Company lists · Data verified 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 Verified Aug 28, 2026 417 companies tracked

There are 417 accounting firms serving charities headquartered in Switzerland (RevenueBase, August 2026). RevenueBase 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. Data current as of August 28, 2026.

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 verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Core Partners LTD	Freiburg	51-200	44	3
2	PKF Fiduciaire SA	Geneve	51-200	34	25
3	Reliance	Zurich	11-50	32	12
4	Fineac Treuhand TAX Audit	Zug	11-50	27	19
5	Tretor AG	Liestal	11-50	27	15
6	Hüsser Gmür Partner AG	Baden-Dattwil	11-50	25	16
7	Redi AG Treuhand	Frauenfeld	11-50	23	18
8	Alltax	Basel	11-50	22	14
9	Caminada Zurich	Zurich	11-50	20	13
10	Fidexaudit SA	Vevey	11-50	20	2
11	THV AG	Aarau	11-50	19	15
12	Consultive	Winterthur	11-50	17	13
13	Gfeller Partner AG	Langenthal	11-50	17	11
14	Duttweiler Treuhand AG	Liestal	11-50	14	8
15	Aidoo AG	Zug	11-50	13	11
16	Abelia Wirtschaftsprüfung UND Beratung AG	Basel	11-50	13	6
17	Auditrium AG	Zurich	11-50	12	9
18	Société Fiduciaire D'expertise ET Revision SA	n/a	11-50	12	9
19	Convicta Treuhand AG	Hochdorf	11-50	12	6
20	Fidutrust Gestion ET Conseils SA	Fribourg	11-50	11	8
21	Ostschweizerische Treuhand Zürich AG	Zurich	11-50	10	8
22	Tschanz Treuhand AG	Lyss	11-50	10	5
23	Wespi & Partner AG	Wallisellen	11-50	9	6
24	Pfister Treuhand AG	Uster	11-50	9	6
25	Indigo Treuhand AG	Huttwil	11-50	9	5

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 28, 2026

1-10Median size (employees)

ZurichLargest hub · 32 HQs

25Contacts with mobile numbers

1Emails re-verified in last 30 days

Companies by employee count

1-10

297

11-50

102

51-200

10001+

Accounting firms serving charities by metro

Metro	Companies
Accounting firms serving charities in Zurich	32
Accounting firms serving charities in Geneve	25
Accounting firms serving charities in Zug	15
Accounting firms serving charities in Lausanne	15
Accounting firms serving charities in Basel	11
Accounting firms serving charities in Lugano	8
Accounting firms serving charities in Olten	8

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “accounting firms serving charities”, with match quality audited by blind human judging, and headquartered in Switzerland.
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: Contact records re-verify on a rolling cadence; 1 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many accounting firms serving charities are there based in Switzerland?

There are 417 accounting firms serving charities headquartered in Switzerland as of August 2026 (RevenueBase).

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 is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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Accounting firms serving charities by geography

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.