Golin/Harris CEO Rich Jernstedt said Wolff's departure was 'a joint idea'.
'He was ready to move on to another challenge, feeling he had done what he set out to do with our New York office,' Jernstedt said. 'He's ready for his next challenge.'
Wolff joined the agency five years ago from Kekst & Company. He was brought on board to beef up Golin/Harris' financial communications business.
Golin/Harris' New York office was hit hard by the loss of the IBM account last year, reporting a 36 per cent drop in overall revenues to just £14m, according to PRWeek and Council of PR Firms rankings.
Jaime dePinies, MD of Golin/Harris' Madrid office and its chief economist, will become worldwide director of the financial communications and IR practice.