Tesco's core business is in Britain, where the company ranks as the largest private sector employer in the United Kingdom and the largest food retailer, operating nearly 1,900 stores. In continental Europe, Tesco operates in the Czech Republic, Hungary, Poland, the Republic of Ireland, Slovakia, and Turkey. In Asia, the company operates in Japan, Malaysia, South Korea, Taiwan, and Thailand. Through Tesco.com, the company ranks as the largest online supermarket in the world. The company also offers financial services through Tesco Financial Services, which controls 4.6 million customer accounts roughly divided between credit cards and car insurance policies. Through the more than 100-unit Tesco Express chain, the company ranks as the largest seller of gasoline in the United Kingdom.
Tesco Is in Private