Water companies are organizations that provide clean and safe drinking water to homes and businesses. They source water from various places, such as rivers, lakes, and underground aquifers, and treat it to remove impurities. These companies ensure that the water meets health and safety standards set by government regulations. In addition to supplying water, many water companies are responsible for managing wastewater. This involves collecting and treating used water before returning it to the environment. Some well-known water companies include American Water Works and Veolia, which operate in different regions and serve millions of customers worldwide.