about us Career working area Rental Contact Directions Official services Whether it is a rehabilitation building or a school canteen, a steel hall or a dike staircase for the state authority for coastal and nature conservation - we are also happy to work with the public sector. Due to the long-term cooperation with the GMSH (building management Schleswig-Holstein) we have profound experience in public procurement law. Reference 055 - Public contracts Extension of the Treia kindergarten Reference 049 - Public contracts Higher Regional Court of Schleswig Garage Reference 028 - Public contracts Adaptation building in Husum Reference 030 - Public contracts Drage dike stairs Horst Dieter Autzen GmbH Treenestrasse 20 24896 Treia Managing Director Dipl.-Ing. (FH) Nils Autzen Telephone 04626 475 Fax 04626 1334 Email: autzen-treia@t-online.de Register court : District court Schleswig 7 HRB 0487 Tax number: 29 004 012 63 working area Private Commerce and Agriculture Renovations public orders Current Legal imprint Data protection Note on the Consumer Dispute Settlement Act Sign up