Global Signal competitors

John Stankey assumed the role of CEO in July 2020 after previously serving as president and chief operating officer. With more than $180 billion in 2019 revenues, AT&T is one of the world’s largest companies in technology, media and telecom. It has delivered 36 consecutive years of quarterly dividend growth. And between 2015 and 2019, AT&T invested more than $135 billion in its network, including capital investments and acquisitions of spectrum and operations. Over that same period, the company invested more in the U.S. than any other public company. John’s leadership drives AT&T to deliver on its purpose to create connections with each other, with what people need to thrive in their everyday lives, and with the stories and experiences that matter. AT&T’s market focus is as a broadband provider, a software-based entertainment provider, and a creator of content that drives engagement. The company is undergoing a significant transformation initiative to ensure all the company’s business units are well-positioned for continued success into the next decade and beyond. AT&T Communications is a global leader in communications with nearly 135 million U.S. mobile, broadband and pay-TV customers, as of Q1 2020, and nearly 3 million business customers, from the smallest companies to nearly all the Fortune 1000. WarnerMedia is a leading media and entertainment company that creates and distributes popular content from a diverse array of storytellers and journalists through its industry-leading consumer brands including HBO, HBO Max, Warner Bros., TNT, TBS, truTV, CNN, DC Entertainment, New Line, Cartoon Network, Adult Swim, Turner Classic Movies and others. WarnerMedia also includes Xandr, which is focused on creating a better solution for advertisers and publishers to reach specific audiences at scale in trusted, premium content environments. AT&T Latin America provides pay-TV services across 10 countries and territories in Latin America and the Caribbean and wireless services to consumers and businesses in Mexico. John joined AT&T in 1985 and has 35 years of accomplished leadership spanning nearly every area of AT&T’s business. He has served in a variety of roles including CEO of WarnerMedia; CEO of AT&T Entertainment Group; Chief Strategy Officer; Chief Technology Officer; CEO of AT&T Operations; and CEO of AT&T Business Solutions. John holds a B.B.A. in Finance from Loyola Marymount University and an M.B.A. from UCLA. In addition to serving on AT&T’s board of directors, he serves on the board of directors of UPS.

Lyons is a proven technology executive with an extraordinary track record of successfully scaling businesses and creating enterprise value through strategic revitalization, improved profitability, and revenue growth. At Alert Logic, he led the company through a multi-year strategic reposition that resulted in becoming a global leader in cybersecurity, specifically in managed threat detection and response. Prior to Alert Logic, Lyons held executive positions at Connexions Loyalty/Affinion Group, Ascend Learning, and Stream Global Services.

Greg Brown (born 26 February 1943) is a former Australian rules footballer who played with Essendon in the VFL during the 1960s.

Hans Vestberg (born 23 June 1965) is a Swedish businessman and CEO of Verizon Communications, where he has worked as executive vice president of the company's network and technology team, and as chief technology officer. Vestberg was previously the CEO of telecommunications company Ericsson, president of the Swedish Olympic Committee, and chairman of the Swedish Handball Federation.

Frank Plastina was appointed President and CEO of Tekelec in February 2006. He brings more than 19 years of senior executive and management experience in the telecommunications industry with companies including Proxim Corporation, Warburg Pincus LLC and Nortel Networks Corporation. Prior to joining Tekelec, Mr. Plastina was executive in residence at Warburg Pincus, where he was responsible for evaluating potential investments and providing executive support to its portfolio companies. Previously, Mr. Plastina was executive chairman of Proxim, a provider of Wi-Fi and broadband wireless access products. During Mr. Plastina’s 15-year career at Nortel, he held a series of executive-level positions in the company’s Wireless, Internet Service Providers, Signaling Solutions, Mergers & Acquisitions and Finance Groups. Most recently, he was president of Nortel’s multi-billion dollar Metro and Enterprise Networks business unit, in which he led the successful development and marketing of the company’s VoIP products to service providers, enterprises and government entities.

Eric D. Stonestrom joined Airspan as Executive Vice President and Chief Operating Officer in January 1998. In May 1998, he was named President and Chief Executive Officer, as well as a member of the Board of Directors. From 1995 to January 1998, Mr. Stonestrom was employed by DSC Communications Corporation, a provider of telecommunications equipment and services (“DSC”), as a Vice President of operating divisions, including the Airspan product line. From 1984 until 1995, Mr. Stonestrom worked at telecommunications corporations Bell Laboratories and AT&T in a variety of positions. He received B.S., M.S. and M. Eng. degrees in 1982, 1983 and 1984, respectively, from the College of Engineering at the University of California at Berkeley. Eric D. Stonestrom is a founding member of Airspan.