Hansjörg Tengg

Mayr-Melnhof Holz Holding AG engages in the production and distribution of wood products for the construction industry. The firm operates saw mills and wood-processing plants. Its product portfolio includes sawn timber, glued laminated and cross-laminated timber, three-ply solid timber panels, profiled glulam panels, and glued lamella beams. The company was founded in 1850 and is headquartered in Leoben, Austria.

FERRO-Montagetechnik GmbH specializes in the field of industrial installations. It offers services in the areas of project and site management, planning and engineering, mechanical plant manufacturing, pipework construction, mechanical and electrical installation, as well as electrical and instrumentation systems. The firm also engages in plant servicing, spare parts service and manufacturing, modernization of power plants, and plant relocation. The company was founded by Heinz J. Angerlehner in 1980 and is headquartered in Wels, Austria.

Wiesenthal Holding GmbH engages in the acquisition and management of participating interests in firms. The company was founded on December 7, 2011 and is headquartered in Vienna, Austria.

Christof Global Impact Ltd. is an industrial machinery and British equipment company that also develops building projects and provides construction and environmental consulting services. The private company was founded in 2014.