Berthold Huber

AUDI AG engages in the development, production and sale of cars. It operates through the Automotive, and Motorcycles segments. The Automotive segment encompasses the development, production, assembly and distribution of vehicles of the Audi and Lamborghini brands, and the distribution of vehicles of other Volkswagen Group brands as well as the accompanying accessories and spare parts business. The Motorcycles segment covers the development, production, assembly, and distribution of Ducati brand motorcycles, including the accessories and spare parts business. The company was founded by August Horch on July 16, 1909 and is headquartered in Ingolstadt, Germany.

IG Metall is the largest individual trade union in the world, based in Frankfurt am Main, Germany, with subsidiaries in Germany. The German company provides information, materials, and useful guides to its members to help them achieve fairness and good working conditions in their workplaces and society. The private company's focus is on employment security, occupational safety, and value chains. The CEO of the company is Hans-Jürgen Urban.

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.