Luxembourg is the name of the principal city as well as of the country. The official language is Luxemburgisch, the local dialect of German. Written material from business and the government is usually available in French and in standard German. However, Luxembourg is a very cosmopolitan place with many foreign residents. The internal working language of a company may be French or German or even English.
Addresses are French in appearance.
For practical business purposes, Luxembourg can be treated as a French-speaking country. Other corporate forms do exist. S.A.s may be either privately owned or publicly traded. The building number precedes the street name. Major business streets route rte.