About us

Edwin A. Scherrer

Acting president board of management


Long-term CEO and VR of listed companies, extensive experience in domestic
and international project management and management roles

Hans Scherrer

Board of management

  • Graduate auditor
  • Graduate tax expert
  • Graduate expert in accounting and controlling

Inés Buckenmayer

Managing director


Experience in bank and construction management, Administration, Marketing


Martin Dönz

Martin Dönz GmbH
Juchächerstrasse 6
8966 Oberwil-Lieli
Phone +41 56 521 30 74


Dipl. Architect FH

Long-term cooperation partner 

Creative design and solid, experienced practitioner in architecture and
construction management