Administration of technical affairs in the holy sites and the capital 1378 Bekanntmachung Mecca Economic Cities and Special Zones Authority 26 Bekanntmachung Riyadh Thabat Construction Company Ltd. 2 Bekanntmachung Jeddah Madinah Region Development Authority 87 Bekanntmachung Medina National Center for Water Efficiency and Rationalization 24 Bekanntmachung Riyadh Weiterlesen