Bc. SMELÁ Žaneta: OPTIMIZATION OF THE PROCUREMENT PROCESS WHEN SELECTING A SUPPLIER, Diploma Thesis, Technical University in Zvolen. Department of Economics, Management and Business. Thesis supervisor: Ing. Patrik Alac, PhD. Degree of professional qualification: engineer, in short „Ing.“. Elected: TU, 2020. 78p. The diploma thesis focuses on the optimization of the decision-making process and the selection of suppliers in the company Neuman Aluminum Fliesspresswerk Slovakia, s.r.o. The aim of the work was to point out the importance of the procurement process in the selection of suppliers. As the selection of a suitable supplier will affect the entire production process and thus the quality of outputs and, ultimately, customer satisfaction. The work is divided into two parts, in which the first part focuses on the theoretical analysis of management, decision-making and procurement issues. The second part deals with the analysis of the current state of procurement and the specification of deficiencies. The result of the work are proposals for optimizing decision-making processes in the procurement of business suppliers.