Gasser AG, Bauunternehmung
Region Schaffhausen, Zürcher Weinland
NEW
Baudirektion Kanton Zürich
Zürich
Stadt Zürich – Amt für Hochbauten
Bourquin SA
Nordringstrasse 23, 4702 Oensingen
Georg Fischer
Biel
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Workmanagement AG
Rüti ZH
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