Characteristic of modern times, known as a knowledge-based economy, is to recognize the importance of intellectual capital, which is increasingly playing a leading role in the creation of enterprise value. This fact, however, is not reflected in traditional reporting, which limits its usefulness to assess the financial situation of enterprises. The first part of this paper contains a discussion on intellectual capital as a specific resource company with its placement in the company's balance sheet. The second part presents the results of measuring the level of that capital for companies listed on the Warsaw Stock ExchangeZnamienne dla współczesnych czasów, określanych mianem gospodarki opartej na wiedzy, jest dostrzeżenie znaczenia kapi...