Greg Stuart has served as CEO & President of the Interactive Advertising Bureau (IAB) since November 2001. The IAB is the leading association for the interactive advertising and marketing industry and represents companies responsible for selling over 85% of online advertising in the United States, including AOL, CNET, Google, MSN, Walt Disney Internet Group, Yahoo!, and over 180 other interactive leaders.

Under Greg’s leadership, the IAB expanded the groundbreaking Cross Media Optimization Study (XMOS) into the largest advertising industry research project in 2002 with eight world-leading brands (McDonalds, Colgate, ING, Universal, Ford, and others) and funding support from 25 of the world’s largest publishers. He led a consortium including the Advertising Research Foundation (ARF) and Media Rating Council (MRC) to complete and launch the industry’s first Campaign Measurement and Audit Guidelines which have the support of the American Association of Advertising Agencies (AAAA) and the Association of National Advertisers (ANA). In addition, IAB reached agreement with the AAAA for Terms & Conditions for Internet Advertising v2.0; launched the Universal Ad Package consolidating ad sizes and built a stronger IAB by increasing IAB membership five-fold, establishing approximately twenty IAB committees and increasing the IAB’s annual budget 400% in just 24 months.

Greg brings more than twenty years of experience in the interactive and advertising industries to the IAB. Before joining IAB, he served as CEO & President of DeltaClick, Inc., an advertising technology company in San Francisco, as a part of his role as Venture Partner at iMinds Ventures. He also held executive positions at Flycast Communications, Classified Ventures’ Cars.com and @webrite, inc., his New York-based marketing and business development services firm that helped AOL, Sony, Dentsu and others navigate the digital age.

Greg began his interactive career as Senior Vice President/GM of the Interactive Marketing Division at Young & Rubicam's Wunderman in New York in addition to almost a decade with a number of major New York advertising agencies serving major national brands.

A long-standing industry leader in both the Interactive and advertising arenas, Greg has served on numerous industry Boards and committees including the AAAA’s New Media Technologies Committee, Chairman of the Interactive Television Council for the ISA (Interactive Services Association) and the Board of Directors for Chicago Interactive Marketing Association (CIMA). He was also a Charter Member of the New York New Media Association (NYNMA).

Greg received a bachelor's degree in Economics from the University of Washington, Seattle.