As the title suggests, this Diploma thesis concerns the implementation of Corporate Social Responsibility principles into a selected company. The first, theoretical part presents a literature overview of the theory of CSR, its past and present, guidelines, measurement, benefits and the Triple Bottom Line approach. The practical part comprises of an analysis of a selected company which, based on the current circumstances, chose to withhold its name. Nevertheless, the main aim of the Diploma thesis was to analyze the processes as well as the internal and external environment within the company using the Triple Bottom Line approach - economical, social and environmental pillars. The following recommendations in each part are easily applicable within a short period of time and in most cases do not require financial expenditure. Analysis discovers that some CSR principles are automatically implemented therefore the chosen company can easily introduce the CSR approach, alongside existing Philanthropy and Sponsoring, due to its existing experience.