The Coxes – $33.6B
The fortune of this family goes back to 1898, which was the year James M. Cox bought the local publication The Dayton Evening News. He gradually expanded it until it turned into a telecom empire with television, cable, radio, and internet holdings. It is now better known as Cox Enterprises. They truly shaped the telecom sector in America during the Internet age. The family acquired DealerTrack as well at some point. It seems they are eager to enter the automotive race as well!

The Coxes – $33.6B