Today, in a turbulent business world with an extremely strong competition, it is very important to create and maintain good and quality interrelationships, either inside or outside the organization in which one works and operates. Agency theory and stewardship theory represent two basic instruments that help identify and solve problems that often occur in the area of corporative management, problems related to conflicting and contradictory goals and interests, as well as obtaining different benefits from different perspectives of subjects and participants. The goal of the research presented in this paper is the occurence and representation of agency theory and stewardship theory in the public sector. It aims at showing the level of importance of agency theory and stewardship theory in identifying and solving problems related to interrelationships and its purpose is to explore in what amount theoretical approaches are represented in the real world, more precisely in the public sector. For the purpose of preparing this paper, an empirical research was conducted in its applicative part. The empirical research was conducted in the form of a questionnaire on a sample of 30 subjects questioned in the area of public sector in the City of Zagreb. The results and conclusions of the research showed that agency theory is significantly less represented in the public sector, respectively in the organization in which the empirical research was carried out. The elements of stewardship theory dominate significantly in almost all segments, since the participating organization and its employees are characterized by facts such as unselfish behaviour, fulfilment of team interests, collectivism, similar interests, goals and opinions, mutual trust and so on. In the conclusion it is argued that the domination of stewardship theory in the public sector is an extremely positive fact, given that such a business environment creates a better organizational climate, greater satisfaction of employees, and therefore better performance of tasks and work, resulting in better business results of the entire organization.