Obrascón Huarte Lain, S.A. engages in the construction and concessions development businesses in the United States, Canada, Mexico, Chile, Peru, Colombia, Spain, Central and Eastern Europe, and internationally. It operates through Construction, Industrial, and Services segments. The company provides civil engineering works and building construction services for public and private-sector customers; and designs, constructs, maintains, and operates industrial plants and systems, including oil and gas, renewable energy, mining and cement, solids engineering, and fire-fighting systems. It also offers property and infrastructure maintenance services for homes and offices, urban green areas, road networks, and social and health services, as well as develops real estate projects, and develops and operates mixed use hotels. The company was formerly known as Sociedad General de Obras y Construcciones Obrascón, S.A. Obrascón Huarte Lain, S.A. was incorporated in 1911 and is headquartered in Madrid, Spain.