Tata Consultancy Services (TCS) is an Indian multinational IT services company and subsidiary of Tata Group. It was founded in 1968 and has since grown to become one of the largest IT services providers globally, serving clients in 46 countries. TCS pioneered the offshore outsourcing model and created tools to automate the Y2K conversion process. It has achieved several major milestones, such as becoming the first India-based company to exceed a market capitalization of $80 billion and revenue of over $10 billion annually.