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Carrefour S.A. is a French multinational that operates in the retail industry, primarily focusing on hypermarkets, supermarkets, convenience stores, and e-commerce channels. Founded in 1959, Carrefour is headquartered in Massy, France. The company's product offerings include a wide range of consumer goods, including food, electronics, clothing, and household items. Carrefour has a significant presence in Europe, Latin America, and Asia, making it one of the largest retail groups in the world by revenue. The company's competitive strength lies in its extensive global supply chain, broad store network, and commitment to sustainability and innovative retail solutions.

Since its founding in 1962, Walmart has become the world's largest retailer, operating over 10,700 stores globally (including 4,600 namesake locations on its home turf and another 600 Sam's Club outlets) and growing its e-commerce presence, attracting 270 million customers weekly. In aggregate, the firm posted more than $713 billion in fiscal 2026 sales. Its core operations span three reporting segments: Walmart US (68% of fiscal 2026 sales), Walmart International (19%), and Sam's Club (13%).Within the US, nearly 60% of its $486 billion in fiscal 2026 revenue came from its grocery offerings, with another quarter from general merchandise. Internationally, Walmart's operations are concentrated in Mexico, though it also has budding exposure to India.