· GOLDBECK is one of the Top 10 Construction Companies In Germany. Address: GOLDBECK Ummelner Straße 46 33649 Bielefeld, Germany Phone: +49 521 94 88 0 Fax +49 521 94 88 1029. 8. SchwörerHaus. This is a family firm, founded in 1950, with eight sites in Germany.