Contact Sales

Leadership Team

Syniverse Team

– President and Chief Executive Officer
Stephen C. Gray

A member of the Syniverse Board of Directors since January 2011, Stephen C. Gray serves as the company's President and Chief Executive Officer. With more than 25 years of experience in the telecommunication industry, Mr. Gray is the Founder of Gray Venture Partners, LLC, and he serves as the Chairman of ImOn Communications, LLC, SecurityCoverage, Inc., Involta, LLC, and HH Ventures, LLC (d/b/a, ReadyMobile). In addition to Syniverse, he is a member of the Board of Directors for CommScope, which is a portfolio company of The Carlyle Group, one of the world's premier and most successful private equity firms. Mr. Gray also previously served as an Operating Executive with Carlyle's Global Telecommunications, Media and Technology Group. Previously, Mr. Gray served in leadership positions at McLeodUSA, MCI, and TelecomUSA. Mr. Gray earned his Bachelor of Business Administration from the University of Tennessee. In 2014, he was recognized for his leadership in mobile by being named a member of the prestigious Global Telecoms Business Power 100 list and appointed to the CTIA-The Wireless Association's executive committee.

– General Counsel and Senior Vice President
Laura E. Binion

Laura E. Binion joined Syniverse as general counsel and senior vice president in June 2008. She brings more than 25 years of experience in corporate legal affairs to Syniverse. Most recently, she served as executive vice president and general counsel for CheckFree Corporation, a leading provider of financial electronic commerce services and products that was acquired in December 2007 by Fiserv Inc. Ms. Binion also held key roles with Verizon Wireless, GTE Wireless and Contel Cellular. She earned her law degree from the University of Georgia School of Law and her bachelor's degree in political science from the University of Georgia.

– Chief Corporate Relations Officer and Chief of Staff
Mary Clark

As Chief Corporate Relations Officer and Chief of Staff, Mary Clark leads Syniverse’s global external and internal communications, which includes managing all public relations functions and serving as the company’s primary spokesperson, and she also oversees cross-functional alignment across Syniverse’s business. Previously, she was Chief Marketing Officer and also served as Senior Vice President, Next-Generation Roaming Services and Standards, and Senior Vice President, Roaming. Prior to joining Syniverse, in a career in mobile that has spanned more than 20 years, she held several executive-level positions at MACH, CTIA-The Wireless Association, Cibernet and Cellular One. Within the mobile industry, Ms. Clark is an Associate Director for the Competitive Carriers Association, is on the board for CTIA Wireless Foundation, and also serves on the CMO Council North America Advisory Board. She also speaks frequently on industry topics and has presented at such conferences as Mobile World Congress, and her insights have been featured in such publications as Global Telecoms Business. Among her many accolades, Ms. Clark most recently was named to the National Diversity Council’s “Top 50 Most Powerful Women in Technology” list in 2016 and 2017, and Mobile Marketer’s “Mobile Women to Watch 2016” list. She holds a Bachelor of Arts in communications from the University of Delaware.

– Chief Operating Officer
Tim Moss

Tim Moss is Syniverse’s Chief Operating Officer and leads the company’s global strategy, sales and operations. Mr. Moss brings over 25 years of experience in executive-level positions in the technology industry, at both large companies as well as startups and entrepreneurial ventures. Prior to Syniverse, he served as Founder and CEO of IMG Venture Group, and led the growth and development of rising companies. Before this role, Mr. Moss was Senior Vice President, Head of Engagement Practices, North America, at Ericsson for five years, and he led the launch of a new organization responsible for the development of new sales channels and customer services. Previously, he founded and was CEO for Integrity Management Group, a technology and operations consulting firm, which he led for 10 years, and, earlier, he held several C-level and other executive positions at technology companies including InComm, PRE Solutions, Daleen Technologies, Powertel and InterCel. Mr. Moss holds a bachelor’s degree in political science from Texas A&M University.

– Chief Human Resources Officer
Norris Powell

Norris Powell was appointed Chief Human Resources Officer (CHRO) in January 2017 and oversees Syniverse’s 2,300-plus employees at locations in over 30 countries around the world. In leading Syniverse’s global human resources organization, Mr. Powell brings more than 20 years of experience in senior leadership positions. Before Syniverse, he most recently served as Vice President of Human Resources at CSM Bakery Solutions, a provider of bakery ingredients, finished products, and services with 8,500 employees. In addition, Mr. Powell previously served as Corporate Vice President of Human Resources at B/E Aerospace, and in senior human resources roles with Acergy (now SubSea 7), and Alstom. Mr. Powell is a graduate of De Montfort University in the U.K. and holds a degree in human resources management.

– Chief Financial Officer
Bob Reich

Robert (Bob) Reich joined Syniverse in 2015 and serves as the company’s Chief Financial Officer. Mr. Reich brings more than 25 years of financial management experience and has held a number of senior positions with leading private-equity sponsored and public companies. He most recently was Senior Vice President and Chief Financial Officer of Hawaiian Telcom Communications, leading all aspects of financial operations for the company. Mr. Reich has served in numerous financial leadership positions, including roles with McLeodUSA, Wisconsin Central Transportation Corporation, and Deloitte & Touche. He is a certified public accountant and holds a bachelor’s degree in business administration from Carthage College.

– Chief Technology Officer
Chris Rivera

Chris Rivera serves as Syniverse’s Chief Technology Officer, responsible for the company’s global research and development, digital/cloud transformation, network and data center design and operations, cyber security, and information technology (IT). His career includes more than 24 years of leadership roles in technology operations, product management, and product marketing for technology companies and government institutions. Most recently, Mr. Rivera served in a variety of senior roles at Cisco Systems, including Managing Director, Chief Technology Officer, Americas Mobile and Web Providers; Senior Director, Product Line Management, Routing Technology Group; and Director, Product Line Management, Optical Networking. Prior to Cisco, he was a Product Manager at Cerent Corporation (acquired by Cisco in 1999), as well as a Marketing Manager at DSC Communications (acquired by Alcatel in 1998), and he served on the Advisory Board of Joyent, a cloud services company (acquired by Samsung in 2016). He began his career as an Operations and Electronic Systems Officer in the U.S. Navy, for which he served for five years and last held the rank of Lieutenant. Mr. Rivera has a bachelor’s degree from the U.S. Naval Academy and completed coursework at the University of California at San Diego.

Board of Directors

– President and Chief Executive Officer
Stephen Gray

A member of the Syniverse Board of Directors since January 2011, Stephen C. Gray serves as the company’s President and Chief Executive Officer. With more than 25 years of experience in the telecommunication industry, Mr. Gray is the Founder of Gray Venture Partners, LLC, and he serves as the Chairman of ImOn Communications, LLC, SecurityCoverage, Inc., Involta, LLC, and HH Ventures, LLC (d/b/a, ReadyMobile). In addition to Syniverse, he is a member of the Board of Directors for CommScope, which is a portfolio company of The Carlyle Group, one of the world’s premier and most successful private equity firms. Mr. Gray also previously served as an Operating Executive with Carlyle’s Global Telecommunications, Media and Technology Group. Previously, Mr. Gray served in leadership positions at McLeodUSA, MCI, and TelecomUSA. Mr. Gray earned his Bachelor of Business Administration from the University of Tennessee. In 2014, he was recognized for his leadership in mobile by being named a member of the prestigious Global Telecoms Business Power 100 list and appointed to the CTIA-The Wireless Association’s executive committee.

– Chairman of the Board
James A. Attwood

James A. Attwood, Jr. joined The Carlyle Group in November 2000 as a Managing Director and head of the Global Telecommunications and Media group based in New York. Under Mr. Attwood's leadership, Carlyle has committed more than $8.5 billion of equity in telecom and media investments globally since 2001. Mr. Attwood serves as a member of the Boards of Directors of CoreSite Realty, Insight Communications and The Nielsen Company. Prior to joining Carlyle, Mr. Attwood served as Executive Vice President for Strategy, Development and Planning at Verizon Communications, Inc. At Verizon (and GTE prior to that), he was responsible for the oversight of all strategic planning, alliances, ventures, corporate strategy, development and M&A activities. He was a key player in several industry-shaping transactions including the merger of Bell Atlantic and GTE (creating Verizon) and the creation of Verizon Wireless (a joint venture among GTE, Bell Atlantic and Vodafone Airtouch). Prior to his four years at Verizon and GTE, Mr. Attwood served as an investment banker at Goldman, Sachs & Co. for 11 years, working in both the New York and Tokyo offices. Mr. Attwood graduated summa cum laude from Yale University in 1980 with a B.A. in applied mathematics and an M.A. in statistics. In 1985, he received both J.D. and M.B.A. degrees from Harvard University.

– Vice Chairman
Tony Holcombe

Tony G. Holcombe has been a member of Syniverse’s Board of Directors since 2003 and led the company’s operations as president and CEO from 2006 to 2011. During his time as CEO, Mr. Holcombe’s many accomplishments included diversifying the business through several key acquisitions; defining a strategic vision that transformed Syniverse from a North American roaming and clearing house provider to a leading global provider of technology and business services to the mobile industry; and solidifying The Carlyle Group as the company’s single investor in January 2011 for $2.6 billion. Before becoming Syniverse’s President and CEO, Mr. Holcombe served as president of Emdeon Corp., formerly WebMD, and as president of Emdeon Business Services. Mr. Holcombe has more than 20 years of executive-level experience in the transaction processing and technology services industry. He was chief executive officer of Valutec Card Solutions and served in various executive positions at Ceridian Corporation, including executive vice president of Ceridian Corporation, president of Ceridian Employer Employee Services and president of Comdata. Mr. Holcombe received his bachelor’s degree from Georgia State University, where he currently serves on the Board of Advisors for the Robinson College of Business.

– Director
Kristen Ankerbrandt

Appointed to the Board of Directors in 2014, Kristen Ankerbrandt is a Principal in the U.S. Buyout Fund at The Carlyle Group focused on investment opportunities in the telecommunications, media and technology sectors. At Carlyle, she is responsible for sourcing, executing and managing leveraged buyouts and growth equity investments in the TMT sector globally. Prior to taking her position at Carlyle in 2007, Ms. Ankerbrandt held positions at Goldman, Sachs & Co. in the telecommunications and media investment banking group, private equity firm Bruckmann, Rosser, Sherrill & Co., and Amazon. Ms. Ankerbrandt received a bachelor’s degree in economics from Columbia University and a master’s degree in business administration from the Harvard Business School.

– Director
Kevin L. Beebe

Since November 2007, Kevin L. Beebe has been President and Chief Executive Officer of 2BPartners LLC, a partnership that provides strategic, financial and operational advice to investors and management. Previously, he was Group President of Operations at ALLTEL Corporation, a telecommunications services company, from 1998 to 2007. From 1996 to 1998, Mr. Beebe served as Executive Vice President of Operations for 360° Communications Co., a wireless communications company. Prior to 1996, he worked for Sprint Corporation and ATT/Southwestern Bell. Mr. Beebe also has been a director of Skyworks Solutions Inc., a semiconductor company, since 2004; SBA Communications, a wireless tower service company, since 2009; Nextel International, a wireless carrier, since 2010; and Logix, a facilities-based communications services provider, since 2016. In addition, he has been a Founding Partner and Senior Operations Adviser for Astra Capital Management since 2014.

– Director
Laura Desmond

Laura Desmond was named to the Board of Directors in 2017 and brings experience from a nearly 30-year career in marketing and media in a variety of senior leadership roles. In her last position, as Chief Revenue Officer of Publicis Groupe, she helped lead one of the largest marketing and communication companies in the world, with more than 77,000 employees in over 100 countries. Prior to that role, Ms. Desmond became one of the youngest CEOs to lead a global marketing services company when she was named to that role for Starcom MediaVest Group in 2008. In addition to overseeing a staff of over 6,000 members in more than 100 offices, she more than doubled the size of the Starcom MediaVest Group network while partnering on the marketing and communication strategies for a number of leading global brands. Previously, she served as CEO, Starcom MediaVest Group, Americas; CEO, MediaVest; and CEO, Starcom MediaVest Group, Latin America. Ms. Desmond started her career at advertising agency Leo Burnett. She holds a bachelor’s degree in business from the University of Iowa.

– Director
Julius Genachowski

Appointed to the Board of Directors in 2014, Julius Genachowski is a Managing Director in the U.S. Buyout team for The Carlyle Group, and a long-time leader in technology, media and telecommunications. Mr. Genachowski served as Chairman of the Federal Communications Commission from 2009 to 2013 and, under his leadership, the FCC took major actions to extend broadband access, accelerate the rollout of advanced mobile networks, and free up spectrum for wireless communications. Prior to his appointment to the FCC, Mr. Genachowski worked for more than a decade in the private sector, helping build IAC/InterActiveCorp, which owned and operated multiple Internet and media businesses, including Expedia, Ticketmaster and USA Network. During this period, Businessweek named Genachowski one of 25 “managers to watch” in the media sector. Mr. Genachowski has served as a board member and adviser to several public and private companies, been a Senior Fellow at the Aspen Institute, and taught a joint class at Harvard Business School and Law School. He holds a bachelor’s degree from Columbia College, a part of Columbia University, and a law degree from Harvard Law School, where he served on the Harvard Law Review.

– Director
Mark J. Johnson

Mark J. Johnson became a director of the Company in January 2011. He is the co-founder and serves as Managing Partner at Astra Capital Management, a private equity firm that primarily invests in communications and technology sectors. Prior to founding Astra Capital Management, Mr. Johnson was a Managing Director in the U.S. Buyout Fund at Carlyle where he was responsible for sourcing, executing and managing leveraged buyouts and growth equity investments in the communications sector globally. Prior to joining Carlyle, Mr. Johnson was a member of the private equity team at the Blackstone Group where he executed private equity investments in an array of industries. Mr. Johnson has also worked at JH Whitney & Co., Level (3) Communications and Merrill Lynch. Mr. Johnson served as a member of the Obama ‘08 Telecommunications, Media & Technology Policy Group and both the Technology, Innovation and Government Reform (TIGR) and Commodity Futures Trading Commission Agency Review transition teams. Mr. Johnson is a graduate of Princeton University and received a master’s degree in business administration from the Harvard Business School. Mr. Johnson has served as a member of the board of directors of Insight Communications, TRW Automotive Holdings and the governing board of St. Albans School.

– Director
Dan Mead

Appointed to the Syniverse Board of Directors in 2016, Dan Mead previously served as the President and Chief Executive Officer of Verizon Wireless until his announced retirement, following 37 years with the company.

Mead is one of the founding senior executives of Verizon Wireless, the largest wireless company in the United States. As President and Chief Executive Officer, he had responsibility for the company’s growth, financial performance, and public policy advocacy. Mead has also held several senior positions in Verizon’s parent company, including President and CEO of its FiOS and wireline operations nationwide.

Mead was a member of the Verizon Foundation Board, former Chairman of the Board of Directors of CTIA, the wireless industry’s national trade organization, and a member of the Board of Trustees of the Pennsylvania State University. He also serves on the board of directors for Terrestar.

Mead earned an MBA and a bachelor’s degree in Quantitative Business Analysis and Finance from Penn State University. An Alumni Fellow, Mead received the Penn State Distinguished Alumni Award, the highest honor given to a graduate by the University.

– Director
Raymond Ranelli

Raymond Ranelli retired from PricewaterhouseCoopers (“PwC”) in 2003 where he was a partner for over 21 years. Mr. Ranelli held several positions at PwC 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 twenty countries.

Mr. Ranelli is now a Senior Advisor to Welsh, Carson, Andersen and Stowe (“WCAS”) where his responsibilities include ensuring best practices on Audit Committees. Since his retirement Mr. Ranelli has served as chairman of eight different Audit Committees, both public and private, for portfolio companies of the Carlyle Group and WCAS.

Mr. Ranelli has held executive positions in several charitable and community organizations. He received Lifetime Achievement Awards from the Leukemia and the National Kidney Associations.