John Nardone is President of Mediaocean, following the July 2021 acquisition of Flashtalking, where he had presided as CEO since 2015. Prior to the acquisition, he led Flashtalking to becoming the independent leader in global ad server offering dynamic creative optimization at scale. Nardone is a first-generation ad tech pioneer who served as a founding board member of the Internet Advertising Bureau (IAB). Throughout his career, he earned recognition within the advertising community for his groundbreaking work at Pepsi, Modem Media and Marketing Management Analytics (MMA). At MMA, he had a hand in establishing marketing mix modeling, illustrating his long-standing advocacy for marketing accountability. As CEO at [x+1], through its acquisition by Rocket Fuel, Nardone helped transform that business into a top-rated data management platform (DMP).