The capital market is the part of the financial market where financial instruments with a maturity of more than one year are traded, and the most well-known such instruments are stocks and bonds. The decision on the capital structure, which includes the decision on the ratio of equity and debt capital, is one of the most important financial decisions in a company. When choosing sources of financing, companies and public institutions can use their own funds (if they have them) or someone else's. The most common form of financing from other sources is borrowing, but entities also have access to financing through the issuance of securities. In the Republic of Croatia, financing through the capital market is largely adjusted to large companies, although there are initiatives of the Zagreb Stock Exchange which adjust financing through the capital market to small and medium-sized enterprises. The Croatian capital market is assessed as underdeveloped with a weak interest of Croatian companies to use the possibility of issuing securities as a source of financing. It was determined that in the period from 2015 to 2019, the most represented bond issuers on the Croatian capital market were the Ministry of Finance and large banks. In general, the most represented issuers on the Zagreb Stock Exchange are from the activities of providing accommodation, preparing and serving food, financial activities and insurance activities, as well as the production of food products, beverages and tobacco products.