The article discusses the theoretical foundations for the implementation of the analysis of the effectiveness of the Russian business community, and also analyzes the totality of approaches of domestic authors of fundamental and applied literary sources with their subsequent systematization. As the analysis of published scientific papers shows, there is a problem of the lack of a unified position, which, as it seems, results in a decrease in the level of economic security of Russian economic entities due to a decrease in the effectiveness of research and analytical activities carried out by company specialists. As the new scientific results obtained, it should be noted, first of all, the proposal of a methodology for an abbreviated and extended analysis of the effectiveness of firms based on a wide range of tools of Russian scientists. In this regard, it was revealed that the reduced version model includes three most important components, namely: assessment and analysis of the economic efficiency of an enterprise based on generalizing financial and economic indicators, analysis of the profitability of economic activities and calculation of a generalizing indicator of the economic efficiency of the company's economic activities. At the same time, the extended version involves, in addition to the above, two stages, the first of which is the implementation of analytical measures aimed at analyzing efficiency in the context of narrow areas of activity of an economic entity, and the second is an analysis of business performance based on company value indicators, as well as a comparative rating evaluating the effectiveness of the company on the basis of benchmark marketing. In addition, the work systematizes the opinions of scientists regarding the definition of the meaning and role of this type of analysis, and also identifies key information sources on the basis of which the analysis of the effectiveness of the company's activities is carried out, which is defined as financial statements, which include legally approved forms of accounting and explanatory material for them. The work used general scientific methods of cognition, such as methods of analysis, synthesis, generalization, and comparison. The key goal of the study was to improve the methodology for analyzing the effectiveness of the company's activities based on the results of the works of domestic authors
