Ingeniería Cuatro S.A. is a Chilean engineering and infrastructure firm founded in 1983 that provides multidisciplinary services in civil engineering, transportation, urban planning, environment, and related fields for public and private sector projects. The company offers design, evaluation, coordination, and supervision services across areas such as road and transport infrastructure, environmental studies, structural engineering, mining and energy sector projects, hydraulics and sanitation systems, technical inspections, and economic and feasibility analyses, supporting major infrastructure development throughout Chile. 

• It is headquartered in Ñuñoa, Santiago, Chile. 

• It has over 40 years of experience delivering infrastructure solutions. 

• The firm works on infrastructure such as highways, bridges, tunnels, environmental impact studies, water systems, and more.