Hill Holliday (HH) is a marketing and communications agency based in Boston, Massachusetts with offices in New York City and Greenville, South Carolina.[1][2] It is the 17th largest advertising agency in the U.S.[3]
History
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.[4] It was acquired by IPG in 1998,[5] and sold to Attivo in 2024.[6]