By 2050, the world's population will have increased by 40%. The growth in demand for drinking water will rise even faster, with a projected 80% increase, due to better access to infrastructure and growing needs. Urbanization will lead to an increase in water demand related to industry and energy. Livestock and agriculture will increase their consumption to meet the demand. Although 70% of our blue planet is covered with water, only a tiny portion is accessible and drinkable. In order to meet the needs of populations, the development of infrastructures and major technological progress will be necessary. This thematic list contains forty players in the water market, drawn from among a hundred or so listed companies linked to the sector. It includes companies that process and sell water as well as equipment, food and irrigation specialists. This list is very cosmopolitan, with many countries represented: United States, China, Hong Kong, United Kingdom, Singapore, Switzerland, Japan, Australia, France, Poland, India, Greece, Indonesia, Finland, United Arab Emirates, Canada, Austria, Bangladesh and Estonia. This sector is going to undergo major changes, take advantage of them and take the plunge.