Düsseldorf is and long has been a powerful location for foreign companies to set up their German or European headquarters. The family of corporations and trade associations from the United States, Japan, the Netherlands, Britain and other nations makes a long read.
One reason is the incredible motoray network in front of the door. Others are the airport, the docks, the pool of qualified staff and the networked involvement of various city administration departments. The ecomic development offices also perform a highly results oriented and personal service.