Tata companies operate in seven business sectors: communications and information technology, engineering, materials, services, energy, consumer products and chemicals. They are, by and large, based in India and have significant international operations. The total revenue of Tata companies, taken together, was $70.8 billion (around Rs325-334 crore) in 2008-09, with 64.7 per cent of this coming from business outside India, and they employ around 357,000 people worldwide. The Tata name has been respected in India for 140 years for its adherence to strong values and business ethics. Every Tata company or enterprise operates independently. Each of these companies has its own board of directors and shareholders, to whom it is answerable. There are 28 publicly listed Tata enterprises and they have a combined market capitalization of some $60 billion, and a shareholder base of 3.5 million.