T-Mobile US (TMUS) is a wireless communications powerhouse that has spent the past decade relentlessly dismantling the wireless status quo — and winning. Operating under the T-Mobile, Metro by T-Mobile, and Mint Mobile brands, the company serves approximately 86 million postpaid and 26 million prepaid phone customers, commanding roughly 30% of the U.S. retail wireless market following its landmark 2020 merger with Sprint and 2025 acquisition of UScellular.
Under CEO Srini Gopalan, T-Mobile is accelerating far beyond wireless, expanding aggressively into fiber through joint venture acquisitions of GoNetspeed and Greenlight Networks as well as i3 Broadband.