The aim of this master's thesis is to present how corporative management works in different companies in Republic of Croatia. These companies may differ according to ownership, number of employees, size, method of management and a number of other aspects. One of the most important elements which are required in order to comprehend corporative management is understanding the way in which administration and supervisory board work, and how crucial their interaction is for company’s prosperity. It is also necessary to have the knowledge of the theory of corporative management itself in order to apply it in practise as successfully as possible. This thesis contains detailed descriptions of the roles of supervisory board and administartion, and also their tasks and responsibilities, and all that considering is it a joint stock company or a a limited liability company.