HOCHTIEF Aktiengesellschaft engages in the construction business worldwide. The company operates through HOCHTIEF Americas, HOCHTIEF Asia Pacific, and HOCHTIEF Europe divisions. The HOCHTIEF Americas division provides building and transportation infrastructure construction services primarily in the United States and Canada. The HOCHTIEF Asia Pacific division provides construction, mineral processing, engineering, concessions, operations and maintenance, for the infrastructure, resources, and real estate markets. This division also undertakes public-private partnerships (PPP). The HOCHTIEF Europe provides infrastructure construction projects, as well as PPP in transportation, energy, and social infrastructure project. HOCHTIEF Aktiengesellschaft was founded in 1873 and is headquartered in Essen, Germany. HOCHTIEF Aktiengesellschaft operates as a subsidiary of ACS, Actividades de Construcción y Servicios, S.A.