In the page's words:

KCE Eventainment is responsible for organizing major events such as the Night of the Museums in Frankfurt and Düsseldorf, concepts such as the Marche de Nuit and party and event series. WAOH Communications is a marketing agency with a wide range of services, from CD/CI projects to web and social media appearances. WAOH Events organizes customer events of all kinds. Frankfurter Stadtevents is the leading brand and platform for city tours and adventure tours. C/T/S designs and organizes card and loyalty programs such as City Card, Mainova City Card, Museumsufercard and Kufti and offers its own solutions for online ticketing.