Knut Giesler

TK Elevator GmbH engages in the manufacture, sale, and distribution of passenger transportation systems. Its products include passenger and freight elevators, escalators, moving walks, passenger boarding bridges, as well as stair and platform lifts. It also provides maintenance, real-time troubleshooting, and remote monitoring services. The company was founded in 1865 and is headquartered in Essen, 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.

Vodafone GmbH provides telecommunications services. The company offers wireless services including mobile Internet access and access to the Vodafone live! mobile portal service. It has operations in German cities and markets its products and services through branch retail locations through out the country. Vodafone was founded in 1989 and is headquartered in Dusseldorf, Germany.