Enterprises, wishing to rival successfully in the unpredictable market, must adjust their structure and operational rules to the incessant uncertainty, transient opportunities and nonstandard behaviour of competitors. This can be achieved by the concept of an agile enterprise which, given the specific character of its internal resources and reactivity to environmental factors, is sensitive and capable of making a quick identification of opportunities in order to use them to effect its own growth and development. The present publication contains the sources of concepts of an agile enterprise along with the description of characteristics and mechanisms which shape its internal structure. There is also an overview of typical and recognized models of shaping an agile enterprise which are presented in the source literature. The publication is a theoretical consideration leading to the structurization and systematization of the discussed issue.