Prof. Dr.-Ing. Mahmud Thaher
IngenieurSachverständigenBüro für Bauwesen und Geotechnik
Engineering Consulting Office for Civil Engineering and Geotechniques



TIS-TEC is your Engineering Consulting Office for Civil Engineering and Geotechniques and acts as service provider for clients demanding individual and result-orientated advice. Sound economical-technical optimization as well as damage-free constructions are the primary aims of the company for the clients’ long-term cost-effectiveness. Extensive experience in civil and geotechnical engineering means for you "Expert Knowledge to rely on".

The enterprise is headed by its owner Prof. Dr.-Ing. Mahmud Thaher. Due to his regular and constant connections to civil engineering practice, to expert experience and university (including research and standardization) it has a well-balanced know-how at high level. The optimal combination of these three Pillars provides the basis for highly innovative solutions in order to competently advise our clients:
  • Prof. Thaher acts as CONSULTING ENGINEER and works meanwhile over 25 years PRACTICALLY in civil and geotechnical engineering, as well as in the analysis of structural damages and rehabilitations.
  • As PUBLICLY APPOINTED AND SWORN EXPERT he delivers INDEPENDENT AND OBJECTIVE expert opinions for foundation engineering . earth works . special deep constructions . subsoil investigations . subsoil induced construction damages.
  • As Honorary PROFESSOR at the Frankfurt University of Applied Sciences he is SCIENTIFICALLY active in the topics of geotechnical engineering and geothermal energy.
You can entirely rely on appropriate delivery of your orders by TIS-TEC within the agreed time. Should there be any reason for complaint, get in contact with us please. We will be committed to improvement as our aim is to trustfully and objectively provide advice to you in an ever reliable manner. We enjoy to be there for you.

Prof. Dr.-Ing. Mahmud Thaher
Consulting Engineer IngKH Chamber of Engineers Hesse
Publicly appointed and sworn Expert IHK Chamber of Industry and Commerce Darmstadt
Professor Frankfurt University of Applied Sciences


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Dornhecke 1B
D-64331 Weiterstadt
T  0049 (0)6150 961 321-7
F  0049 (0)6150 961 321-8

Professor Thaher

Prof. Dr.-Ing.
Mahmud Thaher


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