Citigroup Inc. or Citi is an American multinational financial services corporation headquartered in Manhattan, New York City, New York, United States. Citigroup was formed from one of the world's largest mergers in history by combining the banking giant Citicorp and financial conglomerate Travelers Group on April 7, 1998.
The Washington Kastles, a professional tennis team based in Washington, D.C., are a franchise of the World TeamTennis Pro League and the 2009 WTT Champions. The Kastles entered the World TeamTennis League in 2008 and are owned by Mark Ein. The team is named for Kastle Systems, a security company. The Kastles captured the 2009 King Trophy by defeating Springfield in the WTT Championship on Sunday, July 26, 2009 in Washington, DC. They also captured the 2011 King Trophy by defeating St. Louis in the WTT Championship on Sunday, July 24, 2011 in Charleston, SC.