National Petroleum Construction Company (NPCC)
UAE
Sipchem - IBM
Saudi Arabia
Tatweer Petroleum
Bahrain
Advanced Petrochemical Company
Saudi Arabia
China Oilfield Services Limited (COSL)
UAE, Saudi Arabia and 1 more
Lahmeyer International
Saudi Arabia
Occidental Petroleum Corporation - USA
Qatar, Oman
Expro
UAE, Saudi Arabia
Abu Dhabi Oil Refining Company (TAKREER)
UAE
SaudConsult
Saudi Arabia