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Cablevision Systems
Cablevision Systems
Cablevision head and New York Knicks owner James Dolan
Fortune 500 rank: 321

Cablevision Systems, the New York-centric cable provider, is led with an iron fist by James Dolan, who is also executive chairman of Madison Square Garden Entertainment, which means that he has a management role over the Knicks and Rangers.

Cablevision's founder and Jim's father, Charles Dolan, is still active in the company as its Chairman.

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Last updated May 05 2011: 2:49 PM ET
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