TCS, short for Tata Consultancy Services, makes money primarily by providing IT to a global clients. here’s a breakdown of their business model.

• IT Services and Solutions : This is their bread and butter. They offer a wide range of services including software development and maintenance, IT consulting, system integration, and business process outsourcing. They focus on developing and maintaining applications for clients, essentially acting as an external IT department.
• Focus on Big Clients: TCS targets large corporations, particularly those in the Fortune 500. They have a strong presence in the Banking, Financial Services and Insurance (BFSI) sector. By catering to big companies, they can secure large contracts that bring in significant revenue.
• Global Reach: TCS has a global presence with offices in over 45 countries. This allows them to tap into a wide market and serve clients across the world.

Here are some additional points to consider :

• Alliances and Partnerships: TCS forms strategic alliances with other technology companies to expand their service offerings and reach.
• Focus on Efficiency: They’ve developed a delivery model known as the Global Network Delivery Model which emphasizes efficiency and cost-effectiveness in project execution.

Overall, TCS leverages its expertise in IT services, targets large clients globally, and strives for efficient project delivery to be major player in the IT services industry.