Management of an ETH/SIA engineering office for the planning and supervision of wood and masonry constructions as well as steel and concrete constructions, consulting in permafrost construction, creation of wood models, construction and consulting on the selection of construction and building materials with regard to building biology; the company can acquire land and properties and participate in other companies in Switzerland and abroad. The company can participate in other companies, found or acquire similar companies, do business and conclude contracts that promote the interests of the company and can also buy, sell or encumber real estate and found subsidiaries.