TCS provides IT services, consulting and business solutions, offering an integrated portfolio across applications, digital transformation, AI, data and cloud, engineering, operations, cyber security, and products and platforms.

TCS operates across North America, Latin America, the United Kingdom, Continental Europe, Asia Pacific, India and Middle East & Africa, with operations in 54 countries .

As on March 31, 2025, the company had 52 subsidiaries; there were no associates or joint ventures as defined under the Companies Act, 2013.