This article is devoted to the study of the level of competition of management companies serving apartment buildings in the city of Voronezh. A review of studies on this topic showed that there are many works on assessing the structure of the market and the level of concentration, but there are practically no scientific works on studying the market of housing services. The purpose of this scientific work is to assess the level of competition in the housing services market of the city of Voronezh for further analysis of the level of achievement of some strategic indicators of the development of the municipality. The following tasks are solved in the study: to establish the number of managing organizations providing services in the housing and communal services market; calculate the market shares owned by management organizations in this market of housing services; calculate market concentration criteria. The subject of the study is a variety of theoretical and practical issues from the analysis of market structures and various indicators of market concentration. The methodological and theoretical basis of this scientific work is based on the work of Russian scientists, statistical data, legal acts, as well as data from publicly available official websites of municipal and regional authorities. The novelty of the study lies in the fact that indicators of market power and market competition were used to assess the level of competition in the market of organizations serving apartment buildings in the city of Voronezh. General logical analysis, systematic approach, tabular presentation of data were used as the main methods of scientific research. Based on the values of market concentration indicators, conclusions are drawn about the current level of competition of management companies in the city of Voronezh. The obtained results of the study make it possible to repeat the used algorithm for assessing the level of competition in relation to any municipality. From a practical point of view, the study allows us to evaluate the effectiveness of municipal government in terms of ensuring one of the components of economic security. There is a high level of competition in the management market of apartment buildings in the city of Voronezh.