DBV, German Concrete and Structural Engineering Association (registered association) http://www.betonverein.de/
AIV, Architect and Engineering Association (registered association) Frankfurt am
Main
http://www.aiv-frankfurt.com/
WEA,
Wiesbadener Erfahrungstausch
WEA, Wiesbadener Exchange of Experiences
GdB Society of the Construction Industry
Frankfurter Geographische Gesellschaft e.V.
http://www.geo.uni-frankfurt.de/ipg/
NPS Nikon Professional Services
https://nps.nikon.de/de/00_00_00_home.php
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