Costco Wholesale Corporation, together with its subsidiaries, engages in the operation of membership warehouses in the United States, Puerto Rico, Canada, Mexico, Japan, the United Kingdom, Korea, Australia, Taiwan, China, Spain, France, Iceland, New Zealand, and Sweden. The company offers branded and private-label products in a range of merchandise categories. It offers merchandise, such as sundries, dry groceries, candies, coolers, freezers, deli, liquor, and tobacco; appliances, electronics, health and beauty aids, hardware, lawn and garden, sporting goods, tires, toys and seasonal products, office supplies, automotive care products, postages, tickets, apparel, small appliances, furniture, domestics, housewares, special order kiosks, and jewelry; and meat, produce, service deli, and bakery products. The company also operates gasoline, pharmacies, optical, food courts, hearing-aid centers, and tire installation centers; and offers business delivery, travel, grocery, and various other services online. It also operates e-commerce websites. The company was formerly known as Costco Companies, Inc. and changed its name to Costco Wholesale Corporation in August 1999. Costco Wholesale Corporation was founded in 1976 and is based in Issaquah, Washington.

The Kroger Co. operates as a food and drug retailer in the United States. The company operates combination food and drug stores, multi-department stores, marketplace stores, and price impact warehouses. Its combination food and drug stores offer natural food and organic sections, pharmacies, general merchandise, pet centers, fresh seafood, and organic produce; and multi-department stores provide apparel, home fashion and furnishings, outdoor living, electronics, automotive products, and toys. The company's marketplace stores offer full-service grocery, pharmacy, health and beauty care, and perishable goods, as well as general merchandise, including apparel, home goods, and toys; and price impact warehouse stores provide grocery, and health and beauty care items, as well as meat, dairy, baked goods, and fresh produce items. It also manufactures and processes food products for sale in its supermarkets and online; and sells fuel through fuel centers. The Kroger Co. was founded in 1883 and is based in Cincinnati, Ohio.

Grocery Outlet Holding Corp. operates as a retailer of consumables and fresh products sold through independently operated stores in the United States. Its stores offer products in various categories, such as dairy and deli, produce, floral, fresh meat, seafood products, grocery, general merchandise, health and beauty care, frozen food, beer and wine, and ethnic products. The company was founded in 1946 and is headquartered in Emeryville, California.

United Natural Foods, Inc., together with its subsidiaries, distributes natural, organic, specialty, produce, and conventional grocery and non-food products in the United States and Canada. It operates in two segments, Wholesale and Retail. The company offers grocery and general merchandise, produce, perishables and frozen foods, wellness and personal care items, and bulk and foodservice products. It also provides nuts, dried fruit, seeds, trail mixes, granola, natural and organic snack items, and confections under the Woodstock Farms Manufacturing name; organic, non-GMO project verified, and specialty food and non-food items under the Blue Marble brand name; pet food under the WILD HARVEST brand name; and various products under the ESSENTIAL EVERYDAY, SHOPPERS VALUE, Field Day, EQUALINE, CULINARY CIRCLE, and STONE RIDGE CREAMERY brand names. In addition, the company provides home, health and beauty care, and pharmacy products, as well as private label products through a network of Cub Foods and Shoppers retail grocery stores; and retail store support, pricing strategy, shelf and planogram management, advertising, couponing, ecommerce, consumer convenience, store design, equipment sourcing, electronic payments processing, network and data hosting, point-of-sale hardware and software, automation tools, sustainability, and administrative back-office solution services, as well as professional services. Further, it offers consumer and trade marketing programs, and programs to support suppliers in understanding its markets. The company serves chains, independent retailers, and supernatural chains, as well as ecommerce, foodservice, conventional military business, and other sales customers. United Natural Foods, Inc. was founded in 1976 and is headquartered in Providence, Rhode Island.

Ingles Markets, Incorporated, together with its subsidiaries, operates a chain of supermarkets in the southeast United States. It offers food products, including grocery, meat and dairy products, produce, frozen foods, and other perishables; and non-food products, which include fuel centers, pharmacies, health and beauty care products, and general merchandise, as well as private label items. The company owns and operates a milk processing and packaging plant that supplies organic milk, fruit juices, and bottled water products to other retailers, food service distributors, and grocery warehouses. In addition, it provides home meal replacement items, delicatessens, bakeries, floral departments, and greeting cards, as well as broad selections of local organic, beverage, and health-related items. The company operates under the Ingles and Sav-Mor brand names. Ingles Markets, Incorporated was founded in 1963 and is headquartered in Asheville, North Carolina.

SpartanNash Company distributes and retails grocery products in the United States of America. It operates through Wholesale and Retail segments. The Wholesale segment offers grocery products and perishable food products, including dry groceries, produce, dairy products, meat, delicatessen items, bakery goods, frozen food, seafood, floral products, general merchandise, beverages, tobacco products, health and beauty care, and pharmaceutical products to independent retailers, national accounts, food service distributors, e-commerce providers, and corporate owned retail stores. This segment offers various support services to independent retailers. The Retail segment operates retail stores, fuel centers, and pharmacies primarily under the banners of Family Fare, Martin's Super Markets, D&W Fresh Market, VG's Grocery, Family Fresh Market, Supermercado Nuestra Familia, Forest Hills Foods, Dillonvale IGA, and Fresh City Market. It supplies private brand products to military commissaries. The company was formerly known as Spartan Stores, Inc. and changed its name to SpartanNash Company in November 2013. SpartanNash Company was founded in 1917 and is headquartered in Grand Rapids, Michigan.

Village Super Market, Inc. engages in the operation of a chain of supermarkets in the United States. It offers grocery, meat, produce, dairy, deli, seafood, prepared food products, and bakery and frozen food products. The company also provides non-food products, including health and beauty care, general merchandise, liquor, and pharmacy products. It operates its supermarkets under the ShopRite and Fairway banners, and specialty markets under the Gourmet Garage banner, as well as operates online stores through shoprite.com, fairwaymarket.com, and gourmetgarage.com, as well as ShopRite app, Fairway app, and Gourmet Garage app. The company was founded in 1937 and is based in Springfield, New Jersey.

AMCON Distributing Company, together with its subsidiaries, engages in the wholesale distribution of consumer products in the Central, Rocky Mountain, and Mid-South regions of the United States. It operates in two segments, Wholesale Distribution and Retail Health Food. The Wholesale Distribution segment distributes consumer products, including cigarettes and tobacco products, candy and other confectionery, beverages, groceries, paper products, health and beauty care products, frozen and refrigerated products, and institutional foodservice products. It serves retail outlets, such as convenience stores, discount and general merchandise stores, grocery stores, drug stores, liquor stores, tobacco shops, and gas stations; and institutional customers, including restaurants and bars, schools, and sports complexes, as well as other wholesalers. This segment also markets private label lines of water, candy products, batteries, and other products. The Retail Health Food segment is involved in the retail of natural, organic, and specialty foods consisting of produce, baked goods, frozen foods, nutritional supplements, personal care items, and general merchandise. Further, it operates retail health food stores under the Chamberlin's Natural Foods, Akin's Natural Foods, and Earth Origins Market brands. The Company was incorporated in 1986 and is based in Omaha, Nebraska.