This paper explores the management of ESCO projects from a theoretical and practical point of view. From theoretical insight into projects and project management in a systematic and comprehensible way gives the compilation of the knowledge gained by reviewing the research so far. Presenting a Practical Example of ESCO Projects in Rudan d.o.o. company it is suggested to apply theoretical knowledge on application in practice. ESCO projects respond to increased energy consumption and environmental pollution, and offer solutions to rationalize energy consumption and energy efficiency, thus contributing to reducing business costs. The particularity of ESCO projects is that they are financed from the savings generated by the realization of the projects. Rudan d.o.o. has recognized its business opportunity in providing services through ESCO projects. The first ESCO company that has implemented the ESCO project in the Republic of Croatia, is positioned in the market as one of the leading providers of energy services. The aim of this graduate thesis is to highlight all the important features of ESCO project management in the Rudan d.o.o example on a particular example of the Split Clinical Hospital Center - the Firule site where in 2016., with the leadership of Rudan d.o.o. a complete energy renewal project has been carried out.