U: 57 stores

• U-Haul
• U-Top It Frozen Yogurt
• UFC Store
• UGG
• ULTA.com
• UPrinting
• US Appliance
• US Armorment
• US Cavalry
• US Medical Supplies
• US Olympic Shop
• US Search
• US Toy
• USA Beauty Supplies
• USA Florist
• USOUTDOOR
• UShopFast.com
• UgradShop.com
• Ulla Popken
• Ultimate Back Store
• Ultimate Nourishment
• Ultimate Paintball
• UltimateGlobes.com
• Ultra Diamonds
• UltraFragrances.com
• Ultraluster Wash
• Unbeatable Sale
• Uncle Sam's Outfitters
• UnclesGames.com
• Uncommon Goods
• Under Armour
• Undergear
• Underground Station
• Unica Home
• Uniform City
• Unique Photo
• United Airlines
• United Vacuum
• Universal Mania
• Universal Studios Hollywood
• University of Nebraska Press
• UnlockCell
• UpDown
• UpYourRide.com
• Upper Deck
• Upurea
• The Urban Armory
• Urban Minx
• Urban Outfitters
• Urban Scooters
• Us Weekly
• UsedCisco.com
• Userful.com
• Utrecht Art Supplies
• Uxsight.com
• usaprintworx.com
• usbphoneworld