CyrusOne

Largest data-center campus in Texas, on Chelsea Boulevard

Allen · North Dallas Suburbs · Campus

CyrusOne designs and operates wholesale data centers. Its Allen campus at 2300 Chelsea Boulevard (DFW3, DFW4, and DFW5) is a 90-acre site billed as the largest data-center development in Texas, with nearly a million square feet of technical space at full build-out. Facilities, network, and critical-environment technicians work here; the corporate headquarters is in Dallas, not Allen.