A Smart City is one that achieves efficiency between its inhabitants and suppliers. To achieve this efficiency, Smart Cities require IoT, the Cloud and Big Data. IoT is fundamental, since every element of the city must be connected to send information to the Cloud. When it comes to digital transformation, neuronal networks are fundamental. We are focusing on traditional business, but new technologies such as IoT are connecting everything to the internet. Mexico does not have the infrastructure to support this transformation just yet. However, this is changing and we are on the right path. There are several companies heavily investing to reinforce the existence of the 4G network. Telecom companies are now working toward a new generation of 4G where users will be able to reach cable-speed connections without being connected to a cable. This will lead to new business models that we cannot even imagine now.