Athens Water Supply & Sewerage S.A. is a pivotal utility company responsible for providing water supply and sewerage services in the greater Athens area. Its primary function is to ensure the availability of potable water and to manage effective wastewater treatment for residential, commercial, and industrial customers. Noteworthy features of this entity include its extensive water distribution network, encompassing numerous pumping stations, reservoirs, and kilometers of pipelines, as well as sophisticated water treatment and purification facilities that maintain high-quality standards.

Athens Water Supply & Sewerage S.A. plays an essential role in sustaining the urban infrastructure of Greece's capital city, impacting sectors such as public health, urban planning, and environmental management. As a vital public utility, it supports economic activity and contributes to the region's sustainable development by focusing on efficient resource management and ecological impact reduction. The company is integral to the local economy, promoting environmental stewardship while ensuring continued access to essential water services for millions of residents and businesses.