The purpose of the thesis was to examine whether energy companies are shifting from traditional marketing and start investing their resources into digital marketing as well as to identify the common patterns in digital marketing strategies of businesses operating in the energy sector. The focus was made on the two case companies selected for this research: Royal Dutch Shell Plc and Neste Oyj. The key objective of the thesis was to analyze the case companies in terms of their digital marketing presence and strategies. The final goal of the thesis was to formulate the main trends in energy companies digital marketing strategies based on the conducted analysis. The theoretical part of the thesis includes the literature review of marketing strategy, marketing mix and market research methods. Furthermore, in order to obtain a deeper expertise on the research topic, digital marketing strategy and essential components of digital marketing were studied and discussed from the theoretical point of view. For the empirical part of the thesis a qualitative research method has been used. Moreover, companies’ social media accounts and website activities were analyzed by using a developed by the author research framework and with a help of SEMrush analytics tool. During the research, several common trends in the digital marketing activities of the case companies were identified. The research findings demonstrate that sustainable marketing, content marketing, influence marketing and video marketing are actively used by both case companies as a part of their digital marketing strategies. The conclusions part of the thesis discusses the findings and suggests the ideas for further research.