The potential of digitalization, digital transformation and digital technologies is important for environmental, economic and social sustainability in businesses and can be applied in various industries. In this scientific article, main author´s aim is to examine the green digital transformation in a theoretical generalization, then in the context of the European Union and to examine the use of digital technologies in the field of sustainable development in selected companies in the world. We used explanatory general theoretical methods. In the literature review, we defined the main concepts related to digital transformation, mapped the digital transformation in the context of the European Union and highlighted the link between sustainability and digital technologies. Examples of the implementation of sustainable technologies in various companies and compliance with sustainability are found in the results of the work and discussion. At the end of the scientific article, we propose definitions: Green digital transformation is the implementation of digitalization and interaction of green technologies into business processes, activities, products and models, when the company becomes environmentally sustainable. Green technology represents the integration and subsequent use of digital technologies to innovate business processes and are used in the field of sustainable environmental development of the organization.

The Internet of Things digitally transforms business entities, bringing them many benefits and the opportunity to become a digital business. The main goal of the scientific article is to theoretically define the digital technology Internet of Things and to map the current state of use of the Internet of Things. Internet of Things is industry 4.0 digital technology, which is a network of interconnected devices over a wireless connection, which are made up of technological and other components used to interconnect elements in an enterprise environment and provide various services. The scientific article focuses on the theoretical definition of the term Internet of Things, its characteristics, ecosystem, technology and Technology Stack Internet of Things. The results of the work and discussion include: mapping the application and use of the Internet of Things in various sectors, then in selected business entities, evaluating the use and defining your own definition of the Internet of Things. The examined business entities include: ABB, Airbus, Amazon, Boeing, ESI, Bosch, Caterpillar, Cisco, Intel, SAP, Siemens, Shell, Tesla.

Information Technology Service Management (ITSM) can be defined as the implementation, management and provision of quality information technology services that meet the needs of the enterprise to support business goals and customer needs in the area of IT operations. ITSM is an important factor in the success of many organizations and for this reason a large number of norms, standards, frameworks and models have been created (ITIL, COBIT, ISO/IEC 20000, ETOM, TOGAF, MOF and others) through which the company can use best practices and management practices information technology services. The most widely used standard is ITIL, which in its current version is aligned with the digital technologies of the digital era, so that together with consumers they create value, support business strategy and embrace digital transformation. The aim of the scientific article is to map the use of conceptual frameworks, norms and standards in the field of information technology service management. Business entities should use frameworks, standards and norms to be competitive, efficient and more profitable.