In conducting the financial analysis of the company, the basic financial statements are used, which the selected company is legally required to publish at the end of each business year in order to truthfully present the course of business and achieved business results. Financial statements show a lot of useful and important information, but to perform a more detailed analysis, additional tools are needed. Therefore, in conducting financial analysis, financial indicators are often used, i.e. six groups of indicators, as well as vertical and horizontal analysis. Every one of the mentioned methods has its own specific rules of use, and the final results of the conducted analysis contribute useful information to interested parties. The company Koestlin d.d., a company that is very popular on the Croatian market and whose products are well known, was chosen for the analysis. The company belongs to the food industry and was founded more than a hundred years ago. The analysis was conducted in the period between 2017 and 2021 using the financial statements published by Koestlin. The analysis includes the use of financial indicators, as well as vertical and horizontal analysis. Also, a short market analysis is carried out between selected companies in order to gain a more detailed insight into the operations of Koestlin d.d. The paper places additional emphasis on the impact of the pandemic caused by the COVID-19 virus. Conclusions about the impact of the pandemic are made on the basis of the results obtained from the analysis. The research provides an answer to five research questions, the role of which is to solve the research problem and to provide an overall detailed answer to the set topic of the work.