A Switzerland company lookup passes through four hands, and knowing the order explains everything else. The kantonale Handelsregisterämter keep the registers. The Eidgenössisches Amt für das Handelsregister (EHRA), within the Federal Office of Justice, checks and approves the entries and runs the central index. The SHAB — the Schweizerisches Handelsamtsblatt — publishes them. And ZEFIX, the Zentraler Firmenindex at zefix.admin.ch, assembles the result into one national search. This guide covers what that index is worth, when an entry actually starts to bind anyone, and how to reach the data. If you need the Swiss population rather than one company at a time, the Switzerland company directory covers the same registered entities with industry, size and contact breakdowns attached, and the Switzerland business database is the same file described as a dataset.
Switzerland company lookup: the short version
- Zefix states on its own search page that its data and references are ohne Gewähr — without warranty — and have no legal effect whatsoever.
- Binding are only two things: the certified extract issued by the competent Handelsregisteramt, and the publication text in the SHAB.
- An entry becomes legally effective against third parties only on publication in the SHAB. A change visible in Zefix may not yet bind anyone.
- The data of all registered legal entities, and the daily SHAB publications, are reachable through a public REST API.
The index says it binds nobody
Most national company searches let you discover their limits by reading the terms. Switzerland's puts it on the search:
"Hinweis zu Inhalt und Verbindlichkeit der Daten: Die im Zentralen Firmenindex (Zefix) geführten Daten und Verweise sind ohne Gewähr und haben keinerlei Rechtswirkung. Verbindlich sind einzig der vom zuständigen Handelsregisteramt ausgestellte, beglaubigte Registerauszug und der Publikationstext im Schweizerischen Handelsamtsblatt (SHAB)."
Note on the content and binding nature of the data: the data and references held in the Central Business Name Index (Zefix) are without warranty and have no legal effect whatsoever. Binding are only the certified register extract issued by the competent cantonal registry office and the publication text in the Schweizerisches Handelsamtsblatt (SHAB).
Where that sits matters as much as what it says. It is a Hinweis on the search itself — not a clause in terms of use that a reader accepts without reading, and not a footnote at the bottom of a results page. The index warns you before you use it.
The consequence is clean and worth stating without softening it: Zefix answers the question "is this company registered", and nothing more. For orientation, for finding an entity, for checking that a name corresponds to something real, it is the national tool and it is free. The moment an answer has to hold up — in a contract, in a dispute, in a file someone else will scrutinise — the document comes from the cantonal Handelsregisteramt or from the gazette, and not from the index.
Another register in this series draws the same boundary in a different place, and reading the two together is useful. The Italy company lookup guide covers a register whose ordinary document, the visura camerale, carries "informazioni e dati ufficiali" — official information and data — and yet "non ha però valore di certificazione e quindi non è opponibile a terzi": no certification value, not enforceable against third parties. Italy puts the line inside the document: the visura is official and does not bind. Switzerland puts it between the tools: the index warrants nothing, and the binding instruments are elsewhere. Same distinction between knowing and proving, drawn at two different points, and neither is the better arrangement.
The entry exists before it binds
The second half of the Swiss answer is sharper than the first for anyone monitoring companies for change, and it comes from the same notice:
"Die kantonalen Handelsregisterämter übermitteln ihre Einträge dem Eidg. Amt für das Handelsregister (EHRA). Dieses prüft und genehmigt die Einträge und leitet diese zur Publikation an das SHAB weiter. Die Einträge werden Dritten gegenüber erst mit der Publikation im SHAB rechtswirksam."
The cantonal registry offices transmit their entries to EHRA. EHRA checks and approves them and forwards them for publication to the SHAB. The entries become legally effective against third parties only upon publication in the SHAB.
Read that as a sequence and a gap appears in the middle of it. An entry can have been made at a canton, transmitted, checked and approved — and still not yet be effective against third parties, because effectiveness attaches to the publication, not to the entry.
For a reader watching for changes, that is the practically important sentence on this page. A change you can see in Zefix may not yet be effective against anyone. The index can be ahead of the moment that matters legally, and the moment that matters is a gazette publication rather than a register update.
What a Swiss company register entry contains
A self-contained summary. Switzerland's commercial registers are kept by the kantonale Handelsregisterämter. The Eidgenössisches Amt für das Handelsregister (EHRA), within the Federal Office of Justice, keeps a central business register which the Federal Office states is made accessible, updated daily, through the central business name index Zefix. The Federal Office describes the Handelsregister as a public source of economic information about companies, serving primarily legal certainty in business dealings and the protection of confidence — its Publizitätsfunktion. Zefix constitutes the publicly accessible offering of EHRA, and through the Zefix infrastructure the data of the central database of legal entities, the Zentralregister, is made publicly available over the internet; access is through the Zefix web application, a Zefix REST API at zefix.admin.ch/ZefixPublicREST/, and a mobile app. Through Zefix, the data of all legal entities registered in the commercial register and the daily commercial register publications in the SHAB are retrievable. The data and references held in Zefix are without warranty and have no legal effect whatsoever; binding are only the certified register extract issued by the competent cantonal registry office and the publication text in the Schweizerisches Handelsamtsblatt. The cantonal registry offices transmit their entries to EHRA, which checks and approves them and forwards them for publication to the SHAB, and entries become legally effective against third parties only upon publication in the SHAB. This summary does not describe the fields of a Swiss register entry, because none was established from the offices' own pages on the date shown.
What the register is for, and how to reach it
The Federal Office of Justice describes the purpose in terms that explain the disclaimer rather than sitting awkwardly beside it:
"Das Handelsregister ist eine öffentliche Quelle für wirtschaftliche Informationen über Unternehmen. Es dient in erster Linie der Rechtssicherheit im Geschäftsverkehr und dem Vertrauensschutz (Publizitätsfunktion)."
The commercial register is a public source of economic information about companies. It serves primarily legal certainty in business dealings and the protection of confidence — the Publizitätsfunktion.
A register whose purpose is legal certainty is a register that has to be careful about which of its outputs carry legal weight. The Zefix disclaimer is not in tension with that purpose; it is what that purpose looks like when the office is honest about the difference between an index and an instrument.
The Federal Office also states that EHRA keeps a Firmenzentralregister which "wird täglich aktualisiert über den zentralen Firmenindex Zefix® zugänglich gemacht" — is made accessible, updated daily, through Zefix.
And there is a real, official, machine route. Per opendata.swiss, Zefix constitutes the publicly accessible offering of EHRA, and through the Zefix infrastructure the data of the "zentralen Datenbank Rechtseinheiten" — the central database of legal entities, the Zentralregister — is made publicly available over the internet. Access is through the Zefix web application, a Zefix REST API at zefix.admin.ch/ZefixPublicREST/, and a mobile app. "Über Zefix sind die Daten von sämtlichen im Handelsregister eingetragenen Rechtseinheiten sowie die täglichen Handelsregisterpublikationen im SHAB abrufbar." — through Zefix, the data of all legal entities registered in the commercial register and the daily SHAB publications are retrievable.
Nothing is said here about rate limits or charges on that API, because nothing was sourced about either.
Where a Switzerland lookup stops
The cantonal structure is the reason the national search disclaims itself, and it is also where this page's limits live. Twenty-six cantonal offices keep the registers; a federal office checks, approves and indexes; a gazette publishes and, in publishing, makes entries effective. The index is the last link in that chain and the only one that holds no authority of its own.
So the routing rule is: find in Zefix, prove from the canton or the gazette.
This page describes no field of a Swiss register entry, because none was sourced. It also does not describe who is obliged to register in the first place — and that second gap is the more consequential one. SWITZERLAND_REPORT.md flags it first, because a coverage gap in a register is exactly the kind of thing these guides exist to name, and this one cannot be named responsibly until it is sourced.
Where the question is a population rather than a company, a firmographic directory covers the same registered entities with classification, size and contact data attached and queryable as a set; the Europe company directory breaks the European file down by market.
Data quality pitfalls to avoid in Switzerland
Treating a Zefix record as an authoritative document. Its data and references are without warranty and have no legal effect whatsoever; binding are the certified cantonal extract and the SHAB publication text.
Treating a Zefix change as effective. Entries become legally effective against third parties only upon publication in the SHAB, so the index can show a change before it binds anyone.
Requesting an extract from the wrong office. The binding extract is the certified one issued by the competent cantonal Handelsregisteramt.
Reading "ohne Gewähr" as a statement about accuracy. It is a statement about legal effect. The index is fed by approved cantonal entries; what it disclaims is authority, not care.
Assuming there is no machine route. Zefix exposes a public REST API through which all registered legal entities and the daily SHAB publications are retrievable.
Assuming registration is universal. This page does not establish who must register, so treat coverage as unverified rather than as complete.
A repeatable Switzerland company lookup workflow
- Search Zefix to find the entity and confirm it is registered.
- Stop there if you only need to know, and go to the canton or the SHAB if you need to prove.
- Check the SHAB publication before treating any change as effective against third parties.
- Identify the competent cantonal Handelsregisteramt before requesting a certified extract.
- Use the Zefix REST API for programmatic access, and make no assumptions about limits it does not state.
- Record that Zefix carries no legal effect, so a colleague does not later rely on your screenshot.
Frequently asked questions
Is Zefix an official Swiss company register?
It is the publicly accessible offering of the Eidgenössisches Amt für das Handelsregister, and it states that its data and references are without warranty and have no legal effect whatsoever.
What is binding, then?
Only the certified register extract issued by the competent cantonal registry office, and the publication text in the Schweizerisches Handelsamtsblatt.
When does a Swiss register entry take effect?
Entries become legally effective against third parties only upon publication in the SHAB. The cantonal offices transmit entries to EHRA, which checks and approves them and forwards them for publication.
Can I see a change in Zefix before it is effective?
That follows from the rule as stated: effectiveness against third parties attaches to SHAB publication, not to the register entry.
Is there an API?
Yes. Access to the Zefix data is through the web application, a REST API at zefix.admin.ch/ZefixPublicREST/, and a mobile app. This page states nothing about rate limits or fees, because nothing was sourced about either.
What does Zefix actually cover?
Through Zefix, the data of all legal entities registered in the commercial register and the daily commercial register publications in the SHAB are retrievable.
Why does the national search disclaim itself?
Because the registers are cantonal, the checking and indexing federal, and the binding act a gazette publication. The index assembles; it does not certify.
Source Register
| Fact | Source | Publisher | Retrieved |
|---|---|---|---|
| That the data and references held in Zefix are without warranty and have no legal effect whatsoever, and that binding are only the certified register extract issued by the competent cantonal Handelsregisteramt and the publication text in the SHAB — quoted verbatim in German | Suche im Handelsregister | Kanton Zug, reproducing the Zefix notice | 23.09.2026 |
| That the cantonal Handelsregisterämter transmit their entries to EHRA, which checks and approves them and forwards them for publication to the SHAB, and that entries become legally effective against third parties only upon publication in the SHAB — quoted verbatim in German | Firmen Schweiz | Kanton Zug, reproducing the Zefix notice | 23.09.2026 |
| That the Handelsregister is a public source of economic information about companies, serving primarily legal certainty in business dealings and the protection of confidence (Publizitätsfunktion) — quoted verbatim in German | Handelsregister, Zefix und RegiX | Bundesamt für Justiz | 23.09.2026 |
| That EHRA keeps a Firmenzentralregister which is made accessible, updated daily, through the central business name index Zefix — quoted verbatim in German | Handelsregister, Zefix und RegiX | Bundesamt für Justiz | 23.09.2026 |
| That Zefix constitutes the publicly accessible offering of EHRA, that through the Zefix infrastructure the data of the central database of legal entities is made publicly available over the internet, that access is through the web application, a REST API at zefix.admin.ch/ZefixPublicREST/ and a mobile app, and that the data of all registered legal entities and the daily SHAB publications are retrievable — quoted verbatim in German | Zefix — Zentraler Firmenindex | opendata.swiss | 23.09.2026 |
Fact
That the data and references held in Zefix are without warranty and have no legal effect whatsoever, and that binding are only the certified register extract issued by the competent cantonal Handelsregisteramt and the publication text in the SHAB — quoted verbatim in German
Source
Publisher
Kanton Zug, reproducing the Zefix notice
Retrieved
23.09.2026
Fact
That the cantonal Handelsregisterämter transmit their entries to EHRA, which checks and approves them and forwards them for publication to the SHAB, and that entries become legally effective against third parties only upon publication in the SHAB — quoted verbatim in German
Source
Publisher
Kanton Zug, reproducing the Zefix notice
Retrieved
23.09.2026
Fact
That the Handelsregister is a public source of economic information about companies, serving primarily legal certainty in business dealings and the protection of confidence (Publizitätsfunktion) — quoted verbatim in German
Publisher
Bundesamt für Justiz
Retrieved
23.09.2026
Fact
That EHRA keeps a Firmenzentralregister which is made accessible, updated daily, through the central business name index Zefix — quoted verbatim in German
Publisher
Bundesamt für Justiz
Retrieved
23.09.2026
Fact
That Zefix constitutes the publicly accessible offering of EHRA, that through the Zefix infrastructure the data of the central database of legal entities is made publicly available over the internet, that access is through the web application, a REST API at zefix.admin.ch/ZefixPublicREST/ and a mobile app, and that the data of all registered legal entities and the daily SHAB publications are retrievable — quoted verbatim in German
Publisher
opendata.swiss
Retrieved
23.09.2026
Every German sentence quoted above is the publisher's own wording, read on the date shown, with an English gloss beside it rather than in place of it. Two of the rows come from the canton of Zug's pages, which reproduce the Zefix notice; that is how they were read and it is recorded rather than smoothed over. No amount appears anywhere in this page's prose.
This page describes no field of a Swiss register entry and does not state who is obliged to register. Both are unsourced, and SWITZERLAND_REPORT.md flags the second first — if it turns out a business can trade legally in Switzerland and never appear in Zefix, that is a coverage limit a reader of this page needs, and it is not one to publish on anything less than an official source.
The readings that are InfobelPRO's rather than the offices': that the placement of the notice, on the search rather than in terms of use, is itself the point; that Zefix answers "is this company registered" and nothing beyond it; that the gap between an approved entry and its SHAB publication is the practically important one for anyone monitoring change; and that ohne Gewähr speaks to legal effect rather than to accuracy. Those are ours. The comparison with Italy is a comparison of where two registers draw the same line, offered without ranking.


