The execution of superstructure and infrastructure works, civil engineering and construction, the planning and design of buildings, both as a client and as a general contractor. The purchase, sale, rental, exchange, brokerage and management of real estate in Switzerland and abroad. In particular, the construction and realization of real estate complexes consisting of luxury apartments, hotels with design/luxury infrastructure, wellness centers and parking garages. Participation in similar Swiss and foreign companies, financial, industrial, commercial and real estate, in the form of financing, investments, loans, guarantees, sureties, mortgages and in general personal and real guarantees. The purchase, sale and long-term administration of participations in other companies (Holding).