Saudi Arabia is leading with 37 companies  with Saudi Aramco at #1,  the U.A.E.  goes next  with 20 Companies Led by the First Abu Dhabi Bank at #4.  Qatar is third with 17 companies led by QNB at #2.

The banking and financial services  seem to be the most succesful . Then comes  the construction and industrials sectors . Telecommunications is third one .

 see the full list here