The effectiveness of procurement activities significantly depends on the formation of the enter- prise’s supply base and the choice of suppliers of material and technical resources, for which various approaches are considered, including functional, structural, strategic, integrated, resource-based, retro- spective, process-based, result-oriented, etc.
The approaches to determining the theoretical content of the integrated structures are considered. In this article the aim, objectives and role functioning economic structures integrated in the national economy of Ukraine are considered. The characteristic of the assets of the integrated structures, their share in various fields is showed. Directions of their functioning in the context of globalization and increased competition are determined. The main criteria for their classification and types of integrated companies are defined.