J. Lyons & Co. was a British restaurant chain store, food manufacturing, and hotel conglomerate founded in 1884 by Joseph Lyons and his brothers in law, Isidore and Montague Gluckstein. Lyons’ first teashop opened in Piccadilly, London in 1894, and from 1909 they developed into a chain of teashops, with the firm becoming a staple of the High Street in the UK. At its peak the chain numbered around 200 cafes. The teashops provided for tea and coffee, with food choices consisting of hot dishes and sweets, cold dishes and sweets, and buns, cakes and rolls.

A chain store or retail chain is a retail outlet in which several locations share a brand, central management and standardized business practices. They have come to dominate the retail and dining markets and many service categories, in many parts of the world. A franchise retail establishment is one form of a chain store. In 2005, the world's largest retail chain, Walmart, became the world's largest corporation based on gross sales.