Headquartered in Chicago with offices throughout the U.S., WHITTMANHART Interactive is an ideas-driven agency that creates cu ... tting edge, user friendly digital solutions. Listed on both Ad Age and Adweek’s top 50 lists and recognized as one of Ad Age’s hottest independent digital agencies in the U.S., WHi delivers outstanding, engaging services and solutions to help clients, including AT&T, Budweiser, Harley-Davidson, Pepsi, Scion, Sears and Sony Pictures, achieve maximum business performance. read more