• American Telephone & Telegraph Inc.
  • CenturyLink Technology Solutions
  • DuPont Fabros Technology Inc.
  • Equinix Inc.
  • Global Switch Corp.
  • NTT Data Corp.
  • China Telecom Corporation Ltd
  • Rackspace Inc.
  • SunGuard Availability Services
  • Verizon Communication Ltd
  • Digital Realty Trust