Internationalization of business is a logical and necessary step for all enterprises that want to expand their business and operate successfully. Internationalization of a enterprise is a demanding, expensive and time-consuming process that small and medium-sized entrepreneurs must go through if they want to develop and expand their own business beyond the borders of the country in which they founded their business. The importance of business internationalization is best illustrated by the fact that most enterprises immediately switch to internationalization after starting their business, and these enterprises are referred to as born global enterprises. The subject of this paper is the internationalization of small and medium-sized enterprises in Croatia using the example of the distillery "Craft Spirits". According to the categorization of the enterprises, the “Craft spirist” distillery is a micro-enterprise. It was founded in 2020 and has achieved excellent business results on the domestic and foreign market in the first years of its existence. The objectives of this paper are: to explain the importance of internationalization of small and mediumsized enterprises, to explore the theoretical concepts of the internationalization process and the challenges faced by small and medium enterprises in internationalizing their business. The aim of the paper is to present the internationalization of the "Craft spirits" distillery. After gathering information about the distillery "Craft Spirits" and interviewing the owner of the distillery, it became clear that the distillery is a born global enterprise because it has been exporting its products to foreign markets since the very beginning of its operations and has realized that the domestic market is too small for strategic business development. It is also clear that the distillery operates successfully because the owners are aware of the importance of planning all aspects of the business, including the process of internationalizing the business, and that successful internationalization of the business requires motivated employees, good business partners in foreign markets, time and quality products.