Teixeira Duarte-Engenharia e Construcoes, S.A. primarily engages in the civil construction and public works. It involves in the construction, cement, concrete, and aggregates, concessions and services, real estate development, hotel services and hospitality industry, and food trade businesses, as well as in the sale of petroleum products and vehicles. The company also involves in railway engineering, including tracks and catenary work, specializes in maritime and river works and rail infrastructures, and involves in the exploitation of aggregates and sale of ready-mix concrete.