Stefan Jung-Diefenbach

Bauunternehmung Albert Weil AG is a construction company based in Limburg-Offheim, Germany. The German company's subsidiaries include Dienstleistungen Albert Weil GmbH, Immobilien-Projektentwicklung Albert Weil GmbH, Industriebauservice Albert Weil GmbH, BUSS Sand- und Kieswerk GmbH, Albert Weil Umwelt GmbH, and Albert Weil Idstein GmbH. The private company was founded in 1948 and the CEO is Klaus Rohletter.

Wellener Immobiliengesellschaft mbH is a German company that provides real estate services. The private company is based in Wellen, Germany. The CEOs of the company are Stefan Jung-Diefenbach, Klaus Rohletter.

Schmitz Wiedmühle GmbH is a private company based in Neustadt, Germany. The German company specializes in site logistics and the sale of bulk materials such as sand, gravel, lava, basalt, and topsoil. The company also offers boulders made of different types of stone in all sizes. The company was founded in 1950 and is currently led by CEOs Manfred Schmitz and Brigitte Schmitz-Kirschbaum.