LiqTech International, Inc. designs, develops, produces, markets, and sells automated filtering solutions and systems across the Americas, Asia-Pacific, Europe, the Middle East, and Africa. It operates through three segments: Systems and Aftermarket; Filters and Membranes; and Components. Under the LiqTech brand, the company offers silicon carbide ceramic filtration technologies for liquid and gas purification, including hybrid technology membranes and aqua solutions, as well as diesel particulate filters for exhaust emission control. It also provides liquid filtration systems for pool and spa water, produced water, marine water treatment for dual fuel engine vessels, and industrial applications, and is involved in plastics manufacturing such as machining, welding, bending, and solvent cementing. Products are sold through direct sales, systems integrators, distributors, agents, and partners. The company was founded in 2000 and is headquartered in Ballerup, Denmark.