The development of the Bulgarian economy in the last two decades is conditionally divided into two significant periods - before the accession (2000-2007) and after the accession (2008-2020) of the country to the integration community of the European Union. The study of the results of this development can be characterized by multiple indicators, as well as by the position of its various aspects. The current research focuses on identifying the priority (strategic) industries that become a generator of economic success in Bulgaria. The research methodology builds on the information provided by the input-output model. The obtained results highlight those priority industries that have the strongest impact on Bulgaria's economic performance.