Company lists · Data refreshed September 2026

Top 25 Consulting services in accounting firms based in Switzerland

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

Compiled by the RevenueBase Data Team Data refreshed Sep 24, 2026 710 companies tracked

RevenueBase identified 710 consulting services in accounting firms headquartered in Switzerland as of September 2026 and tracks 4,507 professional contacts across them, including 2,215 with verified work emails and 68 with mobile numbers. Zurich is the largest hub.

This list covers consulting services in 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 24, 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 24, 2026 86% judged on-target in blind review

710Companies

4,507Contacts tracked

2,215Verified emails

68Mobile numbers

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The 25 largest consulting services in accounting firms based in Switzerland

Ranked by team size

Top 25 of 710 consulting services in accounting firms based in Switzerland, ranked by team size, largest first. Data refreshed Sep 24, 2026. RevenueBase Smart Search rates how each company's information relates to consulting services in accounting 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	BDO Switzerland	Strong evidence	Zürich, SwitzerlandHQ checked Sep 24, 2026	1,001-5,000	1,090 contacts →
	Strong evidence “BDO is one of the leading audit, accounting and consulting firms in Switzerland.” Source: RevenueBase Database · checked Sep 24, 2026
2	Balmer-Etienne AG	Indirect evidence	Luzern, SwitzerlandHQ checked Sep 24, 2026	51-200	148 contacts →
	Indirect evidence “We act for you.” Source: RevenueBase Database · checked Sep 24, 2026
3	Gewerbe-Treuhand AG	Indirect evidence	Luzern, SwitzerlandHQ checked Sep 24, 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 24, 2026
4	Avanta	Partial evidence	Baar, SwitzerlandHQ checked Sep 24, 2026	51-200	78 contacts →
	Partial 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 24, 2026
5	T R AG	Indirect evidence	Muri Bei Bern, SwitzerlandHQ checked Sep 24, 2026	51-200	60 contacts →
	Indirect evidence “Die T+R AG ist eine bedeutende regionale Dienstleistungsunternehmung in den Bereichen der Wirtschaftsberatung, der Wirtschaftsprüfung und der Steuerberatung, die Sie bei all Ihren…” Source: RevenueBase Database · checked Sep 24, 2026
6	Fiduciaria Mega SA	Indirect evidence	Lugano, SwitzerlandHQ checked Sep 24, 2026	51-200	45 contacts →
	Indirect evidence “fiduciariaMega SA offers entrepreneurs, companies and individuals a comprehensive range of national and international consultancy services designed to provide pragmatic…” Source: RevenueBase Database · checked Sep 24, 2026
7	Fidinam Group	Partial evidence	Lugano, SwitzerlandHQ checked Sep 24, 2026	201-500	44 contacts →
	Partial 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 24, 2026
8	Core Partners LTD	Indirect evidence	Düdingen, SwitzerlandHQ checked Sep 24, 2026	51-200	44 contacts →
	Indirect evidence “Four companies with a long tradition sail under the flag of «CORE Partners Ltd»: CORE Treuhand AG, CORE Revision AG, CORE Fiduciaire Revicor SA and CORE Medical AG.” Source: RevenueBase Database · checked Sep 24, 2026
9	Echo SA	Indirect evidence	Genève, SwitzerlandHQ checked Sep 24, 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 24, 2026
10	PKF Fiduciaire SA	Indirect evidence	Genève, SwitzerlandHQ checked Sep 24, 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 24, 2026
11	Gruppo Interfida	Indirect evidence	Mendrisio, SwitzerlandHQ checked Sep 24, 2026	51-200	34 contacts →
	Indirect evidence “Fondato nel 1960, il Gruppo Interfida si distingue nel mercato della consulenza aziendale, fiscale e immobiliare grazie al suo impegno costante nel fornire servizi qualificati e…” Source: RevenueBase Database · checked Sep 24, 2026
12	PWC Switzerland - Legal	Indirect evidence	Zürich, SwitzerlandHQ checked Sep 24, 2026	51-200	34 contacts →
	Indirect evidence “Swiss legal service provider.” Source: RevenueBase Database · checked Sep 24, 2026
13	DYN Group	Indirect evidence	Lausanne, SwitzerlandHQ checked Sep 24, 2026	11-50	33 contacts →
	Indirect evidence “DYN Group brings together qualified professionals to meet your business and wealth management needs.” Source: RevenueBase Database · checked Sep 24, 2026
14	Buchhaltungs UND Revisions AG	Indirect evidence	6302 Zug, SwitzerlandHQ checked Sep 24, 2026	11-50	28 contacts →
	Indirect evidence “Our promise since 1962.” Source: RevenueBase Database · checked Sep 24, 2026
15	Fineac Treuhand TAX Audit	Indirect evidence	Zug, SwitzerlandHQ checked Sep 24, 2026	11-50	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 24, 2026
16	Opes AG	Indirect evidence	Luzern, SwitzerlandHQ checked Sep 24, 2026	11-50	27 contacts →
	Indirect evidence “Willkommen bei Ihrem Partner für Familien & Unternehmen.” Source: RevenueBase Database · checked Sep 24, 2026
17	Tretor AG	Indirect evidence	Liestal, SwitzerlandHQ checked Sep 24, 2026	11-50	27 contacts →
	Indirect evidence “Die TRETOR AG gehört zu den führenden Treuhandunternehmen in der Nordwestschweiz.” Source: RevenueBase Database · checked Sep 24, 2026
18	Hüsser Gmür Partner AG	Indirect evidence	Baden-dättwil, SwitzerlandHQ checked Sep 24, 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 24, 2026
19	Wadsack	Indirect evidence	Zug, SwitzerlandHQ checked Sep 24, 2026	11-50	25 contacts →
	Indirect evidence “Treuhandlösungen, die den Unterschied machen – im Herzen von Zug!” Source: RevenueBase Database · checked Sep 24, 2026
20	Awb-Gruppe	Indirect evidence	Aarau, SwitzerlandHQ checked Sep 24, 2026	11-50	22 contacts →
	Indirect evidence “Ob für Unternehmen, Gemeinden oder Private: Wir sichern Ihre wirtschaftlich erfolgreiche Entwicklung.” Source: RevenueBase Database · checked Sep 24, 2026
21	Alltax	Indirect evidence	Basel, SwitzerlandHQ checked Sep 24, 2026	11-50	22 contacts →
	Indirect evidence “Ganz persönlich und alles aus einer Hand: Treuhand, Steuern, Wirtschaftsprüfung und Unternehmensberatung.” Source: RevenueBase Database · checked Sep 24, 2026
22	Protiviti Switzerland	Partial evidence	Zurich, SwitzerlandHQ checked Sep 24, 2026	n/a	22 contacts →
	Partial 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 24, 2026
23	Primetax AG	Partial evidence	Zurich, SwitzerlandHQ checked Sep 24, 2026	11-50	21 contacts →
	Partial evidence “PrimeTax provides superior tax consulting services to corporations and individuals.” Source: RevenueBase Database · checked Sep 24, 2026
24	Expertinum AG	Indirect evidence	Zürich, SwitzerlandHQ checked Sep 24, 2026	11-50	21 contacts →
	Indirect evidence “Als erfahrene Treuhandpartnerin mit fünf Standorten im Kanton Zürich begleiten wir Unternehmen und Privatpersonen mit persönlicher Beratung, hoher Fachkompetenz und einem klaren…” Source: RevenueBase Database · checked Sep 24, 2026
25	Value Solutions AG	Indirect evidence	Cham, SwitzerlandHQ checked Sep 24, 2026	11-50	21 contacts →
	Indirect evidence “Highly qualified for tailor-made service” Source: RevenueBase Database · checked Sep 24, 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: consulting services in accounting 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 consulting services in accounting firms.
Partial evidence: Its own public description names part of consulting services in accounting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name consulting services in accounting 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 710 consulting services in accounting firms based in Switzerland

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Consulting services in accounting firms based in Switzerland at a glance

As of Sep 24, 2026

49.1%Verified-email coverage

1.5%Mobile-number coverage

6.3Average contacts per company

1-10Median size (employees)

9.0%Largest-city concentration · Zurich

Sep 24, 2026Page data refreshed

Companies by employee count

1-10

529

11-50

151

51-200

201-500

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 26.0d

1,6390–30

51531–60

5261–90

090–180

9180+

Company record updated

Median 76.0d

00–30

45931–60

2,71461–90

1,08090–180

254180+

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 consulting services in accounting 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 “consulting services in accounting 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 consulting services in accounting 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 consulting services in 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 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, 2,215 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 24, 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.

Consulting services in accounting 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 consulting services in accounting 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 consulting services in accounting firms are there based in Switzerland?

RevenueBase identified 710 consulting services in 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?

BDO Switzerland, headquartered in Zurich, tops this list with the largest team on record.

Which city has the most consulting services in accounting firms?

Zurich leads with 64 headquartered companies, followed by Lugano (29) and Geneve (27).

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 2,215 verified decision-maker contacts tracked across these 710 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 24, 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.