The subject of the research of this final work is the organizational culture as an inevitable means of development and business success at the level of each individual, and thus of the enterprise as a whole. In this paper, the concepts related to organizational culture are defined and explained, with an emphasis on the importance of its research and analysis, development and change conditioned by external or internal factors of the organization. Employee satisfaction is also defined, factors affecting employee satisfaction and how it affects employee behavior. The theoretical part of the work was based on secondary research, ie on collecting professional literature and comparing and analyzing works of the same theme of different authors. Empirical research was conducted through a questionnaire survey among employees of the Croatian Radio Television with the aim of identifying the existing organizational culture (dynamic / static) and proving its impact on employee satisfaction, which has been shown to be related to their effectiveness. From this it can be concluded that the organizational culture affects the efficiency of the employees and therefore its study is important for each organization. Analyzing the survey questionnaire, it was established that static bureaucratic culture prevails on Croatian radio television. This result is not surprising in terms of separation into independent units and a multitude of written policies and procedures to regulate employee behavior, but it is worrying about people's attitude, not taking their ideas into account and not encouraging their development. Such a relationship with employees negatively affects their performance and dedication to work, and it is recommended to change the organizational culture in that segment. This work can contribute to shaping an organizational culture or correcting an existing culture of an organization and leading to the adoption and implementation of new decisions that can result in improved interpersonal relationships and lead to greater employee satisfaction, and thus to the efficiency of the organization.