Dr. Karl Ludwig Kley and Norbert Leonhardt are the Managing Directors of  GLASBAU HAHN GmbH in Frankfurt, while Jennifer Neumann is the manager of HAHN Lamellenfenster GmbH in Stockstadt.

Both companies act in the tradition of a global company that is committed to artisan perfection and rigorous quality. Equally important for the young generation is the continuous development of market-relevant technology, because only as innovative companies the glass experts of HAHN can preserve tradition, keep quality standards high and create new, extraordinary and immortal ventures - with the strength of "Made in Germany".

Sustainable management has been a fundamental characteristic quality for GLASBAU HAHN for a long time and is now also actively practiced by the HAHN Lamellenfenster GmbH. This is realized at all levels through a socially oriented human resource management, thanks to an open internal communication policy between departments, with expert knowledge and resource-efficient production processes.

To achieve the company target of market leadership and to retain this position remains a major challenge of both companies. In this spirit, we listen carefully to the wishes of our clients, operate marketing, technical development and conservation research in order to optimize HAHN products and services, and invest consistently in further developments.

In the beginning of 2010, the "New York Times" described GLASBAU HAHN, as one of the small, highly specialized and globally active companies who are a driving force for the economic growth in Germany following the financial and economic crisis.