Our employees
Executive management

Alois Portmann
CEO / Owner
+41 41 495 05 20
Technical Management

Roland Waser
+41 41 495 05 20
Construction management / Calculation

Emanuel Kaufmann
+41 41 495 05 20
Office
Silvia Amrein
Administration officer
+41 41 495 05 20
Construction machine operator

Valentin Amrein

Peter Bares

Stephan Felber

Hans Graber

Thomas Künzi

René Ottiger

Stefan Roth

Branimir Sola

Fabio Studer

Michael Tischer