Vodafone Group plc is a British multinational telecommunications company headquartered in London and with its registered office in Newbury, Berkshire. It is the world’s 3rd-largest mobile telecommunications company measured by both subscribers and 2013 revenues (behind China Mobile), and had 434 million subscribers as of 31 March 2014. Vodafone owns and operates networks in 21 countries and has partner networks in over 40 additional countries. Its Vodafone Global Enterprise division provides telecommunications and IT services to corporate clients in over 65 countries. Vodafone has a primary listing on the London Stock Exchange and is a constituent of the FTSE 100 Index. It had a market capitalisation of approximately £89.1 billion , the third-largest of any company listed on the London Stock Exchange. It has a secondary listing on NASDAQ.