He worked for various companies in Switzerland and the United States in finance , retail and marketing .
Silvio Werner Denz ( born 14 September 1956 in Basel , Switzerland ) is a Swiss entrepreneur and collector of wine and art , currently living in Switzerland .
Silvio Werner Denz worked for various companies in Swiss and the United States in finance , retail and marketing .
Silvio Werner Denz ( born 14 September 1956 in Basel , Switzerland ) is a Swiss entrepreneur and collector of wine and art , currently living in Switzerland .