By Tharin Pillay December 22, 2024 7:00 AM EST (Each year, TIME recognizes 100 companies that are revolutionizing the world. Apply now to have your company reviewed by our editors.) At the end of 2012, T-Mobile US was not in a good place. With a market cap of less than $6 billion, it was in distant fourth place relative to competitors like AT&T and Verizon. The company’s trajectory changed in 2013, when it rebranded as the “un-carrier,” seeking to distinguish itself from competitors by offering