| Organisation (4) : | Org. acronym: | Governor: | Alternate: | org. Nationality: |
| African Ministers' Council on Water | AMCOW | MBAZIIRA RASHID | KANSHIO COMFORT | International |
| IHE Delft Institute for Water Education | IHE Delft | Moors Eddy | De Fraiture Charlotte | Netherlands |
| Scientific Information Center of Interstate Commission for Water Coordination in Central Asia | SIC ICWC | Ziganshina Dinara | Usmanova Oygul | International |
| Permanent Joint Technical Commission for Nile Waters | PJTC | gharib Aref | Usama Sief El Din Sayed LOAY | Egypt |
| Organisation (10) : | Org. acronym: | Governor: | Alternate: | org. Nationality: |
| Ministry of Equipment and Water - Morocco | MEE | ZIYAD Abdeslam | Zriouli Fairouz | Morocco |
| International Economic & Technical Cooperation and Exchange Center | INTCE | JIN Hai | CHI Xinyang | China |
| Ministry of Environment - Republic of Korea | MoE | Sohn Ok-joo | Lee Kwan-suk | South Korea |
| Ministry of Ecological and Solidarity Transition - France | MTECT / DGALN / DEB | THIBAULT Olivier | CHOISY Guillaume | France |
| Ministry of Interior - Hungary | BM | Kovacs Peter | Nagyné Sós Ida | Hungary |
| National Water Research Center | NWRC | Ramadan Khaled | El Saadi Aiman | Egypt |
| General Directorate of State Hydraulic Works - Turkey | DSI | AKCA LUTFI | DINCERGOK TUNCER | Turkey |
| Agence nationale de l’assainissement | ONAS | DIOP Papa Samba | Mbaye Ababakar | Senegal |
| Regulatory Agency for Water, Energy and Basic Sanitation of the Federal District | RIBEIRO RAIMUNDO | PALAZZO FELIX | Brazil | |
| National Water Exploitation and Distribution Company | SONEDE | HELALI MOSBAH | Allaoui Moez | Tunisia |
| Organisation (6) : | Org. acronym: | Governor: | Alternate: | org. Nationality: |
| Marseille Water Company | SEM | FAUCHON Loic | BORNI Marie | France |
| Office National de l'Electricité et de l'Eau Potable - Maroc | ONEE (Ex ONEP) | EL HAFIDI ABDERRAHIM | EL KASMI ASMA | Morocco |
| Basic Sanitation Company of the State of Sao Paulo | Sabesp | Costa Sanches Marcel | Ragazzi Pauli Dante | Brazil |
| Changjiang Survey and Planning and Design Research Co., Ltd. | CSPDR | Zhang Zhijian | Dai Wanli | China |
| Professional Federation of Water Operators | FP2E | PELLEGRINI Maximilien | SUAREZ ALLER Alejandra | France |
| Dolsar Engineering | DOLSAR | Aker H. Irfan | Aker M. Sinan | Turkey |
| Organisation (5) : | Org. acronym: | Governor: | Alternate: | org. Nationality: |
| Japan Water Forum | JWF | Ishiwatari Mikio | Asayama Yumiko | Japan |
| Korea Water Forum | KWF | KWAK Kyul Ho | Namkung Eun | South Korea |
| The Nature Conservancy | TNC | Erickson- Quiroz Andrea | Kihara Fred | United States of America |
| Brazilian Association of Regulatory Agencies | BENEVIDES VINICIUS | FRANCO FERNANDO | Brazil | |
| Moroccan Coalition for Water | COALMA | TAZI-SADEQ Houria | FIKRAT Mohammed | Morocco |
| Organisation (10) : | Org. acronym: | Governor: | Alternate: | org. Nationality: |
| Asia Water Council | AWC | Park Jae-hyeon | Cho Yong-deok | South Korea |
| International Water Resources Association | IWRA | Li Yuanyuan | Clench Callum | International |
| Chinese Hydraulic Engineering Society | CHES | TANG Xinhua | WANG Yanwei | China |
| International Office for Water | TARDIEU Eric | Laronde Stéphanie | France | |
| American University of Beirut - Faculty of Agricultural and Food Sciences | AUB | Mohtar Rabi | Farajallah Nadim | Lebanon |
| Portuguese Association of Water and Wastewater Services | APDA | Godinho Rui | Zenha J. Henrique | Portugal |
| Daugherty Water for Food Global Institute at the University of Nebraska | DWFI | McCornick Peter | Neale Christopher | United States of America |
| Turkish Contractors Association | TCA | Eren Mehmet Erdal | Yalçın Hasan | Turkey |
| Mediterranean Water Institute | IME | MEYSSONNIER Alain | BURAK Zinet Selmin | International |
| International Commission on Large Dams | ICOLD | Lino Michel | de Vivo Michel | International |