- Manufacturers of equipment for hydrotechnical structures: water supply, sewerage, water use, protection from floods and erosion...
- Manufacturers of measuring instruments;
- Manufacturers of equipment for systems automation, monitoring and control;
- Manufacturers of equipment , devices and instruments for water and wastewater control;
- Planning and engineering firms specializing in water management: water supply, sewerage and the environment protection (protection of water against pollution); protection from floods and erosion; and use of waters (navigation, water power generation and irrigation);
- Companies producing water modelling software;
- Scientific and expert organizations, universities, research institutes from the water sector;
- Contractors – construction and installation companies working on the construction of water management facilities, waterworks and sewerage;
- Institutions and organizations financing the water management sector through funds and loans