When it was founded, PERENGE was involved in civil construction projects in several states, mainly in São Paulo. At this stage, PERENGE Engenharia executed important works, highlighting: Edical Residential in Enseada Beach, Guarujá-SP., Residences in the luxury condominium called Iporanga, Guarujá-SP., Residences in the District of Morumbi, São Paulo-SP., Commercial Building in Pinheiros - SP.