tewag Technologie - Erdwärmeanlagen - Umweltschutz GmbH


The tewag GmbH company was founded in 2006 by Prof. Dr. Simone Walker-Hertkorn and Hans Reber. They were joined one year later by Klaus Bücherl. He, like Hans Reber, came from LUBAG GmbH, which is today part of the Tauw Group. The company's founders all have many years of experience in a variety of geological fields. Their expertise is mutually complementary, and forms the basis for the broad spread of tewag's activities in pollution investigation and remediation as well as in systems making use of geothermal energy. In March 2011 Prof. Dr. Simone Walker-Hertkorn merged her own consultancy company, Planungsbüro systherma GmbH, which she had run since the year 2000, into tewag GmbH.


Clients who engage tewag profit from the company's specialist know-how and are able to rely absolutely on the high quality of its work. The company has implemented a quality management system in line with the latest requirements of DIN EN ISO 9001 and DIN EN ISO/IEC 17025. Moreover, all its work is carried out in compliance with the Code of Conduct of the German Professional Association of Geoscientists (BGD). The Code lays down principles of impartiality, integrity, fairness and transparent pricing, as well as obligating its adherents to commit to ongoing professional development and training. The company's accreditation as an approved expert organisation, allied to its active participation in standardisation and regulatory bodies, is evidence of the high standards of technical and professional competence of its management and staff.