Heike Milius

DB Regio AG provides commuter train services. The firm specializes in the development and operation of short- and medium-distance commuter train units in urban centers. It engages in passenger transport operations, with focus on regional transportation network connections within metropolitan areas. Its focus areas also encompass investments and contract management, pricing and revenue marketing, and information technology integration. The company is headquartered in Frankfurt, Germany.

DB Station & Service AG is a German company that constructs and operates rail filling stations. The company is based in Berlin, Germany. It is ultimately controlled by the Government of Germany. The company was founded in 2003.

DB Bahnbau Gruppe GmbH is a German company that specializes in railway construction and maintenance services. The company is based in Berlin, Germany. The company is a subsidiary of Deutsche Bahn AG, which is ultimately controlled by the Government of Germany. The CEOs of the company are Markus Egerer, Karl Markus Faller, Thomas Hermann.

DB Energie GmbH provides energy supply and management services. The firm focuses on railway power supply, electric supply, gas distribution, energy conservation, and technical support operations. Its service areas encompass energy data monitoring, network management, and infrastructure development and maintenance. The company was founded in 1997 and is headquartered in Frankfurt, Germany.

DB Jobservice GmbH provides employment agency services. The private company is based in Berlin, Germany. The CEO of the German company is Karin Albers.