EX-21.1 4 copyofcone-20161231xex211.htm EXHIBIT 21.1 Exhibit


Exhibit 21.1

Subsidiaries of the Registrant
(as of December 31, 2016)

Subsidiary Name
State or Country of Incorporation or Formation
CyrusOne GP
Maryland
CyrusOne LP
Maryland
CyrusOne Finance Corp.
Maryland
CyrusOne LLC
Delaware
CyrusOne TRS Inc.
Delaware
CyrusOne Foreign Holdings LLC
Delaware
CyrusOne Government Services LLC
Delaware
Cervalis Holdings LLC
Delaware
Cervalis LLC
Delaware
Cyrus One UK Holdco LLP
United Kingdom
Cyrus One UK Limited
United Kingdom