Technip, France	Hitachi Zosen, Japan	Aramco, Saudi Arabia
Deutsche Babcock, Germany	Ei du pont	SAFCO, Saudi Arabia
MHI, Japan	Hyundai, South Korea	SADAF, Saudi Arabia
Nippon, Japan	Siemens, Germany	PETROMIN, Saudi Arabia
Toyo Engineering, Japan	Reliance, India	ALBA, Bahrain
BHEL, India	Larsen & Toubro	PDO,OLNG, Oman
Snamprogetti, Itlay	ONGC, India	QUDC,QASCO, Qatar
Saipem. Italy	NTPC, India	QVC, Qatar
Ansaldo, Italy	IOCL, India	Zakum Development Company (ZADCO)
ABB SAE SADELMI	NTPC, India	DUBAL,DUGAS, UAE
Fochhi SpA, Italy	GAIL, India	WED, Abu Dhabi
Lummus, USA	New Zealand Electricity & Water	DEWA, Dubai
Babcock & Wilcox, USA	MW Kellog, UK	MEW, Sharjah
Technip-Coflexip, Italy	IHI, Japan	KNPC-Kuwait National Petroleum Company
Chiyoda, Japan	HPCL, India	KOC-Kuwait Oil Company
Bechtel, UK		Abu Dhabi Company for onshore operations