Brazilian companies later joined in the international market. This occurred both in the case of industrial and services companies. This study focuses on a specific segment of the food service type fast food. We sought to investigate the beginning of international expansion of Brazilian fast food networks, since those that are already internalized are in the early stages of this process. The study sought to identify cases of early success that could serve as an example for companies who wish to follow the path of internationalization. Initially, we performed a brief review of the literature on the internationalization process. Then we studied the franchising as a mode of entry into foreign markets, since this is considered one of the main ways in which occurs the internationalization of fast-food restaurants. We used the methodology of case studies, due to a longitudinal research and the small number of internationalized companies in this sector. Data were obtained from secondary sources, including news in newspapers and business magazines, papers published in conference proceedings and the Internet, and queries to database of Center for Research in International Business at PUC-Rio (NUPIN - Núcleo de Pesquisas em Negócios Internacionais da PUC-Rio). The analysis included a description of the historical development of companies and their internationalization process, focusing on the issues and performing a comparison between the cases. The findings show the adoption of a process based on opportunities, insights for managers and trial and error. Some lessons are drawn that can serve to other Brazilian networks that wishing to expand internationally.