Reinhart Zech von Hymmen

Rodenberg Türsysteme AG manufactures and distributes entrance door panels. It also manufactures products in both metal and wood variants. The company was founded in 1980 and is headquartered in Porta Westfalica, Germany.

GRR AG engages in the construction, project development, acquisition, management, and sale of real estate. These include discounters, supermarkets, retail and shopping centers, as well as hardware stores. It also specializes in the rental and leasing of properties. The company was founded in November 2005 and is headquartered in Nuremberg, Germany.

codecentric AG engages in the provision of software development and technology consulting services. It offers cloud planning, architecture, and implementation; development of smart data systems and artificial intelligence; information technology infrastructure set up; as well as design and implementation of security solutions. The company was founded by Rainer Vehns and Mirko Novakovic in 2005 and is headquartered in Solingen, Germany.

PZB Hold GmbH provides business and economic services. The private company is based in Unna, Germany. The CEOs are Johann-Peter Schnitger, Bernd Klinkmann. The German company was founded in 2014.

Bundesanzeiger Verlag GmbH specializes in publishing of legally prescribed proclamations and laws of the Federal Republic of Germany. They appears when new or modified legislation, regulations, or other file of in accordance with various provisions are to announce the Bundesanzeiger at irregular intervals. Laws or regulations are not legally without announcement. The Austrian official journal is therefore crucial in democratic interaction. The company was founded in 1949 and is headquartered in Cologne, Germany

Regierungskommission Deutscher Corporate Governance Kodex is a commission that consists of managing and supervisory board representatives of German listed companies and their stakeholders, such as institutional and retail investors, academics, auditors, and a trade union federation. It develops, reviews, and updates the code. The company was founded in September 2001 and is headquartered in Frankfurt, Germany.