The concession model is a legal structure that allows private companies, shipping companies and investors to use public resources such as ports, wharves and sea routes to provide essential public transport services for passengers and cargo. This complex system of contracts shapes the dynamics of the entire liner coastal shipping sector, setting conditions for service provision, ship technical specifications, safety and environmental requirements and other key aspects of business. Concessions for the performance of public transport in line coastal maritime transport play a key role in maintaining the connection between the coast and the islands in Croatia. The example of Jadrolinija, the national shipping company, illustrates how this system can be crucial for the development, sustainability and quality of maritime transport in the country. It was pointed out that transparency is a key component of the process of awarding concessions to Jadrolinija. Concession award processes in Croatia ensure equality of opportunity for all potential concessionaires, encouraging competition and ensuring a fair process that enjoys public trust. It is also emphasized that concessionaires such as Jadrolinija play a significant role in connecting the island with the coast and improving tourism, which is crucial considering Croatia as a tourist destination. Line coastal maritime transport enables many visitors to explore different parts of the coast and islands and contributes to the economic development of the country through high quality service and increased tourist traffic. The future of concessions in this sector includes modernization, environmental sustainability, innovation and digitization. The use of modern and environmentally conscious ships reduces the negative impact on the environment and provides a pleasant experience for passengers. Digital technologies enable better management of operations and improved user experience. Furthermore, cooperation with the local community and authorities is becoming a key component of future concession awarding processes. The connectivity between coastal cities and islands has a profound social and economic impact on the local population.