This research project investigates the impact of cultural diversity on customer satisfaction within the marketplace, using Marks and Spencer (M&S) as a case study. The report begins with a clear definition of the research question, aiming to examine how cultural diversity influences customer satisfaction. The study explores the concept of cultural diversity in business, evaluating its significance within M&S and assessing measures the company can take to promote diversity. The methodology includes a literature review, research questions, and objectives, supported by both primary and secondary research methods. The research employs a deductive approach, utilizing a questionnaire for data collection and a detailed analysis of the research findings. The report also covers the research philosophy, approaches, choice, and strategies, providing a comprehensive overview of the investigation into the impact of cultural diversity on customer satisfaction within a leading multinational retailer.