HOCHTIEF Aktiengesellschaft is a construction company operating worldwide through its Turner, CIMIC, Engineering and Construction, and Abertis segments. It provides engineering, project management, supply chain, and procurement services for large-scale building, civil engineering, and industrial projects, as well as civil works execution, industrial and infrastructure maintenance, and construction management services. The company also serves public and private clients in engineering and construction, engages in infrastructure investment activities, and operates in the industrial, energy, natural resources, and civil infrastructure sectors. Founded in 1873 and headquartered in Essen, Germany, HOCHTIEF Aktiengesellschaft is a subsidiary of ACS, Actividades de Construcción y Servicios, S.A.