Saatchi & Saatchi Is N.Y. Bound

Saatchi & Saatchi is shifting its global headquarters from London to New York as it becomes part of a Paris-based entity that will be called Publicis Groupe S.A., sources said.

Behind the shift is the pending arrival here of two London-based executives: worldwide creative director Bob Isherwood and chairman international Alan Bishop. Isherwood arrives this week; Bishop, who focuses on new-business development, is expected by the end of the month, sources said.

Although they’re global players who travel frequently, Isherwood and Bishop have been based in London, the agency’s ancestral home.