1. Abu Dhabi Company for On Shore Oil Operations (ADCO)
2. Abu Dhabi Gas Industries Ltd (GASCO)
3. Petrofac International Limited (PIL)
4. Consolidated Contractors Company (CCC)
5. National Petroleum Construction Company (NPCC)
6. Habtoor Leighton Group (HLG)
7. TEKFEN
8. Al Jaber Energy Services (AJES)
9. Sinopec
10. Kentech
11. Saipem