AT&T

2015 Revenue: $163.8 billion

Well aware that entertainment and the internet are becoming almost one and the same, AT&T(t, +1.14%) has gone on a mega-merger spree in recent years to keep up. In 2015, it acquired DirecTV for about $49 billion. This year, it should complete an acquisition of Time Warner for $85 million, assuming the deal is not blocked for antitrust reasons. Revenue rose 11.6% in 2016, but profits dropped 2.8%, and the company’s total number of customers in the video segment fell 186,000.