It started its activities in 1993, in the Telecommunications sector, and then expanded to the construction of Cable and Electrical Power networks in medium and low voltage.

A continuous development accompanies this Corporation founded and currently directed by the CPN Juan Carlos Zamora. The Development of which they speak and the professionalism of its Technicians and workers, has placed this company among the preferred by the large service providers of the Sector. 

It is also necessary to emphasize that this growth is based on the current trend of the construction of reliable Networks that allow the exchange and the use of an increasing volume of information. 

During the time elapsed PLANTEL SA has performed a large number of Works, putting in each of them the professional rigor that characterizes it and attending to the particular requirements that a particular application demands or the specifications of each of its clients. 

For its better performance the Company is divided into Areas and these in turn in Departments, among which are Telephony, CATV, Electric Power. All of them have their participation in each of the Projects and in the Construction of the different types of Networks.

The Telephony Department is divided into two groups: one responds to the traditional Telephony which is responsible for the laying of main underground networks and secondary networks that go from the terminal to the subscriber. For its part, the following group deals with the new technology: Fiber Optic, with which are built Troncales Networks that link the different Telephone Centers.