This chapter presents a Portuguese company of the information technologies industry that did an internationalization process and has implemented a management control system with a very interesting complexity level and that, in reality, crosses the theory present in the different bibliographical references on the subject, with the experience and business practice of its management. Such management practices were so helpful that, in a short period, the company could internationalize its activity and turnover went from 10 million euros to 60 million euros, becoming a reference of its industry in Portugal. It should be noted that the case study was developed through the triangulation of different information sources, such as interviews and meetings, direct observations of management control practices, as well as consultation of documents and internal reports. The authors characterize the company and its evolution, national and international, as well as the management control system implemented with reference to the instruments developed in the previous chapters.