Anything goes when you get together.
As a member of various organisations, we share our specialist knowledge and consolidate our shared expertise.

Hauptverband der Deutschen Bauindustrie e.V.
Federation of the German Construction Industry
https://www.bauindustrie.de/ 
Bauindustrieverband Niedersachsen-Bremen e.V.
Association of the Construction Industry Lower Saxony-Bremen
https://www.bauindustrie-nord.de/ 
Verband Güteschutz Horizontalbohrungen e.V. DCA
(Drilling Contractors Association)
https://dca-europe.org/index.php/de/
GSTT German Society for Trenchless Technology e. V.
Deutsche Gesellschaft für grabenloses Bauen und Instandhalten von Leitungen e. V.
https://www.gstt.de/