London Stock Exchange Group plc and its subsidiaries engage in the admission of securities to trading, delivery of trading systems, and organization and regulation of markets in securities, as well as provision of associated information services in the United Kingdom. It operates in four segments: Equity Markets, Trading Services, Market Information, and Derivatives. The Equity markets segment enables companies to raise the capital by listing securities on its regulated markets. It provides access to liquid pools of investment capital through its two primary markets, the Main Market and AIM. The Trading Services segment provides the trading platforms used by broking firms to buy and sell securities. Its systems provide access to trading allowing investors and institutions to tap into equity, bond, and derivative markets. The Market Information segment supplies prices, news, and other information to the global financial community. The Derivatives segment provides equity derivatives exchange services. As of March 31, 2007, London Stock Exchange had 3,245 companies traded on its markets, including 1,637 quoted on AIM. The company was founded in 1698 and is based in London, the United Kingdom.