The Tata Group (/ˈtɑːtɑː/) is a group of companies headquartered in Mumbai, India.^[4][5] Established in 1868, it is India's largest conglomerate, with products and services in over 150 countries, and operations in 100 countries.^[6]

There are 29 publicly listed Tata Group companies with a combined market capitalisation of ₹33.2 trillion (US$396 billion) as of 28 July 2024.^[7] Major affiliates include Tata Consultancy Services, Tata Motors, Tata Projects, Tata Power, Titan, Tata Steel, Air India, Indian Hotels Company, Tata Consumer Products, Voltas, Trent, Cromā and BigBasket.^[8]