Board of Directors

Board of Directors

Brent D. Rosenthal

Non-executive Chairman

Brent D. Rosenthal has served as Chairman of the Board of the Company since April 2018, and as a Director since January 2016. Mr. Rosenthal is the Founder of Mountain Hawk Capital Partners, LLC, an investment fund focused on small and micro-cap equities in the technology media telecom (TMT) and food industries. Mr. Rosenthal also serves as Chairman of the Board of Directors of RiceBran Technologies (NASDAQ:RIBT). 

Previously, Mr. Rosenthal was a partner in affiliates of W.R. Huff Asset Management, where he worked from 2002 through 2016. Mr. Rosenthal played a key role in the firm’s TMT and food investment activities. Mr. Rosenthal also served on the board of directors of Rentrak (NASDAQ: RENT) from 2008 through 2016, including as non-executive chairman of the board from 2011 through 2016. From 2006 through 2012, he served as an adviser to and observer of the board of directors of Virgin Media (NASDAQ: VMED) and as a consultant to the company, providing turnaround and crisis-management services, as well as operational and financial analysis and recommendations. From 2007 through 2010, he served as an adviser to the executive management of Time Warner Cable (NASDAQ: TWC).

In 2016, Mr. Rosenthal was named a Multichannel News “Money All-Star,” a top 10 media executive in private equity, investment banking and advisory. In 2009, he was included in Multichannel News' annual "40 Under 40" list for influencing the future of cable and telecommunications.

Earlier in his career, Mr. Rosenthal was director of mergers and acquisitions for RSL Communications Ltd. and served emerging media companies for Deloitte & Touche LLP. Mr. Rosenthal is an inactive Certified Public Accountant.

Mr. Rosenthal earned his B.S. from Lehigh University and MBA from the S.C. Johnson Graduate School of Management at Cornell University.

Bill Livek

Vice Chairman & Advisor to the CEO

Bill Livek has been in the business of measuring consumer behavior for more than three decades. 

As Vice Chairman & Advisor to the CEO, Mr. Livek’s passion for the media, marketing and entertainment industries spurs him to be a driving force for innovation in consumer and audience measurement. Since joining Comscore in 2016, Mr. Livek has also served as the company’s Executive Vice Chairman & President, as well as Principle Executive Office.

Prior to joining Comscore, Mr. Livek served as Vice Chairman & Chief Executive Officer at Rentrak, where he spearheaded the next generation of products to precisely measure movies and TV everywhere. Mr. Livek previously served as Co-President of Experian Research Services, Co-Chair/Co-Owner of Simmons Market Research Bureau, Co-Founder of Transactional Data Solutions (an LLC with MasterCard), Vice President of Sales/Marketing for Arbitron and was a principal shareholder in Birch Research, which was later integrated into Scarborough Research, where he served as President and CEO. 

Mr. Livek draws upon his industry experience and audience measurement expertise as a frequent speaker at advertising industry events. When he’s not working towards the advancement of Comscore’s initiatives, Mr. Livek loves riding his road bicycle on the weekends. His idea of a great vacation is a scenic, weeklong bike trip.

Bryan Wiener

Chief Executive Officer

Bryan Wiener is a 25-year advertising industry veteran who specializes in successfully growing companies in highly-disruptive environments.

Before joining Comscore as Chief Executive Officer, Mr. Wiener served first as CEO and later as executive chairman of 360i, where he pioneered a new kind of agency designed to help brands capitalize on change, leveraging deep expertise in data, technology and innovation to drive measurable impact across all media platforms. While there, Mr. Wiener scaled the company from fewer than 40 to more than 1,000 employees worldwide, and partnered with some of the largest and most iconic brands in the world including Coca-Cola, Nestle, Mondelēz, Capital One, NBCUniversal and Pernod-Ricard at a critical moment when marketers were grappling to effectively reach their customers. In 2010, 360i’s position as a leader in the new media landscape led the company to be acquired by global advertising holding company Dentsu Inc. After almost a decade as CEO, Mr. Wiener became executive chairman of 360i in 2014.

From 2014 through 2015, Mr. Wiener concurrently served as chairman of Expion, a social content marketing software company that was successfully acquired by Sysomos. Mr. Wiener also previously held a series of senior management positions at public companies including serving as president of global services at the early VoIP software company Net2Phone, where he led a two-year, $75 million EBITDA turn-around. Prior to Net2Phone, Mr. Wiener served as general manager at, one the first-ever social media companies. 
Mr. Wiener currently serves on the Agency Advisory Board for the Interactive Advertising Bureau (IAB) and the S.I. Newhouse School of Public Communications at Syracuse University, where he was inducted into the world-renowned media and communications school’s Hall of Fame. Mr. Wiener has been named a "Media Maven" by Advertising Age and to the "Mediaweek 50 List" (now part of Adweek). 

Dale Fuller


Dale Fuller is a proven technology executive with extensive senior management experience across a wide range of consumer and enterprise companies. 

Throughout his career, Mr. Fuller served as both an executive officer and a director of private and publicly traded technology companies. Currently, Mr. Fuller serves as chairman of the board at MobiSocial, Inc., a technology startup. Previously in his career, he served as a director at Quantum Corporation, a scale-out storage, archive and data protection company, as well as chairman of the Supervisory Board at AVG Technologies N.V., a mobile security, PC optimization, Internet security and privacy software company. Additionally, Mr. Fuller served on the board of directors of Zoran Corporation, a multinational digital technology company, from March 2011 until its merger with CSR plc in August 2011; was chairman of the board of directors at Webgistix Corporation, an e-commerce fulfillment company, from October 2008 through January 2013; and served as a director at Phoenix Technologies, Ltd., a BIOS software company, from November 2009 to November 2010.  Mr. Fuller has also served on the boards of directors at Guidance Software, Inc., Krugle, Inc., Quest Aircraft Company, LLC and McAfee, Inc.  

Mr. Fuller’s executive experience includes serving from 2008 to 2013 as president and chief executive officer at MokaFive (n/k/a moka5, Inc.), a venture-backed private company. Additionally, Mr. Fuller served as interim president and CEO at McAfee from October 2006 through March 2007.  Prior to that, he was president and CEO at Borland Software Corporation from 1999 to 2005 and also previously served as president and CEO of WhoWhere? Corporation, which was later acquired by Lycos, Inc. As a start-up company CEO, Mr. Fuller led the expansion of several domain sites, including and He has also previously held various senior executive positions at Apple Computer, NEC, Motorola, and Texas Instruments.   

Mr. Fuller brings extensive leadership experience and technology expertise to his role as a director on the Comscore Board. 

Jacques Kerrest


Mr. Kerrest is the Executive Vice President and CFO of Intelsat, a leading satellite service provider. He is responsible for the leadership of Intelsat’s financial operations, which includes capital markets, accounting, treasury, financial planning, investor relations and corporate development. He is a member of the company’s Management Committee.

Prior to his appointment at Intelsat in February 2016, he has held executive-level roles at numerous leading technology and communications companies, including DPC Data Inc., ActivIdentity Corporation, Virgin Media PLC, Equant Inc., Harte-Hanks, Inc, Chancellor Broadcasting Company and Positive Communications.

Mr. Kerrest received his Master of Science Degree from Faculte Des Sciences Economiques in Paris, France, and a Masters of Business Administration from Institut D’Etudes Politiques De Paris in Paris, France as well as the Thunderbird School of Global Management in Glendale, Arizona.

Paul Reilly


Paul Reilly is a global strategist and seasoned financial executive with first-hand understanding of operating in the global marketplace.  He is currently a member of the board of directors of Cabot Microelectronics Corporation and Assurant, Inc.  Most recently, Mr. Reilly served as EVP of Arrow Electronics, Inc., a global provider of products, services and solutions to industrial and commercial users of electronic components and enterprise computing solutions, until he retired in February 2017.  Prior to that, he served in numerous senior executive roles at Arrow Electronics, including as EVP, Finance and Operations, CFO, SVP and Head of Global Operations. He joined Arrow Electronics in early 1991 and held various positions within the company prior to assuming the role of CFO in 2001. Before joining Arrow Electronics, Mr. Reilly worked in the business assurance practice of the New York office of KPMG Peat Marwick. He is a certified public accountant.

Rob Norman


Rob Norman served as chief digital officer of WPP's GroupM prior to his retirement at the end of 2017 after 33 years in the media industry. GroupM is the world's largest media investment group.

During his career, Mr. Norman was regarded as a trusted thought leader and commentator on the disruptive forces in media, advertising, and commerce; much of this was captured in GroupM's “Interaction” report, which he authored from 2007 to 2017 and shared with his 350,000 followers as a LinkedIn Influencer. In his role at GroupM, Mr. Norman advised advertisers in every category from CPG to financial services and telecommunications. He works extensively in both developed and fast growth markets and has maintained close relationships as both customer and advisor with Google, Facebook, LinkedIn, Twitter, Amazon, SNAP, NBC Universal, News Corp and many others.

Mr. Norman was a founding member of the Facebook and Twitter client councils. Currently, he sits on the board of BBC Global News Limited and is a governor of the Center for the Digital Future at USC's Annenberg School.