The great social, political, economic, and technological changes of recent decades, in addition to certain benefits, have brought about numerous social risks, to which the welfare state and the social welfare system are finding it increasingly difficult to offer adequate answers and solutions. These changes and processes also result in the social exclusion of an increasing number of people, which manifests itself in its most extreme form in the population of people that experience homelessness. By applying a multiple theoretical framework and referencing a broad range of foreign and domestic empirical research, the thesis analyses the results of 17 semi-structured interviews conducted with the representatives of public and civil institutions and organizations that operate at different levels of tackling the problem of homelessness in Croatia, and which concern their views on different aspects of the social inclusion of people experiencing homelessness – from their perceptions of what causes homelessness, through desirable models and approaches, to obstacles and challenges in the social inclusion of this social group. The results indicate that there is a high degree of agreement among help and support service providers about what leads people to homelessness, that they understand the social inclusion of their users as a multidimensional, dynamic, and relational process, and that they perceive numerous individual and structural obstacles and challenges that stand in the way of their exits from homelessness. Noting that the successful solution of complex social problems requires the engagement and cooperation of a wide range of actors, the thesis points to the coherence of the views of different help and support service providers as an important element in the social inclusion of vulnerable social groups, as well as a prerequisite for the further development of the concept of integrated social services and combined social policy in Croatia.