Most people interact with big companies every day without really thinking about it. The fuel in the car, the app on the phone, the medicine in the cabinet. The largest companies in India sit behind many of these ordinary moments, often without anyone noticing.
That quiet presence is worth paying attention to. These are not just big numbers on a financial report. They employ real people, serve real needs, and reflect how the country has changed over decades.
Here is a look at the 15 biggest among them, ranked by revenue, and what makes each one stand out.
Which Are the Largest Companies in India by Revenue in 2026?
Here is the 2026 list of the largest companies in India. We ranked them by their revenue for 2025-26.
In this blog, we will talk about their sector, their revenue, and their market cap as of the time of writing this blog.
So, without further delay, let’s begin.
| Rank | Company name | Sectors | Revenue (TTM) |
|---|---|---|---|
| 1 | Reliance Industries (RELIANCE.NS) | Energy, chemicals, retail, telecom | ₹10.95 T |
| 2 | Life Insurance Corporation of India (LICI.NS) | Life insurance / financial services | ₹9.85 T |
| 3 | Indian Oil Corporation (IOC.NS) | Oil & gas / refining & marketing | ₹8.49 T |
| 4 | Rajesh Exports (RAJESHEXPO.NS) | Precious metals/jewellery | ₹6.54 T |
| 5 | Oil & Natural Gas Corporation (ONGC.NS) | Oil & gas exploration & production | ₹6.49 T |
| 6 | Bharat Petroleum Corporation (BPCL.NS) | Oil & gas / refining & marketing | ₹4.92 T |
| 7 | Hindustan Petroleum Corporation (HINDPETRO.NS) | Oil & gas / refining & marketing | ₹4.81 T |
| 8 | Tata Motors (TATAMOTORS.NS) | Automotive/vehicles | ₹4.41 T |
| 9 | State Bank of India (SBIN.NS) | Banking & financial services | ₹4.05 T |
| 10 | Larsen & Toubro (LT.NS) | Engineering & infrastructure | ₹2.95 T |
| 11 | HDFC Bank (HDB) | Banking & financial services | ₹2.91 T |
| 12 | Tata Consultancy Services (TCS.NS) | IT services / software | ₹2.80 T |
| 13 | Hindalco Industries (HINDALCO.NS) | Metals & mining (aluminium) | ₹2.79 T |
| 14 | Tata Steel (TATASTEEL.NS) | Metals & mining (steel) | ₹2.39 T |
| 15 | ICICI Bank (IBN) | Banking & financial services | ₹2.32 T |
1. Reliance Industries (RELIANCE.NS)
Reliance is India’s largest private sector enterprise. It maintains its top position through vertical integration, meaning it controls everything from the production of raw oil to the retail stores where consumers shop. Its massive scale in telecommunications (Jio) and retail allows it to generate cash flow from millions of customers every second.
- Revenue: ₹10.95 Trillion
- Market Cap: ₹19.12 Trillion (as of 26 March 2026)
- Sector: Energy, Retail, and Telecommunications
2. Life Insurance Corporation of India (LICI.NS)
LIC is the dominant force in the Indian financial sector. It holds a 57.05% market share in the life insurance sector and manages assets worth nearly ₹60 trillion. Its vast network of agents and decades of trust make it the primary savings vehicle for a significant portion of the Indian population.
- Revenue: ₹9.85 Trillion
- Market Cap: ₹4.94 Trillion (as of 26 March 2026)
- Sector: Insurance and Financial Services
3. Indian Oil Corporation (IOC.NS)
Indian Oil is the nation’s highest-earning government-owned company. It operates nearly half of India’s petroleum product pipelines and a massive network of over 34,000 fuel stations. As these largest companies in India provide the physical infrastructure for movement, their operations remain fundamental to the country’s daily supply chain.
- Revenue: ₹8.49 Trillion
- Market Cap: ₹1.91 Trillion (as of 26 March 2026)
- Sector: Energy (Oil & Gas Refining and Marketing)
4. Rajesh Exports (RAJESHEXPO.NS)
Rajesh Exports is a unique global leader in the gold industry. It processes approximately 35% of the world’s gold and is the only company globally that handles the entire gold value chain, from refining raw gold in Switzerland to manufacturing jewellery and selling it through its own retail showrooms.
- Revenue: ₹6.54 Trillion
- Market Cap: ₹25.07 Billion (as of 26 March 2026)
- Sector: Consumer Goods (Gold and Luxury Items)
5. Oil & Natural Gas Corporation (ONGC.NS)
ONGC is the backbone of India’s energy security. It produces approximately 71% of India’s domestic crude oil and 84% of its natural gas. Managing the country’s underground natural resources provides the essential raw materials that other companies then refine and sell.
- Revenue: ₹6.49 Trillion
- Market Cap: ₹3.38 Trillion (as of 26 March 2026)
- Sector: Energy (Oil & Gas Exploration and Production)
6. Bharat Petroleum Corporation (BPCL.NS)
BPCL operates as a key player in the nation’s energy supply chain. It manages a massive infrastructure of refineries and over 20,000 fuel stations across the country. Refining crude oil and distributing petroleum products ensures a constant flow of energy to transport, aviation, and industrial sectors.
- Revenue: ₹4.92 Trillion
- Market Cap: ₹1.41 Trillion (as of 26 March 2026)
- Sector: Energy (Oil & Gas Refining and Marketing)
7. Hindustan Petroleum Corporation (HINDPETRO.NS)
HPCL maintains a significant presence in the petroleum industry through its extensive refining and marketing network. It operates major refineries in Mumbai and Visakhapatnam and manages a wide-reaching distribution system. Its ability to supply fuel to remote corners of the country keeps the national transport network operational.
- Revenue: ₹4.81 Trillion
- Market Cap: ₹686.91 Billion (as of 26 March 2026)
- Sector: Energy (Oil & Gas Refining and Marketing)
8. Tata Motors (TATAMOTORS.NS)
Tata Motors is a global automotive leader with a presence in over 125 countries. Many of the largest companies in India drive innovation in the transport sector. This one focuses on electric vehicles and luxury brands such as Jaguar Land Rover, cementing its position. It manufactures everything from small passenger cars to heavy-duty commercial trucks.
- Revenue: ₹4.41 Trillion
- Market Cap: ₹3.44 Trillion (as of 26 March 2026)
- Sector: Automobile (Commercial and Passenger Vehicles)
9. State Bank of India (SBIN.NS)
SBI is the largest public sector bank in the country, serving over 480 million customers. It holds a 25% market share in the total loan and deposit market. Because it manages the accounts of nearly one-third of the population, its financial health remains central to the stability of the Indian banking system.
- Revenue: ₹4.05 Trillion
- Market Cap: ₹7.19 Trillion (as of 26 March 2026)
- Sector: Financial Services (Banking)
10. Larsen & Toubro (LT.NS)
L&T is the primary force behind India’s physical infrastructure development. It specializes in mega-projects, including bridges, airports, and power plants. Its engineering expertise allows it to execute complex construction and manufacturing tasks that are vital for the country’s long-term industrial growth.
- Revenue: ₹2.95 Trillion
- Market Cap: ₹4.82 Trillion (as of 26 March 2026)
- Sector: Engineering and Construction
11. HDFC Bank (HDB)
HDFC Bank became a global top-ten bank following its merger with HDFC Ltd. It maintains this position by controlling the largest share of the Indian private-sector credit market. By managing over ₹22 trillion in deposits and a massive retail loan book, it provides the primary capital flow for the country’s housing and consumer sectors.
- Revenue: ₹4.57 Trillion
- Market Cap: ₹11.85 Trillion
- Sector: Financial Services (Banking)
12. Tata Consultancy Services (TCS.NS)
TCS is the largest IT services firm in Asia and the second-largest employer in India’s private sector. It earns its scale by maintaining long-term contracts with 90% of the Fortune 500 companies. Because it leads the largest companies in India in service exports, TCS generates significant foreign exchange by managing the digital backend for global banks and retailers.
- Revenue: ₹2.61 Trillion
- Market Cap: ₹8.60 Trillion
- Sector: Information Technology
13. Hindalco Industries (HINDALCO.NS)
Hindalco is the world’s largest aluminum rolling company and a top producer of primary aluminum in Asia. It achieved this scale through the acquisition of Novelis, which made it the global leader in aluminum recycling. It supplies the high-grade metal required for the world’s beverage cans, automotive bodies, and electrical grids.
- Revenue: ₹2.79 Trillion
- Market Cap: ₹1.58 Trillion
- Sector: Metals and Mining (Aluminium and Copper)
14. Tata Steel (TATASTEEL.NS)
Tata Steel is one of the few steel producers in the world that is fully “backward integrated,” meaning it owns the iron ore mines that feed its plants. This control over raw materials allows it to produce 35 million tonnes of steel annually at a lower cost than its competitors. It provides the essential metal for India’s automotive and construction industries.
- Revenue: ₹2.40 Trillion
- Market Cap: ₹2.45 Trillion
- Sector: Metals and Mining (Steel)
15. ICICI Bank (IBN)
ICICI Bank is the second-largest private lender in India by assets. It maintains its scale through a diversified portfolio that includes insurance, asset management, and investment banking. Its 6,000-branch network and dominant position in the digital payments space allow it to process a significant portion of the country’s daily financial transactions.
- Revenue: ₹2.32 Trillion
- Market Cap: ₹9.01 Trillion
- Sector: Financial Services (Banking)
Conclusion:
The success of these massive organizations is a direct reflection of the nation’s energy and ambition.
By providing the fuel for our cars, the money for our homes, and the materials for our cities, the largest companies in India create the foundation that allows millions of smaller businesses to grow. They act as the steady engine that keeps the country moving, even when global markets feel uncertain.
Looking ahead, these leaders are shifting toward cleaner energy and smarter technology to meet the needs of a new generation.
Because the largest companies in India touch so many lives, their progress is tied to the progress of every citizen. Their story is ultimately about how big ideas and hard work can transform the daily reality for billions of people.
FAQs
1. Which company is the largest in India?
Reliance Industries is currently the largest company in the country based on both its total sales and its overall market value.
2. What is the difference between revenue and market cap?
Revenue is the total money a company brings in from selling its products, while market cap is the total value of all its shares on the stock market.
3. Why are banks so prominent among the largest companies in India?
Banks appear frequently on this list because they manage the savings and loans for millions of people, making them essential to the country’s financial health.
