The PROJEKTIONISTEN GmbH creates highly customized software for digital businesses. The PROJEKTIONISTEN work for providers of mobility services such as th GVH and the Deutsche Bahn AG as well as the Region Hannover. The PROJEKTIONISTEN have a wide portfolio of successful projects in the fields of information systems for public transport, the visualization of complex information, Internet appearances and app development. An example is the digital timetable information of the GVH, including ticket sale and verification on the smartphone. Moreover, they developed an app for stations and their environment (Abfahrt.AR) and an app for cabs.