Harm van Maanen

Ärzte Zeitung Verlags GmbH operates as a newspaper publisher for physicians and other medical professionals. The company is headquartered in Germany.

Part of Nemetschek SE, Allplan Deutschland GmbH is a German company that provides building information modelling software for the design, construction and management of buildings, structures & heavy civil projects. The company is based in Munich, Germany. The company was founded in 1963 by Georg Nemetschek. The CEO is Joffrey Spinetti.

Part of Mensch und Maschine Software SE, acadGraph CAD Studio GmbH is a German company that provides computer-aided-design software solutions. The company is based in Munich, Germany. The CEOs of the company are Dirk Böckenförde, Martin Horstick, Roman Wagener. acadGraph CAD Studio was acquired by Mensch und Maschine Software SE on May 30, 2011.

Schlütersche Verlagsgesellschaft mbH & Co. KG provides media services to small and medium-sized enterprises. Its services include online marketing, entries in branch directories, creation of web pages, and search engine marketing for web visibility. It also offers trade journals and magazines, online media, books, and industry-specific events. The company was founded in 1747 and is headquartered in Hannover, Germany.

Springer Nature Deutschland GmbH publishes scientific books, periodicals, and journals that focus on scientific and technical information. It also offers business services, seminars, trade fairs, conferences, as well as online publishing. The company was founded by Julius Springer on May 10, 1842 and is headquartered in Berlin, Germany.