This specialist postgraduate thesis examines the possibilities of restructuring the joint stock company Narodne novine Ltd. which is the company of particular interest to the Republic of Croatia. In order to make a proposal for a new organizational model derived by restructuring, the paper focuses on the theoretical elaboration of organizational changes that must be carried out for the successful restructuring. In this paper, the definitions of organization and organizational changes are clarified, the restructuring and its causes are defined, and a theoretical overview of organizational structures is presented. Furthermore, the importance of accountability centers is described as a possible organization management model. The last chapter in theoretical elaboration of organizational changes describes the models of managing complex organizations and the relationship between centralization and decentralization. In the second part of this specialist work, the importance of companies of strategic and special interest to the Republic of Croatia was emphasized. The analysis of the success of 5 selected companies of strategic and special interest to the Republic of Croatia was carried out. Finally, the necessity for restructuring companies from strategic and special interest to the Republic of Croatia was stressed. In the third part of this paper, using the case study methodology, the possibility of restructuring the Narodne novine Ltd. was studied. An organizational analysis of this company was carried out as well as an analysis of business performance from 2014 to 2017, after which a new organizational structure was defined according to the responsibility centers model. Based on the conducted analysis and using the case study methodology, a new organizational model of the Narodne novine Ltd. is presented which should create the preconditions for long-term viability of the business. Reorganization of the company Narodne novine Ltd. aims to change the organizational structure of the company with the intent to improve the business, to increase economic-financial efficiency of operations, to ensure sustainable development and to achieve the goals of the Medium Term Business Plan for the period of 4 years (2018-2021). In order to accomplish these goals, key changes are needed: introducing the function of development, strengthening the marketing function, introducing the function of the product categories management, rationalizing the wholesale network, optimizing the retail network, improving the logistics model, and improving business operations in printing and publishing activities.