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Before joining Syniverse as CFAO in June 2020, Andrew 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 CFO 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 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. He serves on the CTIA Board of Directors. Additionally, Mr. Davies is a Wall Street Journal CEO Council member.

As Chief Information Security Officer (CISO), Justin Dellaportas brings years of cybersecurity experience and leadership. He is responsible for securing Syniverse’s global telecommunications and enterprise messaging network and maintaining the trust of clients around the world. Justin specializes in the strategy and development of cybersecurity organizations and program execution.

Before Syniverse, Justin played a pivotal role with Nielsen, transforming the Cybersecurity organization’s people, processes, and technologies. Earlier in his career, Justin was an engineer working for the global security and aerospace company Lockheed Martin. Justin’s proven track record of maturing organizations' cybersecurity posture, overseeing growth strategies, and creating world-class teams has earned him a well-respected reputation in his field.

Justin holds a bachelor's degree in industrial engineering and a minor in business administration from the University of Central Florida. During his career, he has also earned a GIAC Security Essentials Certification (GSEC) from the SANS Institute and a Lean Six Sigma Green Belt certification. In 2023, he was recognized as one of Tampa Bay Business Journal's "40 Under 40," which spotlights emerging leaders younger than 40 in the Tampa Bay business community.

Bill oversees Syniverse’s legal and corporate governance functions, bringing over 35 years of extensive legal and strategic experience.

During his career, Bill has served as an Assistant United States Attorney, the General Counsel of Verizon Wireless, the head of litigation and enforcement for Verizon Communications, and the General Counsel and Chief Operating Officer for the Philadelphia Museum of Art. He has also been an adjunct professor at the University of Pennsylvania Carey Law School.

Bill is a graduate of the University of Pennsylvania Carey Law School, where he served as the Editor-in-Chief of the University of Pennsylvania Law Review. He also holds an M. Div. from Yale University and B.A. from Ursinus College.

In this pivotal role, Ms. Rosa guides the organization’s global HR team and partners with senior leadership to develop and execute Syniverse’s people and culture strategy. This role encompasses organizational development, human resources, and diversity, equity, and inclusion (DEI) initiatives.

Rosa comes with an extensive background in the financial and banking sector. Most recently, she served as CHRO and Executive Vice President at Santander Consumer USA. Ms. Rosa has a proven track record in HR business partnering, organizational design and talent development, strategic partnership and planning, DEI, talent acquisition, and business transformation.

Ms. Rosa holds a bachelor’s degree in human services and psychology from Judson University. She is on the national board of directors for the Network for Teaching Entrepreneurship (NFTE) and is the 2024 chair-elect for The Concilio, a Dallas-based nonprofit dedicated to building stronger communities by unlocking opportunities for Latino families.

John Wick serves as Chief Product Officer and is responsible for the company’s global product portfolio, including product strategy, research and development, product management, and implementation. Previously, he was Syniverse’s Chief Technology officer overseeing technologies for its Carrier and Enterprise business units and Syniverse’s information technologies. During his career at Syniverse, Mr. Wick has been instrumental in the development and success of core products such as Syniverse Secure Global Access, IPX, messaging, and multiple 3G, 4G, and 5G signaling solutions. Mr. Wick joined Syniverse in 1993 and was initially responsible for managing the network operations department. He has held management positions in operations, research and development, technology, business development, and product management groups. Prior to joining Syniverse, Mr. Wick was a systems integrator with Verizon and, earlier, an electronic communications and switching systems technician for the U.S. Air Force. Mr. Wick graduated with bachelor’s and master’s degrees in business from Nova Southeastern University. He also holds an associate degree in electronic engineering technology from the Community College of the Air Force and is a certified Six Sigma Black Belt. Mr. Wick currently represents Syniverse on the board of the Competitive Carriers Association (CCA) and the Executive Advisory Board of the Innovative Operators (IO) association.

James A. Attwood, Jr. serves as Chairman of the Board of Syniverse. He is currently a Senior Advisor at The Carlyle Group, a global investment firm, whose Carlyle Partners V L.P. fund acquired a controlling stake in Syniverse in 2011. Attwood joined Carlyle in November 2000 and played a key role in leading the firm’s investment activity in the global telecommunications, media, and technology (TMT) industries for two decades. Before joining Carlyle, Attwood was Executive Vice President for Strategy, Development, and Planning at Verizon Communications. At Verizon (and GTE before that), he oversaw all strategic planning, alliances, ventures, corporate strategy, development, and M&A activities. Before his four years at Verizon and GTE, Attwood served as an investment banker at Goldman, Sachs & Co. for 11 years, working in the New York and Tokyo offices. Attwood graduated summa cum laude from Yale University with a BA in applied mathematics and an MA in statistics in 1980. He received JD and MBA degrees from Harvard University in 1985.

Mr. Beebe has served as a director of Syniverse since January 2011. In 2007, Mr. Beebe became the President and Chief Executive Officer of 2BPartners, LLC, a partnership that provides strategic, financial, and operational advice to private equity investors and management, and in 2014 Mr. Beebe became a founding partner of Astra Capital Management, a private equity firm in Washington, D.C. From 1998 to 2007, Mr. Beebe was Group President of Operations at Alltel Corporation, a telecommunications services company. Prior to joining Alltel, Mr. Beebe served as Executive Vice President of Operations at 360°Communications Co., a wireless communications company, from 1996 to 1998. Mr. Beebe also held numerous positions of increasing responsibility at Sprint Corporation, a telecommunications service company, including Vice President of Operations, from 1984 to 1995. Mr. Beebe graduated with honors from Kutztown University in 1981 with a bachelor’s degree in economics and received a master’s degree in economics from Bowling Green University in 1982. Mr. Beebe currently serves as a member of the board of directors of SBA Communications Corporation, a wireless infrastructure company; Skyworks Solutions, Inc., a provider of semiconductors; and Frontier Communications Corporation, a telecommunications provider. Until 2019, Mr. Beebe served on the board of directors of NII Holdings, Inc, a telecommunications company.

Before joining Syniverse as CFAO in June 2020, Andrew 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 CFO 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 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. He serves on the CTIA Board of Directors. Additionally, Mr. Davies is a Wall Street Journal CEO Council member.

Mr. Ranelli has served as a director of Syniverse since January, 2011. From 1981 to his retirement in 2003, he was a partner at PricewaterhouseCoopers, a global network of firms delivering audit, assurance, tax and consulting services, where he held several positions including Audit Partner, Transaction Services Partner, Managing Partner of the Washington D.C. Regional Offices, and Vice Chairman and Global Leader of the Financial Advisory Services practice with operations in 20 countries.

Mr. Ranelli has served as a member of the board of directors of fifteen public and private companies, including K2M Group Holdings, Inc. until 2018. He holds a bachelor’s degree in accounting from Virginia Commonwealth University and has also held executive positions in several charitable and community organizations, including co-chair of the District of Columbia Bicentennial Commission, and received lifetime achievement awards from the Leukemia and National Kidney Associations.