The article presents the results of a study of interdisciplinary issues related to the definition of economic growth of an enterprise. The relevance of this study is due to the fact that in scientific publications characterizing the economic aspects of organizational growth, scholars do not specify what growth is meant. Such circumstances significantly blur the contours of research. In order to organize the scientific work on determining the economic growth of an enterprise, the author identifies two principal areas of research – functional and capital. The functional direction is inherent in most publications that focus on strategy and business management. The main idea of such studies is that growth is considered as an external form of development, demonstrating the presence of signs of system development based on the positive dynamics of its target parameters, including economic ones. The content of economic growth of an enterprise within the functional area is clarified through the prism of interrelated categories, such as organizational capacity, development goals, quality of economic growth, strategies and potential of enterprise development. The second area of research on the economics of organizational growth, the capital one, defines the phenomenon under study in the context of the modern provisions of the theory of enterprise capital and economic value. The economic logic of organizational growth is presented as an organic integrity of processes, relations and results of capital formation. And the essence of economic growth is interpreted as the positive dynamics of organizational value, which is a consequence of the processes of capital formation at the enterprise, which take place in an objective and incorporated space on the basis of interaction and relationships of differentiated types of capital. The development of the capital direction of the study of economic growth allows to substantiate both the parametric and criterion base for its identification and evaluation, and to consider economic ways to ensure the achievement of value results of organizational development.