Based in Naperville, IL, USA
Acquired by Ecolab in 2011, Nalco Water is a leader in water treatment technologies. As well as providing solutions for air handling, chemical delivery, cooling water systems, and reverse osmosis for ultrapure water production, Nalco also offers testing, inspection and analytical services. The company's flagship 3D TRASAR technology digitally monitors water parameters for cooling water systems to help optimise chemical dosing. Nalco's process-critical closed loops, which help control temperature, have been implemented in semiconductor fabs to prevent microbiological build-up and corrosion. Previous major clients of Nalco include NXP Semiconductor and Samsung Austin Semiconductor.