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Deciphering the Swiss Commercial Register: A Guide to Zefix Extracts and the UID

24 September 2026

Do you have a Swiss Commercial Register extract in hand and don't know where to start? This guide will help you understand the main entries and extract crucial information for your business decisions.

Receiving an extract from the Swiss Commercial Register can, at first glance, feel like reading a document in an unknown language. Legal terms, abbreviations, and a defined structure can make it difficult to locate the information you're looking for. Whether you're vetting a potential business partner in Zurich, a supplier in Geneva, or simply ensuring your company's compliance in Lugano, understanding these documents is fundamental. In this guide, we'll walk you step-by-step through reading an extract obtained via Zefix, the central platform for searching data on Swiss companies.

What is Zefix and why is it so important?

Zefix (Central Business Name Index) is the central Swiss index of company names. It's the official and public access point to consult data on companies registered in the cantonal commercial registers. Each canton in Switzerland has its own commercial register, but Zefix aggregates them all, allowing you to search for a company across the entire Confederation with a single interface. This tool is crucial for:

  • Due Diligence: Assessing the reliability and solidity of potential partners or clients.
  • Compliance: Ensuring a company meets legal and regulatory requirements (e.g., AML or the new DPA).
  • Identity Verification: Validating the legal existence and domicile of an entity.
  • Market Research: Identifying key players in a specific sector.

When we speak of a "Zefix extract," we refer to the official document you can download containing detailed information about a company. It often also includes the Enterprise Identification Number (IDI or UID).

The UID (IDI) Number: The ID Card of the Swiss Company

Before diving into the extract, it's essential to understand the UID (Unique Identification Number for Enterprises). This is a unique, nationally valid identifier for every Swiss company and for organizations that are not businesses but are registered (e.g., associations). It's similar to a VAT number but has a broader purpose, grouping all data related to an economic entity. You will always find it in the extract, and it will be your primary reference point.

Key Sections of the Zefix Extract: What to Look For

A typical commercial register extract is structured into several sections. Let's look at them together:

1. Company Master Data (Identification)

This is the first section and provides basic information. Here you will find:

  • Company Name (Firma): The official name of the company. It may differ from the trade name or brand.
  • UID/IDI Number: As mentioned, the unique identifier.
  • Legal Form (Rechtsform): Indicates the type of company (e.g., AG/SA, GmbH/Sàrl, Sole proprietorship).
  • Registered Office (Sitz): The municipality where the company is legally domiciled. This is not necessarily the main operational address.
  • Address (Adresse): The full address of the registered office.
  • Registration Date: When the company was first registered.

Practical Example: If you are evaluating a software supplier in Basel, the registered office confirms that it is indeed a Swiss entity and provides a reference point for any official communications.

2. Company Purpose (Zweck)

This section describes the main activity or statutory purposes of the company. It's important to understand if the company operates in the declared sector and if its activities are consistent with what you expect. For example, a construction company in Zug will have a purpose related to construction or real estate management.

3. Share Capital (Kapital)

Here you'll find information about the company's capital, crucial for AGs/SAs and GmbHs/Sàrls:

  • Share/Social Capital: The amount of authorized or paid-in capital.
  • Shares/Quotas: The number and nominal value of shares or quotas, and whether they are registered or bearer (today almost always registered).

This gives you an idea of the financial solidity and ownership structure of the company.

4. Organs and Persons (Organe und Personen)

This is one of the most consulted sections, as it lists the individuals authorized to legally represent the company. You will find:

  • Board of Directors (Verwaltungsrat): For AGs/SAs, with name, surname, nationality, domicile, and function (chairman, member, etc.).
  • Management (Geschäftsführer): For GmbHs/Sàrls.
  • Procurists (Prokuristen): Individuals with power of attorney. Pay attention to the wording: a "collective power of attorney for two" means they must sign together with another procurist or board member. An "individual power of attorney" allows signing alone.
  • Auditor (Revisionsstelle): The entity responsible for auditing the accounts, mandatory for some legal forms or company sizes.

Scenario: A marketing agency in Lausanne sends you a contract. By checking the extract, you can verify who has the signing authority and ensure that the person who signed the document is actually authorized to do so. The lack of proper signing authority could invalidate the contract.

5. Publications and Special Facts (Publikationen und besondere Fakten)

This section lists the company's official publications in the Swiss Official Gazette of Commerce (SOGC/SHAB/FOFF). Here you might find information on:

  • Statutory changes: Changes of name, domicile, purpose.
  • Changes in organization: New appointments or resignations.
  • Bankruptcies, compositions, liquidations: Crucial indicators of a company's financial health. The phrase "in liquidation" is a warning sign.

How to Obtain a Zefix Extract and What Swiss Lead Pro Offers You

You can consult essential company data directly on Zefix for free. For a complete and official extract, you may need to pay a fee or request it directly from the cantonal commercial register office.

With Swiss Lead Pro, the process is even more streamlined and integrated. Our platform not only allows you to access Zefix commercial register data but also combines it with other public sources such as local.ch, search.ch, and Google Maps. This means that in addition to legal and formal information, you can obtain email addresses, phone numbers, and other essential contact data, all in a single CSV export.

Imagine you need to find new potential companies for your consulting service in Bern. Instead of navigating between different platforms and re-copying data, Swiss Lead Pro offers you a list of verified companies, with all the details you need to start your prospecting. What's more, our plans (from Free to Unlimited) are designed for every need, allowing you to perform a variable number of monthly searches or top up your account with flexible packages.

Understanding the commercial register extract is a valuable skill for anyone doing business in Switzerland. With tools like Zefix and the integration of Swiss Lead Pro, you can transform a complex document into a strategic resource for your business.

Ready to simplify your lead generation and company verification? Start today with a free trial of Swiss Lead Pro and discover how to get verified B2B lead lists, with all the commercial register data at your fingertips. Visit Swiss Lead Pro to learn more about our plans.

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