Tanja Jacquemin

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.

Part of Volkswagen AG, Porsche Holding Stuttgart GmbH is a private company that provides financial services. The company is based in Stuttgart, Germany.

VINCI Energies Deutschland Industry & Infrastructure GmbH engages in the construction, operation, and optimization of energy, transport, and communication infrastructures, as well as industrial plants and buildings. It specializes in the areas of electrical engineering, automation and communication technologies, energy infrastructures, fire protection, insulation, soundproofing, and facility management. The company is headquartered in Frankfurt, Germany.

thyssenkrupp Hohenlimburg GmbH is a German company that supplies carbon steel products. The company is based in Hagen, Germany. The CEOs are Andre Matusczyk, Jan Janssen, and Markus Zobel. The private company was founded in 1993.