India is home to some of the world’s biggest and strongest companies, spread across sectors like technology, banking, energy, telecom, and consumer goods. These companies are valued highly in the stock market because they earn strong profits, serve millions of customers, and keep growing every year. Knowing about India’s most valuable companies helps us understand how the country’s economy is developing and changing.
India has become one of the top 10 contributors to the global market capitalisation of $27.4 trillion. This means Indian companies now form an important share of the total value of listed companies in the world. Even though the global economy faced many ups and downs, India’s stock market continued to grow and stay strong during 2025.
The biggest increase came from Reliance Industries, led by Mukesh Ambani. Its value went up by ₹45,266.12 crore, showing strong performance across many sectors like energy, telecom, retail, and digital services.
Companies like Larsen & Toubro (L&T), HDFC Bank, Bharti Airtel, and ICICI Bank also saw good increases in their stock market value. These gains show confidence from investors in these businesses.
Market capitalisation (or market cap) is a way to measure how much a company is worth in the stock market. It is calculated by multiplying:
Current share price × Number of shares available
So, if a company has a higher market cap, it is considered more valuable in the stock market.
Most Valuable Indian Companies by 2026 highlights the leading businesses in India with the highest market value. These companies play a major role in the country’s economy and reflect the growing strength of India’s stock market.
Here is the list of top-10 most valuable Indian companies by 2026:
| Rank | Company | Market Capitalization (Rs. Trillion) |
| 1. | Reliance Industries | 21.637 |
| 2. | HDFC Bank | 16.832 |
| 3. | Bharti Airtel | 12.854 |
| 4. | Tata Consultancy Services | 11.643 |
| 5. | ICICI Bank | 9.688 |
| 6. | State Bank of India | 9.339 |
| 7. | Infosys | 6.606 |
| 8. | Bajaj Finance | 6.103 |
| 9. | Larsen & Toubro | 5.768 |
| 10. | Hindustan Unilever | 5.576 |
Reliance Industries Limited is the most valuable company in India. It is a large multinational company based in Mumbai. Reliance works in many different sectors such as energy, petrochemicals, natural gas, retail, telecom, entertainment, and textiles. It is the biggest public company in India by market value and revenue. Reliance is also the country’s largest private taxpayer and exporter, contributing a major share to India’s total exports. Its strong business growth makes it one of the world’s leading companies.
HDFC Bank Limited is the second most valuable company in India and one of the country’s leading private sector banks. Headquartered in Mumbai, it provides a wide range of banking and financial services to millions of customers. HDFC Bank is the largest private bank in India by both assets and market value. In 2025, it also became one of the world’s biggest banks, ranking as the 10th largest bank globally by market capitalisation.
Bharti Airtel Limited is the third most valuable company in India and a major global telecom provider based in New Delhi. It operates in several countries across South Asia and Africa. Airtel offers mobile services, 5G and 4G networks, broadband, and voice services. It has also introduced VoLTE services across India. Airtel is the second-largest mobile network operator in India and the world, and is widely recognised as one of India’s most valuable and trusted brands.
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