Company lists · Data refreshed August 2026

Top 25 Accounting firms serving charities based in Switzerland

Name: Accounting firms serving charities based in Switzerland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Aug 30, 2026 417 companies tracked

RevenueBase identified 417 accounting firms serving charities headquartered in Switzerland as of August 2026 and tracks 1,853 professional contacts across them, including 729 with verified work emails and 25 with mobile numbers. Zurich is the largest hub.

This list covers accounting firms serving charities 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 August 30, 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 RevenueBase Smart Search rating on every row Refreshed Aug 30, 2026 86% judged on-target in blind review

417Companies

1,853Contacts tracked

729Verified emails

25Mobile numbers

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The 25 largest accounting firms serving charities based in Switzerland

Ranked by team size

Top 25 of 417 accounting firms serving charities based in Switzerland, ranked by team size, largest first. Data refreshed Aug 30, 2026. RevenueBase Smart Search rates how each company's information relates to accounting firms serving charities: 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	Core Partners LTD	Indirect evidence	Freiburg, Switzerland	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 Aug 30, 2026
2	PKF Fiduciaire SA	Indirect evidence	Geneve, Switzerland	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 Aug 30, 2026
3	Reliance	Partial evidence	Zurich, Switzerland	11-50	32 contacts →
	Partial evidence “Based in Switzerland and Luxembourg, Reliance provides specialised services to families, companies and charitable organisations.” Source: RevenueBase Database · checked Aug 30, 2026
4	Fineac Treuhand TAX Audit	Indirect evidence	Zug, Switzerland	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 Aug 30, 2026
5	Tretor AG	Indirect evidence	Liestal, Switzerland	11-50	27 contacts →
	Indirect evidence “Die TRETOR AG gehört zu den führenden Treuhandunternehmen in der Nordwestschweiz.” Source: RevenueBase Database · checked Aug 30, 2026
6	Hüsser Gmür Partner AG	Indirect evidence	Baden-Dattwil, Switzerland	11-50	25 contacts →
	Indirect evidence “Hüsser Gmür + Partner AG ist Ihr aktiver Partner für klassische Treuhanddienstleistungen, Steuerberatung und Wirtschaftsprüfung.” Source: RevenueBase Database · checked Aug 30, 2026
7	Redi AG Treuhand	Indirect evidence	Frauenfeld, Switzerland	11-50	23 contacts →
	Indirect evidence “Die Redi AG Treuhand kann bereits auf eine über 40 jährige Geschichte zurückschauen.” Source: RevenueBase Database · checked Aug 30, 2026
8	Alltax	Indirect evidence	Basel, Switzerland	11-50	22 contacts →
	Indirect evidence “Ganz persönlich und alles aus einer Hand: Treuhand, Steuern, Wirtschaftsprüfung und Unternehmensberatung.” Source: RevenueBase Database · checked Aug 30, 2026
9	Caminada Zurich	Indirect evidence	Zurich, Switzerland	11-50	20 contacts →
	Indirect evidence “We have been acknowledged as an independent, flexible and trustworthy consulting firm since 1946.” Source: RevenueBase Database · checked Aug 30, 2026
10	Fidexaudit SA	Indirect evidence	Vevey, Switzerland	11-50	20 contacts →
	Indirect evidence “Depuis plus de 30 années, Fidexaudit accompagne ses clients dans tous les domaines de la fiduciaire.” Source: RevenueBase Database · checked Aug 30, 2026
11	THV AG	Partial evidence	Aarau, Switzerland	11-50	19 contacts →
	Partial evidence “thv AG is an Accounting company located in Ziegelrain 29, Zeiningen, Switzerland.” Source: RevenueBase Database · checked Aug 30, 2026
12	Consultive	Indirect evidence	Winterthur, Switzerland	11-50	17 contacts →
	Indirect evidence “Consultive ist Ihr KMU Partner für Revision, Treuhand und Unternehmensberatung in Winterthur.” Source: RevenueBase Database · checked Aug 30, 2026
13	Gfeller Partner AG	Indirect evidence	Langenthal, Switzerland	11-50	17 contacts →
	Indirect evidence “Gfeller + Partner AG ist ein mittelständisches Dienstleistungsunternehmen, welches Wirtschaftsprüfungs, Steuer- und Beratungsdienstleistungen anbietet.” Source: RevenueBase Database · checked Aug 30, 2026
14	Duttweiler Treuhand AG	Indirect evidence	Liestal, Switzerland	11-50	14 contacts →
	Indirect evidence “Die Duttweiler Treuhand AG ist Ihre Spezialistin für Buchführungen und Rechnungswesen, Ihre Expertin für Steuerberatungen, Wirtschaftsprüfungen, Unternehmensberatungen und…” Source: RevenueBase Database · checked Aug 30, 2026
15	Aidoo AG	Indirect evidence	Zug, Switzerland	11-50	13 contacts →
	Indirect evidence “Seit 1982 vertrauen nationale und internationale Gesellschaften und Privatpersonen in den Bereichen Steuern, Rechnungswesen, Unternehmensberatung und Wirtschaftsprüfung auf aidoo.” Source: RevenueBase Database · checked Aug 30, 2026
16	Abelia Wirtschaftsprüfung UND Beratung AG	Indirect evidence	Basel, Switzerland	11-50	13 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 Aug 30, 2026
17	Auditrium AG	Indirect evidence	Zurich, Switzerland	11-50	12 contacts →
	Indirect evidence “Wir denken neue Wege, Geben Zahlen Sinn und Klarheit.” Source: RevenueBase Database · checked Aug 30, 2026
18	Société Fiduciaire D'expertise ET Revision SA	Partial evidence	Switzerland	11-50	12 contacts →
	Partial evidence “Fiduciaire indépendante, genevoise et familiale, active dans l'établissement et la révision des comptes, la fiscalité, les services, le conseil et la gestion, notre approche de…” Source: RevenueBase Database · checked Aug 30, 2026
19	Convicta Treuhand AG	Indirect evidence	Hochdorf, Switzerland	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 Aug 30, 2026
20	Fidutrust Gestion ET Conseils SA	Indirect evidence	Fribourg, Switzerland	11-50	11 contacts →
	Indirect evidence “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: RevenueBase Database · checked Aug 30, 2026
21	Ostschweizerische Treuhand Zürich AG	Indirect evidence	Zurich, Switzerland	11-50	10 contacts →
	Indirect evidence “Ostschweizerische Treuhand Zürich AG, short OTG, has been in business since 1918 as an accredited audit firm conducting full and limited audits.” Source: RevenueBase Database · checked Aug 30, 2026
22	Tschanz Treuhand AG	Indirect evidence	Lyss, Switzerland	11-50	10 contacts →
	Indirect evidence “Immer mehr Banken bieten für Kleinunternehmen und Startups integrierte webbasierte Buchhaltungs- und Auftragssoftware an.” Source: RevenueBase Database · checked Aug 30, 2026
23	Wespi & Partner AG	Indirect evidence	Wallisellen, Switzerland	11-50	9 contacts →
	Indirect evidence “Seit 2013 begleiten wir als Treuhänder ein vielfältiges Portfolio von Unternehmen durch alle Phasen des Unternehmertums – von der Gründung bis zur Nachfolgeplanung.” Source: RevenueBase Database · checked Aug 30, 2026
24	Pfister Treuhand AG	Indirect evidence	Uster, Switzerland	11-50	9 contacts →
	Indirect evidence “We gain INSIGHT into your current situation, as we maintain an OVERVIEW and work to promote your long-term financial OUTLOOK.” Source: RevenueBase Database · checked Aug 30, 2026
25	Indigo Treuhand AG	Indirect evidence	Huttwil, Switzerland	11-50	9 contacts →
	Indirect evidence “Indigo Treuhand AG ist eine partnergeführte Treuhandgesellschaft mit Standorten in Langenthal und Huttwil.” Source: RevenueBase Database · checked Aug 30, 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: accounting firms serving charities. 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 accounting firms serving charities.
Partial evidence: Its own public description names part of accounting firms serving charities, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name accounting firms serving charities. 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 417 accounting firms serving charities based in Switzerland

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Accounting firms serving charities based in Switzerland at a glance

As of Aug 30, 2026

39.3%Verified-email coverage

1.3%Mobile-number coverage

4.4Average contacts per company

1-10Median size (employees)

7.7%Largest-city concentration · Zurich

Aug 30, 2026Page data refreshed

Companies by employee count

1-10

297

11-50

102

51-200

10001+

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 accounting firms serving charities, 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 “accounting firms serving charities”. 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 accounting firms serving charities), 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 accounting firms serving charities, 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, 729 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 August 30, 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.

Accounting firms serving charities 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 accounting firms serving charities, 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 accounting firms serving charities are there based in Switzerland?

RevenueBase identified 417 accounting firms serving charities headquartered in Switzerland as of August 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?

Core Partners LTD, headquartered in Freiburg, tops this list with the largest team on record.

Which city has the most accounting firms serving charities?

Zurich leads with 32 headquartered companies, followed by Geneve (25) and Zug (15).

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 729 verified decision-maker contacts tracked across these 417 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 30, 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.