We live in time where discussions are ongoing on energy, energy efficiency, increased production efficiency, more rational use of energy ... The theme of this thesis is "Improving the efficiency of the manufacturing industry through research and development of innovative ICT services to increase energy efficiency", which will be analyzed, researched and presented in more detail in practice.. A concrete example would be the ComEnergy project of Combis Ltd., a leader in the domestic ICT market. The goal is to explore and analyze the opportunities and benefits of innovative technologies such as managing and analyzing large volumes of data in the cloud, advanced cloud analytics, developing advanced Internet of Things (IoT) environments to process energy management data through a sensor network, but and other signals from the manufacturing industry. An attempt will be made to prove that the development of significantly improved services and production processes results in the efficient and effective management of energy consumption and their associated costs in production. A system like ComEnergy will enable real-time monitoring of energy consumption of all parts of the production process in order to optimize production and identify problems with energy management in a timely manner. In this thesis primary and secondary data sources will be used. Primary data will be collected through empirical research, while basic secondary data sources will include foreign and domestic literature, scientific and professional books and articles, and the ComEnergy project documentation itself. In addition, an empirical study will be conducted within this Masters thesis on the relationship between manufacturing efficiency and energy efficiency. The aim of the research is to show to what extent the monitoring and regulation of energy efficiency through advanced ICT technologies affect efficiency in the manufacturing industry. The main research instrument will be a questionnaire created with the help of Google docs. For the purpose of the research, the persons selected were those involved in the implementation of the ComEnergy project, as well as their colleagues from the companies where the students of the Faculty of Economics in Zagreb work.