Obrascón Huarte Lain, S.A. operates as an infrastructure company primarily in the United States, Europe, and Latin America. The company operates through Construction, Industrial, and Other segments. The company carries civil engineering and building construction works for public and private customers. It is also involved in the design, construction, maintenance, and operation of oil and gas, renewable, mining and cement, solids engineering, and fire-fighting systems. In addition, the company engages in the development and operation of premium or luxury mixed-use hotels, and leisure centers; construction, execution, operation, and conservation of various types of infrastructure and works; real estate project development activities; and provision of financial studies and management consultancy services. 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 based in Madrid, Spain.