ABB Lummus Alireza ltd. Co.

Bahrain Petroleum Company (BAPCO)

Natural Gas Distribution Co. Ltd. (NGDC)

Saudi European Petrochemical Co. (IBN ZAHR)

Siemens Power Generation

Al-Jubail Petrochemical Company(KEMYA)

Arabian Petrochemical Company (PETROKEMYA)

National Titanium Dioxide Company (CRISTAL)

Petromin Lubricating Oil Ref. Co. (LUBEREF)

Saudi Industrial Resins Limited (SIR)

ABV Rock Group Riyadh (ABV)

McConnell Dowell Saudi Arabia Ltd.

Qatar General Petroleum Corporation (QGPC)

Saudi Petrochemical Company (SADAF)

Khafji Joint Opeations (K.J.O)

Bahrain National Oil Company (BANOCO)

Saudi Arabian Oil Company (SAUDI ARAMCO)

SCECO – East, South, and West

Arabian Oil Company (AOC)

National Methanol Company (IBN SINA)

Saudi Aramco Mobil Refinery Co. (SAMREF)

Saudi Basic Industries Corporation (SABIC)

Abdullah Fouad Company Ltd. (FAFCO)

Metal Services (MSTC)

Saudi Aramco Shell Refinery Co. (SASREF)

Saudi Chevron Phillips (SCP)

The Royal Commission for Jubail & Yanbu (R.C.)