The aim of this paper is to analyze the impact of organizational culture (OC) on the company competitive advantage (CA).  The organizational culture has received significant attention recently. The literature on the organizational culture constantly supports the idea that this culture is significant for effectiveness and performance of the organizations. Although numerous studies have been conducted to explore the relationship between the organizational culture and performance, empirical findings seem to be mixed and inconclusive. Moreover, a limited number of studies examine the relationship between OC and CA, particularly in the tourism industry, a gap this study aims to fill. Data was collected from surveying employees working in five-star hotels and in tour operators companies.  The variables' reliability was analyzed by the composite reliability (CR); dimensional structure of the study variables was tested using exploratory factor analysis (EFA), CFA was employed to test the variables validity, and finally, multi-group analysis in structural equation modeling (SEM) was employed to test the causal link among the research variables. The study results and implications are discussed and justified.