2013: When public (IPO) and started trading under the symbol QTS on the NYSE.
May 2015: QTS acquires Carpathis Hosting for $326 million.  The transaction increases QTS's ability to serve IaaS and Government clients. Additionally the transaction provides a number of deployments within Equinix facilities. 
QTS maintains three different operational headquarters. The corporate headquarters are in Overland Park, KS. The operational headquarters are in Suwanee, GA. Carpathia headquarters have remained in Dulles, VA to better serve government clients.