The present contribution details the main motives for which the kindling’s' businessmen and medium enterprises must penetrate to the environment of the electronic commerce since at present the tendencies are related straight to the information technologies companies managers allowing to help in a genuine way so much and autonomous in the use of this way like new route of sale to the market thinking about how to increase this way its income for each of them. Another fundamental aspect is the participation of the PYMES in the sector Electronic commerce, citing as an example companies that they take as a base to the managerial sector of the economy mostly Internet route increases the sales. This investigation presents an analysis realized based on reports prepared by the department of telecommunications and magazine of Ekos Business, by what there was cited as an example the ranking of the 100 best PYMES to choose which is most hit to be employed at kindling’s and medium enterprises, since the obtained results threw that not even 50 % of the PYMES in Ecuador use Electronic commerce as technological tool to promote its products since the investment that this leeway is usually a limit in a PYMES.