The aim of this paper is to identify the factors that influence employees’ attitudes and perceptions of corporate social responsibilities (CSR), as well as to discuss if there are some significant differences in the application of CSR in the analyzed Western Balkan countries, especially in terms of public and private sector affiliation. This is the first academic survey which examined the employees’ attitudes and perceptions of CSR integrally in five Western Balkan countries. Multivariate factor analysis was applied to data collected from 2410 employees in the analyzed countries. In order to test additionally the results obtained by factor analysis, the Structural Equation Model (SEM) was applied. The results of the research, obtained by multivariate factor analysis and SEM model, show that the largest percentage of employees believe that the CSR concept enables the generating of new values and success of the company, as well as welfare for the whole society. Additionally, companies are increasingly recognizing the strategic importance of CSR for the sustainability of their business, as well as the importance of development of sustainable practices in the environment. Based on the results of the research, the authors found out that there were significant differences in the understanding and acceptance of CSR in the analyzed countries, while there were significantly smaller differences between the private and public sectors. The results of the research may serve as a guide for managers when making decisions about implementing the strategy and future activities regarding CSR.