The Tata logo was designed to signify fluidity and may also represent a fountain of knowledge or tree of trust. The Tata group expanded significantly under Jehangir Ratanji Dadabhoy Tata after he took over leadership in 1938, establishing companies such as Tata Chemicals, Tata Motors, Tata Industries, Voltas, Tata Tea, and Tata Consultancy Services. Tata group of industries is India's largest business group, operating in over 80 countries with diverse businesses in 7 sectors and over 357,000 employees.