Companies in Mumbai

When Jamsetji Tata dreamed of building India's first integrated steel plant in the 1890s, his family and bankers called it madness — India had no coking coal of its own and no modern steel industry. Tata Steel proved them wrong, pouring its first steel in 1912 in Jamshedpur, a city the company built and still operates today. It is now one of the world's most geographically diversified steelmakers, with operations in India, the Netherlands, and the UK, and group revenue exceeding US$30 billion. The company's modern edge is automotive-grade steel: its Jamshedpur and Kalinganagar plants supply high-strength and galvanized steels to nearly every automaker manufacturing in India, while its Dutch subsidiary is a major European supplier of packaging steel for food cans. It also leads India's push into green steel, with hydrogen-based direct-reduced iron projects under development. For buyers, Tata Steel combines emerging-market cost position with first-world quality systems — its automotive steels are qualified by global OEMs, and its packaging steels dominate Indian food-can production.

Reliance Industries is India's largest company by revenue, founded by Dhirubhai Ambani in 1966 as a textile maker and transformed by his son Mukesh Ambani into a conglomerate spanning petrochemicals, oil refining, retail, and telecommunications. Headquartered in Mumbai, Reliance employs more than 350,000 people and generates annual revenue of roughly US$100 billion. The Jamnagar refinery complex in Gujarat is the world's largest single-site refining operation, processing 1.24 million barrels of crude per day and producing fuels, polymers, and petrochemical feedstocks that are exported to more than 100 countries. Reliance's petrochemical division makes polyethylene, polypropylene, polyester, and elastomers that feed packaging, textile, and automotive supply chains across Asia and beyond. For global buyers, Reliance is a scale supplier of polymers and refined products with consistent export volumes, and its Jio digital platform has made it a technology powerhouse in its own right — relevant for suppliers of telecom and data-center equipment.

Larsen & Toubro, universally known as L&T, is India's largest engineering, procurement, and construction company, founded in 1938 by two Danish engineers, Henning Holck-Larsen and Søren Kristian Toubro. Headquartered in Mumbai, the group employs about 200,000 people and operates across engineering and construction, heavy manufacturing, IT services, and financial services. L&T's heavy engineering arm builds cranes, excavators, process equipment, and precision components at manufacturing facilities in Surat, Hazira, and Kattupalli, supplying both Indian infrastructure projects and export markets. Its construction division is one of the world's largest, delivering metro systems, power plants, refineries, and defense shipyards across the Middle East, Africa, and South Asia. For procurement teams, L&T is a dual-role partner: a major buyer of steel, cement, electrical equipment, and machinery for its EPC projects, and a manufacturer of heavy equipment, valves, and process modules sold to industrial customers worldwide.