The objective of this research is to analyze the influence of strategic management on competitiveness and organizational performance, an issue that is present in micro, small and medium-sized enterprises in the food and beverage preparation industry of the service sector. The study sample was of 200 Mexican organizations from Ciudad Obregón, Sonora. The results indicated that strategic management has a positive, direct and significant effect on competitiveness. The results that were obtained by means of linear regression analysis make it possible to assert that the interaction between both variables (strategic management and competitiveness) establishes significant differences in the levels of organizational performance. It was concluded that the enhancement of strategic management contributes to the increase in organizational performance. Therefore, a joint intervention must take place on strategic management and competitiveness.