Management Team

"Wir freuen uns, wenn Sie gern wiederkommen."
swilhelm@w-4.ch
Sarah Wilhelm
General Manager Switzerland & Slovakia
mpolak@w-4.ch
Martin Polak
Co-Managing Director Slovakia
jwenzel@w-4.ch
Jörg Wenzel
Founder & Owner, General Manager Germany
jamesyu@w-4.ch
Jingyun Yu
Managing Director China
jzscheile@w-4.ch
Jens Zscheile
Chief Technology Manager
mnaas@w-4.ch
Martin Naas
Chief Digital Manager
fbayer@w-4.ch
Frank Bayer
Head of Sales Germany
ctheune@w-4.ch
Corinna Theune
Accounting & Controlling
iwenzel@w-4.ch
Ivana Wenzel
Business Development Italy
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W4

Switzerland
Idastrasse 14 // CH-8003 Zürich
Stadtturmstrasse 19 // CH-5400 Baden

Germany
Königsbrücker Strasse 70 // DE-01099 Dresden
Ringstr. 19B // DE-69115 Heidelberg

Slovakia
Hviezdoslavovo nám. 17 // SK-81102 Bratislava

China
F13, No.6, Wuliqiao, Chaoyang District //
CN-Beijing

135 Yanping Road Jing'an District //
200042 Shanghai

Switch Board +41 58 680 5000

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