Deutsches Kupferinstitut Berufsverband is the other organization in Dusseldorf, Germany.
According to PR-model, kupferinstitut.de is ranked 63,233rd in multilingual Wikipedia, in particular this website is ranked 4,453rd in German Wikipedia.
The website is placed before uhlib.ru and after ncturkishfestival.com in the BestRef global ranking of the most important sources of Wikipedia.