Tesco plc is a British-based international grocery and general merchandising retail chain. It has the largest British retailer by both global sales and domestic market share with profits exceeding £2 billion. In 2008, Tesco became the world's fourth largest retailer, the first movement among the top five since 2003. Originally specialising in food and drink, it has diversified into areas such as clothing, consumer electronics, consumer financial services, retailing and renting DVDs, CDs, music downloads, Internet service, consumer telecoms, consumer health insurance, consumer dental plans and software.

Formation

During the 1950s and the 1960s Tesco grew organically, but also through acquisitions until it owned more than 800 stores. The company purchased 70 Williamsons stores (1957), 200 Harrow Stores outlets (1959), 212 Irwins stores (1960), 97 Charles Phillips stores (1964) and the Victor Value chain (1968) (sold to Bejam in 1986).

Management and strategy changes

Founder Jack Cohen was an enthusiastic advocate of trading stamps as an inducement for shoppers to patronise his stores. He signed up with Green Shield Stamps in 1963, and became one of the company's largest clients.

In 1973 Jack Cohen resigned and was replaced as Chairman by his son-in-law Leslie Porter. Porter and managing director Ian MacLaurin abandoned the "pile it high sell it cheap" philosophy of Cohen which had left the company "stagnating" and with a "bad image". In 1977 Tesco launched "Operation Checkout" with the abandonment of Green Shield stamps, price reductions and centralised buying for all stores. The result was a rise in market share of 4% in two months.

1980s

In May 1987 Tesco completed its hostile takeover of the Hillards chain of 40 supermarkets in the North of England for £220 million.

1990s

In 1994, the company took over the supermarket chain William Low, successfully fighting off Sainsbury's for control of the Dundee-based firm which operated 57 stores. This paved the way for Tesco to expand its presence in Scotland, which was weaker than in England. In 2006 Inverness was branded as "Tescotown", because well over 50p in every £1 spent on food is believed to be spent in its three Tesco stores.

Tesco introduced a loyalty card, branded 'Clubcard', in 1995 and later an Internet shopping service. As of November 2006 Tesco was the only food retailer to make online shopping profitable. In 1996, the typeface of the logo was changed to the current version with stripe reflections underneath. Terry Leahy assumed the role of chief executive on 21 February 1997, the announcement having been made on 21 November 1995.