Successful high-tech industries can be understood as ecosystems of enterprises and related organizations that are geared to develop platforms of global products, processes, and services; these platforms, by turn, are based on solid industrial architectures. This is called the Essential Trinity concept. In this way, the main objective of this chapter is twofold: first, to argue that information technology industries in developing countries, such as Brazil, can be understood through the Essential Trinity concept; and second, to argue also that the main characteristic of this industry in developing countries is that it has been historically organized only in terms of ecosystems of enterprises and related organizations, without developing either platforms of global products, processes, and services, or solid industrial architectures. In order to develop these arguments, the chapter presents the case of the IT industry in the state of Pernambuco (Northeast of Brazil), particularly through the development of its Porto Digital IT Park, as an example of an “unfinished essential trinity.”