This paper in the first part describes the basic information about business negotiation and in the second part describes the hristorical development, organizational structure and negotiation process of dm-drogerie markt d.o.o. (dm). To achieve the best possible business results, despite the increasing market competition, there has been a greater need for sales and negotiation skills. Nowadays, the key to a company's succes is, among other thins, the successful business negotiations of the employees in charge of that part of the business. The company dm is an example of a company that has recognized the importance of business negotiations in a timely manner and pays great attention to id in order to achieve the best possible business results, with the satisfaction of both employees and business partners. In dm, each organizational unit is in charge of individual negotiations and everyone in theri own way contributes to the overall success of the entire company. A significant contribution to the overall success of dm is made by each individual department including the negotiation of the Human Resources department with various consulting and education companies, as well as the negotiation of the Marketing department with various marketing agencies and othe media. The diploma thesis presents a more detailed review of the negotiations between the Procurement Department and the Expansion Department. The Procurement Department negotiates with varous commodity suppliers, and the Expansion department negotiates with a large number of potential and contracted landlords. For each department, the process that are applied in business negotiations are listed, all in order to archieve a win win situation.