The master's thesis analyzes the application of data analysis techniques in the pharmaceutical industry using the example of JGL d.d. The thesis explores the importance and benefits of data analysis in the pharmaceutical sector and analyzes the advantages and challenges of its implementation. The introductory part of the thesis includes the subject and objective of the research, data sources, data collection methods, and the research methodology. The main part of the thesis focuses on the example of applying data analysis techniques in JGL d.d. The history of the company, its main products and services are presented, and the data collection process is explained. Data is analyzed in detail, and data analysis techniques are applied to obtain relevant results. The thesis also presents examples of successful application of data analysis in JGL d.d., while also conducting a critical analysis of its implementation in the company. Through the critical analysis, the thesis examines the advantages and disadvantages of applying data analysis in JGL d.d. It emphasizes the need for additional resources, training, and infrastructure to maximize the benefits of data analysis. The conclusion summarizes the key findings of the research. It highlights the importance of applying data analysis techniques in the pharmaceutical sector using the example of JGL d.d. and provides an overview of potential future steps in the application of data analysis in the pharmaceutical industry. Through the application of data analysis, pharmaceutical companies can gain competitive advantages, improve research and development of drugs, personalize therapy, and provide better patient care. The master's thesis provides a comprehensive overview of the application of data analysis techniques in the pharmaceutical industry using the example of JGL d.d. Through detailed data analysis, examples of successful application, and critical assessment, the thesis highlights the importance and benefits of data analysis and provides guidelines for further development and improvement in the pharmaceutical industry.