Leader: HCL Technologies

India-based HCL has historically been an infrastructure-as-a-service provider, and Gartner puts the company in the Leader quadrant. The company has 654 service desk agents in North America, and more than 2,100 in the Philippines, India and Mexico. HCL also provides on-site desktop services through more than 3,600 desktop technicians. It supports over 1 million service desk users, 484,000 desktop users, over 394,000 physical desktops/notebooks, 44,000 virtual desktops, over 213,000 smartphones and tablets, and over 19,000 users via cloud-based DaaS, Gartner said.