What holding company under the parent company Abu Dhabi United Group bases it's identity around the cognomen "city"? 
City Football Group
Title: City FC
Passage: City FC or just City is usually used as short-hand to refer to one of Manchester City F.C., New York City FC or Melbourne City FC, which are all association football clubs owned by the City Football Group, an organisation which bases it's identity around the cognomen "City".
Title: Abu Dhabi Sports
Passage: Abu Dhabi Sports (Arabic: أبوظبي الرياضيّة‎ ‎ ) is an Arabic television station.  It broadcasts from Abu Dhabi, capital of the United Arab Emirates and is owned by Abu Dhabi Media Abu Dhabi Sports Channel is an UAE Arab satellite channel broadcast from Abu Dhabi headed by Yaqoob Al Saadi.
Title: City Football Group
Passage: The City Football Group (CFG) is the holding company established to oversee the creation and administration of a network of linked clubs and other footballing operations.  The company is run as a holding company under parent company the Abu Dhabi United Group (ADUG) along with Chinese part-owners China Media Capital and CITIC Capital.  The company's aim is to own a team on each continent, each with the identifier "City" in its name.
City Football Group City FC