Entrepreneurship is a broad concept and it can be defined in various ways. Summing up scientific views on entrepreneurship, it can be concluded that entrepreneurship is a special economic function of combining production factors and multiplying existing potentials. In addition, entrepreneurship can be seen as a creative process and the transformation of the gift of invention into innovation. It is also a process of self-employment and starting one`s own business, as well as the emergence and development of small businesses. At the beginning of starting their own business, entrepreneurs should decide on the activity they want to engage in and confirm whether they have all the necessary resources to make their vision, idea or innovation come true. The Republic of Croatia can certainly be proud of the situation in the field of sports, given the great successes achieved at European and even world competitions. Moreover, the state should have quality sports infrastructure to strengthen the interests of potential users. In the theoretical part of the dissertation and through various methods it was found that different shortcomings and advances when starting one's business; also, the situation of the sports in the Republic of Croatia and its standings as well as what kind of support the state offers in sport business startups. Having done research on the entrepreneur Kujtim Morin, the founder of the futsal school Uspinjača-Gimka, and conducting a survey among his clients, we noted mutual business satisfaction. Satisfied customers, quality and sustainability of business are important factors in maintaining and expanding business.