Look up a company by number

    UID number search (Switzerland)

    Free, official, source-cited — updated 2026-06.

    Search Company Records in Switzerland

    3 free lookups per day. No sign-up required.

    Reviewed by LemReveal Research TeamLast verified June 2026Primary source: Zefix

    How do I look up a company by its registration number in Switzerland?

    Enter the UID to look up a Switzerland company directly on Zefix. Unlike a name search, an UID returns exactly one entity, which is why it is the identifier to use for KYC, invoicing and contract checks.

    Step-by-step

    1. 1

      Find the UID on the paperwork

      The UID normally appears on invoices, contracts, the website footer or official correspondence. It is the number counterparties are required to quote.

    2. 2

      Search the UID

      Enter the number exactly as printed. Punctuation and spacing vary between documents — strip them if the search returns nothing.

    3. 3

      Confirm the returned entity

      Check the legal name on the returned record matches the name on your paperwork. A mismatch between quoted number and quoted name is a serious warning sign.

    4. 4

      Verify at Zefix

      For anything contractual, confirm the number against the primary source at https://www.zefix.admin.ch.

      https://www.zefix.admin.ch
    Open ZefixAll Switzerland records

    Frequently asked questions

    What is a UID in Switzerland?

    It is the identifier Zefix assigns to a registered entity. It stays with the entity even if the trading name changes, which makes it the reliable way to track a company over time.

    Is a UID lookup free?

    Yes. Looking up a company by UID on Zefix is free and requires no account.

    What if the UID returns no result?

    Re-enter it without spaces or punctuation first. If it still returns nothing, the number may be mistyped, belong to a different country's register, or not exist — ask the counterparty to confirm it in writing.

    Should I use the UID or the company name?

    The UID. Names are duplicated across entities within a group; the number is unique to one entity.

    How do I search for Swiss companies?

    Use Zefix (zefix.admin.ch) to search across all 26 cantonal registers simultaneously. You can search by company name, UID, or location. Results show the registering canton, where you can find more detailed information.

    People also ask about look up a company by its registration number in Switzerland

    The exact questions searchers type into Google — answered from the primary source.

    Is the Switzerland company register free to search?

    Yes. Basic company lookups on the Zefix are free — you can search by company name or registration number, view legal status, registered address and (usually) directors at no cost. Some jurisdictions charge a small fee only for downloading full filed documents.

    What is the official Switzerland business registry?

    The Zefix is the official public register of companies incorporated in Switzerland. It is operated by the government and is the primary source cited on this page — https://www.zefix.admin.ch.

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