Non-Financials
Leica, Ludwig Pfeiffer Group, BR Bauhandel, ABB, Siemens, BKW, HP, Noventa, Weidmann, Gysin, Landis + Gyr, Osec,
Stettler Sapphire, Dürkopp Adler, Villiger, Rohde & Schwarz, SAP, DB Schenker,
Built / Skycell, Novaton, Pradelli, Bawaco, Al Qahtani, HBPO Group, Xylem Inc.,
GeRotor, Tengo, Cavex, Aximpro, Regena, GEZE (Schweiz), Helsinn (Pharmaceuticals), GEA, CRH Swiss Distribution, Rehau Group, Regal Springs (Food), phase2 etc.
Financials
ABN AMRO, UBS, Credit Suisse, Barclay's Capital, Gotthard Bank, Bank Sarasin,
Habib Bank AG Zurich, Winterthur Insurance, Landesbank Berlin, Luzerner Kantonalbank etc.
Teaching
SMBS - Business School der Universität Salzburg,
Executive School of HSG in St. Gallen (Switzerland), business schools in St. Gallen
and Boston (USA) and IVE Institute of Université de Fribourg and other universities
in Switzerland