Founder of Switchbox Labs, Inc., G. Michael Sievert is a businessperson who has been at the helm of 5 different companies and presently is President, Chief Executive Officer & Director at T-Mobile US, Inc. and President & Chief Executive Officer of T-Mobile USA, Inc. and President & Chief Executive Officer of Sprint Corp. (both are subsidiaries of T-Mobile US, Inc.).

He is also on the board of Shaw Communications, Inc.

In his past career Mr. Sievert was Chief Executive Officer at Discovery Bay Games, Inc., Principal at Procter & Gamble Co., Vice President-Worldwide Windows Group at Microsoft Corp., Program Director at International Business Machines Corp., Chief Executive Officer for Switchbox Labs, Inc., Chief Commercial Officer of Clearwire Corp., Chief Marketing Officer & Executive Vice President for AT&T Wireless Services, Inc. and Chief Marketing & Sales Officer at E*TRADE Financial Corp.

He received an undergraduate degree from The Wharton School of the University of Pennsylvania.