Issued by the company Dun&Bradstreet (D&B), the D-U-N-S® number is a unique nine-digit identification sequence that ensures the correct identification of every company and helps to present company structures on a national and international level.

You will find the D-U-N-S® number in the company’s SWISSFIRMS entry under the heading « Characteristics ».
Search for a company.

By clicking on the company’s D-U-N-S® number, you can directly access the information on the D&B database.

D&B is a source of information for checking the creditworthiness of companies in Switzerland and abroad. It links up the D-U-N-S numbers of parent companies, subsidiaries, head offices and branches of more than 500'000 companies in Switzerland and more than 100 million companies worldwide. Used by the world’s most influential standard-setting organisations, it is recognised, recommended and/or required by more than 50 industrial and commercial organisations worldwide, including the United Nations, the United States Federal Government and the European Commission.

In today’s globalised economy, the D-U-N-S® number has become the standard identification code for companies. The exact identification of potential business partners is indeed the first step to a successful electronic business partnership. Moreover, some Swiss companies such as the Swiss Post Office and Holcim require that their suppliers provide them with their D-U-N-S® numbers.

How do I obtain a D-U-N-S® number for my company?

If your company is registered at the Commercial Registry Office, it already has a D-U-N-S®  number, which is automatically assigned by D&B.

If you would like to order a D-U-N-S® number for your company, please fill in this form. D&B will reply within 10 working days. You can find more information on the D&B website or call D&B’s customer service in Switzerland (tel. 044 735 64 64).

You can order a D-U-N-S® number for your own company free of charge.

For any further information, please download the relevant flyer (PDF).

Other identification numbers

SWISSFIRMS ID : every company that is a member of a Swiss Chamber of Commerce has its own identification number, which is indicated at the top of the company’s SWISSFIRMS entry.

Commercial Registry No. : companies that are registered at the Commercial Registry Office of their canton also have an identification number, which is indicated on the SWISSFIRMS entry at the end of the list under the heading « Characteristics ». It provides direct access to the information on the Zefix database.

Crefo No. : this numeric code is issued by the company Creditreform. The Crefo number also appears on the SWISSFIRMS entry at the end of the list under the heading « Characteristics ». It provides direct access to the information on the Creditreform database.