The name H2Opinion is a combination of two words: "H2O" and "Opinion". H2O is the chemical name for water and Opinion is the English word for opinion which is a synonym for opinion, advice, point of view, vision and conviction. All of these terms have a relationship to the work and methods of H2Opinion. H2Opinion provides advice and support in the field of Integrated Water Management and is active in both rural and urban water management. The advice and support can be related to (geo)hydrology, water quality and ecology or a combination of these knowledge fields (integrated water management).