Involvement of representations of nonlinear dynamics in the analysis of the functioning of industrial enterprises in a non-stationary environment provides a key to understanding the phenomena they experience — nontrivial cardinal perestroikas. Phases of slow and fast changes, periods of leaps and bounds in the complex evolution of enterprise activity reveal its inherent nonlinearity and find expression in the features of stable and unstable enterprise behavior. From these conceptual positions, the article offers a cursory analysis and interpretation of trends in the functioning of the industry of the Irkutsk region in 2015–2019 with an emphasis on the stable growth of indicators of the regional economy, in particular, gross regional pro­duct, regional budget revenues and fixed investment. The damping effect on sharp fluctuations in the macroenvironment and imparting pace of development to the regional industry was achieved thanks to a constructive public-private partnership, which served as the motive for the development and successful implementation of the State Plan for Social and Economic Development of the Irkutsk Region for 2019–2023 (State Planning Commission). A number of priority directions of the State Planning Commission and industrial points of growth in the Irkutsk region and the phenomenon of the evolution of enterprises with a mixture of stable states of various levels of efficiency are stated.