Obrascón Huarte Lain, often abbreviated as OHL, is a Spanish construction and engineering company founded in 1911. It specializes in large infrastructure projects, including roads, bridges, and tunnels, and operates in various sectors such as civil engineering, building, and industrial construction. The company has a significant presence in both domestic and international markets. Over the years, OHL has been involved in numerous high-profile projects, contributing to urban development and transportation networks. The firm is known for its commitment to innovation and sustainability, aiming to enhance the quality of life through its construction efforts while adhering to environmental standards.