De.mem Limited designs, builds, owns, and operates modern water treatment systems for industrial, municipal, and residential sector in Australia, Singapore, and Germany. The company offers disinfection systems, such as chlorination and ultraviolet systems; biological treatments including aerobic and anaerobic treatments; chemical treatment, such as chemical dosing systems and chemicals; and membrane based water treatment systems, including microfiltration, ultrafiltration, hollow fiber nanofiltration, reverse osmosis, membrane bioreactors, and hollow fire forward osmosis. It also provides other specialized treatment processes, such as dissolved air filtration, media filtration, and ion exchange; programmable logic controller, and De.Live monitoring systems; and sludge management comprising sludge press and zero liquid discharge. In addition, the company offers potable water supply, sewage treatment, industrial wastewater, recycling, desalination, process water, and automation solutions. Further, it provides operation and maintenance of water or wastewater treatment systems; consulting, engineering, and optimization services; and build, own, and operate/build, own, operate, and transfer services. It serves mining, infrastructure, chemicals, food and beverages, oil and gas, and electronic markets, as well as other specialty segments including aquatic, and fleet operators and car wash. The company was founded in 2013 and is headquartered in Melbourne, Australia.