


Employees at AT&T rank John T. Stankey in the Top 10% of CEOs in Dallas. Similarly, employees at T-Mobile rank Mike Sievert in the Top 25% of CEOs in Seattle. Employees rate their CEO differently based on the frequency of interaction, ability to affect company culture, and drive measurable results.

CEO of AT&T
BIO: John T. Stankey (born 1962) is an American businessman who is the former CEO of WarnerMedia (then Time Warner); currently serving as the CEO of the former's parent company, AT&T after previously serving as the president and COO. Stankey led AT&T's acquisition of DirecTV and Time Warner in 2015 and 2018, respectively. He assumed the CEO role of AT&T effective July 1, 2020, succeeding Randall L. Stephenson.

CEO of T-Mobile
BIO: Mike Sievert is president and chief executive officer of T-Mobile and is a member of T-Mobile’s Board of Directors. Mike leads a customer-crazed team of disruptors and innovators, working tirelessly over the last eight years to change the rules of wireless, resulting in T-Mobile becoming the fastest-growing company in the industry. He most recently served as president and chief operating officer of T-Mobile. As CEO, Mike is responsible for leading T-Mobile into the 5G future as it combines operations with Sprint to supercharge the successful Un-carrier strategy. His focus is on ensuring that T-Mobile is the fastest growing company in its space, with the best network and best experiences, delivered by the best team. To do this, Mike and team are all about unlocking the potential of the combined companies’ increased scale, which is expected to result in over $43 billion in synergies, enabling lower costs and the ability to deliver even more to customers, at lower prices. A centerpiece of that focus is building the world’s best 5G network—with massive increases in network capacity and 5G coverage. Every day, Mike’s priority is on cultivating T-Mobile’s culture and building a company that is world-famous for putting customers first, treating them right, and changing the rules in their favor—all with one simple goal: creating the most loved brand in the history of the telecom industry.

Women at AT&T rated their CEO an A+

Women at T-Mobile rated their CEO an A+

Diverse Employees at AT&T rated their CEO an A+

Diverse Employees at T-Mobile rated their CEO an A+




At AT&T, employees in the Admin department rate John T. Stankey the highest. According to employees, John T. Stankey's ability to drive business results is Good. At T-Mobile, the Communications department's employees rate their CEO highest. And, 77% of T-Mobile's employees approve of their CEO's management style.