Christian Harder

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.

Ilbau Liegenschaftsverwaltung AG engages in the holding and management of participating interests in firms in the construction industry. The company is headquartered in Cologne, Germany.

Ed. Züblin AG engages in the provision of building construction and civil engineering services. Its services include turnkey construction, structural maintenance, tunnelling, ground engineering, structural steelwork, timber construction, environmental technology, bridge construction, chimney and refractory engineering, construction logistics, and modular construction . The company was founded by Eduard Züblin in 1898 and is headquartered in Stuttgart, Germany.

AKA Alföld Koncessziós Autópálya Zrt. owns and operates a motorway. It offers road maintenance, patrol, cleaning, and repair works, obstruction, ice, and snow removal solutions, and emergency assistance services. The company was founded in May 1994 and is headquartered in Budapest, Hungary.

Part of Krüger Group, Milchwerke Mittelelbe GmbH is a specialist in the industrial production of milk powders, infant nutrition, vending, and ready-to-drink products. The private company is based in Stendal, Germany. The CEOs are Uwe Bedau, Guido Colsman, Marc Krüger. The German company was founded in 1896.

ZMH GmbH operates as an investment holding firm. The company is headquartered in Spittal an der Drau, Austria.

BAU Holding Beteiligungs AG designs and constructs expressways and roads. The company was founded in1999 and is headquartered in Spittal an der Drau, Austria.