Company lists · Data refreshed September 2026

Top 25 Fractional accounting services based in Switzerland

RevenueBase identified 109 fractional accounting services headquartered in Switzerland as of September 2026 and tracks 219 professional contacts across them, including 64 with verified work emails. Geneve is the largest hub.

This list covers fractional accounting services 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 19, 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 19, 2026 86% judged on-target in blind review
109Companies
219Contacts tracked
64Verified emails
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The 25 largest fractional accounting services based in Switzerland

Ranked by team size
Top 25 of 109 fractional accounting services based in Switzerland, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to fractional accounting services: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceLiestal, SwitzerlandHQ checked Sep 19, 202611-5014 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 Sep 19, 2026
2Indirect evidenceLyss, SwitzerlandHQ checked Sep 19, 202611-5010 contacts →

Indirect evidence

“Immer mehr Banken bieten für Kleinunternehmen und Startups integrierte webbasierte Buchhaltungs- und Auftragssoftware an.”

Source: RevenueBase Database · checked Sep 19, 2026
3Indirect evidenceFribourg, SwitzerlandHQ checked Sep 19, 202611-507 contacts →

Indirect evidence

“Comptabilité | Révision | Fiscalité | Administration | Conseils | Salaires | Création d'entreprise”

Source: RevenueBase Database · checked Sep 19, 2026
4Partial evidenceZürich, SwitzerlandHQ checked Sep 19, 20261-106 contacts →

Partial evidence

“Tarantino AG is an accounting company based out of Gartenstrasse 25, 8002 Zürich, Zurich, Switzerland.”

Source: RevenueBase Database · checked Sep 19, 2026
5Indirect evidenceLucerne, SwitzerlandHQ checked Sep 19, 20261-105 contacts →

Indirect evidence

“Von den Steuern und vom Jahresabschluss über klassische oder digitale Buchhaltung bis hin zur Finanzberatung für kleinere und mittlere Unternehmen bietet Zahlenmacher sämtliche…”

Source: RevenueBase Database · checked Sep 19, 2026
6Indirect evidenceMeilen, SwitzerlandHQ checked Sep 19, 20261-103 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
7Indirect evidenceDübendorf, SwitzerlandHQ checked Sep 19, 20261-103 contacts →

Indirect evidence

“Treuhand - All in One: Unsere Buchhaltungsabos zum Fixpreis - Belegverbuchung - Jahresrechnung - Steuererklärung - MWST Abrechnung - GV Protokoll - Optimierungsvorschläge -…”

Source: RevenueBase Database · checked Sep 19, 2026
8Indirect evidenceSion, SwitzerlandHQ checked Sep 19, 20261-103 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
9Indirect evidenceUitikon, SwitzerlandHQ checked Sep 19, 202611-503 contacts →

Indirect evidence

“Die digitale Treuhandlösung”

Source: RevenueBase Database · checked Sep 19, 2026
10Indirect evidenceSchindellegi, SwitzerlandHQ checked Sep 19, 20261-103 contacts →

Indirect evidence

“Wir bieten kompetente Buchhaltungs- und Steuerberatungsdienstleistungen für Privat- und Geschäftskunden von kleinen und mittelgrossen Unternehmen, Immobilieneigentümer und…”

Source: RevenueBase Database · checked Sep 19, 2026
11Indirect evidenceBaar, SwitzerlandHQ checked Sep 19, 20261-102 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
12Indirect evidencePfäffikon, SwitzerlandHQ checked Sep 19, 20261-102 contacts →

Indirect evidence

“Buchhaltungen, Steuern, Unternehmensberatungen”

Source: RevenueBase Database · checked Sep 19, 2026
13Indirect evidenceUntereggen, SwitzerlandHQ checked Sep 19, 20261-102 contacts →

Indirect evidence

“Wir bieten Ihnen Dienstleistungen für eine professionelle Betreuung Ihrer Finanzen und Administration an.”

Source: RevenueBase Database · checked Sep 19, 2026
14Indirect evidenceGland, SwitzerlandHQ checked Sep 19, 20261-102 contacts →

Indirect evidence

“Nous vous conseillons dans toutes vos questions de comptabilité, de ressources humaines et plus particulièrement en ce qui concerne la fiscalité.”

Source: RevenueBase Database · checked Sep 19, 2026
15Indirect evidenceLuzern, SwitzerlandHQ checked Sep 19, 20261-102 contacts →

Indirect evidence

“Mit Ihren Anliegen rund um Rechnungswesen, Steuern, Personaladministration und vielem mehr sind Sie bei uns richtig gelandet.”

Source: RevenueBase Database · checked Sep 19, 2026
16Partial evidenceZug, SwitzerlandHQ checked Sep 19, 20261-102 contacts →

Partial evidence

“At Acconto Treuhand we are devoted to meeting the accounting, bookkeeping and tax planning needs of small and medium sized enterprises.”

Source: RevenueBase Database · checked Sep 19, 2026
17Indirect evidenceLenzburg, SwitzerlandHQ checked Sep 19, 20261-101 contacts →

Indirect evidence

“Wir kümmern uns um deine Buchhaltung.”

Source: RevenueBase Database · checked Sep 19, 2026
18Indirect evidenceAppenzell, SwitzerlandHQ checked Sep 19, 20261-101 contacts →

Indirect evidence

“Buchführung & Abschlusserstellung Lohnabrechnungen / Sozialversicherungen Wirtschaftsprüfung Steuer- & Unternehmensberatung”

Source: RevenueBase Database · checked Sep 19, 2026
19Indirect evidenceSchönenwerd, SwitzerlandHQ checked Sep 19, 20261-101 contacts →

Indirect evidence

“Bally Finance kümmert sich um kontinuierliche und sorgfältige Buchhaltung.”

Source: RevenueBase Database · checked Sep 19, 2026
20Partial evidenceZurich, SwitzerlandHQ checked Sep 19, 20261-101 contacts →

Partial evidence

“Keeping control of your accounting obligations requires access to experienced accountants.”

Source: RevenueBase Database · checked Sep 19, 2026
21Indirect evidenceLangenthal, SwitzerlandHQ checked Sep 19, 20261-101 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
22Indirect evidenceZermatt, SwitzerlandHQ checked Sep 19, 20261-101 contacts →

Indirect evidence

“Wir erledigen deine Finanzbuchhaltung und versorgen dich laufenden mit smarten Business Tipps.”

Source: RevenueBase Database · checked Sep 19, 2026
23Indirect evidenceSeltisberg, SwitzerlandHQ checked Sep 19, 20261-101 contacts →

Indirect evidence

“Treuhand | Buchhaltung | Begleitung für Selbständige und kleine Unternehmen Bei AFFINA GmbH unterstützen wir Menschen, die Verantwortung tragen – Selbständige, Gründerinnen und…”

Source: RevenueBase Database · checked Sep 19, 2026
24Indirect evidenceHärkingen, SwitzerlandHQ checked Sep 19, 20261-101 contacts →

Indirect evidence

“Wir bieten Firmen Finanzbuchhaltungen an.”

Source: RevenueBase Database · checked Sep 19, 2026
25Indirect evidenceSigriswil, SwitzerlandHQ checked Sep 19, 20261-101 contacts →

Indirect evidence

“teamKMU - wir unterstützen Dich”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 25 of 109 fractional accounting services based in Switzerland

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Fractional accounting services based in Switzerland at a glance

As of Sep 19, 2026
29.2%Verified-email coverage
2.0Average contacts per company
1-10Median size (employees)
5.5%Largest-city concentration · Geneve
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
103
11-50
6

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 109 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 fractional accounting services, 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 “fractional accounting services”. 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 fractional accounting services), 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 fractional accounting services, 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, 64 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 19, 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 fractional accounting services, 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 fractional accounting services are there based in Switzerland?

RevenueBase identified 109 fractional accounting services 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?

Duttweiler Treuhand AG, headquartered in Liestal, tops this list with the largest team on record.

Which city has the most fractional accounting services?

Geneve leads with 6 headquartered companies, followed by Zurich (6) and Basel (4).

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 64 verified decision-maker contacts tracked across these 109 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 19, 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.