AQT Water S.A. engages in the design, manufacture, and installation of wastewater and surface water treatment and purification technologies for single-family homes, public buildings, and industries. It offers biological, passive, and local wastewater treatment plants, as well as infiltration systems, grey water treatment plants, and accessories, such as infiltrating chambers. The company also provides domestic and commercial rainwater management systems, as well as related accessories comprising internal and external filters, siphons, fill level indicators, connection systems, filling valves, decorational tanks, etc. In addition, it offers solutions for the separation of petroleum substances, including separator sponges and QPACs, and monitoring systems, as well as supplementary assortments, such as grit chambers, superstructures, measuring tanks, alarm systems, and data transfer modules. The company was formerly known as Aquatech S.A. and changed its name to AQT Water S.A. in July 2019. AQT Water S.A. was founded in 2009 and is based in Warsaw, Poland.