The changes in world economy over the last years resulting from globalization, lifting of trade barriers, market deregulation, e-commerce expansion, among others, have made markets increasingly competitive. To face this new scenario, companies have adopted the strategy of outsourcing value chain activities and only the activities that differentiate them - called core competencies - are carried out internally. Companies have also adopted the strategy of purchasing through the Internet, making use of the enormous potential provided by the e-commerce. All of these changes increased the importance and complexity of purchasing areas and processes. The objective of this research is to propose a structured process for strategic sourcing, which combined with the e-procurement tools, will help companies face this new competitive scenario. This process is structured in eight phases interconnected with the e-marketplace and e-procurement tools. In addition, a case study will be presented, involving the joint use of strategic sourcing process and e-procurement tools in a Brazilian company.