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Comcast CEO Brian Roberts
Fortune 500 rank: 66

Comcast is headed up by Brian Roberts, whose father Ralph Roberts is a co-founder of the cable giant, along with Daniel Aaron and Julian Brodsky.

Initially called American Cable Systems, Comcast has made major strides in customer service, which helped it receive high marks on our recent customer service Twitter test.

NEXT: Hess Corporation
Last updated May 05 2011: 2:49 PM ET
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