| 3M Gulf Ltd. |
| Abunayyan Holding |
| Acciona |
| ADNOC |
| Advanced Sensors |
| AES Arabia |
| Agua Via Limited |
| AI Energy Solutions |
| ALMAR WATER SOLUTIONS |
| AQUALUTION |
| Aquatech International |
| Barock Oil, Gas & Water BV |
| Bechtel Oil, Gas & Chermicals Inc. |
| BWA Water Additives UK Ltd – UAE |
| CANTY Middle East |
| CECO Environmental |
| CETCO Energy Services |
| Chevron |
| CoResource Solutions |
| Doyen Oilfield |
| DS21 CO., LTD. |
| Enhydra Ltd |
| Exterran |
| ExxonMobil |
| Forum Energy Technologies |
| Frames Group |
| Frames Middle East DMCC |
| Georg Fischer Piping Systems |
| GHD |
| Gradiant Corporation |
| Gradiant MENA |
| Hydranautics |
| Hydranautics – Nitto |
| IFP Energies Nouvelles – GeoSciences Division |
| Innov8 |
| Jorin |
| KAUST |
| Kuwait Oil Company (KOC) |
| Lenzing Technik |
| Majis Industrial Services |
| Mott MacDonald Limited |
| MyCelx Technologies Corp |
| Occidental Oman |
| Oman Oil Company Exploration & Production |
| OMV |
| Omya International AG |
| Petroleum Development Oman (PDO) |
| Produced Water Society |
| Produced Water Society Middle East |
| ProSep |
| Pureline Treatment Systems |
| Saudi Aramco |
| Schlumberger |
| Siemens |
| Sorbwater Technology |
| SS Petroleum |
| Stantec Consulting Limited |
| Stauper Offshore AS |
| SUEZ – Oil & Gas Systems |
| SUEZ Middle East |
| Sulzer Chemtech |
| TAHLIYAH |
| TechnipFMC |
| TETRA Technologies |
| TOTAL |
| Turner Designs Hydrocarbon Instruments |
| Typhonix AS |
| University of Manchester |
| Veolia Water Technologies |
| WETICO |
| Xedia Process Solutions |
| Yokogawa ME & Africa |
