Acxiom competitors

Mr. Russo has served as Calix’s president and chief executive officer since December 2002. As Calix’s president and chief executive officer, Mr. Russo brings substantial expertise and knowledge regarding our business strategy, markets and operations to Calix’s board of directors. He also brings to the Board an extensive background in the telecommunications and networking technology industries. From November 1999 to May 2002, Mr. Russo served as vice president of optical strategy and group vice president of optical networking of Cisco Systems, Inc. From April 1998 to October 1999, Mr. Russo served as president and chief executive officer of Cerent Corporation, which was acquired by Cisco. From April 1995 to April 1998, Mr. Russo served in various capacities, including as chief operating officer, at Xircom, Inc., which was acquired by Intel Corporation. Previously, Mr. Russo served as senior vice president and general manager for the hyperchannel networking group of Network Systems Corporation and as vice president and general manager of the data networking products division of AT&T Paradyne Corporation. Mr. Russo served on the board of directors of Vital Network Services, Inc., a privately-held company delivering network lifecycle services, and Xirrus, Inc., a privately-held company providing products that enable high-performance wireless networks. Mr. Russo attended Swarthmore College and previously served on its board of managers.

Gary B. Smith is a British-American executive, currently serving as the Chief Executive Officer of Ciena, an American telecommunications networking multinational.

LeRoy T. Carlson, Jr., is chairman of United States Cellular Corporation, a publicly traded subsidiary of TDS. Carlson is president and chief executive officer, and a director, of TDS. He is also chairman and a director of TDS Telecommunications Corporation, a wholly owned subsidiary of TDS.

Prior to joining Syniverse as CFAO in June 2020, Mr. Davies served as the CFO of Sprint Corporation from July 2018 until the closing of its merger with T-Mobile USA. Before that, he spent four years serving as Group CFO for Amsterdam-based VEON. Prior to joining VEON, Mr. Davies spent more than a decade with Vodafone Group holding various financial leadership positions in Japan, Turkey, and India, before being named CFO of Verizon Wireless in the U.S., which at the time was a joint venture between Vodafone and Verizon Communications. He started his career with KPMG in Wales before serving in elevated senior finance roles with GE, Honeywell, and the Caudwell Group in both the U.K. and the U.S. Mr. Davies graduated with an honors degree in mathematics from London’s Imperial College of Science, Technology and Medicine, is an Associate of the Royal College of Science and is a Fellow of the Institute of Chartered Accountants in England and Wales.

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.

Atul Jain founded TEOCO Corporation in 1994 with the dream of building a successful business model, not just a successful business. His goal was to build a company that did not compromise its values. Prior to starting TEOCO Corporation, Mr. Jain was with a Silicon Valley firm called TIBCO for seven years. At TIBCO, Mr. Jain's focus was to work with Fortune 500 clients to design and build state-of-the-art software solutions leveraging the company's trademark TIB platform.