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Sirius XM

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Sirius XM

Location: New York, NY
Industry: Media
2007 Sales: $922 million

For satellite radio in the U.S., there is now no other choice following the July 2008 merger of the two former rivals. The merger is an interesting case for law students because it shows how struggling rivals may be given the latitude to create a monopoly until new technologies catch on among consumers. Of course, if the market definition is broadened to include music for businesses, Sirius XM (SIRI) competes with Muzak; if the market is defined as all radio listeners, it has countless competitors.