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Maplebear (Instacart) is a grocery-focused delivery marketplace that connects national and regional grocers with consumers and couriers, and consumers with their favorite stores. Its app provides on-demand convenience for consumers, lets couriers earn income, and helps grocers scale through digital channels. The marketplace gathers valuable consumer behavior data, attracting consumer-packaged-goods advertisers that seek to reach consumers at the point of purchase. With approximately 600,000 shoppers and 2,200 retail partners, Instacart delivers to about 98% of households in the United States and Canada.

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.