Aquatech International is a global water systems integrator, with strengths in industrial water and wastewater, focusing on desalination, reuse and zero liquid discharge. Aquatech has executed full turnkey O&M contracts for semiconductor manufacturers to improve wastewater facilities, and has experience in designing Zero Liquid Discharge systems for major manufacturers. In 2011, Aquatech expanded its condensate polishing portfolio through a partnership with German company WasserBauGesellschaft Kulmback GmbH.

QUA Group, a developer and manufacturer of advanced membrane products, is a subsidiary of Aquatech. A flagship product of QUA is Fractional Electrodeionization (FEDI) which allows for higher flexibility and tolerance to inlet water conditions than other electrodeionization products. It also provides ultrafiltration and ceramic membranes.

Ecolab is an affiliate of Aquatech, owning a 33% share.