Buenaventura Ingenieros S.A. (Bisa), a subsidiary of Lima-based Compañía de Minas Buenaventura, is engaged in providing consulting, engineering and construction services towards developing projects in the mining and energy sectors. Founded in 1977 and based in Lima, Bisa has two business units: consultancy and construction. The firm has been involved in various projects, providing detailed engineering for Buenaventura's Tambomayo project, EPC services for Joy Global Perú, and building a haul road for Sociedad Minera Cerro Verde. Bisa has also been active in Argentina, Guatemala, Ecuador, Bolivia, Colombia, Mexico, Brazil, Spain and Venezuela. In 2015, the company reabsorbed its subsidiary Bisa Construcción S.A.