Delaware has no securities exchanges. There are over 487 broker and dealer firms in the state, with over 2,500 employees. A total of 39 registered investment advisory organizations operate in Delaware. The state is home to nine NASDAQ companies, and is the incorporator of over 910 NYSE listed companies (the most of all states). The top five companies in 2000 according to revenue are; GM, Wal-Mart, Ford, Citigroup, and Boeing.