Thomas Peterffy, Chairman and CEO of Interactive Brokers Group, founded his company about 39 years ago. After a time, a small company has become a global giant of the financial markets. Now, total capital of the company is $5 billion. Interactive Brokers is following its broker and dealer activity, and proprietary trading businesses in more than 100 countries worldwide. This broker has its own dealer agency where IB provides free access trading and clearing service for their institutional and professonal traders. Head office of Interactive Brokers is situated in Greenwich. Also has branches is Connecticut and has about 960 workers in its offices in the USA, Switzerland, Canada and others. Interactive Brokers is regulated by the SEC, FINRA, NYSE, FCA and other regulatory agencies around the world.