| Sr. No | Company Name | Country |
| 1 | Sheida International LLC (for Petrofac International, Oman Refinery Petroleum Company, Arabian Industries, Ray International Oman,GUTech Oman, MAPNA Group Iran, Kentz Abu Dhabi, Eastern International UAE, MacDonald Oman, Qatar Building Material Company Qatar, L & T Oman/UAE) | Oman |
| 2 | Al Melehy Trading LLC ( for ADMA-OPCO, ADGAS, ADNOC, GASCO, Takreer, NPCC) | UAE |
| 3 | Gulfar Al Misnad WLL | Qatar |
| 4 | Al Hassan Engineering LLC | Oman |
| 5 | Al Turki Enterprises LLC | Oman |
| 6 | Al Romal Golden Petroleum Services | Oman |
| 7 | Seeh Al-Sarya Trading LLC | Oman |
| 8 | United Way Projects LLC | Oman |
| 9 | Petro Energy Contracting | Sudan |
| 10 | Star Contracting Company | Sudan |
| 11 | Penta Global Inc. | UAE |
| 12 | HOT Engineering | Kuwait |
| 13 | Al Saad Recruitment Services (for Sohar Technical Service Oman, Al Nahda Trading Oman) | UAE |