Costco Wholesale Corporation, together with its subsidiaries, engages in the operation of membership warehouses in the United States, Puerto Rico, Canada, the United Kingdom, Mexico, Japan, Korea, Australia, Spain, France, Iceland, China, and Taiwan.

BJ's Wholesale Club Holdings, Inc., together with its subsidiaries, operates warehouse clubs on the east coast of the United States. It provides perishable, general merchandise, gasoline, and other ancillary services.

Dollar Tree, Inc. operates discount variety retail stores. It operates in two segments, Dollar Tree and Family Dollar. The Dollar Tree segment offers merchandise at the fixed price of $ 1.25.

Dollar General Corporation, a discount retailer, provides various merchandise products in the southern, southwestern, Midwestern, and eastern United States. It offers consumable products, including paper and cleaning products, such as paper towels, bath tissues, paper dinnerware, trash and storage bags, disinfectants, and laundry products; packaged food comprising cereals, pasta, canned soups, fruits and vegetables, condiments, spices, sugar, and flour; and perishables that include milk, eggs, bread, refrigerated and frozen food, beer, and wine.

Walmart Inc. engages in the operation of retail, wholesale, other units, and eCommerce worldwide. The company operates through three segments: Walmart U.S., Walmart International, and Sam's Club.