An international organization is a group that includes two or more countries and that operates in more than one country. Non-profit organizations operate for the public good, rather than for monetary gain. Many international non-profit organizations share the latest techniques and knowledge about managing the water resources of the world. These international organizations focus mainly on improving the water supply, preventing and treating water pollution, and educating the public about conserving water.

A significant part of humanity, especially in developing countries, lives in areas where water is in short supply. Over 1 billion people in the world are without access to enough water, and over one-third of all people on Earth lack proper sanitation facilities, including the means to purify water and wastewater (water used by humans, animals, or industry). As a result, more than 3 million people die each year from diseases caused by contaminated...