all services along your value chain, allowing you to focus fully on your core competencies.” Source: RevenueBase Database · checked Sep 20, 2026
4	Fidinam Group	Indirect evidence	Lugano, SwitzerlandHQ checked Sep 20, 2026	201-500	44 contacts →
	Indirect evidence “Fidinam started its activities in Lugano (Canton Ticino, Switzerland) in 1960, principally providing a wide range of consulting and related services for companies, entrepreneurs…” Source: RevenueBase Database · checked Sep 20, 2026
5	Echo SA	Indirect evidence	Genève, SwitzerlandHQ checked Sep 20, 2026	11-50	37 contacts →
	Indirect evidence “Emblematic figure of the Geneva basin since 1943 Proud of its roots Founded under the name of Société Fiduciaire et de Gérance SA, then known as SFG Conseil SA, the company has…” Source: RevenueBase Database · checked Sep 20, 2026
6	PKF Fiduciaire SA	Indirect evidence	Genève, SwitzerlandHQ checked Sep 20, 2026	51-200	34 contacts →
	Indirect evidence “PKF Fiduciaire SA est spécialisée dans l'audit, l'expertise comptable, le conseil fiscal, la gestion des salaires et l'administration de sociétés.” Source: RevenueBase Database · checked Sep 20, 2026
7	PWC Switzerland - Legal	Indirect evidence	Zürich, SwitzerlandHQ checked Sep 20, 2026	51-200	34 contacts →
	Indirect evidence “Swiss legal service provider.” Source: RevenueBase Database · checked Sep 20, 2026
8	Hüsser Gmür Partner AG	Indirect evidence	Baden-dättwil, SwitzerlandHQ checked Sep 20, 2026	11-50	26 contacts →
	Indirect evidence “Hüsser Gmür + Partner AG ist Ihr aktiver Partner für klassische Treuhanddienstleistungen, Steuerberatung und Wirtschaftsprüfung.” Source: RevenueBase Database · checked Sep 20, 2026
9	Awb-Gruppe	Indirect evidence	Aarau, SwitzerlandHQ checked Sep 20, 2026	11-50	22 contacts →
	Indirect evidence “Ob für Unternehmen, Gemeinden oder Private: Wir sichern Ihre wirtschaftlich erfolgreiche Entwicklung.” Source: RevenueBase Database · checked Sep 20, 2026
10	Alltax	Indirect evidence	Basel, SwitzerlandHQ checked Sep 20, 2026	11-50	22 contacts →
	Indirect evidence “Ganz persönlich und alles aus einer Hand: Treuhand, Steuern, Wirtschaftsprüfung und Unternehmensberatung.” Source: RevenueBase Database · checked Sep 20, 2026
11	Protiviti Switzerland	Indirect evidence	Zurich, SwitzerlandHQ checked Sep 20, 2026	n/a	22 contacts →
	Indirect 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: RevenueBase Database · checked Sep 20, 2026
12	Caminada Zurich	Indirect evidence	Stadtkreis 8 Riesbach, SwitzerlandHQ checked Sep 20, 2026	11-50	20 contacts →
	Indirect evidence “We have been acknowledged as an independent, flexible and trustworthy consulting firm since 1946.” Source: RevenueBase Database · checked Sep 20, 2026
13	RPC RES Publica Consulting AG	Indirect evidence	Bern, SwitzerlandHQ checked Sep 20, 2026	11-50	18 contacts →
	Indirect evidence “Managementberatung in den Bereichen Strategie & Führung, Organisation & Prozesse, Personal & Coaching, Rechtsberatung & Interessenvertretung, Finanzen & Controlling sowie…” Source: RevenueBase Database · checked Sep 20, 2026
14	M&bd Consulting	Strong evidence	Lausanne, SwitzerlandHQ checked Sep 20, 2026	11-50	18 contacts →
	Strong evidence “M & BD is a management consulting firm gathering professionals with different backgrounds who held key functions in many industries.” Source: RevenueBase Database · checked Sep 20, 2026
15	Consultive	Indirect evidence	Winterthur, SwitzerlandHQ checked Sep 20, 2026	11-50	17 contacts →
	Indirect evidence “Consultive ist Ihr KMU Partner für Revision, Treuhand und Unternehmensberatung in Winterthur.” Source: RevenueBase Database · checked Sep 20, 2026
16	Gfeller Partner AG	Indirect evidence	Langenthal, SwitzerlandHQ checked Sep 20, 2026	11-50	17 contacts →
	Indirect evidence “Gfeller + Partner AG ist ein mittelständisches Dienstleistungsunternehmen, welches Wirtschaftsprüfungs, Steuer- und Beratungsdienstleistungen anbietet.” Source: RevenueBase Database · checked Sep 20, 2026
17	Inversa Consulting AG	Indirect evidence	Zug, SwitzerlandHQ checked Sep 20, 2026	1-10	17 contacts →
	Indirect evidence “inVersa ist ein Unternehmen, welches Dienstleistungen in den Bereichen Treuhand, Steuer- und Unternehmensberatung, Umstrukturierungen, Nachfolgeberatung, Unternehmensbewertungen…” Source: RevenueBase Database · checked Sep 20, 2026
18	Sedona Group	Indirect evidence	Nyon, SwitzerlandHQ checked Sep 20, 2026	11-50	17 contacts →
	Indirect evidence “Sedona Group une entreprise de consulting offrant un accompagnement sur-mesure, vous permettant d’accéder à la bonne expertise au bon moment.” Source: RevenueBase Database · checked Sep 20, 2026
19	PKF Zurich - Switzerland	Strong evidence	Zurich, SwitzerlandHQ checked Sep 20, 2026	11-50	16 contacts →
	Strong 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 20, 2026
20	TFP Treuhand AG	Indirect evidence	Appenzell, SwitzerlandHQ checked Sep 20, 2026	11-50	16 contacts →
	Indirect evidence “Die TFP Treuhand AG kann dank einem breit abgestützten Fachwissen eine entsprechend ausgedehnte Dienstleistungspalette anbieten.” Source: RevenueBase Database · checked Sep 20, 2026
21	Schnell Treuhand AG	Indirect evidence	Stäfa, SwitzerlandHQ checked Sep 20, 2026	11-50	16 contacts →
	Indirect evidence “Rund 35 motivierte Mitarbeitende (darunter 4 Lernende) sind bereit, unseren Kundinnen und Kunden das Beste aus den Bereichen Treuhand, Steuerberatung, Wirtschaftsprüfung und…” Source: RevenueBase Database · checked Sep 20, 2026
22	Abelia Wirtschaftsprüfung UND Beratung AG	Indirect evidence	Basel, SwitzerlandHQ checked Sep 20, 2026	11-50	14 contacts →
	Indirect evidence “Wir entwickeln für Sie individuelle und auf Ihre Bedürfnisse angepasste Lösungen in den Bereichen Treuhand, Wirtschaftsprüfung, Steuern und Unternehmensberatung- Treuhand: Wir…” Source: RevenueBase Database · checked Sep 20, 2026
23	Fontanet & Associés	Indirect evidence	Genève, SwitzerlandHQ checked Sep 20, 2026	11-50	13 contacts →
	Indirect evidence “Établis depuis 1985 à Genève, nous mettons à disposition les compétences plurielles de nos collaborateurs au service de nos clients, qu’il s’agisse d’entreprises, de collectivités…” Source: RevenueBase Database · checked Sep 20, 2026
24	NFS Group SA	Indirect evidence	Lugano, SwitzerlandHQ checked Sep 20, 2026	11-50	13 contacts →
	Indirect evidence “NFS Group è una società di consulenza aziendale e strategica, che nasce dall'unione di competenze pluriennali, maturate nel campo fiscale, fiduciario e legale, per offrire un…” Source: RevenueBase Database · checked Sep 20, 2026
25	Convicta Treuhand AG	Indirect evidence	Hochdorf, SwitzerlandHQ checked Sep 20, 2026	11-50	12 contacts →
	Indirect evidence “Wir bezeichnen uns als Zahlenakrobaten und Supertreuhänder, arbeiten akribisch von der linken zur rechten Kontoseite und weisen ein enormes Durchhaltevermögen auf, wenn es darum…” Source: RevenueBase Database · checked Sep 20, 2026

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: professional service 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 professional service firms.
Partial evidence: Its own public description names part of professional service firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name professional service 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 167 professional service firms based in Switzerland

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Professional service firms based in Switzerland at a glance

As of Sep 20, 2026

49.5%Verified-email coverage

7.9Average contacts per company

1-10Median size (employees)

13.2%Largest-city concentration · Zurich

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

100

11-50

51-200

201-500

501-1,000

5,001-10,000

10001+

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 167 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 professional service 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 “professional service 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 professional service 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 professional service 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, 656 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 20, 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

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 professional service 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 professional service firms are there based in Switzerland?

RevenueBase identified 167 professional service 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?

Balmer-Etienne AG, headquartered in Luzern, tops this list with the largest team on record.

Which city has the most professional service firms?

Zurich leads with 22 headquartered companies, followed by Zug (9) and Lugano (7).

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 656 verified decision-maker contacts tracked across these 167 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 20, 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.