CyrusOne is an American public corporation that owns, operates, and develops enterprise-class, carrier-neutral data centers. CyrusOne is headquartered in Carrollton, Texas and operates 33 data centers across the United States, in the United Kingdom, and in Singapore. Their first data center was based in Houston in 2001. Cincinnati Bell acquired CyrusOne in 2010 and then spun it out in 2013. Cincinnati Bell still owns 9.5 per cent of CyrusOne. In April 2015, CyrusOne announced its acquisition of Cervalis, expanding the company's footprint into the Northeast.