Harmesh developed the initial analytical techniques for the THM-100 products of online THM monitors and offline analyzers. Prior to joining AMS, Harmesh was the manager of the Water Lab, Balazs Analytical Laboratory, a leading provider of analytical services for semiconductor and other high-tech industries concerned about contamination that was acquired by Air Liquide. Harmesh developed High Performance Liquid Chromatography (HPLC) and Preparative High Performance Liquid Chromatography (PHPLC) at Dionex, Inc., a leading provider of liquid chromatography analysis instrumentation.