This paper discusses the extent to which the Ministry of Economy and Sustainable Development as a formal organizational structure understands the importance of internal communication, how it is implemented and whether and to what extent internal communication affects employee satisfaction. As a method of primary research, a survey was conducted on a stratified sample of 150 civil servants and employees. Based on the conducted survey, it is evident that the sources of information, the method of their transmission and timeliness significantly affect employee satisfaction, and thus the efficiency and quality of work tasks as well as employee behavior. It turns out that 58 percent of surveyed employees are mostly of completely dissatisfied with internal communication and that it does not meet their expectations. At the same time, 30 % of them rated communication with superiors as „insufficient“. The main sources of dissatisfaction with internal communication were identified, among which the non-receipt of feedback from superiors (67 %) stands out. Respondents cited a reliable source of information (48 %) and timeliness in obtaining information (45 %) as key to good internal communication. This points to a direct correlation between the quality and management of internal communication and the level of employee satisfaction, ie the conclusion that the quality and management of internal communication in the Ministry of Economy and Sustainable Development do not meet expectations and meet employee needs and are a source of dissatisfaction. Correcting the identified weaknesses is seen as a major challenge and it is proposed to strengthen all internal communication processes, improve the internal development system of executives, increase the availability of existing training programs, develop and implement a communication document at the body level and improve staffing needs.