Tata Group is an Indian multinational conglomerate holding company headquartered in Mumbai, Maharashtra, India. It was founded in 1868 by Jamshedji Tata and gained international recognition after purchasing several global companies. It is one of India's largest conglomerates. In 2014-15, the revenue of Tata companies, taken together, was $108.78 billion. These companies collectively employ over 600,000 people.Each Tata company or enterprise operates independently under the guidance and supervision of its own board of directors and shareholders. There are 30 publicly-listed Tata enterprises with a combined market capitalisation of about $134 billion (as on March 31, 2015). Tata companies with significant scale include Tata Steel, Tata Motors, Tata Consultancy Services, Tata Power, Tata Chemicals, Tata Global Beverages, Tata Teleservices, Titan, Tata Communications and Taj Group.
The Tata Group has donated ₹ 2.20 billion ($50 million) to the Harvard Business School (HBS) to build an academic and a residential building on the institute's campus in Boston, Massachusetts. The new building will be called the Tata Hall and used for the institute's executive education programmes. The amount is the largest from an international donor to Harvard Business School.