Aquaporin A/S develops and commercializes biotechnology-based water filtration membranes and solutions using its proprietary Aquaporin Inside technology, which incorporates natural aquaporins for superior purification performance. Founded in 2005 and headquartered in Kongens Lyngby, Denmark, the company operates globally with key locations in Singapore, Turkey, the United States, and China, targeting industrial, municipal, food and beverage, drinking water, desalination, and medical device sectors. Core products include Aquaporin Inside reverse osmosis membranes such as the DWRO series for residential and commercial drinking water purification in standard sizes like 1812 and 4040; the CLEAR series for brackish water treatment with variants like H-CLEAR Ultra for ultra-high permeate flow and CLEAR Plus for high rejection, available in 4040 and 8040 formats; and forward osmosis modules like Hollow Fiber Forward Osmosis and Essence-GO systems for wastewater reuse, natural concentration, and low-energy processes. The company recently entered a strategic distribution partnership with Brenntag in APAC, Turkey, and China to expand wastewater treatment solutions; launched the Brackish Water Reverse Osmosis CLEAR Series in China and the Rafine PRO water purifier with Vestel in Turkey; announced promising initial results for Aquaporin Inside Generation 2 membranes ahead of pilot testing; secured repeat sales of Essence-GO systems and a USD 300,000 municipal contract in Central Asia; completed a rights issue raising DKK 172 million in 2024; and initiated a strategic review in 2025 to raise DKK 125-175 million through equity or partnerships ahead of an extraordinary general meeting on December 1, 2025.