The work provides practical guidance on international business development, specifically for medium-sized enterprises. Exploring new markets and business areas, as well as the global establishment and expansion of customer relationships, are central tasks in international business development. From the internationalization strategy to the implementation of the necessary measures, practical information is provided for a strategic operational approach when entering new markets. The authors delve into key topics such as the reliable assessment of market opportunities, systematic competitor analysis, the selection and successful establishment of the distribution system, and the adaptation of products and marketing measures to the target market.