Breish held the following directorships during his banking career: Chairman of ABC Islamic Bank in Bahrain; Chairman of ABC Securities; Chairman of the Bahrain Stock Exchange Audit Committee, and Board member of the Bahrain Stock Exchange ; Chairman at ABC Daus Germany; Director at Banque Internationale de Monaco; Director at Sun Hung Kai Bank in Hong Kong; Director at United Bank of Bangkok Thailand; and held the Chairmanship of the Foreign Banks and Securities Houses Association (FBSA) in London.
