ACS, Actividades de Construcción y Servicios, S.A. provides construction and related services in Spain and internationally. The company undertakes construction activities related to development of highways, railways, maritime, airport works, hydraulic infrastructures, coasts, ports, civil engineering, educational and sports facilities, residential, and social infrastructures and facilities; undertakes contracts for the provision of mining services and infrastructure required for mining activities; and offers maintenance services for buildings, public places, and organizations. It also engages in the operation and maintenance activities, and development of real estate infrastructures; design, development, construction, and operation of infrastructure projects, real estates, and facilities; and promotion and development of transport and public facilities, as well as management of different public-private collaboration models. In addition, the company offers services for people, such as care for elderly citizens and dependent people. Further, it provides services for building, such as maintenance, energy efficiency, cleaning, security, and logistics and auxiliary services. ACS, Actividades de Construcción y Servicios, S.A. was founded in 1997 and is based in Madrid, Spain.