Hill Holliday is a full-service marketing and communications agency based in Boston, Massachusetts with offices in New York City and Greenville, South Carolina. It is the 14th largest advertising agency in the U.S. and is part of the worlds third largest advertising and marketing conglomerate, IPG. Karen Kaplan serves as Chairman and CEO of the agency, having worked there since 1982 when she was hired as a receptionist. She has been named one of the "100 Most Influential Women in Advertising" by Advertising Age. Hill Holliday was founded in Boston in 1968 as Hill, Holliday, Connors, Cosmopulos, Inc. by partners Jack Connors, Jay Hill, Steve Cosmopulos and Alan Holliday. It was acquired by IPG in 1998.