The EuroCC success story booklet for 2024 has been released. It provides an overview of successful experiments conducted in 19 European countries using cutting-edge supercomputers provided by EuroHPC. It also showcases successful collaborations among different countries in the fields of high-performance computing, high-performance data analysis, and artificial intelligence. The success stories are categorized by topic, including natural sciences, aeronautics, environment, energy, agriculture, pharmacy, medicine, manufacturing, engineering, finance, and mobility. Each story presents unique challenges, solutions, and business impacts and benefits.