| Client name | City | Country |
|---|---|---|
| Saudi Arabian Oil Company | Dhahran | Saudi Arabia |
| Saudi Aramco | Dhahran | Saudi Arabia |
| Saudi Basic Industries Corporation | Riyadh MDP | Saudi Arabia |
| Saudi International Petrochemical Company | Jubail Industrial City | Saudi Arabia |
| Saudi Petrochemical Company | Jubail Industrial City | Saudi Arabia |
| Saudi Yanbu Petrochemical Company | Yanbu | Saudi Arabia |
| Sidcco | Baghdad | Iraq |
| SMART INTERNATIONAL COMPANY FZE. | Dubai | United Arab Emirates |
| STAR RAFINERI A.S. | Sariyer, ISTANBUL | Turkey |
| Taktaz Instrument Equipment Co. | ||
| Tebodin & Partner LLC | Muscat, Al Athaibah | Oman |
| TECH.CONTROL | Tehran | |
| Technomad Ltd. | Tel-Aviv | Israel |
| TEKFEN Engineering | Sisli/Istanbul | Turkey |
| ThyssenKrupp Industrial Solutions | Doha | Qatar |
| Wood Group - CCC Limited | Muscat | Oman |
| Worley Oman Engineering LLC | Al-Khuwair, Muscat | Oman |
| Yanbu National Petrochemical Company | Yanbu Industrial City | Saudi Arabia |
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