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Distribuidora Internacional de Alimentación S.A. (DIA) is a multinational supermarket and food retail company headquartered in Madrid, Spain. The company operates a network of discount grocery stores providing a wide range of consumer goods, including fresh produce, packaged food, household products, and personal care items. Founded in 1979, DIA has expanded its operations primarily within Europe and Latin America, with a substantial presence in Spain, Portugal, Brazil, and Argentina. The company focuses on offering competitive pricing and private label products, which form a significant part of its sales. DIA distinguishes itself by leveraging a franchising model that extends its market reach and adapts to local consumer needs.

Founded in 1983, Costco Wholesale now operates a global chain of membership-based warehouse clubs, delivering high-quality goods and services at consistently low prices. As of its most recent fiscal year, Costco operated approximately 940 warehouses, serving more than 84 million members across its three geographic segments: Costco US (approximately 73% of total revenue), Costco Canada (13%), and Costco International (14%).Costco's core value proposition—quality products at unbeatable prices—has yielded consistently strong member renewal rates (92% in the US and Canada and nearly 90% internationally). About 55% of Costco's fiscal 2025 revenue came from its grocery offerings, and another 25% from general merchandise.