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.