This report provides a comparative analysis of the corporate-level and diversification strategies employed by Walmart and Amazon. It begins with an introduction to both companies, highlighting their founding and evolution. The report delves into strategic management, defining its key components and the importance of adapting to business environment changes. It then examines Walmart's strategic management styles, including value chain analysis, public relations, and single business strategies. The report further explores Amazon's strategic approach, characterizing it as concentrated broadening and emphasizing its cost leadership and customer-centric model, using the Ansoff matrix for illustration. The diversification strategies of both companies are then discussed, showcasing the diverse subsidiaries and services offered by Walmart and Amazon's expansion into various product categories. The report concludes by referencing key sources that support the analysis, providing a comprehensive overview of the strategic approaches of these two retail giants.