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J Sainsbury plc operates as a major retail company in the United Kingdom, focusing primarily on supermarkets and convenience stores. The company's core business encompasses the sale of groceries, household goods, and related services. It also operates Sainsbury's Bank, which provides financial services, and Argos, a catalog retailer offering a variety of products including electronics and home goods. Founded in 1869 by John James Sainsbury, the company established its first store in London. Sainsbury's headquarters are located in London, England, and it maintains a strong presence across the UK. Its competitive strengths include a wide retail network, a robust online shopping platform, and diversified product offerings through its various retail formats.

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.