Ion Exchange is a water and environment management company headquartered in Mumbai. It was formed in 1964 as a subsidiary of the Permutit Company of the UK and became a wholly Indian company in 1985, when Permutit divested its holding. Its site says it has offices and manufacturing facilities in 17 countries.
The company covers raw water, process and drinking water treatment, wastewater treatment, water recycling and zero liquid discharge, as well as sludge dewatering and waste-to-energy. It also makes ion exchange resins, HYDRAMEM membranes, specialty chemicals and instruments, and provides operations and maintenance, audits and consultancy, remote monitoring and project financing. Its industrial page lists food and beverage and sugar among the industries served. Ion Exchange states that it is ISO 9001, 14001 and 45001 certified, and that it has 36+ sales and service centres.