HISTORY

The history of convex group begins more than 35 years ago. Following the foundation of our headquarter in Austria and the opening of our offices in Istanbul, Bucharest and Plovdiv, our group has taken part successfully in numerous national and international project in the fields of energy, environment and construction. Our competence gained from this experience points to a successful future.

1981 Foundation of Graber-Szyszkowitz ZT GmbH.
1988 Foundation of FA & WO Fazeli-Wolfesberger Ingenieure GesBR.
2004 Foundation of convex ZT GmbH.
2006 Joining of Graber-Szyszkowitz ZT GmbH and convex ZT GmbH.
2007 Foundation of convex Ltd. Şti. in Istanbul, Turkey.
2007 Foundation of convex consulting engineers s.r.l. in Bukarest, Romania.
2014 Joining of FA & WO Ingenieure GesBR and convex ZT GmbH.