Until recently, it was enough for industrial enterprises to buy the best available technology and use it more efficiently than competitors. Lean manufacturing was the most reliable tool to achieve the goal of forming a strategic economic portfolio. This paradigm ends today. Lean manufacturing by its philosophy forms a competitive advantage for the enterprise that has implemented Lean-tools in production processes. In this aspect, digitalization offers another way to increase productivity. Future competitiveness will be highest for those companies that plan to integrate lean manufacturing with digital technologies.Investments in digital technologies have become important, but the effectiveness of the transformation will depend not on special sensors, algorithms, models or Analytics tools, but on the effectiveness of the integration of Lean-tools with modern information technologies of production management. Production processes of companies operating in the nuclear power industry are not typical, which does not contribute to the effective implementation of packaged information products. The modern market of IT solutions is represented by a sufficient number of software products, but the specifics of the energy sector makes special demands on the digitization of management processes.In the near future, nuclear power companies will need to establish effective interaction and cooperation both within the company and with external partners, which is impossible without digital support for management decisions.