AUSTIN, Texas, Feb. 06, 2017 -- Sizmek, the leading open ad management company for multiscreen campaigns, announced today that Sizmek’s Neil Nguyen will be leaving the company and Dr. Mark Grether has been appointed as Executive Chairman by Sizmek’s Board of Directors. Dr. Grether will work with Neil Nguyen during a transition period as well as spearhead execution of Sizmek’s strategy and growth as the premier independent adtech company.
As the co-founder and global Chief Operating Officer of WPP’s Xaxis, the largest programmatic media company in the world, Dr. Grether comes to Sizmek with a wealth of agency experience, having worked with the largest brands across a variety of industry verticals, including automotive, retail and CPG. Prior to Xaxis, Dr. Grether was the Global Development Director of GroupM, the world’s largest media investment group.
“We are excited to welcome Mark to the team. He’s an accomplished executive with deep experience building and scaling up global companies, particularly in the digital media and advertising space,” said Alex Beregovsky, Sizmek Board Member and Managing Director at Vector Capital, Sizmek’s investor. “We sincerely thank Neil for the great legacy he leaves at Sizmek and wish him all the best in his new endeavors. We look forward to working with Mark to accelerate Sizmek’s growth and success.”
“It has been an amazing and richly fulfilling 13 year journey,” said Neil Nguyen, Sizmek CEO and President. “I’m truly grateful to all of our global employees, my talented leadership team, our partners and clients around the world for the opportunity. We closed out 2016 with strong results and are proud of what we were able to achieve. I remain a big fan of Sizmek and under Vector’s ownership as well as Mark’s guidance, it is well positioned to continue to be a market leader in advertising technology.”
“Sizmek has developed a strong presence in the digital marketing industry, working to revolutionize how marketers and advertisers balance technology and creative on behalf of their clients,” said Dr. Grether. “Impressed by the technological assets and product roadmaps, I look forward to guiding the company and its leadership team and accelerating the growth of the business, while providing the highest level of service to our customers who rely on Sizmek’s open ad management capabilities for their multiscreen campaigns.”
About Sizmek:
Sizmek is the Open Ad Management company that brings freedom of choice and contextual relevance to omnichannel digital advertising. As the largest independent ad server, more than 42,000 next generation advertisers, agencies, publishers, and trading desks rely on Sizmek’s offerings and flexible third-party platform integrations to provide the industry’s most customizable, best-in-class approach to creating seamless workflow across a wide variety of partners in the digital advertising ecosystem. With a single point of access to the best technology, data, and strategic guidance, Sizmek builds flexible solutions for marketers and publishers that combine programmatic efficiency with creative. Sizmek operates in more than 70 countries, with local offices, providing award-winning service throughout North America, EMEA, LATAM, and APAC.
Contact: Travis DeLingua [email protected]


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