Our office was founded in 1983 and our many years of experience enable us to solve even complex and extensive problems to the satisfaction of our customers.
Our staff spans many disciplines and by working well together your projects will be excellently managed across disciplines.
Through our locations and partner offices, which are distributed throughout Austria, we offer local support for you.

GDP offers know-how for everything in the field of geotechnics and soil mechanics
Our highly qualified, experienced and motivated employees ensure the success of your project! We offer a wide range of geotechnical services, the scope of which we have been able to continuously expand since our beginnings.
We support every project
Our team strives to apply its profound expertise in a customer-oriented manner and to elaborate technically and economically optimized solutions for projects of any size and for any project phase – from conceptualization and appraisal through design and detailed planning phases to execution and post-project support – at the highest level.

Company history
DI Dr. techn. Florian Scharinger
DI Dr. techn. Christoph Wiltafsky
DI. Dr. techn. Florian Scharinger
DI Roland Lüftenegger
Office opening in Vienna
Univ.-Prof. DI Dr. techn. Roman Marte professorship TU - Graz
Relocation of the branch office in Carinthia to Klagenfurt
Garber, Dalmatiner & Partner ZT-OG was founded
our locations


Orpheumgasse 15
8020 Graz


Krone Platz 1
9020 Klagenfurt


Fischer-Villa-Straße 2
5411 Oberalm


Schönbrunner Straße 59-61
1050 Wien


Gürtlerstraße 3
4470 Enns


Geotechnik Henzinger ZT GmbH
Josef- Speckbacher- Straße 16
6112 Wattens


NEUbauer ZT GmbH
Kalvarienbergstraße 76-78
8020 Graz


Laubreiter Bauingenieur Ziviltechniker GmbH
Auweg 30
8720 St. Margarethen bei Knittelfeld
Who we support
You can reach us by phone
Monday to Thursday from 08:00 to 17:00
Friday from 08:00 to 12:00