OAS S.A., together with its subsidiaries, provides civil engineering and heavy construction services in Brazil and internationally. It carries out heavy-duty civil construction works in private and public sectors, such as highways, airports, hydroelectric power plants, dams, and ports; invests in infrastructure, sanitation, multipurpose arenas, oil and gas, concessions of urban roads, highways, subways, and airports. The company serves private and public customers, concessions, and private public partnerships (PPPs). OAS S.A. was formerly known as OAS Engenharia e Participações S.A. The company was founded in 1976 and is based in Sao Paulo Brazil with additional offices in Bolivia, Uruguay, Argentina, Chile, Ecuador, Peru, Haiti, Colombia, Costa Rica, Dominican Republic, Venezuela, Panamá, Trinidad and Tobago, Guatemala, Angola, Guinee, and Ghana.
