The organisers of Wacken Open Air founded "Stone Castle Rockpromotions" in 1990 in order to organise the first festival. The name is derived from the direct translation of "Steinburg" from the district of Steinburg, to which Wacken belongs. Stone Castle remained the company's name until 1996. Up until 2014, the headquarters were located in Dörpstedt (Schleswig-Flensburg district) and then moved to Wacken. The company's name has been "ICS" (International Concert Service) GmbH since 1999. The company owns the label "Wacken Records" and the mailorder Metaltix, among others.