Projel started its activities developing Highway Projects in 1971 when it was founded.
It began providing services of Construction Management and Technological Control in 1984, expanding them to other public agencies, town halls, private and public companies. Consequently, it has enlarged its technical staff and facilities.
In 1992 it began operating tolls to DER-SP [Highway Department of São Paulo], service which was later on expanded to highway concessionaires.
In 1997 the company also began operating Weight Stations, using high-tech import equipments, and today this service is extended to several states and highway concessionaires.