One of the main features of the modern market is the ubiquitous competition. In order to create competitive advantage and survive on the market, modern companies have to surpass customer expectations and thus provide business excellence. The implementation of the quality system in the company's business strategy is one of the ways of achieving and improving the business results. The term "quality system" refers to a set of rules and standards that are consistently applied in the business of a company. They also have a significant impact on business organization, and their goal is to improve organizational performance of the company. The only certified quality systems are systems based on International Organization for Standardization (ISO). Common and standardized international standards are the basis for successful international trade as well as for the development of national economies, where the standard refers to a known and recognized measure for a certain quantitative or qualitative size within a particular social community. ISO international standards provide products and services with safety, reliability and good quality. For business operations, they represent a strategic tool to reduce operating costs through minimizing waste and mistakes in manufacturing process. At the same time, through increasing productivity, ISO standards are helping enterprises to access new markets, harmonize market rules for developing countries, and establish a free and fair global market. An example of implementation of ISO standards in company Brod plast is presented in this paper