Ulrich Steffen Ritter

Deutscher Sparkassen Verlag GmbH develops banking solutions. It offers payment solutions, mobile and digital banking, content marketing and corporate publishing, consulting, as well as document and information management. The company was founded on April 1, 1935 and is headquartered in Stuttgart, Germany.

Verlagsgruppe Georg von Holtzbrinck GmbH operates as an investment holding company with interests in publishing books, newspapers, periodicals and online media. Its customers include authors, researchers, academics, educators, librarians, and readers. The company was founded in 1971 and is headquartered in Stuttgart, Germany.

PricewaterhouseCoopers AG provides accounting services. It services include transactions, financing and investment, restoration, restructuring and forensic services, strategy, organization, processes and systems, financial accounting, reporting and auditing services and regulated industries. The company is headquartered in Frankfurt, Germany.