The beef business is composed of several networks, called here the agri-food networks. These are defined as a group of suppliers and distributors of an analyzed firm (in an individual case), or of the alliance being analyzed (in case of firms that manage a common brand). In this article a scenario analysis is done based on a review of the recent data and trends on Brazilian and global beef market, and many impacts to the beef business are identified. The main contribution from this scenario analysis is the observation of the emergence of 4 main networks that will rest stronger in global beef market in 2010. These networks will operate and coexist in 4 different market segments, with different needs.