Hudson Technologies Inc. operates as a refrigerant services company in the United States and internationally. The company sells reclaimed and virgin refrigerants, and industrial gases; and provides refrigerant management services, which primarily include reclamation of refrigerants and laboratory testing. It also separates crossed refrigerants; and provides re-usable cylinder refurbishment and hydrostatic testing services. In addition, the company provides RefrigerantSide services consisting of system decontamination to remove moisture, oils, and other contaminants, as well as refrigerant recovery and reclamation services. Further, it offers predictive and diagnostic services that are intended to predict potential problems in air conditioning and refrigeration systems under the Chiller Chemistry, Chill Smart, and Fluid Chemistry names; and SmartEnergy OPS service, a Web-based real time continuous monitoring service that identifies inefficiencies in the operation of air conditioning and refrigeration systems. Further, it participates in the generation of carbon offset projects. The company serves commercial, industrial, and governmental customers, as well as refrigerant wholesalers, distributors, contractors, and refrigeration equipment manufacturers; and customers in petrochemical, pharmaceutical, industrial power, manufacturing, commercial facility and property management, and maritime industries. Hudson Technologies, Inc. was founded in 1991 and is headquartered in Pearl River, New York.