The Kluge Family – $6 Billion.
John Kluge earned his fortune by trading broadcast and cellular properties; such as Metromedia TV stations to News Corp and Hearst. When he passed away in 2010, Kluge actually gave $400 million to help fund financial aid at Columbia University.
The LeFrak Family – $6.6 Billion.
New York City and the tri-state area is home to the largest real estate empires of the LeFrak family. As such, this family boasts of a $6.6 billion net worth over time.