Abstract
The main goal of the research is to determine the impact of different types of education on the innovativeness of start-up firms that actively operate in the Republic of Serbia. For the collection of primary data, a specially designed questionnaire is used, which is filled out by founders of start-up firms. A total sample includes 121 start-up firms. Multiple regression analysis, reliability analysis and descriptive statistical analysis are conducted. Based on the obtained results, it has been proven that non-formal and informal education has a positive statistically significant impact on the innovativeness of start-up firms, while formal education does not have a statistically significant impact on a given dependent variable. The conducted research and the obtained results have important implications for the scientific and professional public. Firstly, in line to given results managers' attention should be drawn to invest their time in educational activities that are not covered by the formal education program. Additionally, the importance of sharing knowledge among employees in the firms is especially pointed out. Finally, it is important to highlight the guidelines for improving innovativeness in start-up firms to ensure their competitive position in the post pandemic circumstances.