Over the past few decades, organizational culture, performance and leadership have been widely studied in the business world. Culture has influenced the way in which companies conduct their business. Within this thesis the following question will be discussed: whether there is a perceived connection between organizational culture, leadership and performance in one particular organization. Many academics have concentrated their studies on the possible connections between organizational culture, leadership and performance but the results are diverse. The fact that the studies are not repeating the same results is found interesting by the authors, especially in terms of the analysis-part of this thesis where the chosen theories and prior studies are compared to the empirical results. Within this elaboration the question whether there is a perceived connection between organizational culture, leadership and performance is discussed and analyzed by including an empirical research. The company involved in the study is Italian Trade Commission where the director of the company and five project managers were interviewed through semi-structured interview questions guide. The purpose of the thesis was to investigate, how the employees of this one particular organization perceive their organizational culture and whether there is a perceived connection between organizational culture, leadership and work performance in this organization. The question about organizational culture was directed both to the director and to the project managers, whereas the questions about leadership were directed to the director, and the questions about work performance were directed to the employees. Three research questions were formulated in accordance to the purpose of this thesis. The results that were drawn from the empirical study indicated that the company’s organizational culture is partly strong due to the fact the employees perceived it in a similar way. In this particular organization the culture is “strong” and it is perceived in a similar way by the employees who are mostly taking the culture “for granted”. The two other research questions were concerning the perceived connections between organizational culture and leadership, and organizational culture and performance. In both cases the connection was found and it can be stated that the organizational culture of this particular company influences the leadership style and the performance is connected to the organizational culture. The results cannot be generalized as the case study only covers one organization. Recommendations of this thesis conclude that a need for further studies of organizational culture could exist as this could have a positive implication to the performance as well as to the social dimensions of the organization.