This case study examines the crucial role of customer satisfaction in fostering customer loyalty within the retail sector, specifically using Tesco as a prime example. The research delves into the core concepts of customer satisfaction and loyalty, highlighting their significance in driving revenue, enhancing brand credibility, and ensuring business growth. It explores various methods employed by Tesco to elevate customer satisfaction and cultivate lasting loyalty, including an analysis of the company's strategies and their impacts on business performance. The study also investigates the influence of customer satisfaction on improving loyalty and overall business outcomes, supported by data analysis and findings from the research. The methodology includes quantitative research methods with data collected through questionnaires and analyzed using frequency distribution tables, providing valuable insights into the relationship between customer satisfaction and customer loyalty in a real-world business context.