Leader: Tata Consultancy Services

India-based Tata has 600 agents in the U.S., Mexico and Canada, in addition to more than 3,300 agents in multiple locations in Latin America, Europe and Asia. TCS provides on-site desktop services through 3,879 desktop technicians. TCS supports over 2.54 million users in North America (both service desk and workplace devices), with over 1.6 million contacts handled per year. TCS manages over 931,000 desktops/laptops and 104,000 virtual desktops, and supports 510,000 smartphones and tablets. About 37,000 users are supported via kiosk/café locations.