Abstract: An information infrastructure is part of the overall infrastructure of enterprises. It refers to hardware, software, data management technologies, network and telecommunication technologies and services as well as the staff involved in the management of provided services.
The aim of this article is to elucidate the characteristics of information infrastructure and related issues in the era of digital transformation. In terms of theoretical tasks, this implies defining the concept of "information infrastructure" and identifying opportunities for its development. Practical tasks relate to analyzing some of the problems that a large Bulgarian enterprise is facing in terms of its information infrastructure and proposing methods for assessing the costs of the information infrastructure in the enterprise. Our research focuses on ‘Sparky Eltos’ AD in Lovech and suggests some practical guidelines for analyzing problems and offering adequate solutions.