A large share in the structure of the economy of the Republic of Croatia consists of small and medium-sized enterprises with three quarters of employees in business entities. It is important to provide the initiators of the economy with adequate assistance and support during business operations in order to generate new jobs, increase production, exports, revenues and growth of gross domestic product. The role of consultants working with small and medium-sized enterprises is to evaluate the specific needs of entrepreneurs and find an appropriate solution to the difficulties in which the companies find themselves. They work to strengthen the capacity and competitiveness of companies in the market. In the Republic of Croatia, the consulting market is divided into entrepreneurial support institutions and private consulting companies. 490 units of entrepreneurial infrastructure are registered in the Unified Register of Entrepreneurial Infrastructure. Entrepreneurial support institutions are economic entities whose purpose is to create a quality entrepreneurial environment and implement programs for the development of entrepreneurship. We split them into categories: development agencies, business centers, business incubators, business accelerators, business parks, science and technology parks, competence centers and free zones. The aim of this thesis is to describe the infrastructure of entrepreneurial support institutions in the Republic of Croatia, and to make a brief overview of the services they provide to companies. In the practical part of the paper, on the example of the Center for Entrepreneurship Osijek, the goal is to analyze the capacity of the organization and check how these capacities are aligned with the needs of entrepreneurs seeking advice in the entrepreneurial support institution.