UID information letter


If an enterprise receives several letters with different UID referring to the same entity, it may be a duplication. The situation needs to be resolved by contacting the UID hotline.

Overview of the reference registers appearing in the letterhead of your UID letter

The name of the administrative service that declared you as a new enterprise appears on the letter you received about your UID. In their letterhead all letters contain a reference to the relevant administrative service (e.g. "Our reference: HR").

Further information


Please note that UID documentation is only available in German (DE), French (FR) and Italian (IT).

The following document is available:


Federal Statistical Office Enterprise Identification Number (UID)
Espace de l'Europe 10
CH-2010 Neuchâtel
+41 800 20 20 10

From Monday to Friday
08.30–11.30 and 14.00–16.00



Our English pages offer only a limited range of information on our statistical production. For our full range please consult our pages in French and German (top right hand screen).