John Lewis serves as President and Chief Executive Officer, ACNielsen North America. In this role he is responsible for the overall management, business performance and strategic direction of ACNielsen in the United States. Lewis is also responsible for accelerating revenue growth across all VNU Marketing Information businesses in the US.

From 1994 to 1999, Lewis served as Executive Vice President, Marketing, ACNielsen USA. During his tenure, he improved the marketing function, accelerated product development, helped restore ACNielsen’s competitive leadership position and launched new products that today account for a significant portion of US revenues.

Lewis comes to ACNielsen from his role as President and CEO of Knowledge Networks, a venture-backed marketing information company. Knowledge Networks is a leader in the online marketing survey research space. Under Lewis’ direction, the company moved from a struggling start-up to a profitable and growing leader in this segment of the industry. Knowledge Networks served many of the same clients and business issues as ACNielsen.

Prior to Knowledge Networks, Lewis ran another venture-backed start-up as President and CEO of SMS Technology, an innovative provider of packaging to the Consumer Packaged Goods industry. Earlier in his career, Lewis was one of the first employees of The NutraSweet Company, where he held a number of executive positions including General Manager of the Consumer Products Division and Chief Marketing Officer.

Lewis holds a Masters of Business Administration degree from Northwestern University’s Kellogg School of Management and an undergraduate degree in Political Science from Princeton University.