Dietmar Schäfers

STRABAG AG provides building, construction, and technical services. The firm engages in the design, planning, billing, and construction of structures and technical installations. It also sells and distributes building components, materials, and equipment. The company was founded in 1895 and is headquartered in Cologne, Germany.

Part of Rethmann SE & Co. KG, XERVON GmbH is a German company that specializes in industrial services. The company is based in Cologne, Germany. The company is trusted by customers from various industries and provide high system availability. XERVON Wind is their specialized technical service provider for wind turbines on land and at sea. The CEOs of the company are Olaf Karrass, Hans-Dieter Behrens, Carsten Lange.

Zusatzversorgungskasse des Baugewerbes AG engages in the provision of mandatory and non-mandatory supplementary pension schemes. The firm offers supplementary pension plans to construction workers and employees. It also finances vocational trainings. The company was founded on October 28, 1957 and is headquartered in Wiesbaden, Germany.