Burkhard Schmidt

Rud. Otto Meyer Technik GmbH & Co. KG engages in the design, implementation, and operation of building technologies. It provides services to service and facilities management, electrical, mechanical, and building automation. The firm's services include repair and maintenance, energy management, low and high voltage technologies, safety technology, ventilation and air conditioning technology, monitoring and trend analysis and electrical installations. The company is headquartered in Stuttgart, Germany.

Zech Group GmbH operates as a management holding company with interests in the construction, real estate, hotel, environment, technology, industry, as well as international and consulting sectors. It focuses on the entire property-related value-added chain. The company was founded in February 1909 and is headquartered in Bremen, Germany.

ZECH Building AG engages in the implementation and management of construction works. Its business activities also include environmental protection and rehabilitation of environmental damages. The company was founded on June 23, 1990 and is headquartered in Erkrath, Germany.