BP: Argentina, Norway, United Kingdom, United States (Alaska, Gulf of Mexico)
ConocoPhillips: United Kingdom, United States (Alaska, Gulf of Mexico)
ExxonMobil: Angola, Australia, Canada, Norway, Saudi Arabia, United States (Alaska, Gulf of Mexico)
Petrobras: Brazil
Saudi Aramco: Saudi Arabia
Shell: Gabon, Norway, Qatar, Russia, Saudi Arabia, Sultanate of Oman, United Kingdom, United States (Gulf of Mexico)
Talisman: Norway, United Kingdom
Total: Angola, Congo, Gabon, Indonesia, Netherlands, Norway, Qatar
GDF-Suez: Netherlands
Manitoba Hydro: Canada
Suncor: Canada
Diamond Offshore: Norway, United Kingdom
ENSCO: Angola, Denmark, Indonesia, Qatar, United Arab Emirates, United Kingdom,
Noble Drilling: Netherlands, Qatar, Singapore, United Kingdom, United States (Gulf of Mexico)
Seadrill: Angola, Brazil, China, Indonesia, Mexico, Norway, Saudi Arabia, United States (Gulf of Mexico), Vietnam
Teekay: Brazil, Norway, Qatar, United Kingdom
Transocean: India, Malaysia, Netherlands, Norway, Qatar, Saudi Arabia, Thailand
Anglo American: Chile, Peru
Barrick Gold: Australia, Chile, Dominican Republic, Peru, Tanzania
BHP Billiton: Australia, Brazil, Chile, Gabon, Peru
Codelco: Chile
Freeport McMoran: Democratic Republic of Congo
Rio Tinto: Australia, Guinea Conakry, Madagascar, Russia
Vale: Brazil, New Caledonia, Peru
Xstrata: Australia, Chile, Peru
Bechtel: Peru
Fluor Daniel: Canada, Qatar
Foster Wheeler: Australia
Halliburton: Algeria, Congo, Qatar, United States (Gulf of Mexico)
Punj Lloyd: Oman, Qatar,
Samsung engineering: United Arab Emirates
(Source: Sodexo, FY 2012, Remote Sites services)