摘要: This document carries out a description and characterization of the actions taken by the MiPyMEs (Micro, Small and Medium size companies), which are suppliers of the Regional Residence of Projects Building on Transmission and Transformation of the South East (RRCPTTS, in Spanish) of the Federal Commission of Electricity, which are currently appointed to the Productive Chains of Nafin. The factors reviewed are: Financial Capacity, Human Resources Administration, Technological Resources, Products Quality and services and innovation. The main discoveries reveal that it is required a bigger support from the development banks in order to facilitate the Mipymes an access to financing; developing human resources with the aim of adapting to the borders opening and updating technologies required by the processes and an efficient communication with clients and suppliers, thorough the Internet.