Financial institutions have a key role in increasing economic efficiency and overcoming shortcomings in direct financing through financial markets and in the broadest sense it can be said that financial institutions are companies whose assets are mostly in intangible form, i.e. in the form of money, securities and other forms of financial assets. International banking institutions developed after the great world crisis in 1929, with the emergence of the need to eliminate the consequences of the crisis and to influence the reduction of differences in the development of individual countries that participate in international exchange. The Republic of Croatia is a full member of several international financial institutions, with which it develops and carries out cooperation. As a member of international financial institutions, it is important for the Republic of Croatia to strive to achieve added value and benefits from ownership shares and to analyze, in a qualitative manner, the value obtained for the invested money. The World Bank Group is an important international financial institution for the Republic of Croatia, which continuously and comprehensively supports economic and social development and the further development of the market economy and is a significant source of financing and a catalyst for reform adjustments. Cooperation with the World Bank Group has a great, not only financial, but wider meaning for maintaining macroeconomic stability and achieving sustainable economic growth. The financial support and overall role of the World Bank Group is adjusted to the needs of infrastructure construction, structural adjustments and overall development of the Republic of Croatia. The Republic of Croatia uses significant financial resources in the form of investment and structural loans under the most favorable financial conditions that the World Bank Group achieves on the international financial market.