Exercise of all activities in the field of building services and building technology, in particular planning, creation, service and operation of heating, air conditioning, ventilation, sanitary and refrigeration systems as well as electrical installations, technical operation management, monitoring of energy centers and plants, import and export of goods of all kinds, administrative, technical and infrastructural management of properties and plants of all kinds for own and third-party account, planning and realization of new and renovation projects as well as administration, rental, acquisition, sale and brokerage of properties; may establish branches, participate in or finance other companies, found or acquire similar or related companies, grant licenses and assume representations.