A concert office trading under the name of Hans Stratmann and based on Marktstrasse in the old town of Bielefeld, it books touring productions into halls across East Westphalia and the neighbouring Osnabrück region — classical galas, musicals, popular music and theatre. A second Bielefeld firm of the same name, Stratmann Event, works from Niedernstrasse and belongs to the newspaper publisher Neue Westfälische, promoting popular music, musicals and film-music programmes; which of the two stood behind older dates is not always clear.