Execution of construction services of all kinds, i.e. engineering services, architectural services, construction planning and realization, construction management and cleaning, activities as general contractor, in particular in the field of civil engineering, heating, sanitary and electrical installations. Trade in as well as import and export of goods of all kinds, in particular with building materials and construction machinery of all kinds. The company can establish branches in Switzerland and abroad, participate in other companies in Switzerland and abroad, acquire or establish similar or related companies, and enter into all transactions that can achieve synergies with the main purpose. Furthermore, it can acquire, manage and sell real estate and securities.