EN
One of criteria for differentiating small-sized enterprises is the fact of belonging or not to a business group. It seems to be quite important for research in this size businesses. The paper presents the results of the study on the implementation of a strategy and the strategy formulation process in small-sized enterprises. The results showed quite significant differences depending on whether or not the enterprises were subsidiaries of a business group. These differences may become a starting point for a discussion on the importance of this feature in management science.