Tesco is a large British multinational grocery and general merchandise retailer founded in 1919. It has over 6,800 stores across several countries. Porter's Five Forces model was applied to analyze Tesco's competitive environment. Rivalry is high in the grocery industry. Tesco differentiates itself through various store formats and supply chain integration. Supplier bargaining power is mitigated through IT systems and own brand products. Significant capital requirements and brand recognition make entry difficult for new competitors. Loyalty programs and wide product ranges help counter customer bargaining power. Threat of substitutes is addressed by product differentiation and availability.